Top Backend Developer Jobs

Interns will contribute to frontend, backend, mobile, or data projects. Responsibilities include building web and mobile applications, developing Java and Spring Boot services, managing databases, analyzing data with Python and SQL, integrating RESTful APIs, writing tests, debugging systems, creating reports and visualizations, and supporting AWS deployment and maintenance.

Develop, test, deploy, and sustain software for the JAMMEX program across the SDLC. Write secure, maintainable code, perform unit testing and debugging, integrate with systems and QA, participate in Agile ceremonies, document designs/releases, and remediate vulnerabilities to comply with DoD cybersecurity/IA guidelines.

Design and implement high-performance backend services and telemetry ingestion pipelines in Rust. Build storage and querying systems for high-throughput, time-series, high-cardinality data, collaborate on architecture, and help transition on-prem systems to cloud while ensuring production-grade performance and maintainability.

Own and architect BaseOS backend services that coordinate distributed batteries and operational workflows. Build scalable systems in Go and Python, manage AWS infrastructure with Terraform, and design reliable APIs and distributed systems. Partner with hardware, deployment, and operations teams, make high-impact technical decisions, mentor engineers, and lead end-to-end system ownership in an ambiguous startup environment.

Build reliable, scalable software products and APIs for Zip’s enterprise procurement platform. Responsibilities include designing web applications, writing maintainable code, collaborating with product and customer-facing teams, and solving complex technical challenges autonomously. The role spans backend and frontend development, integrations, reporting, workflows, and payment systems, with opportunities to work alongside AI/ML teams.

Design and build scalable backend services and RESTish APIs for a multi-tenant streaming platform. Develop customer- and enterprise-facing web server backends in Go, ensure web application security, and support highly available cloud systems. Conduct code reviews, troubleshoot issues, and improve performance, reliability, scalability, and maintainability across global services. The role requires experience with high-traffic web services, distributed architectures, containers, and CDNs.

Design, develop, and maintain scalable Java backend services, REST APIs, microservices, and data solutions for a GEOINT mission platform. Build cloud-native AWS applications, optimize PostgreSQL, MySQL, and Elasticsearch/OpenSearch systems, and provide technical leadership through architecture decisions, code reviews, troubleshooting, mentoring, and development standards. Collaborate with engineers, product owners, DevSecOps teams, mission users, and program leadership in an Agile CI/CD environment.

Design, build, and operate distributed backend systems using Go, TypeScript, GraphQL, Kafka, AWS, and Kubernetes. Lead modernization, migration, and event-streaming initiatives; own reliability, observability, CI/CD, and production operations; consult with enterprise clients on architecture and delivery; and contribute to technical training, conferences, and community activities.

Design, build, and maintain high-performance, scalable Java backend services and microservices for Walmart's catalog platform. Troubleshoot production issues, perform root-cause analysis, mentor junior engineers, work in agile teams, and contribute to cross-functional projects while leveraging cloud, CI/CD, NoSQL, and generative AI/ML technologies.

Leads backend software engineering for Scout Motors’ digital products, including order management, customer systems, marketing, inventory, loyalty, servicing, mobile apps, and vehicle connectivity. Designs scalable APIs, microservices, integrations, and technical architectures; codes, deploys, and operates systems; leads complex cross-functional projects; establishes engineering standards and operational excellence; and recruits, mentors, and manages high-performing software engineers.

Develop backend algorithms and prototypes in Java within Linux containerized cloud environments. Responsibilities include architecture design, model integration, refactoring, REST API development, UI design consultation, visualization results for frontend deployment, and automated testing. The role requires collaboration in Agile teams and familiarity with Docker, Kubernetes, Git, and related development tools. This is a hybrid role in Raleigh, North Carolina requiring Secret clearance.

Design, build, test, deploy, and support scalable backend applications across the full software development lifecycle. Collaborate with product, UX, nutrition, vendors, and business stakeholders to define solutions and interfaces. Solve complex architectural problems, refactor code, mentor engineers, communicate technical direction, and develop distributed systems using cloud, big-data, and backend technologies.

Design and operate scalable, event-driven backend systems in Python to power agentic AI workflows and real-time financial infrastructure. Own APIs, data architecture, reliability primitives, and platform foundations while partnering with ML and product teams to productionize AI-native financial systems.

Design and operate scalable, event-driven backend systems in Python for AI-native financial products. Build typed APIs (FastAPI + Pydantic), own data and ledger architectures, develop reliability primitives, partner with ML teams to productionize models, and ship platform foundations for audited, high-throughput financial workflows.

The Senior Software Engineer, Backend will design and maintain scalable backend services for artificial-gravity space stations, collaborating with cross-functional teams to ensure secure and reliable systems.

Design and implement RESTful APIs, microservices, and distributed systems. Collaborate with teams to promote inclusivity and strong communication.

As a Software Engineer at Kepler, you'll develop backend systems, manage data pipelines, and integrate AI for financial applications, ensuring production excellence and scalability.

Design and maintain scalable backend services, driving engineering excellence and collaborating with cross-functional teams to enhance platform capabilities.

The Senior Software Engineer will design, build, and maintain scalable backend services, enhance existing platform capabilities, and collaborate on technical projects across teams.

As a Senior Software Engineer, you will develop backend services for commerce, ensuring secure payment processes and system reliability, while leading cross-functional technical efforts.

Lead design and build of a versioned external booking API and core booking domain. Ensure transactional correctness, prevent oversells, handle retries and failures, create reusable connectors to PMS/POS, set reliability targets, and operate the platform with observability, tests, and runbooks while mentoring engineers and delivering partner integrations.

Build and secure scalable backend services for an AI product, focusing on authentication, authorization, data isolation, threat monitoring, secrets and key management, vulnerability management, audit logging, and enterprise data protection. Partner with security, compliance, product, and engineering teams to identify trust-boundary issues and deliver pragmatic security improvements. Contribute to cloud infrastructure, compliance initiatives, and general backend engineering in a fast-moving startup environment.

Design, develop, and support scalable backend systems for Scout’s digital products, including identity, access, and profile services across web, mobile, and vehicle applications. Collaborate with cross-functional teams, contribute to architecture, implement development best practices, provide 24/7 service ownership, and mentor engineers. The role requires hands-on technical leadership, strong backend development experience, database expertise, and proficiency in a supported programming language.

Senior backend engineer responsible for setting technical direction, designing scalable distributed systems, building customer-facing web applications, mentoring engineers, and applying machine learning to large-scale healthcare data. The role requires Java, Scala, or Rust expertise, cloud systems experience, technical design leadership, cross-functional collaboration, and adoption of agentic engineering practices.

Design, build, test, deploy, and support public-facing APIs and backend services in Go for Fastly’s security products. Own projects from technical proposals through production rollout, collaborate with product, frontend, platform, and security teams, and ensure stability, scalability, observability, and performance. Mentor engineers, contribute architectural guidance, use AI coding agents, and participate in on-call support.