Backend Developer Jobs

About the Team Codex is OpenAI’s coding agent, helping developers write, review, and debug software. The broader Codex group combines research, engineering, design, and product to advance what AI agents can do. Codex Enterprise builds the agents and product capabilities that help organizations use Codex in their software development workflows. Unlike individual consumers, people at organizations work in teams, and our scope includes a product experience that works for those teams, building extensibility and discovery primitives, supporting enterprise administration and governance, and the capabilities that help us deploy Codex to organizations at scale. We help turn new agent capabilities into useful products that organizations can trust. About the Role We’re looking for a backend or backend-leaning full-stack engineer who pairs technical depth with strong product taste. You’ll build new products and major capabilities, help determine what shape they should take, and own the work from an ambiguous starting point through launch. Working closely with product managers and Forward Deployed Engineers, you’ll turn emerging needs and deployment insights into scalable product capabilities. The emphasis is on deeply technical product building, independent problem-solving, and thoughtful decisions about both user experience and system design. In this role, you will: Shape new Codex Enterprise products and features, applying product judgment to decide what to build and how it should work. Own projects from exploration through architecture, implementation, launch, and production operations, using feedback to guide ongoing iteration. Build ecosystem capabilities such as plugins, skills, hooks, and discovery experiences, alongside services for enterprise administration, governance, and usage visibility. Design reliable, secure, observable backend systems that support Codex experiences across web, IDEs, CLI, and CI/CD. Partner with product managers and Forward Deployed Engineers t

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. Senior Frontend Engineer An overview of this role As a Senior Frontend Engineer, you'll solve high-scope frontend problems and influence your team's technical and product direction. You'll ship moderately sized features with minimal guidance, improve quality and performance, mentor other engineers, and help establish standards for a high-scale web environment. You'll partner across product, design, backend, and frontend to make sound trade-offs, communicate clearly, and improve how the team delivers software. This is an opportunity to shape product experiences and frontend architecture for a global platform while helping define h

Role Purpose: At Jumio, the Software Engineer II (QA) will focus on ensuring the quality and performance of highly scalable web and backend applications. In this role, you will design and implement automated tests for web (Playwright/Selenium) and API-based solutions, leveraging your knowledge of Java or JavaScript. Collaborating closely with development and product teams, you will ensure Jumio's products meet the highest standards of quality and reliability. You’ll have an opportunity to learn and grow in a fast-paced environment while exploring new tools and methodologies. A problem-solving mindset, willingness to innovate, and attention to detail will make you successful in this role. T-Shaped Engineering Expectation: As part of Jumio’s engineering culture, you will adopt a T-shaped engineering approach. In addition to developing expertise in test automation and quality engineering, you will collaborate across the development lifecycle, including understanding software architecture, contributing to design discussions, and ensuring robust and scalable test solutions. Role Value: This role is critical to ensuring the reliability, scalability, and security of Jumio’s products. By building and maintaining automated testing frameworks, you will enable faster releases and higher confidence in the quality of our software. Example Responsibilities: Develop, maintain, and execute automated test scripts for web applications using Playwright, Selenium, or similar automation frameworks. Create and execute API test suites using tools such as Postman, REST Assured, or equivalent testing frameworks. Design and execute functional, regression, integration, and exploratory test cases based on business and technical requirements. Validate application functionality, backend services, APIs, and data flows across different environments. Identify, document, track, and verify defects, working closely with developers to ensure timely resolution. Execute automated test suites as part of C

POSITION SUMMARY The Full Stack Developer is skilled in PHP, Angular, and MariaDB/MySQL to build scalable, secure, and high-performance web applications. Key Responsibilities · Develop and maintain backend services using modern PHP and MariaDB/MySQL. · Build RESTful APIs and integrate them with Angular applications. · Develop responsive UI components using Angular, TypeScript, HTML5, and CSS/SCSS. · Modernize legacy AngularJS components to Angular. · Implement authentication/authorization (OAuth, SAML, JWT, MFA) and follow OWASP security practices. · Work with Docker, Git/GitHub, and CI/CD pipelines. · Monitor and optimize frontend and backend performance (Sentry, CloudWatch). · Participate in Agile/Scrum processes and conduct code reviews. SPECIFIC JOB RESPONSIBILITIES 1. Frontend & UI Orchestration · Cross-Framework Mastery: Develop and optimize complex UIs in Angular (v16+) or React , ensuring seamless state management and responsive design. · T3 Stack Architecture: Lead the development of next-gen features using Next.js , Tailwind CSS , and tRPC for end-to-end type safety. · Modern Tooling: Utilize Vite, Turborepo, and modern CSS patterns to maintain a high-velocity developer experience. 2. Full-Stack & Backend Engineering · Type-Safe APIs: Build and consume GraphQL and REST APIs. Leverage tRPC to eliminate the need for manual API documentation between the frontend and backend. · Polyglot Data Management: * Architect relational schemas and optimize complex queries in PostgreSQL . o Manage unstructured security telemetry and real-time logs in MongoDB . · ORM & Migrations: Use Prisma or Drizzle to manage database interactions with 100% type coverage. 3. AI Integration & Innovation · LLM Implementation: Integrate AI m

POSITION SUMMARY We are looking for a Full Stack Developer skilled in PHP, Angular, and MariaDB/MySQL to build scalable, secure, and high-performance web applications. Key Responsibilities · Develop and maintain backend services using modern PHP and MariaDB/MySQL. · Build RESTful APIs and integrate them with Angular applications. · Develop responsive UI components using Angular, TypeScript, HTML5, and CSS/SCSS. · Modernize legacy AngularJS components to Angular. · Implement authentication/authorization (OAuth, SAML, JWT, MFA) and follow OWASP security practices. · Work with Docker, Git/GitHub, and CI/CD pipelines. · Monitor and optimize frontend and backend performance (Sentry, CloudWatch). · Participate in Agile/Scrum processes and conduct code reviews. SPECIFIC JOB RESPONSIBILITIES 1. Frontend & UI Orchestration · Cross-Framework Mastery: Develop and optimize complex UIs in Angular (v16+) or React , ensuring seamless state management and responsive design. · T3 Stack Architecture: Lead the development of next-gen features using Next.js , Tailwind CSS , and tRPC for end-to-end type safety. · Modern Tooling: Utilize Vite, Turborepo, and modern CSS patterns to maintain a high-velocity developer experience. 2. Full-Stack & Backend Engineering · Type-Safe APIs: Build and consume GraphQL and REST APIs. Leverage tRPC to eliminate the need for manual API documentation between the frontend and backend. · Polyglot Data Management: * Architect relational schemas and optimize complex queries in PostgreSQL . o Manage unstructured security telemetry and real-time logs in MongoDB . · ORM & Migrations: Use Prisma or Drizzle to manage database interactions with 100% type coverage. 3. AI Integration & Innovation · LLM Implementation: Integr

Role Overview Build the software services that power products, platforms, and better business decisions. As a Software Engineer II, you’ll develop scalable backend applications, APIs, integrations, and AI-enabled features using Python and cloud technologies. You’ll contribute to solutions from design through production, helping improve reliability, performance, security, and developer productivity. This is an opportunity to solve meaningful engineering challenges, grow your technical ownership, and collaborate with experienced engineers across the development lifecycle. Here’s a breakdown of what you’ll do (not all of it, just the important stuff) Design and build scalable backend services, REST APIs, integrations, and reusable software components using Python and, where relevant TypeScript. Develop data ingestion, transformation, service-to-service communication, and automation capabilities that support reliable product experiences. Contribute to AI-enabled features and use AI development tools responsibly to improve coding, testing, research, documentation, and delivery. Apply sound engineering practices across architecture, performance, security, testing, debugging, and maintainability. Deploy and operate services using AWS and CI/CD workflows, contributing to monitoring, troubleshooting, documentation, and continuous improvement. Partner with engineers and cross-functional colleagues through design discussions, code reviews, technical problem-solving, and knowledge sharing. These are the essentials you’ll need to get an interview 3–5 years of professional experience building and delivering production software in an agile environment. Strong hands-on experience with Python and backend development, including APIs, integrations, or service-oriented applications. Experience working with cloud platforms, preferably AWS, and familiarity with deployment or CI/CD practices. Working knowledge of software design principles, testing, debugging, performance optimization, an

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As Engineering Manager for the Agent Execution group , you'll lead more than 10 engineers who build foundations for AI agents to run safely and effectively across GitLab. You'll give the group clarity, remove obstacles, and help teams move quickly while protecting what matters. You'll contribute to design reviews on sandboxing and agent observability, work alongside staff engineers, and use modern AI coding tools and agent harnesses in your work. What you’ll do Lead the Agent Tools, Agent Observability, and Runner Execution teams across frontend, backend, and AI engineering, with each team anchored by a s

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role The Purchase team sits within GitLab's Monetization section and owns the end-to-end purchase experience for all GitLab products, including new purchases, add-ons, upgrades, and self-service promotional discounts. As a Staff Fullstack Engineer, you’ll work across the frontend and backend to build the interfaces customers use to buy and expand GitLab, along with the services that process transactions and integrate with billing and customer relationship management (CRM) systems. Because this work can directly affect revenue and involve confidential or financial information, you’ll use strong technical judgme

Job Title Software Technologist - C# .NET Full Stack Job Description C# .NET Full Stack Developer Philips is a global leader in health technology, dedicated to improving lives through meaningful innovation. One of our core businesses, Connected Care , focuses on delivering smarter, data-driven solutions that connect patients, providers, and systems to improve outcomes and efficiency. This role sits within Hospital Patient Monitoring (HPM) , which provides advanced monitoring solutions for acute care settings. From bedside and transport monitors to centralized systems, HPM helps clinicians identify at-risk patients and intervene quickly. The position is based in Bangalore, a key hub supporting innovation and collaboration across Philips. Your role: Participate in the full software development lifecycle, from requirements analysis to deployment Design and develop scalable, secure, and maintainable applications using C# and .NET technologies Implement front-end components and integrate them with backend services Develop and execute unit, integration, and system tests to ensure quality and reliability Conduct code reviews to maintain coding standards and best practices Collaborate with DevOps teams for deployment and monitoring Diagnose and resolve software defects, ensuring optimal performance Create and maintain technical documentation (architecture diagrams, API specs, user guides) Stay updated on emerging technologies and apply innovative solutions Mentor junior developers and contribute to a culture of continuous improvement. You're the right fit if: Experience: Bachelor's Degree in Computer Science, Software Engineering, Information Technology</p

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Software Engineer on the Duo CLI functional team, part of the Developer Clients group within GitLab's AI Clients stage, you'll design and build tools that bring GitLab Duo into developers' daily terminal workflows. You'll shape AI-assisted experiences across GitLab Duo CLI and its supporting infrastructure, working mainly in TypeScript across the frontend and backend and making key architectural decisions about the CLI's future direction. You'll also have opportunities to contribute across Developer Clients, including our JetBrains plugin in Kotlin and our VS Code extension in TypeScript, when

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Staff Software Engineer, you'll help lead two important areas for GitLab Security: the data layer behind our vulnerability and dependency management capabilities, and our move toward services outside the GitLab monolith. You'll design and develop systems that ingest, store, index, and query security report data, including integrations with key third-party systems. With a strong focus on PostgreSQL and scalable backend design, your work will support security features delivered by teams across GitLab. You'll take ownership of large deliverables from early ideas through implementation, working directly

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As an Intermediate Software Engineer in GitLab's Security section, you'll contribute to the data layer behind our vulnerability and dependency management capabilities. You'll design and develop well-scoped features within the systems that ingest, store, index, and query security report data, including integrations with key third-party systems. With a strong focus on PostgreSQL and scalable backend design, your work will support security features delivered by teams across GitLab. You'll work with clear context and strong support from the Senior Software Engineers and Staff Software Engineers around you. Yo

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Software Engineer, you'll work across two important areas for GitLab Security: the data layer behind our vulnerability and dependency management capabilities, and our move toward services outside the GitLab monolith. You'll design and develop systems that ingest, store, index, and query security report data, including integrations with key third-party systems. With a strong focus on PostgreSQL and scalable backend design, your work will support security features that teams across GitLab deliver. You'll own significant parts of larger deliverables from design through delivery. You'll shape the

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. Engineering Manager - Database Change Management An overview of this role As Engineering Manager, Database Change Management, you'll lead a remote backend engineering team in the Database Excellence stage. The team owns database health and the database upgrade experience across GitLab.com and self-managed deployments. You'll guide two missions at once: keeping one of the largest PostgreSQL installations in the world within its capacity limits, and delivering a multi-year replacement of GitLab's database migration system so customer upgrades become dramatically faster and safer. Reporting to the Database Excellence stage's enginee

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Software Engineer on the Duo CLI functional team, part of the Developer Clients group within GitLab's AI Clients stage, you'll design and build tools that bring GitLab Duo into developers' daily terminal workflows. You'll shape AI-assisted experiences across GitLab Duo CLI and its supporting infrastructure, working mainly in TypeScript across the frontend and backend and making key architectural decisions about the CLI's future direction. You'll also have opportunities to contribute across Developer Clients, including our JetBrains plugin in Kotlin and our VS Code extension in TypeScript, when