Top Senior Software Engineer Jobs

Develop and maintain ultra-low-latency trading infrastructure in C/C++ on UNIX. Work across distributed systems, concurrency, OS, networks, and architecture; collaborate on large codebases and trading system components (feed handlers, OMS, order execution).

Lead and mentor on-shore/off-shore Java development teams to design, develop, test, debug, and deploy complex web applications and services. Drive technical reviews, estimates, best-practices, and incident resolution; collaborate with business sponsors and clients; write unit tests; ensure database and performance/security considerations are addressed.

Design, develop, test, and maintain flight software for a satellite constellation. Integrate with FPGA, EE, and ground teams, lead code reviews, mentor engineers, write unit/integration tests and documentation, troubleshoot on-orbit issues, and support full software lifecycle from requirements to deployment.

Lead design, development, and implementation of Salesforce solutions (LWC, Apex, Visualforce) including Experience and Commerce Cloud and Accounting Seed. Build integrations (REST/SOAP, payment gateways), CPQ and Marketplace apps, mentor developers, perform code reviews, and optimize platform performance and reliability.

Design and build large-scale backend systems for real-time trading. Lead complex projects, mentor juniors, and enhance system performance.

Design and deliver highly-available, low-latency cloud services and APIs for Vehicle Intelligence/ALPR. Lead architecture reviews, scale ingestion pipelines and APIs, mentor engineers, collaborate with Product and Design, and apply AI agent tools to improve development and customer outcomes.

Lead full-stack engineer to own and scale AXS's web platform across front-end, back-end, APIs, and data integrations. Architect modern front-end systems, ensure performance, accessibility, and responsiveness, guide a team of engineers, and collaborate with Product and Design to deliver scalable consumer and B2B web experiences.

Design, develop, and maintain the Aetna Health website using React/Redux and microfrontend architecture. Integrate with RESTful APIs, improve stability, performance, and scalability, support production, participate in architecture and design, lead technical discussions, conduct code reviews and testing, and mentor junior developers.

Senior back-end engineer responsible for designing, developing, and delivering cloud-native Java/Spring microservices and APIs. Partner with cross-functional teams to shape product roadmap, implement CI/CD, write unit tests, monitor production health, triage issues, and champion security and engineering best practices in an Agile environment.

Design and implement full-stack satellite ground software (OS, platform, mission layers). Build client/server services using service-oriented and message-bus architectures. Develop command-and-control, mission planning, constraint checking, and 2D/3D visualization tools. Work with C++, Python, Docker/Kubernetes, Postgres, Ansible, PKI and cloud provisioning. Produce software architecture documentation and support Agile/DevOps development and integration.

Provide technical leadership across PBM/Claims Adjudication web platforms: design and implement cloud-native web services, evaluate and integrate technologies, ensure scalability/security/accessibility, troubleshoot complex issues, drive CI/CD and best practices, and mentor engineering teams while collaborating with product and UX stakeholders.

Lead software architecture and development for BMC2 capabilities: define technical strategy, design microservices and event-driven systems, lead engineering teams, coordinate demos/RFPs/sales, interface with customers and cross-division programs, and deliver DoD Open Architecture solutions on Linux and cloud-enabled CI/CD pipelines.

Develop and maintain high-performance, real-time simulation software (C++ AFSIM) while supporting existing Java components. Design, code, test, debug, and integrate simulation entities and tools, perform analysis and user support, and work with configuration management and operations automation in a fast-paced team environment.

Designs, develops, debugs, and integrates software for C-UAS systems. Maintains baselines, implements OS applications and automation tools, supports fielded products, and collaborates on architecture and deployment on-site in Huntsville.

Technical lead for end-to-end web platform ownership: design front-end architecture and component systems, build scalable consumer and B2B applications, develop back-end APIs in C#/.NET Core, optimize performance and accessibility, and guide a team to align engineering with product goals.

Troubleshoot complex software issues on customer sites, manage expectations and prioritize requests, validate customer scenarios, engage with product teams for readiness, develop and deliver software training, and mentor junior engineers.

Design and build cloud-native backend services and APIs for an AI-driven radiology platform. Define API contracts, data schemas, and auth (OAuth2/OIDC); operate services on Kubernetes; integrate object storage, relational and NoSQL databases; lead architecture decisions and partner with cross-functional teams to ensure secure, observable, and scalable platform operations.

Design, build, and maintain scalable brokerage systems including gRPC microservices and a React admin UI. Lead regional engineering initiatives, mentor engineers, act as incident commander, troubleshoot production issues, and collaborate with global teams to support multi-market growth.

Design, implement, and maintain scalable brokerage systems and middle/back-office services (gRPC microservices, React admin UI). Lead regional recruitment and reliability, mentor engineers, act as incident commander, collaborate with global teams, troubleshoot issues, and build solutions supporting multi-language/currency markets and regulatory requirements.

Design, build, and maintain full-stack web applications and data pipelines for manufacturing; accelerate development using AI code-generation tools; deploy containerized solutions with CI/CD; review code, document systems, support legacy applications, automate tasks, and mentor teammates.

Lead design and deliver full-stack SaaS features end-to-end. Mentor engineers, make architecture decisions, implement backend APIs (Node.js), work on SPA frontends (React/Vue/Ember), write tests and design docs, troubleshoot production issues, and collaborate with product and design in an Agile environment.

Lead and deliver full‑stack SaaS features end‑to‑end: design architecture, implement Node.js back‑end APIs, work on React/Vue/Ember SPAs, write tests, mentor engineers, troubleshoot bugs, collaborate with product and design, and participate in Agile development.

Lead design and delivery of cloud-native, real-time distributed platforms for intelligent networking and agentic AI. Architect scalable, secure systems processing high-volume network telemetry, mentor engineers, drive production deployments, and solve complex ambiguous problems across networking, AI, and data domains.

Build and scale full‑stack systems and data pipelines that ingest large volumes of social data, deliver AI‑powered product experiences, improve reliability and performance, establish operational best practices, and provide technical leadership and mentorship across the engineering team.

Own and improve backend case execution systems (eligibility, batching, submissions, orchestration). Solve complex, data-driven decision and workflow problems, collaborate cross-functionally, and support internal UI/admin tooling as needed.