Top Backend Developer Jobs

As a Backend AI Engineer, you'll design scalable systems, develop APIs, manage data, optimize performance, collaborate with teams, and mentor junior engineers.

Design and build high‑performance instant payment solutions as an individual contributor. Collaborate with product and engineering to translate requirements, implement backend features (primarily in Python), optimize systems, assist support with troubleshooting, and work the 6:00pm–3:00am PST shift.

The Senior Software Engineer - Data Infrastructure will own data systems, build infrastructure, and ensure reliability in data processing for global trade.

The role involves designing and developing backend systems and applied machine learning solutions for integrity and safety challenges in AI interactions. Responsibilities include leading technical solutions, collaborating with cross-functional teams, and mentoring engineers while establishing best practices in software engineering and machine learning.

Design, implement, and maintain scalable Go backend services and APIs; collaborate on system architecture; optimize performance and reliability; ensure security and test coverage; participate in code reviews.

The Software Engineer will own various projects, scale the platform, and work closely with the product team while developing data-intensive software solutions.

The role involves developing scalable backend systems in Go and other languages, building high-volume analytics, and designing APIs for ML workflows.

As a Backend Engineer at Nightfall, you will build scalable APIs and services, manage databases, optimize AI/ML services, and ensure operational excellence.

As a Senior Backend Engineer at Offchain Labs, you'll tackle complex distributed systems challenges, optimizing performance and contributing to the security and scalability of blockchain technology.

You will lead engineering efforts to build new products using cutting-edge technologies, collaborating closely with founders and teams to shape the product roadmap.

The Staff Software Engineer will design distributed systems, drive architectural direction, mentor engineers, and integrate AI into backend development while ensuring scalability and resilience.

The role involves designing and developing backend services, ensuring code quality, collaborating with teams, and mentoring junior engineers.

Develop and maintain robust back-end services and APIs using GoLang and GraphQL. Optimize performance, support production operations, and engage in collaborative engineering efforts.

Lead full-stack development focusing on architecture, creating scalable systems and intuitive UIs. Collaborate with teams and mentor junior engineers.

The Senior Software Engineer will develop applications, automate tasks, analyze systems, collaborate with teams, and ensure software performance while leveraging modern web technologies.

The Senior Software Engineer will design and develop backend systems using Go and PostgreSQL, focusing on performance, architecture, and backend microservices for the Flock Safety platform.

As a Staff Backend Engineer, you will design core infrastructure for AI agents, lead technical initiatives, and ensure system reliability. Responsibilities include developing resilient AI agents and optimizing performance for enterprise data workflows.

As a Senior Software Engineer at Flex, you'll design and maintain financial services architecture, mentor junior engineers, and ensure scalability and security for innovative financial products.

The Sr. Backend Engineer will architect and scale backend systems for the Mode Earn App, focusing on APIs, performance optimization, and collaboration with cross-functional teams.

Lead backend engineering efforts by coordinating engineers, defining technical tasks, making architectural decisions, improving processes, and representing the company externally. Focus on backend Python development and collaborate with management to set engineering standards and achieve customer and operational objectives.

As a Backend Rails Engineer, you'll develop the core product, collaborating with engineering and product teams while maintaining production applications.

The Senior Backend Engineer will resolve scaling and performance issues, implement new infrastructure, and collaborate with customers and partners on system requirements.

As a Senior/Staff Backend Engineer, you will build scalable features and enhance backend capabilities focused on AI systems. Collaborate with prospects and customers to deliver production solutions.

Founding staff backend engineer to design and build a HIPAA-compliant virtual care platform. Own integrations (EHRs, billing, communication), data flows, reliability, monitoring, and engineering practices while partnering with product and leadership to balance speed and long-term scalability.

Design, implement, and maintain Python backend services and scalable data pipelines using dataframes, Parquet, and Databricks. Optimize distributed processing, build APIs, ensure data quality and observability, and mentor engineers.