Backend Software Engineer II

Join our dynamic engineering team at Pinterest, where creativity meets technology! As a Software Engineer I focusing on backend development, you will play a pivotal role in enhancing our platform's capabilities and ensuring a seamless experience for our millions of users. Collaborate with cross-functional teams to design, implement, and optimize backend services that power some of the most innovative features on Pinterest.

About AnthropicAt Anthropic, our mission is to design AI systems that are reliable, interpretable, and steerable. We aim to ensure that AI technology is safe and advantageous for both our users and society as a whole. Our rapidly expanding team consists of dedicated researchers, engineers, policy experts, and business leaders collaborating to create beneficial AI systems.About the Role:We are in search of seasoned, product-oriented Software Engineers to take ownership of the backend systems that enhance user experiences across our API, Claude Code, and Claude.ai. In this role, you will independently define complex, multi-month projects within ambiguous problem domains and guide your peers in making technical and product-related decisions. You will align with product management, engineering teams, and research to identify capability gaps and translate cutting-edge model advancements into deployable products. Your architectural decisions will significantly impact the reliability and scalability of systems serving hundreds of thousands of global users, including internal teams, while you remain actively engaged with the code and our models.We are currently hiring for multiple teams. Team assignments will be made post-interview, considering your preferences and experience alongside organizational requirements. This flexible approach allows us to pair talented engineers with backend product initiatives where they can make the most significant impact and experience the most growth:API Core: You will develop and enhance the foundation of the Claude API—systems that deliver Claude's intelligence to developers ranging from startups to large enterprises. You will manage the performance, reliability, and efficiency of our core serving path, ensuring users derive maximum speed and value from our models. Collaboration with inference and safeguards will be key to optimizing the entire stack.API Capabilities: You will empower developers by integrating frontier model capabilities into the Claude API, overseeing core features such as vision, tool usage, and computer interaction. Your responsibilities will include launching new models and delivering the building blocks that enhance Claude's capabilities with each release, working directly with research and inference to productionize future advancements.API Knowledge: Your focus will be on transforming Claude into a true knowledge worker by ensuring the model has timely access to the right information. You will facilitate secure data access for developers, enabling Claude to automatically process and retrieve relevant data as needed.

Aerovy is hiring a Lead Software Engineer focused on backend development at its Seattle Engineering HQ. This position guides a team in building and maintaining scalable backend systems. The work centers on strengthening software architecture and supporting fast, reliable responses to front-end requests. Role overview This lead engineer role involves close collaboration with cross-functional teams. The position shapes the design and delivery of new features and oversees the technical direction for backend projects. What you will do Direct and mentor a backend engineering team Design, develop, and maintain scalable backend solutions Work with other teams to define and deliver new features Focus on high performance and quality throughout the software lifecycle

Join Opendoor as a Backend Software Engineer focused on Pricing, where you will play a pivotal role in shaping the future of real estate transactions. You will leverage your technical expertise to develop and optimize backend systems that drive pricing strategies, ensuring our platform delivers accurate and timely information to our users.

Join Hive, a pioneering leader in cloud-based AI solutions, as a Senior Backend Software Engineer. We are on a mission to empower developers across the globe with cutting-edge AI technology. In this role, you will play a crucial part in launching innovative products and features, tackling the challenges of scalability, and creating robust web-based APIs from scratch. We seek candidates who are not only technically skilled but also passionate about building exceptional products and crafting clean, maintainable code. If you're ready to contribute to transformative AI solutions, we want to hear from you!

About HiveHive is at the forefront of cloud-based AI technology, designed to enhance the understanding, searchability, and generation of content. We are proud to partner with some of the most innovative and renowned organizations worldwide. Our platform empowers developers through a suite of pre-trained AI models, which handle billions of API requests every month. Additionally, Hive provides ready-to-use software applications powered by our proprietary AI models and datasets, enabling transformative solutions across various industries, including content moderation, brand protection, sponsorship analysis, and context-driven ad targeting.With over $120M raised from top investors like General Catalyst, 8VC, Glynn Capital, Bain & Company, and Visa Ventures, Hive boasts a diverse workforce of over 250 employees across our offices in San Francisco, Seattle, and Delhi. We invite you to be part of the AI revolution!About the RoleTo realize our ambitious vision, we are expanding our team of exceptional engineers. We are seeking innovative developers who are eager to launch new products and features, can operate independently, and are enthusiastic about exploring new technologies. The ideal candidate possesses a strong background in building core services and web-based APIs from scratch, values the intersection of product and technology, and is skilled in writing clean, maintainable code.

Join our innovative team at Plaid as a Senior Backend Software Engineer. In this role, you will be responsible for developing scalable backend systems that empower our users and partners. Your expertise in backend development will help us enhance our platform's capabilities and deliver exceptional user experiences.

Join Aircall as a Senior Backend Software Engineer and play a pivotal role in shaping our backend systems. You will be responsible for designing and implementing scalable, reliable, and high-performance software solutions. Collaborate with cross-functional teams to develop innovative solutions that meet our customers' needs.

About BRINC:At BRINC, we are revolutionizing public safety through an innovative suite of life-saving technologies. Our journey began with the creation of drones and ruggedized throw phones, specifically designed to navigate hazardous environments and facilitate communication for de-escalating critical situations. Today, we have expanded our focus to include the development and deployment of advanced 911 response networks, where drones are dispatched to emergency calls to provide real-time visual data, greatly enhancing safety and enabling effective responses. Our state-of-the-art solutions are currently utilized by over 600 public safety agencies across the United States, and we have successfully raised over $150 million from esteemed investors such as Index Ventures, Motorola Solutions, Sam Altman, Dylan Field, Mike Volpe, Alexandr Wang, among others. At BRINC, we are dedicated to attracting the finest talent globally to support our mission of empowering first responders to save lives.About this Role:We are on the lookout for a Senior or Principal Backend Software Engineer who will take charge of critical components of our software systems, actively contributing to the design, development, and optimization of our technology stack. In this role, you will collaborate closely with cross-functional teams, utilizing your technical expertise to deliver high-quality and scalable software solutions. This is a thrilling opportunity to be part of a dynamic startup environment and to make a substantial impact on the company's trajectory.Key Responsibilities:Drive the development of a scalable backend platform that underpins our global real-time services.Ensure that our platform remains secure, reliable, and high-performing.Construct and enhance our platform infrastructure and development tools.Rapidly prototype new projects and ideas to meet the needs of our customers and internal stakeholders.Collaborate with cross-functional hardware and autonomy teams to address challenges such as streaming and presenting live drone data in formats accessible to non-technical users.Qualifications:Bachelor's, Master's, or PhD in Computer Science or a related field, with 5+ years of experience in delivering high-quality code and developing robust infrastructure. Note - we are open to candidates for mid-career, senior, and principal positions.Proven experience in building backend platforms, from infrastructure to API level (bonus points for experience in real-time data platforms, scalable microservice architectures, and handling security and encryption requirements).Familiarity with modern cloud infrastructure (AWS, GCP, Azure, etc.) is highly desirable.

About HiveHive stands at the forefront of cloud-based AI innovation, delivering unparalleled solutions that facilitate understanding, searching, and generating content. Trusted by some of the most prominent and pioneering organizations globally, we empower developers with an extensive suite of premium, pre-trained AI models that handle billions of API requests monthly. Our turnkey software applications, driven by proprietary AI models and datasets, unlock transformative use cases across various industries. Hive's offerings are revolutionizing content moderation, brand safety, sponsorship analytics, contextual advertising, and more.Having successfully raised over $120 million from esteemed investors such as General Catalyst, 8VC, Glynn Capital, Bain & Company, and Visa Ventures, we are a growing family of over 250 dedicated professionals across our offices in San Francisco, Seattle, and Delhi. If you are passionate about shaping the future of AI, we invite you to join us!About the RoleTo fulfill our ambitious vision, we are expanding our team of exceptional engineers. We seek talented developers who are eager to launch innovative products and features into production, who thrive in autonomous environments, and who embrace the challenges that come with scaling solutions. Our ideal candidate will have a proven track record in building core services and web-based APIs from scratch, demonstrating a strong commitment to both the product’s functionality and the underlying technology. You should possess the ability to structure and write clean, maintainable code, ensuring robust software development practices.

Join Duolingo as a Senior Backend Software Engineer and play a pivotal role in building scalable and innovative backend systems that enhance the learning experience for millions of users worldwide. Collaborate with cross-functional teams to design, develop, and maintain high-performance APIs and services that are critical to our platform's success.

Since our inception, we have revolutionized the approach to small-dollar loans, having provided over $1 billion in funding to more than 1.5 million customers, and issued over 4 million loans that have saved our clients more than $650 million.At Possible, we are developing an innovative consumer finance company that prioritizes helping our customers avoid debt rather than profiting from it. As a Public Benefit Corporation, our mission is to facilitate economic mobility in communities through affordable credit products designed to foster financial health for generations. Join the team that is turning our vision into reality.About the RoleWe are in search of a skilled Senior Software Engineer to bolster our engineering team. In this role, you will be responsible for designing, developing, and maintaining high-performance, reliable, and scalable services utilizing Java, the Spring Framework, gRPC, and GraphQL. As a senior member of the team, you will offer technical leadership, mentor junior engineers, and inspire innovation in your domain.

Senior Backend Software EngineerJoin Read AI's innovative Backend team as a Senior Software Engineer. In this pivotal role, you will be instrumental in designing, developing, and optimizing robust backend systems that fuel our AI-driven productivity platform. Engage in a dynamic, collaborative setting where you’ll deploy code weekly and make a substantial impact on millions of users.Complete your application with a Provn skills assessment.

About Us:At Read AI, we are a rapidly growing, venture-backed startup dedicated to leveraging artificial intelligence to transform the way individuals engage with information. Our innovative product empowers users to efficiently summarize, enhance, and consolidate data from meetings, chats, and emails, ultimately saving time and enhancing productivity. With over a million active monthly users, we are on a continuous growth trajectory and are seeking passionate individuals who share our commitment to innovation and making a meaningful impact.We prioritize creating a diverse and inclusive workplace where every voice is heard and valued. We warmly welcome candidates from all backgrounds, abilities, and experiences to apply.The Role:As a Backend Software Engineer for Enterprise Applications at Read AI, you will be instrumental in developing and maintaining the backend services that drive our enterprise product offerings. You will work closely with cross-functional teams to design, implement, and deploy scalable and dependable backend solutions tailored to meet the diverse needs of our enterprise clients.

P-940 (Position Location is open to both our Seattle & Bellevue offices.) At Databricks, we are passionate about empowering data teams to tackle some of the world's most challenging problems, from detecting security threats to developing life-saving cancer treatments. We achieve this by creating and managing the leading data and AI infrastructure platform, allowing our customers to concentrate on the critical challenges central to their missions. Founded in 2013 by the original creators of Apache Spark, Databricks has rapidly transformed from a small office in Berkeley, California, into a global entity with over 1,000 employees. We are trusted by thousands of organizations, ranging from startups to Fortune 100 companies, with their mission-critical workloads, establishing us as one of the fastest-growing SaaS companies worldwide. Our engineering teams are dedicated to building highly technical products that address significant real-world needs. We continuously push the boundaries of data and AI technology while maintaining the resilience, security, and scalability necessary for our customers' success on our platform. We operate one of the largest software platforms, managing millions of virtual machines, generating terabytes of logs, and processing exabytes of data daily. At this scale, we frequently encounter faults in cloud hardware, networks, and operating systems, and our software must effectively shield our customers from such issues. As a Backend Software Engineer, you will collaborate closely with your team and product management to prioritize, design, implement, test, and maintain microservices for the Databricks platform and products. Responsibilities include writing software in Scala/Java, building data pipelines (Apache Spark, Apache Kafka), integrating with third-party applications, and interacting with cloud APIs (AWS, Azure, CloudFormation, Terraform). Potential teams you may join include: Data Science and Machine Learning Infrastructure: Develop services and infrastructure at the intersection of machine learning and distributed systems, empowering our flagship collaborative workspace, notebooks, IDE integrations, and project management tools. Our technology also facilitates machine learning at scale through tools for environment management, distributed training, and managing the ML lifecycle via MLflow. Compute Fabric: Create the resource management infrastructure that supports all big data and machine learning workloads on the Databricks platform, ensuring robustness, flexibility, and security.

About Us:Read AI is at the forefront of productivity-driven AI, dedicated to empowering individuals and organizations to enhance their workflows across meetings, messages, and emails. Our innovative solutions seamlessly integrate with platforms like Microsoft Teams, Google Meet, Zoom, Slack, Hubspot, and Salesforce, transforming how teams collaborate and connect by offering an AI copilot wherever they are.Recently, we successfully completed a $50 million Series B funding round led by Smash Capital, with ongoing support from our valued investors Madrona and Goodwater Capital. With a total investment of $81 million secured just six months after our Series A, we are poised for rapid growth. If you thrive on making a significant impact through early and frequent deliveries, we invite you to be part of our expanding team!The Role:As a Backend Software Engineer at Read AI, your expertise will play a crucial role in the functionality, scalability, and reliability of our offerings. You will be part of a team that manages the service layer, encompassing authentication/authorization, account management, third-party integrations, data processing orchestration, database management, and data APIs.Responsibilities:Work closely with cross-functional teams to design and implement scalable and reliable backend services and APIs that support our platform.Take full ownership of key system components from the initial concept through deployment and ongoing maintenance.Adhere to quality assurance practices, including unit and integration testing.Implement robust authentication and authorization methods to safeguard data security and privacy.Enhance data processing pipelines and storage solutions for optimal performance.Seamlessly integrate external services and data sources into our platform.Monitor, troubleshoot, and resolve infrastructure and operational issues to maximize uptime and reliability.Continuously assess and adopt best practices, tools, and technologies to improve the scalability, reliability, and maintainability of our systems.Requirements:Bachelor's degree or higher in Computer Science/Engineering, or a minimum of 3 years of relevant industry experience.Demonstrated proficiency in backend development with one or more programming languages such as Python, Java, or similar.

About Read AI:At Read AI, we are transforming the way teams collaborate by infusing intelligence into every conversation. Our innovative platform enhances productivity across meetings, messages, and emails, allowing work to be accomplished more efficiently and with enhanced focus. We integrate seamlessly with popular tools such as Zoom, Microsoft Teams, Google Meet, Slack, and others, ensuring teams remain aligned and can progress, regardless of their physical location.With $81 million in backing from Smash Capital, Madrona, and Goodwater Capital, Read AI is on an exciting growth trajectory. If you are passionate about shaping the future of AI-driven collaboration and want to make a significant impact at a product-centric startup, we would love to connect with you.The Role:We are looking for a Staff Software Engineer to join our Core Services team. In this pivotal technical leadership role, you will be recognized as an authority throughout the organization. You will not only manage systems but will take ownership of the technical integrity of platforms that span various departments, ensuring our infrastructure is scalable, resilient, and innovative. Your contributions will significantly influence our engineering culture and the long-term success of the business.Responsibilities:Design, develop, and maintain robust backend services and APIs, primarily utilizing Python (FastAPI), SQLAlchemy, and AWS infrastructure.Create and implement features for data ingestion, third-party integrations (e.g., Slack, HubSpot, Notion), authentication/authorization, and enterprise-level security and compliance.Oversee the complete software development lifecycle: requirements gathering, design, implementation, testing, deployment, and monitoring.Work in close collaboration with product managers, front-end engineers, and data scientists to deliver cutting-edge solutions.Foster technical excellence through code reviews, mentorship, and adherence to best practices in software engineering.Participate in on-call rotations and contribute to the operational excellence, reliability, and observability of backend systems.Continuously enhance system performance, scalability, and reliability to accommodate rapid user and data growth.Promote a culture of innovation, ownership, and customer-centricity.

JOIN DURANTA: A PIONEER IN GEOSPATIAL ANALYSISAt Duranta, we are dedicated to cultivating a more beautiful world through advanced geospatial data analytics. Our innovative platform empowers contractors to design, install, and maintain stunning outdoor spaces via seamless workflows.We are on the lookout for a Senior Backend Engineer to become a vital part of our dynamic team. In this role, you will lead the backend development for both our web application and mobile applications. Your focus will be on creating an optimized system where performance is paramount, ensuring a flawless user experience where every millisecond counts.

Integrate develops program management software for advanced machinery and systems, with a focus on organizations in deep tech fields such as aerospace, autonomous vehicles, and robotics. The team is based in Seattle and works to improve collaboration and streamline workflows for companies tackling complex hardware projects. Current tools often fall short when it comes to the pace and complexity of hardware development in these industries. Integrate addresses this gap by building solutions that help teams and partners communicate more effectively, allowing innovation to move faster and with fewer obstacles. Role overview The Backend Engineer will play a key role in building and shaping the core infrastructure behind Integrate's platform. This position involves more than maintenance, engineers here design new systems and solve technical challenges that matter. The team values those who enjoy tackling problems like distributed system optimization, scaling data federation, and designing for a growing customer base. Collaboration is central. Expect to work closely with other engineers who move quickly and make considered technical decisions. Experience with systems that manage significant consumer or commercial traffic, such as cloud migrations, microservices, distributed data pipelines, or event-driven architectures, is especially relevant. What you will do Design and improve distributed backend systems that process high-throughput, real-time data with complex dependencies Own performance profiling and debugging for Go and Rust services, identifying and resolving bottlenecks Contribute to data federation architecture, including S3 integration, graduation pipelines, and downstream data services Develop and refine gRPC service interfaces and REST/JSON APIs for both internal and external users Work with SQL and NoSQL databases, focusing on schema design, query optimization, and durability strategies Collaborate on infrastructure decisions with platform engineers and technical leads Monitor and troubleshoot production systems, participate in on-call rotations, root cause analysis, and incident response Tech stack The backend is primarily written in Go, with Python supporting tooling and data workflows. The platform uses gRPC, REST/JSON, GraphQL, PostgreSQL, NoSQL databases, and Kubernetes for orchestration. Infrastructure is managed with Terraform. Location This Backend Engineer position is based in Seattle, WA.