Top Backend Developer Jobs

As a Senior Software Engineer, you will architect and maintain scalable backend services, drive technical excellence, and collaborate across teams to enhance AI-driven systems.

As a Senior Software Engineer, you'll develop scalable backend services, own critical system components, optimize data pipelines, and troubleshoot infrastructure issues.

The Senior Staff Backend Engineer will enhance cloud infrastructure reliability and efficiency, design scalable solutions, and oversee the deployment of cloud services, analyzing business problems to optimize performance and availability.

The Senior Staff Backend Engineer will enhance cloud infrastructure's reliability and efficiency, design scalable systems, and collaborate across teams to improve architecture and deployment automation.

Design, implement, and own backend features from inception to production. Collaborate with product, marketing, and front-end teams to iterate quickly. Write clean, testable server-side code (Kotlin/Java or similar), work with relational databases and SQL, and operate in cloud-based environments with CI/CD deployment.

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 Senior Software Engineer will build applications and infrastructure focused on health care, collaborating with teams to improve technology and implement technical migrations.

Develop backend services for AI applications, focusing on software design, documentation, and code reviews. Requires proficiency in Scala and cloud environments.

Lead the design and development of Neurelo's architectural vision with a focus on Rust, building scalable, reliable systems and collaborating effectively across teams.

Design, enhance, and scale the ClickPipes data onboarding platform while improving infrastructure, deployment pipelines, and operational processes in a cloud environment.

Lead backend development using C#/.NET and cloud-native technologies. Build and maintain APIs, ensure quality and performance, troubleshoot issues, conduct code reviews, and drive software/process improvements.

Design and implement an LLVM-based backend JIT compiler for NVIDIA GPUs. Develop compiler passes and optimizations, focusing on high performance and low compile time. Collaborate with hardware, compiler, and application teams to resolve issues and influence future GPU architectures.

Design and build scalable backend systems, APIs, and data processing pipelines for terabytes of audio. Deploy and evaluate LLM and DSP-based solutions, iterate with researchers, and maintain production-grade infrastructure supporting data collection and user-facing features.

Design, build, and scale backend services for real-time food ordering and operations. Write high-quality Java/Go code, ensure reliability, observability, and testability, design scalable databases, analyze data with SQL, mentor engineers, and collaborate with frontend, mobile, product, and operations teams to improve production systems.

Design, build, and maintain Java backend services for order lifecycle, payments, device sync, and restaurant workflows. Improve APIs and event-driven systems for low-latency multi-device coordination and offline-first syncing. Collaborate with Android engineers, product, and cross-functional teams, ensure code quality through testing and observability, and own production services used in live restaurants.

Design and implement backend-focused full-stack product features. Collaborate with PMs, designers, and data scientists to spec, build, and maintain end-to-end systems using AWS, Node.js, SQL, and front-end technologies. Contribute to enterprise governance or AI capability teams, prioritize reliability, performance, and usability, and participate in cross-functional product development and iteration.

On-site Mid/Senior backend developer to manage CI/CD/Kubernetes, develop CCDI backend services, handle database integration/migration (PG, Oracle, MongoDB, Redis), implement Kafka event streaming, support Informatica/EAI migrations, provide production on-call support, perform system monitoring, incident response, and code review. Bilingual Korean/English required.

Build and own scalable, reliable backend services and platform architecture. Work across analytics, data, search, infrastructure, monitoring, cost management, security, and scaling. Ship production code, design systems with high code quality, and collaborate cross-functionally to deliver user-focused solutions.

Design, build, and launch backend services to process and analyze clinical data at scale. Collaborate cross-functionally, enforce secure coding and privacy, support production systems, and drive technical improvements.

Own design, build, operate, and monitor Ventura OS cloud infrastructure: compute, Kubernetes, storage, databases, identity, CI/CD, telemetry, GPU/ML serving, and build/release systems. Drive migrations, set platform standards, ensure reliability, observability, security, and cost efficiency while partnering with application teams and mentoring engineers.

Build and maintain backend systems in TypeScript, improve observability and metrics, automate deployments and Slack reporting, test and troubleshoot production systems, and clean up the existing codebase.

Design, build, and operate backend services and APIs in Node.js/TypeScript. Architect Kafka event-driven systems, optimize MongoDB at scale, integrate with EHRs (FHIR/HL7/Epic), support AI agent workflows, ensure HIPAA-grade security, and drive reliability, observability, testing, and mentoring across the engineering team.

Develop and maintain cloud-native backend microservices (Java/Spring Boot), operate enterprise production systems, troubleshoot issues, design/optimize relational and NoSQL databases, integrate event-driven architectures (Kafka/MQ), support observability and GitOps workflows, participate in code reviews and mentor junior engineers.

Develop, operate, and maintain cloud-native backend microservices and REST APIs. Migrate mainframe functionality to AWS GovCloud, integrate Elasticsearch and event-driven systems (Kafka/pub-sub), deploy on OpenShift/Kubernetes, participate in code reviews, on-call rotation, and collaborate with DevOps, QA, Security, Product, and Architecture teams.

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.