Top Senior Software Engineer Jobs

Lead technical design and delivery of Appian solutions for Retirement & Wealth: build process models, SAIL interfaces, records/data fabric, integrations (REST/SOAP, Salesforce, SQL Server), enforce development standards, mentor developers, manage CI/CD and deployments, troubleshoot production issues, and communicate status and risks to stakeholders and leadership.

Design, build, and maintain Java-based microservices and REST APIs for Enterprise CIAM. Lead SDLC activities, implement automated tests and CI/CD, perform code reviews, debug issues, and collaborate with cross-functional teams to ensure secure, scalable, high-quality software delivery.

Lead design and implementation of backend systems for Model-Based Engineering web applications. Build APIs, data-processing and analytics pipelines, optimize SQL, develop production-ready infrastructure, create test suites, mentor engineers, participate in architecture and tech selection, and ensure scalability, resilience, and performance for large-scale distributed systems.

Design, architect, develop, and test a high-capacity data and video system for the Rocky program. Lead UI design, translate requirements, perform system-level analyses, oversee code reviews, and research/implement emerging software technologies and development practices to meet program milestones.

Design, develop, and lead front-end user interfaces and HMIs for space and ground systems. Partner with stakeholders to translate requirements, lead analyses and code reviews, implement modern front-end technologies, and ensure alignment with software lifecycle, standards, and program milestones.

Design, implement, and ship medium-to-large full‑stack features for subscriptions, pricing, billing, and order generation. Improve system reliability, reduce technical debt, design robust data models/contracts, debug performance and correctness issues, and partner cross-functionally with Product, Design, and Data to deliver high-quality production software.

Senior full-stack engineer who builds backend-heavy features and customer-facing React UIs. Own end-to-end delivery: design, implement, test, monitor, and iterate on scalable RESTful microservices using raw SQL and cloud patterns. Collaborate with product and design, review code, ensure reliability, security, and data correctness.

Design, implement, test, and deploy full-stack features across a large cloud-native platform. Collaborate with product, design, and TechOps, produce documentation, propose improvements, and maintain high code quality and testing practices.

Lead and grow multiple full‑stack software engineering teams building highly available microservices, customer-facing web/mobile apps, and backend systems on cloud infrastructure. Drive engineering practices, scalability, resilience, Agile delivery, and migration from monoliths to microservices while mentoring engineers and collaborating with product managers.

Own and evolve the Subscriptions and Payments backend: design APIs, integrate providers, improve reliability and scalability, lead architecture and code reviews, collaborate cross-functionally, and participate in on-call rotations.

Design and develop Linux software for a cybersecurity product, owning features from design to delivery while collaborating with a distributed team.

Design, maintain, and evolve core backend systems and APIs. Collaborate with product teams to create durable and reusable systems while enhancing performance and security.

Develop and maintain satellite ground software for command-and-control, mission planning, and data processing. Perform full software lifecycle tasks (requirements, design, coding, testing, integration, documentation) within an agile, CI/CD team. Work on-site and collaborate across engineering and business units to deliver high-reliability ground system capabilities.

Lead full-stack development of satellite ground systems including command-and-control, mission planning, and data processing. Perform full software lifecycle tasks—requirements, architecture, design, coding, testing, integration, documentation, and support—within agile teams, delivering high-reliability CI/CD-enabled systems and collaborating across engineering and business units.

Lead technical design and hands-on development of low-latency, event-driven trading and market data platforms. Drive architecture, engineering standards, CI/CD, observability, and AI-assisted tooling; collaborate with product and solution teams; mentor engineers; ensure resilient, secure, cloud-native solutions aligned with enterprise strategy.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.

Senior full-stack engineer responsible for designing, building, and operating high-traffic consumer features across backend, APIs, frontend, and infrastructure. Own production reliability, observability, tests, security/compliance-aware designs, and deliver end-to-end features while collaborating cross-functionally and championing modern AI-assisted tooling and automation.

Develop, integrate, and deploy production-quality software for a 24/7 missile warning system. Convert algorithm prototypes into reliable, performant applications, build automated tests and CI tooling, debug and modernize codebases, and collaborate with cross-functional teams to deliver mission-ready capabilities.

Design, develop, and maintain cloud-based backend services and SaaS features; build scalable RESTful APIs and distributed systems; enforce coding standards, testing, performance, and security; mentor engineers; provide release and occasional off-hours support; drive process improvements and architecture decisions.

Design, build, and scale cloud-based backend platform components and connectors for ERPs, banks, payments, tax and subledger systems. Lead architecture, deliver highly available multi-tenant SaaS services (API gateway, event bus, identity, scheduler, search, workflow orchestration), ensure performance, security, extensibility and testability, mentor engineers, drive technical decisions, and support deployments and occasional off-hours support.

Develop and deploy software systems and applications in support of Intelligence Community/DoD missions. Contribute to system architecture, implement algorithms and prototypes, support sensor system design and C2, follow agile practices, and brief leadership on technical risks and recommendations. Work collaboratively on multidisciplinary teams and support planning and fielding of mission software.

Lead front-end development of secure, mission-critical GUIs using TypeScript/Vue and Node.js. Contribute production code, review peers, maintain CI/CD, tests, and UI components, coordinate with UX, produce documentation, and work on-site in Colorado Springs. Requires security clearance.

Lead design, development, and support of databases and data platforms for FircoSoft V6 and financial-crimes solutions. Build ETL, APIs, and real-time integrations, ensure data quality, security, governance, and performance tuning, support cloud modernization and migrations, and partner with Compliance and Operations.

Lead a team to develop user interfaces for mission-critical solutions. Responsibilities include code contributions, guidance, task assignments, and maintaining CI/CD pipelines.

Lead design, architecture, and development of simulation models and frameworks; author requirements and software designs; integrate hardware/software in lab environments; coordinate multi‑team priorities, perform design reviews, and mentor engineers; serve as customer‑facing SME for Flight Simulation Labs products and ensure delivery of high‑quality integrated simulation capabilities.