Top Backend Developer Jobs

Build and operate backend and full-stack features for an early-stage product: sandboxed agent runtimes, real-time streaming, task queues, model routing, deployments (Cloudflare Workers + Fly.io), and production observability. Work closely with the CTO, be on-call, and ship infrastructure and product features that scale to large concurrent usage.

Build and own backend services, APIs, and data pipelines powering an AI automation engine for enterprise hardware engineering. Implement scalable, secure infrastructure for high-volume LLM calls, design-tool integrations (PLM, CAD, CAE), document and design data ingestion, and work directly with founders and customers to rapidly prototype and ship production features.

As a Staff Backend Engineer, you'll design scalable solutions, lead technical architecture, contribute to products, and work in a dynamic environment with a focus on high-quality code.

Build and scale backend systems for the Lapel platform, design APIs, manage database schemas, and optimize performance. Collaborate with product teams to implement reliable backend solutions.

Design, build, and maintain Node.js/TypeScript backend services; optimize for speed and scalability; collaborate with frontend and product designers; write clean documented code; run performance tests; ensure stability, compliance, and production readiness.

Design, build, and maintain scalable, low-latency backend services and cloud infrastructure for remote assistance. Implement APIs, data pipelines, protobuf/gRPC communication, NoSQL persistence (Redis), real-time data streaming, and resilience across AWS regions. Collaborate with onboard and frontend teams to ensure secure, reliable end-to-end data flow and optimize serialization and transmission.

Design and implement backend distributed services and modern APIs to support a cloud application. Build and deploy robust, secure web applications, triage and resolve production issues, optimize SQL and database internals, and collaborate through design and code reviews using tools like Rust, Go, GraphQL, Node, and Kubernetes.

Design, build, and maintain backend distributed services and APIs for an interactive data-warehouse-backed platform. Use Rust/Go/Node/GraphQL and Kubernetes, triage and debug production issues, optimize systems and SQL, and collaborate in design and code reviews to support a fast-growing cloud application and user base.

Design, build, and maintain backend distributed services and APIs for an interactive cloud data platform. Solve performance and SQL/database optimization problems, triage and resolve system issues, and collaborate on design and code reviews to support a rapidly growing user base.

Build and maintain backend distributed services and APIs for an interactive data platform. Debug, triage, and resolve system issues, design and implement features, and collaborate on design and code reviews to support a growing cloud application and user base.

As a Software Engineer, you'll design and scale BaseOS, develop backend services, manage infrastructure, and collaborate across teams to improve systems.

As a Staff Backend Engineer, you'll manage systems and APIs, optimize truck routing and payment processing, and integrate with telematics providers while utilizing AI coding tools.

Build and maintain scalable backend systems for R&D management: data modeling, API design, cloud deployment, and containerized services. Implement decision-modeling tools, integrate LLM capabilities, and collaborate with small cross-functional teams to deliver reliable production software supporting long-term scientific programs.

Design and implement scalable backend infrastructure for an AI-native security platform. Build and operate code-execution pipelines, agent orchestration, evaluation and training pipelines, and mentor engineers to ensure performance, reliability, and secure architecture at enterprise scale.

Design and build core backend systems and APIs for an AI-native ERP. Launch production-ready features end-to-end (CI/CD, deployment), manage complex accounting business logic, data migrations, scaling, and third-party integrations. Own architecture, testing, monitoring, and post-release care.

As an Infrastructure/Backend Engineer, you will design scalable systems, manage cloud environments, implement monitoring, and enhance infrastructure security for AI-powered services.

Design, build, and maintain server-side systems including databases and APIs. Optimize performance, ensure security, troubleshoot issues, and collaborate with front-end and product teams while staying current on technologies.

Design, build, and maintain server-side applications, databases, and APIs; optimize performance and scalability; implement security measures; collaborate with frontend and product teams; troubleshoot and debug; stay current with emerging backend technologies.

Seek a Senior Back End Engineer to develop AI-driven applications, mentor engineers, and solve complex engineering challenges while focusing on scalability and data integrations.

Design, build, and maintain backend services for an enterprise frontline communications platform using Node (Express/Nest), MongoDB, PostgreSQL, and GCP. Plan and own work, produce simple robust solutions, ensure high code quality, collaborate with teammates, and contribute to a high-impact, growing team in Chicago.

Design, build, and maintain backend features for flexEngage's microservices platform. Collaborate with product and cross-functional teams, write tests, participate in design/code review, improve code quality, and handle Tier 3 on-call troubleshooting for production issues.

Design, build, and maintain scalable backend services using Java (Spring) and Python (FastAPI/Django). Implement REST/GraphQL APIs, manage SQL and NoSQL databases, develop microservices, ensure security (OAuth2/JWT), write tests (JUnit/pytest), optimize performance, and collaborate with frontend and DevOps teams in Agile.

Design, build, and scale high-performance Java/Spring Boot microservices and event-driven systems using Apache Kafka. Develop secure REST APIs, deploy containerized apps on AWS EKS, integrate with AWS services, and ensure quality via testing, performance tuning, and CI/CD.

Design, build, and maintain scalable backend services in Java and Python. Implement RESTful/GraphQL APIs, optimize SQL/NoSQL databases, develop microservices, enforce security (OAuth2/JWT), write unit/integration tests, optimize performance, and collaborate with frontend and DevOps teams in Agile processes.

Build and maintain Java Spring Boot microservices and serverless functions. Design RESTful APIs, integrate with Vue.js front-end, write unit tests (JUnit/Mockito), deploy containerized apps to AWS EKS and Lambda, and maintain CI/CD pipelines for reliable releases.