Top Senior Software Engineer Jobs

Design, develop, and maintain secure, scalable C#/.NET backend services, APIs, and event-driven microservices on Azure. Manage SQL and NoSQL databases, cloud infrastructure, containers, messaging, CI/CD, monitoring, and security. Lead spec-driven and AI-assisted development using Claude Code, establish engineering guardrails, mentor team members, conduct code reviews, influence technical direction, and support production reliability.

Design and architect AI-powered product features used by healthcare providers. Own major initiatives end-to-end, collaborate with product and design teams, anticipate system bottlenecks, reduce technical debt, and ship reliable, high-quality software. The role requires full-stack development across modern web technologies and cloud infrastructure, strong product judgment, and ownership of complex zero-to-one engineering efforts.

Own the design, development, testing, delivery, and ongoing improvement of Stord’s software platform. Build and modify Elixir/Phoenix back-end features, interact with React front-end applications, translate wireframes into production features, and solve technical and supply chain challenges. Collaborate cross-functionally to understand customer and vendor needs, prototype solutions, and launch improvements while maintaining high-quality, secure, reliable, and maintainable code.

Lead technical direction for a product team building high-throughput, fault-tolerant Elixir systems. Design and implement distributed, event-driven services; write production code; guide architecture, roadmap, reviews, and technical standards; improve reliability and observability; mentor engineers; and collaborate across teams. The role also integrates AI-assisted and agentic development workflows, operates cloud infrastructure, and contributes to systems supporting order, warehouse, transportation, and consumer experience platforms.

Develop, maintain, and enhance scalable enterprise web applications, internal tools, libraries, and shared components. Collaborate with cross-functional teams, participate in code reviews, create technical documentation, and promote knowledge sharing. The role requires strong software development practices and experience with TypeScript, JavaScript, or C#, plus Angular or ASP.NET Core. Familiarity with Azure, Ionic, SQL Server, Azure DevOps, NServiceBus, Cypress, and OpenAI technologies is expected.

Designs and builds backend services, internal libraries, cloud-native applications, and AI agent workflows using .NET, Azure, and Semantic Kernel. Develops reliable, observable enterprise software, contributes to architecture and design documentation, performs code reviews, mentors engineers, and improves performance, security, developer experience, and CI/CD practices. May also develop Angular tooling and components.

Develops, maintains, and enhances scalable web applications, internal tools, libraries, and shared components for international enterprise clients. Collaborates with cross-functional teams, participates in code reviews, creates technical documentation, and shares knowledge. Requires strong software development principles, design patterns, cloud, database, CI/CD, messaging, testing, and mobile framework experience.

Lead design and delivery of scalable software features from design through production. Collaborate with product and cross-functional teams, mentor engineers, champion automation and CI/CD, ensure code quality and documentation, and drive process improvements to accelerate reliable feature delivery.

The Senior Software Engineer will own critical features, develop and deploy scalable software systems, and collaborate with cross-functional teams in a fast-paced environment.

Develops, maintains, tests, debugs, and enhances complex software systems based on documented requirements. Designs and implements software, algorithms, database interfaces, and queries; integrates systems; resolves defects; analyzes performance; and contributes to system design, documentation, testing, and development process improvements. May lead software teams and requires experience supporting comparable federal programs.

Leads software engineering efforts by developing resilient applications, coaching engineers, reviewing code and designs, overseeing source control and deployments, improving testing and performance practices, and contributing to architecture and requirements. Partners with technical and business stakeholders, presents engineering work, supports risk and regulatory controls, and ensures adherence to SDLC, security, audit, and change-management standards.

Design, code, test, integrate, and maintain front-end and back-end software for mission-critical systems. Develop interoperable service-based solutions, configure databases, resolve discrepancies, participate in Agile ceremonies and code reviews, and coordinate with stakeholders to meet technical and business requirements. The role supports an NGA national security program and requires active Top Secret clearance with the ability to obtain SCI and a polygraph.

Designs, codes, integrates, tests, and maintains front-end and back-end software for mission-critical systems. Develops service-based architectures using open standards, supports database configuration, resolves discrepancy reports, participates in Agile ceremonies and code reviews, and coordinates with stakeholders. The role supports National Geospatial-Intelligence Agency national security missions and requires an active Top Secret clearance with the ability to obtain SCI and a polygraph.

Lead design and delivery of agentic-first capabilities in Nexus Repository Manager: architect multi-agent subsystems, own product area execution, define verification and eval harnesses, ensure security/reliability for software supply chain features, and mentor senior engineers while coordinating cross-functional stakeholders.

Build and maintain automation, CI/CD pipelines, integration and end-to-end testing frameworks, and deployment processes. Improve system reliability, observability, and operational workflows by eliminating manual processes and implementing scalable solutions. Collaborate across engineering teams to streamline operations and use AI tools to enhance developer productivity.

Design and architect scalable software systems for automated underwriting and decisioning. Build backend features with Python and Django, maintain reliability through automated testing, conduct code reviews, resolve technical bottlenecks, collaborate cross-functionally, mentor engineers, and use AI-assisted development to improve software delivery.

Design, develop, test, and maintain software for rail communication and passenger information systems. Build Linux-based applications and distributed systems using Java and related technologies, translate requirements into solutions, participate in architecture reviews, and support the full product lifecycle. Develop automated tests, troubleshoot defects, and ensure reliability, cybersecurity, performance, and safety. Collaborate with global engineering teams and contribute to development practices within the North American R&D organization.

As a Full Stack Software Engineer, you will develop and maintain robust backend systems using Ruby on Rails, collaborating with cross-functional teams to enhance the real estate platform's performance and user experience.

Leads the design, development, testing, debugging, integration, and optimization of complex aerospace software systems. Defines requirements, documents code, conducts reviews, mentors junior engineers, collaborates cross-functionally, and drives continuous improvements in software quality and performance. The role supports hardware integration and requires work in a hybrid environment with occasional travel, U.S. citizenship, and an active Top Secret security clearance.

Lead end-to-end development of scalable full-stack applications, including responsive user interfaces, server-side logic, APIs, integrations, testing, and deployment. Oversee and mentor engineering team members, collaborate with product managers and designers, guide architecture decisions, resolve client workflow challenges, and optimize application performance. The role also contributes to CI/CD, automated testing, code reviews, and continuous improvement in an Agile environment.

Lead design and implementation of scalable, reliable, secure distributed advertising platform services. Drive architecture, partner with PM/Data Science, deliver end-to-end projects, use telemetry and A/B testing, mentor engineers, and influence platform-wide technical direction.

Build and maintain Python-based automation, services, test infrastructure, and performance analysis tooling for a distributed database system. Collaborate with internal stakeholders, improve developer tooling and reproducible testing, analyze system performance, and create documentation and runbooks. The role requires strong software fundamentals, systems thinking, Linux and CI experience, and the ability to learn new languages and systems quickly.

Lead a small engineering team developing and integrating mission autonomy software for Group 3–5 unmanned aerial systems. Responsibilities include autonomy technology leadership, edge-platform software integration, robotics algorithm development, simulation-based validation, proposal and contract support, program milestone management, customer interaction, and R&D roadmap collaboration. The role requires occasional travel and the ability to obtain and maintain a U.S. Department of Defense security clearance.

Develop and maintain secure ASP.NET web applications and Oracle databases supporting embedded systems, command-and-control applications, communications, avionics, and weapons systems. Responsibilities include software design, integration, testing, troubleshooting, configuration management, SDLC documentation, performance assessment, and compliance with government cybersecurity and quality standards.

Designs, develops, tests, and supports complex Salesforce applications using APEX, LWC, JavaScript, HTML, CSS, and nCino. Performs systems analysis, REST API development, technical planning, application evaluation, documentation, and process improvement. Coordinates project resources, manages technical tasks, ensures application efficiency and compliance, designs software test plans, and mentors junior engineers.