Freelance Integration Software Engineer Jobs in New York

Peraton Labs is seeking a hands-on Software Integration Engineer to be responsible for building, testing, packaging, and maintaining the containerized software deliverables for programs with Test & Evaluation (T&E) components.

This engineer will implement CI/CD pipelines, build and debug Docker containers, write integration tests, prepare code drops for leaderboard scoring, and help enforce coding standards across contributions from multiple subcontractor organizations. The right candidate is a strong software engineer who is comfortable working across the stack, from low-level C++ and Python to container orchestration and automated testing.

Position Responsibilities

• Build, maintain, and troubleshoot Docker containers that package the full software system for delivery to T&E testbeds
• Implement and maintain CI/CD pipeline stages including automated builds, unit tests, integration tests, static analysis, and artifact packaging using tools such as GitLab CI, Jenkins, or GitHub Actions
• Prepare Monthly Code Drop (MCD) and quarterly Major Code Revision (MCR) packages, ensuring each release includes working containers, execution scripts, and updated documentation
• Execute self-test leaderboard runs on internal hardware, validate scoring outputs, diagnose failures, and report results for inclusion in Monthly Status Reports
• Write and maintain integration tests that verify software components from different subcontractor teams interoperate correctly when assembled into the unified container
• Apply and enforce coding standards on incoming subcontractor code contributions, including inline comments, documentation, consistent formatting, and version control practices
• Manage dependency resolution, version pinning, and reproducible build configurations so that containers produce identical results across development and evaluation environments
• Prepare integration demonstrations and technical materials supporting Preliminary Design Reviews, Critical Design Reviews, site visits, and quarterly progress reviews
• Maintain internal documentation including build procedures, known issues, interface specifications, and troubleshooting guides for the integration environment

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Required Qualifications

• Minimum of 5+ years of experience with a Bachelor's degree, 3+ years with a Master's degree, or a PhD in Computer Science, Electrical Engineering, Computer Engineering, or a related technical field
• Demonstrated experience with C/C++ and Python
• Hands-on experience with Docker containerization, including writing Dockerfiles, multi-stage builds, dependency management, debugging container runtime issues, and working with hardware device passthrough (USB, GPU)
• Experience building or maintaining CI/CD pipelines (GitLab CI, Jenkins, or GitHub Actions) for automated build, test, and deployment workflows
• Familiarity with Linux development environments, shell scripting, and standard build tools (CMake, Make, pip, conda)
• Experience writing integration and regression tests for multi-component software systems
• Working knowledge of Git version control, including branching strategies, merge conflict resolution, and repository hygiene in multi-contributor environments
• Familiarity with REST API concepts and basic experience testing or implementing API endpoints
• Ability to produce clear technical documentation: build instructions, interface notes, release checklists, and troubleshooting guides
• US Citizenship with the ability to obtain a security clearance

Desired Qualifications

• Experience working on government-funded research programs (IARPA, DARPA, or equivalent), particularly in roles involving software delivery to independent evaluation teams
• Experience with container security hardening, image scanning, or compliance requirements for government deployment environments
• Familiarity with Agile development practices in a research or R&D context
• Familiarity with generative AI/ML frameworks (PyTorch preferred), including packaging trained models for inference, running inference pipelines, and integrating model outputs into larger systems
• Hands-on experience with software radio and GNU Radio (3.8+), including out-of-tree (OOT) module development, flowgraph construction, and integration with SDR hardware (Ettus USRP series preferred)
• Experience with formal verification or formal methods tools (SMT solvers such as Z3, property-based testing, or symbolic regression tools such as PySR)
• Experience integrating software from multiple external organizations with different coding styles, languages, and delivery formats
• MS in Computer Science, Electrical Engineering, Computer Engineering, or a related technical field is preferred

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.