Top Senior Software Engineer Jobs

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.

Designs, builds, and scales full-stack web applications using React, TypeScript, Python, and AWS. Develops APIs and backend services, optimizes relational and document databases, implements automated testing, and manages Docker-based deployments and CI/CD pipelines. Collaborates with technical and non-technical stakeholders, translates business requirements into production-ready solutions, communicates clearly, and mentors colleagues while promoting strong engineering practices.

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 programmatic advertising partner integrations using OpenRTB and develops scalable backend systems for ad performance optimization. Owns the full software development lifecycle, drives experimentation through A/B testing, collaborates with product, data science, and external partners, and maintains production quality. The role also mentors junior engineers and advances AI-enabled engineering workflows through tooling, enablement, validation, and change leadership.

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.

Build production C#/.NET services, REST APIs, and React/TypeScript applications for a high-volume payment risk platform. Own features through design, implementation, testing, code review, and Azure/Kubernetes deployment. Contribute to LangGraph-based agentic applications while developing Python and LLM engineering skills. Work with automated testing, CI/CD pipelines, cloud services, and AI-assisted development tools in a small, senior-focused engineering team.

Lead architecture and implementation of Chainguard Repository’s customer-facing package registries, APIs, and artifact-serving services. Build and operate highly available Go backend systems, improve scalability, reliability, observability, performance, and load testing, and shape repository support for libraries, containers, images, and APKs. Collaborate across engineering teams to deliver secure, reliable infrastructure at scale.

Lead full-stack engineering for a real-time maritime autonomy data platform: build scalable, secure pipelines and cloud/edge systems, collaborate with hardware and AI teams, mentor engineers, drive technical decisions, and deliver user-facing interfaces.

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 launch scalable backend systems and APIs across LoopNet and other products using C#/.NET and AWS. Design architectures, meet performance SLAs, write comprehensive automated tests, leverage AI coding tools, mentor engineers, and contribute to technical consensus. Preferred experience includes frontend TypeScript frameworks, databases, distributed systems, containers, CI/CD, application security, cloud data warehouses, and Python-based data workflows.

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.

Anrok seeks a Software Engineer with 7+ years experience to own product feature development, fix bugs, and collaborate on technical issues.

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.

Leads the design, development, and implementation of production-grade web applications and biomedical data platforms. Builds Node.js and React applications, APIs, server-side components, and scalable cloud-based solutions. Provides technical leadership, mentors junior engineers, coordinates cross-site projects, manages release schedules, prioritizes features, collaborates with scientists and product teams, performs testing and code reviews, and maintains technical documentation and deployment guidance.