Backend Software Developer - Web3

Overview: We are on the lookout for talented Backend Product Engineers to join our team and shape the future of artificial intelligence. You will engage with our entire technology stack to develop features that will empower the next generation of creators and innovators.Why Join Lovable?At Lovable, we empower individuals to create software with simple, plain English. From solo entrepreneurs to Fortune 100 companies, millions have utilized Lovable to metamorphose raw ideas into tangible products swiftly. We are pioneering a revolutionary shift in software development, offering you a unique chance to redefine the digital landscape. Over 2 million users across 200+ countries leverage Lovable to launch businesses, tackle complex challenges, and realize their aspirations. And this is just the beginning.Our small, exceptionally skilled team is building a transformative company headquartered in Stockholm. We prioritize ownership, speed, and collaborative, low-ego teamwork. We are searching for individuals who are passionate, willing to challenge norms, and eager to create something impactful.What We Seek5+ years of experience in designing, building, and scaling backend systems for production-level productsProficient in Go, Rust, or other similar backend programming languages, with strong API design capabilitiesThorough understanding of distributed systems, scalability, reliability, and performance trade-offsDemonstrated experience in integrating with frontend and machine learning systems to deliver product featuresPossess strong product instincts, with the ability to balance rapid delivery with long-term sustainabilityYour ResponsibilitiesIn brief: Develop and empower the core of Lovable products, ensuring they are swift, reliable, and capable of supporting millions of users.Design, implement, and maintain backend services, APIs, and infrastructure componentsTake complete ownership of backend systems: architecture, implementation, deployment, monitoring, and iterationWork closely with frontend, machine learning, and product teams to turn ideas into robust, scalable featuresContribute to shaping our backend architecture, engineering culture, and technical strategyOur Technology StackWe utilize tools that both humans and AI appreciate:Frontend:...

Join Us at LegoraAt Legora, we are revolutionizing the legal industry by collaborating closely with legal professionals to create innovative solutions. Our AI-driven workspace not only enhances the speed of legal tasks but also empowers users to ask insightful questions and unlock valuable insights. Each day, we strive to push the limits of legal technology, transforming intricate processes into streamlined, efficient workflows. Our trusted partnerships with top global firms like Cleary Gottlieb, Goodwin, Bird & Bird, and Linklaters across 40 countries reflect our commitment to excellence.Joining Legora means becoming part of a team that believes in excellence and collaboration. If you are passionate about building innovative solutions from the ground up in a fast-paced environment, we invite you to be a part of this exciting journey.The OpportunityAs a Senior Backend Engineer, you will play a crucial role in designing, developing, and delivering outstanding products that assist legal professionals worldwide in their daily operations. You will have the autonomy to work across the entire technology stack and take full ownership of your contributions.This position is based in our Stockholm headquarters and requires in-office attendance five days a week, as we believe that collaboration in person yields the best results.Your ResponsibilitiesDesign and implement new features for our web platform.Take charge of our codebase, ensuring high-quality code, security, and rapid development cycles.Utilize a range of technologies including Node.js, Postgres, Elasticsearch, AWS, Azure, and Kubernetes.Conduct code reviews and mentor junior engineers to foster team growth and improvement.Promote continuous improvement initiatives and challenge the status quo within the team.Are you ready to shape the future of legal technology with us?

Role Overview evolution is hiring a Senior Backend Engineer in Stockholm. This role focuses on designing and implementing backend systems that support the company's products. Collaboration with teams across disciplines is part of the daily work, with an emphasis on building applications that perform reliably at scale.

About SanaSana is an innovative AI laboratory dedicated to creating superintelligence solutions for the workplace. We believe that organizations can achieve their goals more efficiently when teams have seamless access to knowledge, can automate repetitive tasks, and have the ability to learn anything through agentic AI. As a subsidiary of Workday, our mission is to develop AI that enhances human capabilities rather than replacing them.Our vision is realized through two flagship products: Sana Agents and Sana Learn. Sana Agents provide a streamlined interface to access all company applications, knowledge bases, and data, empowering AI agents to perform meaningful work and enabling teams to process and act on information at an unprecedented scale. Sana Learn is an AI-driven learning platform that fuses the ease of modern learning environments with intelligent features such as an AI tutor, automated content creation, and interactive applications, transforming knowledge into actionable insights.We are a team of highly skilled engineers and designers from top-tier companies like Google, Spotify, Apple, and Databricks, all driven by a passion for technical excellence and rapid innovation. Our tools already support over a million users to enhance their learning and work efficiency across hundreds of leading enterprises, and we are just getting started.About the RoleAs a Backend Engineer, you will be instrumental in building and enhancing the core services that power our agents and product features, focusing on enterprise-scale workloads, performance optimization, and sustainable architecture. You will lead the architecture and system design to ensure our platform can accommodate high data volumes, diverse entities, and meet the demands of enterprise clients.Key ResponsibilitiesDesign and decompose services and APIs for scalability and clarity.Develop eventing and queue systems for reliable, high-throughput data flows.Oversee schema evolution, migrations, query/index optimization, and caching strategies.Establish and enforce consistency models and multi-region readiness.Optimize for performance budgets and privacy/tenant isolation.Work hands-on with TypeScript/Node, Postgres, and distributed systems.Success MetricsCore services are dependable, scalable, and easily adaptable.Potential risks are identified and mitigated proactively.APIs are clear, well-documented, and facilitate seamless product experiences.

airapps is looking for a Backend Engineer to help build and support the server-side systems behind our products. This position is based in Stockholm and involves working closely with other teams to deliver new features and maintain reliable backend services. Role overview This role centers on developing and maintaining backend applications that support our solutions. The work involves both creating new features and ensuring existing systems remain stable and scalable. Collaboration Backend Engineers at airapps work with colleagues across different functions. Expect to partner with product, design, and frontend teams to define requirements and deliver updates that meet user needs. What you will do Develop and maintain server-side applications Work with others to design and implement new product features Focus on code quality and system scalability

Join Our Team at SanaSana is an innovative AI laboratory dedicated to creating superintelligent solutions for enhancing workplace productivity. We believe that organizations can achieve their goals more efficiently when teams access knowledge seamlessly, automate mundane tasks, and leverage the power of agentic AI for continuous learning. As a proud member of Workday, we are on a mission to develop AI that complements human capabilities rather than replacing them.Our vision is brought to life through our two flagship products. Sana Agents streamline access to your organization’s applications, knowledge, and data, allowing AI agents to perform meaningful work and enabling teams to process and act on information at an unparalleled scale. Sana Learn serves as an AI-driven learning platform, blending the ease of a modern educational tool with intelligent features like AI tutoring, automated content creation, and interactive applications, ensuring knowledge is not only accessible but also actionable.Our team is composed of highly skilled engineers and designers from top-tier companies such as Google, Spotify, Apple, and Databricks, all driven by a shared commitment to technical excellence and rapid iteration. Our tools currently empower over a million users to enhance their learning and work processes across hundreds of leading enterprises, and we are just getting started.About the RoleYou will play a pivotal role in developing and optimizing the core backend systems that support Sana’s Learn platform and search infrastructure. Your mission will be to redesign and scale these systems to efficiently handle enterprise-level workloads, eliminate bottlenecks, and evolve our architecture to meet the demands of the AI era.ResponsibilitiesTransform existing components to accommodate enterprise-scale workloads.Identify and address bottlenecks in storage, query performance, APIs, and data models.Lead the transition from outdated systems to sustainable, modern solutions.Enhance the reliability and efficiency of APIs.

Supernormal develops AI-powered tools designed to make work simpler and more productive. The team prioritizes practical technology that streamlines workflows and encourages collaboration, aiming to help teams achieve strong results without unnecessary complexity. Role overview The Backend Software Engineer will have a key role in shaping the AI backend at Supernormal. The position involves leading technical projects from start to finish, guiding architectural decisions, and mentoring other engineers. Reporting to the Head of Engineering, this engineer will collaborate closely with colleagues across engineering, product, and design teams. This role suits someone who enjoys taking ownership, influencing core backend systems, and maintaining quality throughout the stack. The work combines hands-on engineering with technical leadership. What you will do Design, build, and maintain scalable backend services and APIs for Supernormal’s main product. Take responsibility for backend features from technical planning and implementation to testing and monitoring in production. Work with frontend engineers and product teams to define and document API contracts. Troubleshoot and resolve performance, reliability, and scaling issues. Participate in code reviews and help set strong engineering practices for a high-quality codebase. Contribute to infrastructure decisions, including cloud architecture, deployment pipelines, observability, and on-call processes. Requirements Minimum 6 years of professional experience in backend software engineering, with strong knowledge of distributed systems and API design. Proficiency with large codebases in Rust, TypeScript, and Ruby. Experience building and running production systems at scale, with a sense of ownership for shipped applications. Solid understanding of cloud infrastructure (AWS, GCP, or Azure), containerization, and CI/CD workflows. Comfortable working in a small, adaptable team with shifting priorities and broad responsibilities. Clear communication skills and the ability to collaborate across disciplines. Proactive and action-oriented, with a preference for simplicity and iteration over complexity. Preferred qualifications Experience with real-time data processing, streaming architectures such as Kafka or Pub/Sub, or WebSockets. Familiarity with speech-to-text APIs like Deepgram. Location This position is based in Stockholm, Stockholm County, Sweden.

Are you eager to tackle exciting challenges in a dynamic, high-transaction environment? We are on the lookout for an innovative and proactive Backend Software Engineer to join our team. If you have a passion for creating exceptional products and thrive on collaboration, we want to hear from you!The RoleJoin our Player, Rewards & Gamification Product Development team in Stockholm! At Betsson Group, we focus on ensuring customer loyalty through an outstanding customer experience that extends beyond gameplay, featuring tournaments, dynamic personalized campaigns, and much more.As part of our journey towards containerization, you'll play a key role in enhancing the scalability and quality of our systems while adapting to new requirements and working on exciting new features.What You’ll DoDesign and develop distributed backend services using .NET and event-driven architecture.Collaborate with product and commercial teams to transform engagement ideas into scalable, maintainable, and user-friendly solutions.Optimize our microservice ecosystem for performance, reliability, and observability.Advance our containerization and cloud migration strategy.Engage in architectural discussions and contribute to shaping technical decisions.For senior engineers: Lead architectural decisions and proactively identify areas for improvement.Write maintainable, well-tested code and conduct thorough code reviews.Participate in incident resolution and share in the team’s on-call rotation.Maintain comprehensive technical documentation, including ADRs, runbooks, and guidelines.Develop and share your domain expertise within the team.

TL;DR - We are in search of talented Fullstack Product Engineers to join us in shaping the future of AI. You will play a crucial role in developing features across our entire technology stack, empowering the next generation of creators and innovators.Why Join Lovable?At Lovable, we empower anyone to build software using plain English. From individual entrepreneurs to Fortune 100 companies, millions harness Lovable to convert raw ideas into tangible products swiftly. We are pioneering a transformative shift in software development, offering you a unique chance to revolutionize the digital landscape. Over 2 million users across 200+ countries are already leveraging Lovable to launch businesses, tackle complex challenges, and fulfill their aspirations. And this is just the beginning.Our small, exceptionally skilled team in Stockholm is dedicated to building a company that will define a generation. We prioritize ownership, speed, and collaborative teamwork. We seek individuals who are passionate, willing to challenge the status quo, and eager to contribute to something impactful.Your RoleYou will spearhead the development of a generational product, enhancing the core functionalities of Lovable’s offerings.Implement and oversee features across the full stack: frontend, backend, and infrastructure.Take ownership of systems from architecture to deployment and continuous improvement.Work collaboratively with machine learning, design, and product teams to create intuitive and groundbreaking user experiences.Lead the entire development lifecycle, from technical planning to production launch and iterative enhancements.Play a key role in influencing our technical direction, engineering culture, and product strategy.Our Technology StackWe utilize tools that are favored by both humans and AI:Frontend: React, TypeScript

About SanaSana is a pioneering AI lab dedicated to creating superintelligence for work. We believe that organizations can accelerate their missions when teams can seamlessly access knowledge, automate repetitive tasks, and engage in learning with the assistance of agentic AI. As a subsidiary of Workday, our commitment lies in developing AI that enhances human capabilities rather than replacing them.Our mission is actualized through two innovative products: Sana Agents, which provide an effortless way to access a company’s applications, knowledge, and data, empowering AI agents to perform real work at an unprecedented scale; and Sana Learn, an AI-driven learning hub that marries the simplicity of a modern learning platform with intelligent features such as an AI tutor, automated content generation, and interactive apps, making knowledge not just accessible but actionable.We are a team of exceptionally talented engineers and designers, hailing from industry giants like Google, Spotify, Apple, and Databricks, driven by a shared passion for technical excellence and rapid iteration. Our tools are already enhancing the productivity of over a million users across hundreds of leading enterprises - and we are just getting started.About the RoleIn this role, you will be responsible for delivering customer-facing value swiftly by collaborating in small teams - taking ownership from problem identification through to UX design, API development, and performance instrumentation. You will work end-to-end to launch features that not only delight users but also create significant impacts for Sana and our clientele.Key ResponsibilitiesTake ownership of features from design to deployment, including frontend (React/TypeScript), backend (Node/TypeScript), and database (Postgres).Integrate with agent and retrieval APIs to ensure seamless product experiences.Instrument products, conduct A/B testing, and iterate quickly in collaboration with design and product management teams.Make pragmatic trade-offs and thrive in the ambiguity of 0→1 product spaces.Work closely with stakeholders, users, and teammates to identify and solve the right challenges.Success CriteriaRapid feature deployment that delights users and drives measurable outcomes.End-to-end ownership is standard - problems are resolved rather than passed along.Product instrumentation and A/B testing guide every iteration.You will act as a force multiplier for your team, enhancing the capabilities of those around you.Embrace ambiguity as an opportunity for innovation.

Join our innovative team as a Legal Engineer - Product Specialist in the vibrant city of Stockholm. In this role, you will leverage your legal expertise and technical skills to develop and enhance our cutting-edge legal products. You will work closely with cross-functional teams to ensure our offerings meet the needs of our clients and stay ahead of the competition.

TL;DR Join our innovative Product Security team as a Full Stack Engineer, where you'll develop cutting-edge features that ensure Lovable remains the most secure AI-driven software creation platform in the world.Why Choose Lovable?At Lovable, we empower individuals and teams to develop software using plain English. From solo entrepreneurs to Fortune 100 companies, millions rely on Lovable to rapidly transform ideas into tangible products. We are at the forefront of a transformative era in software development, providing you with a unique chance to influence the digital landscape. With over 2 million users across more than 200 countries, our global reach is expansive, and we're only just beginning.Our small but elite team in Stockholm is dedicated to building a company that defines a generation. We value ownership, swift iteration, and collaborative humility. We are seeking passionate individuals who take pride in their work, challenge the status quo, and are committed to making a meaningful difference.Desired QualificationsA minimum of 5 years of full-stack engineering experience in delivering production-ready products swiftly.Expertise in React/TypeScript for frontend development and Golang for backend services, with a deep understanding that eliminates the need for reference checks.A strong commitment to quality, reflected in every pull request, design decision, and line of code.An innate understanding of product usability, capable of distilling complex functionalities into intuitive user experiences.Experience in developing security-related features such as audit trails, compliance tools, or security scanning interfaces is highly advantageous.Bonus: Familiarity with AI/LLM tools or a background involving intricate algorithmic or systems work.Your ResponsibilitiesDevelop comprehensive security features including audit flows, security scanner interfaces, cookie consent solutions, and compliance tools.Collaborate across the full stack as part of a close-knit team of 2-3 engineers.Take full ownership of your projects, from initial commit to deployment.Uphold and elevate coding standards and quality within the team.Shape technical direction and product strategy through informed opinions.Our Technology StackFrontend: React and Typescript.Backend: Golang and Rust.Cloud Services: Cloudflare, GCP, AWS.

Role Overview Unity Technologies is looking for a Senior Technical Product Manager to join the Core Engine team in Stockholm, Sweden. This role shapes the direction and strategy for Unity’s engine technology, focusing on the needs of developers worldwide. What You Will Do Work with engineering teams, designers, and product stakeholders to define and prioritize new features Guide the development of engine capabilities that improve user experience and performance Ensure the engine technology supports a broad range of developer requirements

Role Overview Unity Technologies is looking for a Senior Technical Product Manager to guide the development and improvement of Engine Authoring Features. This position is based in Stockholm, Sweden. What You Will Do Work closely with engineers, designers, and other teams to define and deliver new authoring features in the Unity engine. Gather and analyze feedback from users to inform product direction. Shape product strategy and priorities for content creation tools used by developers worldwide. Help set the vision for how creators build and refine interactive experiences in Unity. Impact This role influences how developers craft interactive content, supporting teams across the globe as they build visually impressive and engaging projects using Unity’s technology.

Join Us in Revolutionizing Healthcare!At Tandem Health, we are dedicated to transforming the healthcare landscape by prioritizing clinicians. Our platform, crafted by clinicians for clinicians, is driven by a profound understanding of real-world challenges, featuring intuitive medical notes and workflows that enhance patient care.As a rapidly growing health-tech company supported by leading investors, we are on a global expansion journey. We thrive on agility, curiosity, and the belief that creating meaningful solutions starts with an exceptional team. If you're driven by impact and innovation, we want to hear from you!Role OverviewAre you passionate about developing products that genuinely resonate with users? In your previous role, did you often find yourself eager to deliver the next set of enhancements to your users? At Tandem, you will harness that enthusiasm to address the challenges faced by clinicians who currently navigate systems that hinder rather than help them.As a Product Engineer, you will play a crucial role in shaping our product vision, collaborating closely with designers, fellow engineers, and end-users. You will take ownership of features from conception to deployment, ensuring they effectively address user pain points and delight clinicians across Europe. Your technical expertise will be complemented by your commitment to crafting outstanding products that solve real problems.Key Responsibilities:Lead product development end-to-end, defining requirements, establishing priorities, and converting ideas into technical specifications.Collaborate directly with designers, users, and fellow engineers to develop and deliver impactful features.Design and implement scalable web applications utilizing modern front-end and back-end technologies.Ensure applications offer an intuitive and seamless user experience, integrating feedback from stakeholders and end-users.Maintain exceptional code quality through thorough reviews, testing, and documentation.Employ cutting-edge tools to expedite the delivery of exceptional features.Qualifications:A strong product-oriented mindset with the capability to define, build, and deliver impactful features from start to finish.Demonstrated experience in building and deploying production-grade Python systems.Proficient programming skills in relevant languages and frameworks.Ability to work collaboratively in a fast-paced, innovative environment.

Role Overview Unity Technologies is seeking a Senior Technical Product Manager to drive improvements in Engine Authoring User Experience (UX) and workflows. This position is based in Stockholm, Sweden. What You Will Do Lead the development of solutions that enhance how users interact with Unity's engine authoring tools. Work closely with engineering, design, and marketing teams to gather feedback and understand user needs. Translate user insights into clear product requirements. Shape the product roadmap and prioritize features that increase engagement and streamline workflows. Ensure Unity's engine technology continues to meet and surpass user expectations. Who You’ll Work With Engineering teams focused on core engine development. Designers dedicated to improving user experience. Marketing professionals who help communicate product value.

Are you passionate about leading projects in the production sector? AFRY is seeking a motivated Project Manager to join our vibrant team in Stockholm. In this role, you will be responsible for overseeing production projects from inception to completion, ensuring that they are delivered on time, within scope, and within budget. You will work closely with cross-functional teams, manage client relationships, and implement best practices to optimize project outcomes.

Are you passionate about product regulations and compliance? Join AFRY as a Product Compliance Specialist, where you'll work across various industries to ensure products meet regulatory standards. Collaborate with international teams, navigate complex regulations, and contribute to the development of compliant products that make a difference.

WHO WE AREAt Trustly, we are pioneering a smarter, faster, and more secure financial landscape by transforming the payments sector. As a prominent figure in Open Banking Payments, we are setting the standard with Pay by Bank at checkout, delivering unmatched convenience, speed, and freedom for millions of consumers and merchants globally.Our Vision: To establish the world's most innovative payment network and reshape the payment experience.Trustly is a diverse team of innovators, collaborators, and achievers. If you are motivated by a strong purpose and thrive in a fast-paced, entrepreneurial, and rapidly growing environment, we invite you to join us and be part of a team that is redefining the global payment landscape.About the TeamOur Product & Technology organization is at the forefront of developing Trustly’s offerings. Our teams work collaboratively on innovative concepts, product development, and strategic vision. The Product & Tech department comprises around 180 talented individuals.About the RoleWe are seeking to enhance our team responsible for our core backend services by hiring experienced Software Engineers proficient in Java and Golang.