Top Backend Developer Jobs

Build and maintain full-stack software, cloud infrastructure, telemetry and data pipelines for grid-scale battery systems. Calculate battery performance metrics, connect manufacturing databases and physical devices, manage Azure resources with Infrastructure as Code, maintain CI/CD, improve observability, and resolve production issues. Collaborate with engineering, manufacturing, and product teams to deliver reliable, scalable systems for field deployments and factory production.

Develop and lead Java backend engineering for a high-volume margin calculation platform. Responsibilities include technical design, performance optimization, concurrent and distributed processing, batch and event-driven workflows, testing, production support, monitoring, resiliency, and root-cause analysis. The role translates complex financial requirements into reliable software, mentors engineers, establishes development standards, and partners with global technology, risk, operations, and business teams.

Develop and maintain enterprise and SaaS backend applications using Java and Spring Boot. Design RESTful APIs, manage authentication and authorization, build database models and queries, conduct code reviews, improve application performance and security, and collaborate with technical and business stakeholders. The role also involves testing, deployment, documentation, and maintaining cloud-based applications using AWS and Docker.

Build scalable backend services in Go for cyber and electromagnetic operations. Design high-performance APIs, graph data models, event-driven systems, and AWS microservices across cloud and on-premises environments. Develop automated tests, CI/CD pipelines, and secure, resilient production systems while collaborating with cyber operators, product teams, and frontend engineers.

Design and build high-throughput backend services for real-time operational data across cloud and on-premises environments. Lead architecture and technical execution for distributed, event-driven systems; define APIs; improve testing, code review, CI/CD, observability, and incident practices; troubleshoot production issues; mentor engineers; and partner with product, operations, and frontend teams to deliver secure, reliable capabilities.

Build scalable backend services in Go for cyber and electromagnetic operations. Responsibilities include high-performance APIs, graph database modeling, event-driven systems with NATS, AWS microservices, containerized deployments, CI/CD, automated testing, and observability. The role partners with cyber operators and frontend engineers to deliver secure, reliable capabilities across cloud and on-premises environments supporting national security missions.

Designs and builds high-throughput backend services for real-time operational data across cloud and on-premises environments. Leads architecture, distributed systems design, API development, CI/CD, incident response, technical strategy, and engineering standards. The role mentors engineers, partners with product and operations stakeholders, supports hiring, and delivers secure, reliable systems for national security and cyber operations.

Designs, develops, tests, deploys, maintains, and enhances backend software solutions. Analyzes requirements, derives software and performance specifications, conducts code reviews, and evaluates complex technical problems. Uses Java, C++, and/or Python, relational databases such as PostgreSQL, Git, Jira, and Confluence. Requires an active TS/SCI clearance with polygraph, 20 years of relevant software engineering experience, and a bachelor’s degree or equivalent experience.

Own and evolve backend platform, search, infrastructure, and reliability systems for AI software supporting life-sciences research. Responsibilities include building ontologies and lexical and semantic search, operating AWS and Kubernetes services, leading search database migration, designing dependable asynchronous workflows, and delivering production systems end to end. The role involves technical ownership, system reliability, rollout planning, and close collaboration with founders, engineers, product partners, and domain experts.

Build and maintain backend infrastructure and member-facing generative AI features that deliver personalized health and performance insights. Collaborate with Product, Design, Analytics, and Data Science teams to define requirements and deliver scalable solutions. Develop reliable software using Java, Kafka, AWS, and PostgreSQL; design RESTful APIs and relational databases; optimize performance; and maintain observability and monitoring systems.

Designs and maintains scalable backend services, APIs, data pipelines, automation, workflows, and business-system integrations. Collaborates with product, data, and internal business teams to deliver reliable technical solutions. Improves system performance, security, reliability, and maintainability; contributes to technical strategy, code reviews, and mentoring junior engineers.

Develop and maintain scalable backend systems, APIs, and microservices supporting WHOOP’s platform and member experience. Collaborate cross-functionally to deliver features, improve reliability and performance, implement secure coding practices, and strengthen engineering standards. The role may align with Product Security or Application Infrastructure, involving cloud infrastructure, developer enablement, observability, and data privacy.

Designs, builds, and operates scalable backend services supporting PayPal’s global credit products. The role develops RESTful APIs, event-driven asynchronous systems, and configuration-driven platforms using Java and cloud technologies. Responsibilities include improving scalability, reliability, performance, observability, and security; translating product, risk, and regulatory requirements into technical solutions; contributing to architecture and design reviews; mentoring junior engineers; and delivering solutions across the full software development lifecycle.

Build and scale Bubble’s backend infrastructure, distributed systems, workflow engine, data tier, and core backbone services. Improve performance, reliability, observability, capacity management, and scalability across billions of requests. Define SLOs, support high-volume workloads, participate in triage and on-call rotations, diagnose incidents, and implement durable fixes while collaborating with a small engineering team.

Build backend APIs, GraphQL services, ETL pipelines, event-driven systems, and distributed infrastructure for cybersecurity workflows involving vulnerability intelligence, EDR validation, deception, tripwires, and autonomous defense. The role includes production reliability, monitoring, incident response, debugging, customer-facing security features, and collaboration with engineering and product teams. The engineer will also mentor less experienced developers and ensure security automation is safe, explainable, and reversible.

Owns production infrastructure across on-premises and cloud environments, including Docker deployments, CI/CD, infrastructure as code, observability, GPU workloads, networking, security, and reliability. Contributes to Python backend services, APIs, databases, and real-time event handling while supporting customer deployments and collaborating with backend, ML, and product teams.

Design and develop secure, scalable, cloud-native backend services and APIs using Java and Spring Boot. Define API contracts, data schemas, authentication models, and service boundaries. Deploy and operate services on Kubernetes, collaborate on Helm charts and CI/CD, support production systems, and guide architectural decisions through ADRs. Work across PostgreSQL, object storage, identity providers, observability, and NoSQL systems while helping teams migrate from legacy infrastructure.

Lead ONDC integration by designing and implementing backend services and APIs. Ensure compliance with ONDC/Beckn standards, handle data modeling, performance tuning, API security, and transaction flows. Integrate logistics, payments, and catalog systems, write tests, conduct code reviews, and maintain high availability for ONDC services.

Build and operate Transit’s backend infrastructure for cross-chain exchange and RFQ orchestration. Responsibilities include pricing, quoting, routing, inventory management, settlement, orderbook matching, chain and venue integrations, compliance enforcement, and revenue attribution. Own systems from design through deployment and monitoring, manage financial correctness and inventory risk, and provide technical leadership through architecture, reviews, and mentorship.

Develop backend software in an Agile environment using AWS and Java, C++, or Python. Responsibilities include software testing, technical documentation, quality control, Git-based development, Jira and Confluence usage, and work with PostgreSQL and SQL relational databases.

Build and evolve mission-critical backend infrastructure and commercialization tools for Waymo’s autonomous vehicle fleet. Collaborate with Product, Security, and engineering teams to develop secure systems, including vehicle configuration, secure parts transactions, key provisioning, and security infrastructure. Apply backend engineering, microservices, cryptography, PKI, authentication, encryption, and access-control expertise to solve business-critical problems.

The Senior Back End Developer designs, builds, and maintains scalable infrastructure in cloud environments, and develops RESTful APIs, focusing on automation and system efficiency with strong experience in Python and DevSecOps practices.

The Back End Developer designs and maintains cloud infrastructure, focusing on data management and system integration, using various modern technologies.

Architect and build scalable backend APIs, platforms, and services for NimbleRx web products. Own backend features from design through release, solve complex technical problems, improve system performance and usability, promote engineering best practices, and mentor junior engineers and interns while collaborating with Product Management, Design, and engineering teams.

Develop and maintain SpaceX’s core test infrastructure framework and applications for production testing, integration testing, simulations, and flight systems. Improve software reliability, performance, safety, and user experience while collaborating with flight software engineers. Responsibilities include software design, development, testing, deployment, monitoring, performance optimization, and solving complex engineering problems. The role is onsite and may require extended hours or weekends based on launch schedules.