Top Backend Developer Jobs

The Senior Backend Software Engineer will design and scale backend systems using Python and FastAPI, collaborate with researchers, optimize infrastructure, and implement testing and monitoring systems.

Develop scalable backend infrastructure for AI healthcare tools, focusing on API development, data processing, and compliance. Manage integrations with healthcare systems.

Build and operate the LangSmith Deployments runtime for long-running AI agents: design distributed queue/worker systems, own state persistence and job claiming, implement resumable streaming, instrument production systems, participate in on-call and incident response, produce system documentation, and contribute to open-source LangGraph.

The Senior/Lead Java Developer is responsible for designing and implementing backend modules, writing server-side code, and collaborating with cross-functional teams to drive projects and integrate new technologies.

The Senior Backend Software Developer will develop scalable systems using Node.js and MongoDB, collaborate with teams, ensure code quality, mentor developers, and stay updated on technologies.

As a Staff Software Engineer, you will lead product development from design through deployment, collaborating on software for delivery operations including backend services and user products.

Own and evolve backend systems and cloud infrastructure for an AI discovery platform. Build scalable services in Python and Go, manage IaC (Terraform), containerized deployments (Docker/CI/CD), integrate LLM providers, optimize performance/cost/observability, mentor engineers, and influence long-term backend architecture to support growth.

The Software Engineer Intern will design high-performance software for satellites, ensuring reliability while collaborating across teams to meet software requirements.

Develop moderately complex backend features and APIs using .NET Core; own small modules, participate in design, mentor junior engineers, perform code reviews, and collaborate with product, QA, and stakeholders. Primary focus includes data migration work and delivering maintainable, testable, production-ready services.

The Staff Software Engineer will build backend systems at Siro, driving end-to-end development of key features and ensuring systems' health while collaborating with product and design teams.

The Senior Software Engineer will design and develop backend systems and APIs, mentor other engineers, and resolve complex integration challenges in healthcare technology.

As a Senior Backend Engineer, you will architect solutions, develop RESTful APIs, design service communication systems, and ensure high product quality within a scalable team environment.

As a Founding Engineer, you will design and build AI backend features, APIs, and services for an autonomous research platform targeting market due diligence.

The Ground Software Engineer will develop and integrate software for lunar mission operations, collaborating with cross-functional teams and ensuring software safety and reliability for spaceflight.

As a Senior Backend Developer, you'll design and maintain high-volume pipelines and databases, implement ETLs for automated abuse-prevention, and develop monitoring solutions while collaborating with teams on safety systems.

Looking for a Senior Backend Engineer to build robust systems for a marketing automation platform. Responsibilities include designing and developing features, communicating with customers, and collaborating closely with the team.

The Senior Backend Engineer will design, build, and scale backend systems for a marketing automation platform, ensuring robust data handling and customer engagement while fostering direct communication with clients.

The Senior Backend Engineer at Veryable will develop services and APIs, mentor junior engineers, and drive system innovation within the product engineering team.

As a Backend/Infrastructure Engineer, you'll develop core backend systems, manage APIs, and integrate with hardware while ensuring system reliability and performance.

The Senior Backend Software Engineer will own backend projects, design APIs, leverage AWS, and collaborate with teams to build financial products.

Design and build software systems for customer retention, participate in the engineering life-cycle, and conduct code reviews.

The Senior Backend Software Engineer will develop and optimize critical systems for the aerospace industry, managing project priorities and overseeing various software projects.

Seeking an experienced Software Engineer for the Spacetime team to develop systems for satellite communication, requiring expertise in algorithms and large-scale distributed systems.

Design and develop backend services, improve system robustness, write maintainable software, and conduct reviews and testing strategies.

As a Staff Backend Engineer at FloSports, you'll lead backend development initiatives, focusing on scalable distributed systems, authentication frameworks, and mentoring engineers while collaborating with product teams for technical solutions.