Top Software Engineer Jobs

Leads development of algorithmically complex software for national security and compositional systems of systems. Responsibilities include designing, optimizing, troubleshooting, integrating, and testing software; reverse engineering subsystems; developing custom tools and infrastructure; supporting demonstrations; documenting solutions; and mentoring junior engineers. Requires strong C++ expertise, security fundamentals, analytical ability, and adaptability. The role is full-time in person in Arlington, Virginia, supporting DoD-related capabilities.

Build HPOS, a greenfield, multi-tenant property management platform. Own the full stack from PostgreSQL data models and TypeScript APIs through React applications, event-driven workflows, Azure infrastructure, CI/CD, observability, and warehouse integrations. Establish architecture, security, testing, deployment, and development patterns for future services. Collaborate with data teams on change data capture and read models while delivering production-ready software at a rapid zero-to-one cadence.

Build and maintain Flutter mobile applications, web applications, backend services, REST APIs, databases, and third-party integrations. Implement AI-powered features, automated tests, secure coding practices, and CI/CD workflows. Collaborate with product, design, QA, and development teams to deliver accessible features, troubleshoot production issues, improve performance, and support releases within an established architecture.

Own and support HR Green’s Workday integration portfolio, including transitioning integrations in-house, building and maintaining Workday Studio and packaged integrations, troubleshooting production issues, and managing regression testing. Develop secure APIs, monitoring, error handling, and documentation for payroll-sensitive systems. Also maintain and build AI agents and automations, establish testing and lifecycle standards, and collaborate with business stakeholders and external specialists.

Develop and optimize HPC software for computationally intensive workloads across CPU and GPU architectures. Responsibilities include parallel algorithm development, performance profiling, memory and scalability optimization, GPU enablement, compiler and systems-level improvements, and support for scientific applications such as physics, fluid dynamics, and molecular dynamics. The role also contributes to architecture, technical decisions, code reviews, research, feature development, and collaboration across distributed engineering teams.

Develop and maintain secure, scalable Salesforce solutions for a federal healthcare modernization program. Build Apex, Lightning Web Components, Flow, and API integrations; translate requirements; troubleshoot application and data issues; support testing, deployments, releases, documentation, Agile ceremonies, and DevSecOps processes. Collaborate with architects, administrators, QA, integration teams, and stakeholders while meeting federal security, privacy, accessibility, and governance requirements.

Designs, develops, maintains, and supports scalable financial and e-commerce applications. Responsibilities include building new functionality, troubleshooting customer and production issues, developing unit and higher-level tests, collaborating cross-functionally, supporting customer rollouts, researching technologies, and improving existing products. The role requires regular customer interaction and experience with .NET, ASP.NET, web services, SQL, UI development, automated testing, DevOps, and cloud deployment.

Manages software development teams and enterprise application delivery from roadmap planning through execution. Provides hands-on technical leadership, coaches engineers, oversees Agile ceremonies, maintains software quality, manages resources and risks, and partners with Product and Engineering stakeholders. Requires extensive enterprise software delivery experience, cloud expertise, cybersecurity awareness, and proficiency with C#, .NET, Java, or Python. The role requires commuting to the New York City office two to three days weekly.

Design, build, and own backend and distributed systems for a cloud-native platform supporting AI agent identity, policy enforcement, observability, and lifecycle management. The role includes developing secure APIs, making architecture tradeoffs, owning services through production, establishing engineering standards, leading design reviews, mentoring engineers, and collaborating with security, AI, and product teams.

Build and configure CMS websites, including templates, components, responsive layouts, content migrations, navigation, metadata, SEO, forms, integrations, and analytics tools. Test sites across browsers and devices, resolve bugs, train internal teams, and document ongoing maintenance. The role supports federal client projects on an as-needed freelance basis and requires accessibility, security, and responsible AI awareness.