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Join Contentful as a Senior Backend Engineer specializing in our cutting-edge AI Platform. In this pivotal role, you will architect and develop robust backend systems that support our innovative AI solutions. Collaborate with a dynamic team of engineers and data scientists to design scalable APIs and enhance our platform's capabilities.
Contentful is a leading content management platform that empowers teams to create, manage, and deliver digital content seamlessly. Our innovative solutions enable businesses to enhance their customer experiences through flexible content delivery and robust API integrations.
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About usOwkin is a pioneering AI company dedicated to unraveling the complexities of biology. Our goal is to develop the first Biology Super Intelligence (BASI) by integrating advanced biological large language models, diverse patient data, and intelligent software. Central to our innovation is Owkin K, an AI copilot, and our specially fine-tuned LLM, Owkin …
Heidi Health
About UsAt Heidi, we are pioneering an AI Care Partner that assists healthcare professionals at every stage, from documentation to patient care delivery. Our mission is to enhance healthcare capacity while maintaining a deeply human touch. In just 18 months, we have reclaimed over 18 million hours for clinicians and facilitated more than 73 million patient visits. Currently, Heidi powers over two million patient interactions weekly across 116 countries in more than 110 languages.Founded by healthcare professionals, Heidi unites clinicians, engineers, designers, scientists, creatives, and mathematicians, all dedicated to enhancing the human connection central to healthcare. With nearly $100 million in funding, we are expanding our reach in the USA, UK, Canada, and Europe, collaborating with major health systems, including the NHS and Beth Israel Lahey Health, among others.We are agile in our approach, focused on what works, and poised to shape the future of healthcare. Are you ready to take on this challenge?Your RoleAs a Senior Backend Engineer, you will be instrumental in executing backend features, leveraging your deep technical understanding to meet user requirements. You will thrive in a hyper-growth startup environment, with substantial experience in building SaaS products.With a solid grasp of the challenges engineers face, you will prioritize key features and capabilities through effective design principles. Your ability to bridge technical specifics with business needs will enable you to transform high-level concepts into practical solutions.Embracing challenging scenarios, you will appreciate the dynamics of a flexible, flat-structured work environment and quickly navigate the complexities of developing AI healthcare products on an international scale. We believe that exceptional talent can emerge from diverse backgrounds; if you have a proven history of delivering technically demanding products and features, we want to hear from you.
Senior Full‑Stack/AI Engineer (Backend-leaning)About Us:At AND Digital, we are a forward-thinking tech company committed to enhancing digital delivery and bridging the digital skills gap. Since our inception in 2014, we have partnered with organizations to create exceptional digital products and to strengthen their digital teams.Our mission is to leave a lasting legacy for our clients. We achieve this by fostering close relationships within our regional offices or ‘Clubs’, ensuring that our partners receive priority service from a dedicated local team.This innovative approach has led to significant success for both our clients and ourselves, as demonstrated by our impressive organic growth since 2014. We now boast over 1,300 talented individuals across Clubs throughout the UK and Europe, with ambitious plans for global expansion in the coming years.Join us on our mission to close the world’s digital skills gap!What You Will Contribute:Core Technical Skills:Extensive hands-on experience in backend engineering, proficient in one or more languages such as Java, Node.js, TypeScript, Python, or Go, with the flexibility to work across multiple languages as necessary.Proven track record in designing and implementing scalable, resilient, and maintainable backend systems, including REST/GraphQL APIs, event-driven architectures, and distributed services.Hands-on experience with AWS (including services such as Lambda, ECS, DynamoDB, SQS/SNS, API Gateway, Step Functions, etc.) and a strong grasp of cloud-native patterns. Familiarity with GCP, Azure, or other cloud platforms is a plus.Solid experience in Infrastructure as Code (preferably Terraform), CI/CD pipelines, and modern deployment methodologies.Comfortable working across the entire tech stack, contributing to frontend codebases when required, while maintaining a primary focus on backend and systems engineering.Demonstrates technical leadership by shaping architectural direction, reviewing designs, and exemplifying high-quality engineering practices.A strong foundation in system design, including trade-off analysis, performance considerations, observability, and operational readiness.Able to take ownership of complex technical challenges, make pragmatic decisions, and articulate reasoning effectively to both technical and non-technical stakeholders.AI & Emerging Technologies:Hands-on experience integrating AI into backend systems, such as orchestrating AI services, creating AI-driven workflows, or utilizing AI tools to enhance engineering productivity.Experience in developing AI-enabled systems (including solutions based on LLM or RAG) from MVP or proof-of-concept to production-ready implementations, with an emphasis on reliability, evaluation, security, and maintainability.Ability to discern where AI can meaningfully enhance backend systems (e.g., classification, summarization, anomaly detection) as opposed to traditional algorithms.
Join Us in Shaping the Future of TravelTravel is an integral part of our lives, whether it's to reconnect with loved ones, embark on thrilling adventures, or navigate crucial business journeys. Unfortunately, the process of reaching our destinations can often be frustrating. Over 4 billion airline passengers currently depend on technology that has not evolved to meet the needs of today's connected travelers.At Duffel, we are on a mission to transform the travel industry. We are re-engineering the infrastructure that supports travel, making it simpler and more efficient. Our tools aim to eliminate the hassles of travel, enabling a seamless experience for all. As a graduate of Y Combinator S18 and supported by esteemed investors like Benchmark, Blossom, Index Ventures, and Kima Ventures, we are poised for significant growth.We are expanding our London team and seeking exceptional talent to join us on this exciting journey.The Role of AI at DuffelThe travel sector poses unique challenges for AI, as a single journey can encompass multiple airlines, hotels, payments, policies, and time zones. When issues arise, travelers require immediate solutions. We are developing a chat-based AI assistant to help users manage their trips booked through Duffel, allowing them to change flights, comprehend fare rules, recover from disruptions, and access receipts without lengthy calls or waits.As a Senior AI Engineer, you will be instrumental in building the foundational platform that supports these interactions, creating systems for orchestration, retrieval, memory, and evaluation that empower our agents to make reliable decisions based on real bookings, money, and policies.
Corgi is an insurance carrier designed for tech startups, using AI to make underwriting and operations more efficient. With $108 million in funding and full licensing, Corgi is expanding into the UK and EU. The core platform runs on Django and uses Stripe for payments, blending strong engineering with insurance expertise. Role overview This Senior Backend Engineer role is based in London. The position centers on building and deploying products, often independently and without a fixed roadmap. Engineers who have shipped live projects, whether through side work, weekend builds, or prior roles, are especially valued. Key responsibilities Independently design, build, and launch backend systems and features. Turn ideas into production-ready products within tight timelines. Work with a Django-based stack, integrating Stripe and AI-driven workflows. Adapt to new technical challenges as the company grows. What Corgi looks for Proven ability to build and ship impactful projects independently. Comfort working at a startup pace, delivering results in hours or days. Ability to work across the stack and solve a range of technical problems. Strong opinions paired with openness to feedback and new ideas. Focus on outcomes and results rather than titles or hierarchy. High energy, collaborative spirit, and humility. How work happens at Corgi Quick decision-making, prioritizing action over waiting for perfect solutions. Products and improvements ship regularly, not just on a set schedule. Iterative development is preferred over long review cycles. Momentum is maintained even outside of major launches. Transparency is standard; decisions are made openly. Internal competition is encouraged to raise standards for everyone. This is a hands-on position for engineers who want to build and make an impact. Behaviors that lead to removal Office politics, blame-shifting, or gossip. Taking feedback personally rather than constructively. Introducing unnecessary bureaucracy. Missing deadlines after making commitments. How to apply Send links to your GitHub, personal website, or live projects you have shipped. CVs are not required. Email applications to: sergio@corgi.com Evidence of shipped work is required. Location and compensation London-based role, with on-site or hybrid options. Salary range: £75,000 to £140,000, plus equity. Salary depends on demonstrated ability to ship, not job title.
Scale AI, Inc.
At Scale AI, we’re not just creating AI tools—we’re leading the charge into the next frontier of enterprise AI. As organizations strive to leverage the capabilities of Generative AI, Scale stands at the forefront, offering innovative solutions that revolutionize workflows, automate intricate processes, and enhance efficiency for some of the largest enterprises in the world. Our Scale Generative AI Platform (SGP) provides essential services and APIs that empower businesses to effortlessly integrate AI into their operations at a production scale. We are on the lookout for a talented Backend Engineer to play a pivotal role in bringing large-scale GenAI systems into production. In this capacity, you will be responsible for constructing the core infrastructure that drives AI products for major enterprises—designing scalable APIs, distributed data systems, and resilient deployment pipelines that ensure production-grade reliability and performance. This is a unique opportunity to be at the epicenter of the GenAI revolution, tackling challenging backend and infrastructure obstacles that enable AI to function effectively at enterprise scale. If you are enthusiastic about influencing the deployment and scaling of AI systems in real-world scenarios, we would love to hear from you. At Scale, we don't just keep up with AI advancements—we drive them. With profound expertise in data, infrastructure, and model deployment, we are distinctly positioned to tackle the most challenging issues in AI adoption. Join us in shaping the future of enterprise AI, where your contributions will have a direct impact on how businesses operate, innovate, and thrive in the Generative AI era.
Join Our Team as a Senior Product Engineer (AI)At Plain, we're revolutionizing customer support for the next generation of B2B enterprises. Our goal is to create the fastest and most powerful platform that enables businesses to transition from reactive support methods to building genuine relationships with their customers.Renowned companies like Cursor, Raycast, and Granola rely on Plain to centralize customer interactions, enhance team collaboration, and elevate workflows through advanced AI technology.The landscape of B2B customer support is evolving dramatically, with AI paving the way for innovative customer engagement strategies. Support has shifted from being a disconnected, slow process to a cohesive, company-wide initiative that spans channels like Slack, Discord, and beyond. The traditional methods just can't keep up anymore.This position is hybrid, requiring 3 days a week in our London office.Your RolePlain is in an extraordinary position, already powering support solutions for high-growth businesses with our incredibly fast and scalable platform. AI has been integral to our offering from day one, and now we’re committed to deepening its impact across all facets of modern customer support.We are on the lookout for a Senior Product Engineer with a passion for customer success to elevate our AI initiatives. In this role, you will develop the infrastructure necessary for rapid, secure, and confident delivery of AI features, taking ownership of challenges from inception to execution and playing a pivotal role in crafting a category-defining product.In this role, you will:Take full ownership of AI functionalities, including agents, assistants, insights, and beyond—from concept through to production.Design and implement backend services that support AI integrations and data pipelines.Create robust APIs and abstractions for internal AI applications.Enhance system scalability through caching, optimization, and processing patterns.Contribute to the evolution of our AI infrastructure, including architecture, evaluation, and iteration pipelines.Tackle complex challenges surrounding AI accuracy, reliability, and quality using rigorous quantitative methods.Represent our work externally through writing, speaking engagements, and connections with the broader AI community.This Role is Ideal for You If You...Are an experienced backend engineer with a proven track record of shipping AI products in the era of OpenAI and Anthropic, particularly in text and data-intensive AI applications.Possess a deep understanding of AI technologies and their applications in real-world customer support scenarios.
Join Our Team!At Plum, we are revolutionizing how people save and invest. Our mission is to empower individuals to grow their wealth for life, whether they are saving for their first home or enjoying retirement. Since our inception in 2016, over 2 million users across 10 European countries have saved more than £2 billion with our innovative automation and AI technology. We've been recognized with awards from esteemed organizations like Deloitte and Finder, reflecting our commitment to excellence.We are a passionate team of over 200 Plumsters working collaboratively across Europe, and we are eager to welcome more talented individuals to help us achieve our vision.Your RoleAs a Senior Backend Engineer at Plum, you will play a crucial role in shaping our technology and product offerings. We seek engineers who are not only technically adept but also understand the importance of delivering outstanding products to our customers.
At Plain, we are revolutionizing customer support for the modern B2B landscape. Our aim is to develop the most rapid and powerful platform, enabling companies to transcend traditional reactive support and foster genuine customer relationships.Renowned companies such as Cursor, Raycast, and Granola trust Plain to consolidate their customer interactions, enhance team collaboration, and elevate their workflows through the integration of AI.The B2B customer support sector is experiencing a monumental transformation, with AI redefining customer engagement. Support is evolving from a siloed function to a collaborative effort across platforms like Slack, Discord, and other communication channels. The outdated methods of slow, manual, and fragmented processes are no longer viable.This position offers a hybrid work model, requiring 3 days a week in our London office.Key ResponsibilitiesWorking at Plain involves more than just managing tasks; it encompasses owning and addressing challenges comprehensively—from infrastructure decisions to feature design and user interface elements.In this role, you will:Influence Product Strategy: Contribute to the technical architecture and product roadmap, effectively balancing customer insights with long-term product sustainability.Deliver Features from Concept to Launch: Define, develop, and deploy product features that directly address customer needs. Teams include:Core Product Team: Manage all customer-facing channels (Slack, Discord, Email, etc.), core data models, and customer requests while balancing rapid execution with foundational integrity.Developer Infrastructure Team: Create the essential tools that empower every engineer at Plain to effectively deliver and maintain the product, with a focus on optimizing team speed and minimizing obstacles.Enhance Backend Architecture: Tackle some of our most intricate challenges, from data modeling to high-performance reporting, establishing standards for our development processes.Optimize Developer Experience: Ensure that Plain is not only user-friendly but also developer-friendly, from data pipelines to APIs.
Join Our Dynamic Team at XapienAt Xapien, we empower businesses to truly understand their connections with suppliers, investors, partners, and third parties. Our innovative approach merges speed, scale, and precision, utilizing advanced AI technology.Since our inception in 2018, we've evolved from a deep-tech startup to a key player in AI-driven due diligence and risk intelligence. The year 2024 marked a significant milestone, with the successful closure of a $10M Series A funding round and accolades in the Chartis RiskTech100® and Everest Group’s Leading 50™. Our expansion has led to a broader product range, new market entries, and an expanding customer base.Our Growth TrajectoryWe're witnessing accelerated demand across various industries, especially in wealth management, financial services, and supply chain onboarding, extending our reach beyond the UK to customers in the Middle East, Asia, and Oceania.Why Now is the Perfect Time to Join UsThis position is not just another role; it’s a chance to influence the future of the due diligence sector with a market-leading product that organizations worldwide trust. Whether your expertise lies in marketing, communications, sales, or finance, your contributions will be vital in driving growth, enhancing credibility, and connecting our product with a swiftly changing market.As we scale rapidly, with an increasing number of customers and product releases, we face larger regulatory and market challenges. The expectation for real-time insights in due diligence is higher than ever. Your role will go beyond routine tasks; you will be shaping strategy, refining processes, and positioning a brand that is redefining trust and transparency.If you're passionate about learning, innovating, and making a meaningful impact, now is the time to join Xapien.The RoleWe are seeking a skilled Senior Backend Engineer to take on a pivotal technical leadership role within our engineering team. You will tackle our most complex technical challenges, take ownership of critical components within our platform’s architecture, and help guide our technical direction to ensure we continue to stay ahead in the industry.
ThreatAware
About the RoleWe are seeking a talented Senior Backend Engineer to join our Research & Development team at ThreatAware. In this pivotal role, you will collaborate directly with our CTO to develop the next generation of our platform. You will empower security teams to create AI-driven workflows, automate critical decisions, and interact with their data in innovative ways. This position involves profound backend development tasks, including designing abstractions, prototyping agent-based patterns, and transforming visionary ideas into real-world systems. If you're passionate about pushing boundaries in AI and cybersecurity, this is the perfect opportunity for you.Why Choose ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, our platform can be deployed in under 30 minutes, delivering real-time visibility across complete IT estates. Industries such as finance, legal, energy, and healthcare rely on us to identify what is secured and what isn't.We are now embarking on a larger initiative. Building on six years of precise cyber asset data, we are integrating AI capabilities to offer security teams new avenues for data interrogation, workflow automation, and proactive risk management. You will play a central role in bringing this vision to life.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Design and develop the AI composition layer that drives the next chapter of ThreatAware.Architect backend systems that facilitate the dynamic integration of data sources, AI reasoning, and automated security actions.Create APIs, data models, and execution engines for complex, multi-step workflows, ensuring they are scalable, resilient, and observable.Prototype and validate agentic patterns, including multi-agent collaboration and hierarchical reasoning, utilizing LLMs.Ensure AI outputs are grounded in accurate cyber asset data by developing retrieval systems, validation checks, and confidence indicators.Incorporate security as a fundamental aspect of your work, focusing on authentication, authorization, audit logging, and data protection.What We Are Looking ForExtensive backend engineering experience in building large-scale, production systems with a strong emphasis on system design and architectural thinking.Proficient in Python, TypeScript, or similar languages, with a solid track record in designing APIs, databases, and event-driven systems.Hands-on experience with cloud infrastructure, preferably AWS, including serverless architectures, messaging, and containerized services.A strong interest in AI and LLMs, ideally with experience in integrating AI with backend systems or developing AI-native applications.
About the RoleWe are seeking a skilled Senior Backend Engineer to tackle some of the most challenging issues in cybersecurity. In this role, you will help build a cutting-edge platform that integrates over 150 security tools, supports enterprise clients at scale, and drives innovative AI capabilities. Working primarily with C#/.NET on AWS, you will collaborate closely with the Head of Engineering and a passionate team dedicated to excellence in their work. If you are an outstanding engineer eager to create meaningful impact, this opportunity is for you.Why Choose ThreatAware?At ThreatAware, we empower security teams by providing a comprehensive source of truth for all devices and tools within their organizations. With over 150 integrations and deployment in under 30 minutes, our platform offers real-time visibility across entire IT estates. Clients in finance, legal, energy, and healthcare trust us to safeguard their assets.We are now embarking on an ambitious project to enhance our existing six years of accurate cyber asset data by integrating AI capabilities. This will enable security teams to analyze their data, automate workflows, and proactively manage risks before they escalate. The platform you will contribute to is fundamental to this vision.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Contribute to the design and evolution of our core architecture, including the integration framework, APIs, data models, and scalable multi-tenant infrastructure.Develop backend services that support our AI features, creating APIs and data pipelines that provide real-time asset data to large language models.Enhance our integration platform connecting over 150 security tools by designing streamlined, reliable, and efficient integration patterns.Address complex engineering challenges such as event correlation, high-throughput data pipelines, and the development of secure, high-performance APIs.Mentor fellow engineers through code reviews, design discussions, and architectural strategies to elevate the team's overall quality.QualificationsProven expertise in C#/.NET development, with strong instincts in system design that uplift your colleagues.Experience with multi-tenant SaaS platforms on AWS or similar cloud infrastructures.Solid skills in API design and database architecture, always considering scalability, reliability, and maintainability.A keen interest in AI and LLMs, driven by a passion for developing backend solutions that leverage these technologies.A collaborative mindset with a commitment to team success.
At Elliptic, we are pioneering the development of AI-driven tools that empower compliance teams to swiftly and confidently investigate cryptocurrency transactions. Our Automation Forge team is at the forefront of this innovation, crafting backend systems and AI integrations that support Elliptic's copilot, enabling investigators to track fund flows, identify trends, and manage risk in real-time.We are seeking a dedicated Backend Software Engineer to join our team and contribute to the design and implementation of APIs, workflows, and services that facilitate these capabilities.Your Impact:As a Software Engineer within the Automation Forge team, you will play a key role in designing and delivering robust, scalable services that underpin Elliptic’s copilot and other AI-enhanced functionalities.Collaborating with product managers, frontend engineers, and your technical lead, you will transform complex blockchain data into intuitive, user-centric solutions that assist compliance teams in tracing fund flows, revealing intricate patterns, and responding to risks with agility and assurance.By working collaboratively across various disciplines, you will contribute to the development of impactful features while consistently enhancing the quality, reliability, and usability of our platform. Your efforts will be instrumental in advancing Elliptic’s mission to create safer, more transparent, and efficient cryptocurrency markets.Your Responsibilities:Design, develop, and maintain backend services and event-driven systems utilizing TypeScript and Node.js.Build APIs and workflows that seamlessly integrate AI and LLM frameworks to enhance Elliptic's copilot and other intelligent features.Optimize and query data models across both relational and NoSQL databases.Work alongside cross-functional teams to bring features from concept to production.Participate in technical design reviews, planning sessions, and code reviews to continually enhance system quality.Contribute to infrastructure and observability practices within the team, ensuring shared responsibility for the performance of services in production.Your Qualifications:3–6 years of backend engineering experience specifically with TypeScript / Node.js.Strong API design expertise — you have developed and maintained production APIs and understand how to interface with external systems.Proficiency in data modeling — comfortable designing, optimizing, and querying data across various databases.Excellent collaboration skills — able to work effectively with diverse teams and communicate technical concepts clearly.
At Spotify, we are on a mission to revolutionize the way creators and listeners engage with long-form storytelling through our Audiobooks initiative. Our objective is to create a seamless ecosystem for audiobook content, facilitating smooth transfers from publishers to listeners. This includes building the robust systems necessary for content ingestion, processing, and efficient delivery across our rapidly expanding global catalog. We are seeking a talented Senior Backend Engineer to join a dynamic and impactful team within the Audiobooks Pipeline sector. This team's primary responsibility is to design and scale systems that handle the ingestion, processing, and transformation of audiobook and eBook content, metadata, and royalties, ensuring that listeners receive the right content with utmost efficiency and quality. While this role encompasses full-stack responsibilities, the emphasis will be on backend and data-centric development. We are looking for an individual who thrives in uncertain environments, is passionate about learning, and is excited to tackle complex challenges across the tech stack.
Deducta
TL;DRDeducta is a rapidly expanding startup catering to some of the globe's most prestigious enterprises. With strong funding, we are committed to addressing today's most significant business challenges.We are seeking a Senior Backend Engineer who will play a pivotal role in the design, development, and upkeep of our core systems.In this role, your key responsibilities will include:Creating and sustaining high-performance, low-latency APIs for enterprise-level data processing systems.Delivering exceptional code promptly. Location: London, UK. Our office is situated near London Bridge, and we prioritize in-person collaboration. Compensation: The total compensation for this position begins at £150,000. Visa Sponsorship: We are willing to sponsor a visa for the ideal candidate to join our team. What is Deducta?Deducta is a leading data intelligence platform for global corporations. We provide unparalleled clarity into mission-critical data for some of the world's largest and most intricate organizations, starting with spend data.We are at the forefront of significant business transformations. Our partners leverage Deducta to achieve impactful results at remarkable speeds.What is the Role?We process vast datasets containing essential enterprise information from diverse sources and formats, structuring it effectively. Our system utilizes cutting-edge LLMs to tackle this challenge with unmatched precision and at previously unimaginable scales.As a Senior Backend Engineer, you will be responsible for designing, developing, and maintaining the foundational architecture of our platform as it expands.Your contributions will include:Designing, constructing, and maintaining data ingestion and processing engines capable of supporting mission-critical operations for the largest firms globally.Developing and sustaining ultra-fast, high-volume, and well-documented APIs to facilitate these systems.Driving business growth through a blend of creativity and experimentation to enhance our product, alongside proactive problem-solving for our clients.Working closely with both technical and non-technical team members to comprehend our customers' challenges and create solutions that address them.Success in this role means:Leading development initiatives from concept to production.Consistently driving enhancements and new features. Who will be the right fit?We are in search of a technically outstanding engineer who excels in a role that offers autonomy and ownership.You might be a great fit if you possess…Strong experience in object-oriented programming within cloud environments (e.g. AWS, GCP, or Azure), with .NET experience considered a plus.Familiarity with SOLID principles, domain-driven design, and Clean Architecture methodologies.A passion for...
Socure
Join the Future of Identity with Socure!At Socure, we are revolutionizing the identity verification landscape, establishing a trust infrastructure that safeguards the digital economy. Our mission is to verify 100% of legitimate identities in real-time, proactively preventing fraud before it occurs. Our work addresses complex challenges, impacting businesses, governments, and millions of individuals globally every day.We seek passionate individuals ready to take on significant responsibilities. If you thrive in a fast-paced environment, possess critical thinking skills, and approach challenges with an ownership mindset, you’ll fit right in. If predictability is what you seek, this might not be the role for you. However, if you're eager to help shape the future of identity with a team that holds itself to the highest standards, keep reading.As a Senior Backend Engineer, you will be a critical player in our product-focused teams, designing and building scalable systems that have a meaningful impact. You will engage directly with customers to enhance satisfaction and drive continuous improvements across our product offerings.In this role, you will lead the design and implementation of distributed systems, take ownership of essential non-functional requirements such as scalability, security, and reliability, and mentor fellow engineers while remaining actively involved in development. Your expertise will be vital throughout the entire software development lifecycle, from architecture and implementation to testing, documentation, and production support.This position is ideal for backend engineers who are passionate about building robust systems using Golang, excel in a product-driven environment, and want to influence technology at scale.Key Responsibilities:Design, develop, test, and debug scalable backend services within distributed systems.Deliver on key non-functional requirements, including scalability, availability, performance, and security.Develop and maintain comprehensive tests (unit, integration, functional) to ensure high coverage and reliability.Contribute to and produce technical documentation for knowledge sharing and collaboration.Break down complex projects into actionable tasks and guide teams in their execution.
Join Aircall, a revolutionary unicorn in the AI-powered customer communications sphere, trusted by over 22,000 companies globally to enhance revenue, expedite issue resolution, and empower customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is driven by a straightforward principle: to enable teams to work smarter, not harder. Our AI Voice Agent automates routine calls, while AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time insights, allowing individuals to excel in their roles. This synergy results in increased revenue, quicker resolutions, and scalable teams.Headquartered in Paris, with a solid presence in North America anchored in Seattle, Aircall also has teams in vibrant cities such as Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and we are rapidly scaling, supported by top-tier investors and continuous AI advancements across multiple product lines.At Aircall, you'll become part of a dynamic company. We are ambitious, focused on product development, and execution-oriented, with a clear impact, swift decision-making, and genuine growth opportunities.Our Work Culture at Aircall: We prioritize customer satisfaction, leverage data for decision-making, and are dedicated to delivering significant outcomes. We cherish ownership, continuous improvement, and thoughtful agility. If you thrive in a collaborative, fast-paced environment where trust and impact are essential, you will thrive here.Position Overview:As a Senior Backend Software Engineer, you will take charge of designing, developing, deploying, and maintaining essential features that enhance customer value on our voice platform.You will be expected to advocate for best practices, mentor team members, and contribute to the broader Engineering community as part of your daily responsibilities.Quality, excellence, and agility are at the core of our delivery process, and you will play a pivotal role in elevating these standards.Utilizing a diverse array of backend technologies tailored to specific needs, all hosted on AWS, we create resilient services that deliver added value on top of voice while fully integrating with our customers' critical business tools (CRM, Helpdesk, E-Commerce, etc.).
Join Contentful as a Senior Backend Engineer specializing in our cutting-edge AI Platform. In this pivotal role, you will architect and develop robust backend systems that support our innovative AI solutions. Collaborate with a dynamic team of engineers and data scientists to design scalable APIs and enhance our platform's capabilities.
Apollo Research
Application Deadline: We are actively interviewing candidates and aim to fill this role promptly upon finding the ideal match. JOIN OUR TEAMBecome a vital part of our innovative AGI safety product team, where your contributions will transform intricate AI research into actionable tools that mitigate AI risks. As a Backend Engineer, you will collaborate closely with our CEO (who also serves as Head of Product), product engineers, and members of the Evals team to develop products that ensure AI agent safety at scale. Our current focus is on creating tools that monitor AI coding agents for potential safety and security failures.In this small, dynamic team, you will have a significant opportunity to shape both the technology and the team culture while quickly taking on responsibilities. This role is perfect for you if you are passionate about building solutions that enhance the safety of AI agents and thrive in a fast-paced environment, enjoying close collaboration with researchers.KEY RESPONSIBILITIESInfrastructure & Architecture- Design and implement scalable backend systems capable of real-time processing and analysis of substantial AI agent logs.- Build and maintain efficient data processing pipelines to extract, transform, and store agent trajectory data.- Architect database schemas and data models optimized for high-throughput writes and complex analytical queries.- Ensure system reliability by implementing robust error handling, retry logic, and graceful degradation strategies.- Monitor system performance and optimize bottlenecks to guarantee sub-second latency for critical monitoring operations.API Development- Develop secure, well-documented RESTful APIs that facilitate customer integration of our monitoring products into their workflows.- Implement authentication, authorization, and rate limiting measures to protect customer data and ensure efficient resource usage.- Build webhook systems and real-time notification services to alert customers about critical safety events.- Design user-friendly API interfaces that cater to developers while remaining adaptable to various customer needs.
Spotify Ltd.
Join Spotify as a Senior Backend Engineer - Subscriptions and play a pivotal role in enhancing our subscription services.In this position, you will collaborate with cross-functional teams to design and implement scalable backend systems, ensuring seamless integration and exceptional user experiences.
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