Top Software Engineer Jobs

Develop and maintain CISA’s Drupal-based HSIN-CI collaboration platform. Responsibilities include Drupal architecture, module development, configuration, API integrations, content governance, secure SBU/FOUO platform capabilities, performance optimization, modernization, CI/CD releases, issue remediation, documentation, and coordination with engineering, administration, governance, and UX teams. The role is hybrid in Arlington, Virginia and supports DHS security, accessibility, and information-management requirements.

Design and implement reliability tooling software, collaborate with teams on product requirements, analyze reliability data, and document tools for users.

Develop and support Fiserv’s cloud-native Vision NEXT payment platform. Responsibilities include building software applications, event-driven data ingestion, enterprise data pipelines, Snowflake solutions, APIs, automated testing, and AWS-based applications. The role involves integrating large-scale data, optimizing platform performance, troubleshooting production issues, participating in code reviews, and supporting client implementations. Collaboration occurs across software engineering, data engineering, analytics, and LATAM partner teams.

Design, develop, integrate, test, and maintain end-to-end software solutions. Build backend services, RESTful APIs, data integrations, and user-facing features using frontend frameworks. Participate in technical design, code reviews, troubleshooting, CI/CD, and Agile practices while collaborating with architects, product owners, and stakeholders. TS/SCI with polygraph required.

Design, develop, test, integrate, and maintain full-stack web applications. Build backend services, RESTful APIs, and frontend features (React/Angular). Collaborate in Agile teams, participate in design reviews, troubleshoot issues, and improve CI/CD and software quality. Work with stakeholders to translate requirements into production-ready, maintainable solutions.

Design, develop, test, deploy, and support scalable full-stack software across frontend, backend, APIs, services, and data layers. Own complex technical projects, make architecture and tradeoff decisions, optimize performance, contribute to DevOps and security practices, and use AI-assisted development tools. Collaborate cross-functionally with Product, Design, QA, and business partners while mentoring engineers, conducting code reviews, documenting systems, and improving engineering practices.

Leads hands-on development of full-stack applications using .NET, React, Next.js, and Azure. Owns architecture, coding, code reviews, testing, security, reliability, observability, production support, and cloud deployment. Integrates AI and GenAI capabilities such as LLM features, RAG, semantic search, and agentic workflows. Mentors engineers, establishes technical standards, collaborates with stakeholders, supports hiring, and helps deliver scalable, secure software.

Design, build, optimize, and scale Ray Data’s distributed data processing infrastructure for large-scale AI training and inference. Responsibilities include distributed execution, scheduling, resource management, data partitioning, fault tolerance, performance optimization, and system architecture. The role also involves collaborating with customers and AI-native companies to solve complex workload-scaling challenges.

Develop and optimize high-performance C++ numerical simulations for hydrology and water resources applications. Maintain and enhance Windows desktop software and cloud-based SaaS products, addressing computational efficiency, numerical stability, and large-scale data challenges. Collaborate with water resource engineers to translate scientific concepts into software, while contributing to architecture, code reviews, documentation, unit testing, debugging, and continuous improvement.

Develop and optimize a Windows desktop application featuring geospatial rendering, GIS visualization, and hydraulic model editing. Responsibilities include maintaining the rendering engine, implementing 2D/3D DirectX pipelines, developing computational geometry algorithms, integrating geospatial formats and coordinate systems, testing, documentation, code reviews, and mentoring junior engineers. The role collaborates with technical subject-matter experts to enhance the platform and support water resources engineering applications.

Build and evolve shared Ruby frameworks and backend systems powering Figmas REST APIs, async jobs, and workflow orchestration. Improve availability, scalability, performance, developer tooling, CI, and observability while modernizing a large Ruby codebase and partnering with product engineers to create reusable platform capabilities. Mentor teammates and establish shared libraries, APIs, documentation, and best practices.

Develop and customize applications on the Infor CloudSuite Industrial (SyteLine) platform, integrate third-party systems, and build full-stack web applications. Troubleshoot Infor environments, implement front-end interfaces and backend logic, participate in code reviews, and collaborate with analysts and stakeholders to deliver high-quality payment-processing solutions.

Design, build, and operate reliable backend services, APIs, data models, and distributed workflows for billing and financial systems. Improve correctness, traceability, observability, performance, and resilience across revenue-critical processes. Collaborate with Product, Finance, Operations, Data, and engineering teams, support production systems, resolve incidents, mentor junior engineers, and integrate AI technologies into engineering and operational workflows.

As a Senior Software Engineer, you'll design and implement cloud-native solutions using TypeScript, React, and NestJS while optimizing performance on Azure. Responsibilities include developing APIs, conducting code reviews, and ensuring software quality through testing, working collaboratively within an agile team.

Build and operate AI-powered product experiences, agent workflows, integrations, and distributed systems. Lead complex initiatives from discovery through production, improve agent performance and reliability, shape technical strategy, and mentor engineers. The role involves hands-on TypeScript development across React, Node.js, PostgreSQL, AWS, and Kubernetes, with responsibility for architecture, observability, testing, developer tooling, and operational excellence.

Design, develop, test, and support cloud-native software and REST/event-driven integrations for Fiserv’s payment platform. Build API test automation, troubleshoot application and network issues, support AWS deployments, monitor performance, and perform root-cause analysis. Collaborate with infrastructure, network, security, and client implementation teams while contributing to code reviews, technical specifications, platform reliability, and LATAM partner solutions.

Design, develop, test, and maintain full-stack C# software tools for aircraft maintenance and anomaly detection. Build responsive front-end interfaces, backend services, and APIs. Collaborate in an Agile team, deploy and troubleshoot software at NAS Whidbey, and write clean, scalable code to support F/A-18 fleet readiness.

Leads software development for RF emitter products using modern C++. Designs, develops, tests, debugs, integrates, and deploys software within an Agile Scrum team. Coordinates project-level testing, supports customer integration and test events, conducts software reviews, and mentors junior engineers. The role requires expertise in Linux, concurrency, distributed systems, build systems, DevOps practices, and software team leadership, along with Secret clearance or eligibility.

Build and maintain full-stack systems for a global monitoring application supporting federal partners and satellite data access. Responsibilities include designing scalable backend services and frontend applications, improving architecture and infrastructure, integrating complex customer requirements, and owning mission-system quality and availability. The role requires collaboration across teams throughout the engineering lifecycle and experience with cloud infrastructure, observability, geospatial data, and complex integrations.

Lead software design and development for cloud-based laboratory and data-management applications. Responsibilities include refining user stories, designing and implementing complex features, solving technical problems, mentoring developers, improving engineering practices, and collaborating across global Agile teams. The role focuses on C#/.NET, AWS, microservices, APIs, multi-tenant SaaS, IoT cloud technologies, automated testing, CI/CD, and regulated software environments.

Develop, deploy, and maintain in-vehicle software and DevOps toolchains to support radar signal processing and perception algorithms. Build data logging, visualization, HIL/SIL toolchains, offline analysis scripts, and support global algorithm teams and customers for prototyping, validation, and regression testing.

Design and implement AI-native frontend interfaces for advisors, own frontend architecture and state management, partner with design, build interactive diagrams and chat surfaces, and polish UX details like loading, empty states, and keyboard paths.

Build end-to-end full‑stack features for an AI-native wealth transfer platform: design data models, implement backend services in Go, front-end in React/TypeScript, integrate agents and workflows, collaborate with design and domain experts, and ship multiple times per day using modern observability and CI tooling.

Build and own the backend modeling engine for transfer tax, waterfall/distribution, and consolidation. Model complex trust and estate domains, make computations deterministic and checkable, validate logic with JDs and CPAs, and expose modeling for agent-driven workflows. Ship small changes frequently and support production monitoring and agent workflows.

Develop full-stack web applications, data transformations, analytics, and visualizations supporting national security missions. Collaborate with analysts, operators, and customers to define requirements and architect frontend and backend solutions. Maintain mission-critical servers and applications, support data workflows across varied formats and databases, and provide technical guidance across projects. The role also involves server framework development, systems administration, and contributing to robust solutions for big-data challenges.