Full Stack Software Engineer

Valiant Harbor International is a CVE Service-Disabled Veteran Owned Small Business that specializes in technical, programmatic, acquisition, compliance, and financial services for Government science and technology, research and development, and technological programs. At Valiant Harbor International, we emphasize our intense focus on helping federal government agencies identify and address organizational challenges to tailor and integrate specific solutions to solve their most difficult problems. Success is defined by our ability to meet our customer’s needs quickly, efficiently, and effectively —we are a management consulting firm with a successful record of offering a wide range of professional, scientific, and technical services requiring a high degree of expertise and training.

Job Description
Valiant Harbor International is seeking a Full Stack Software Engineer to support the Air Force Research Laboratory (AFRL). This role is ideal for a highly technical and innovative software engineer with experience designing, developing, and optimizing full-stack solutions to support advanced DoD initiatives in a secure, mission-critical environment. The role will be performed at Hanscom AFB, Lexington, MA (outside of Boston).

Job Responsibilities

• Design, develop and maintain software solutions using a variety of programming languages, depending on the project needs.


• Write clean, efficient and well-documented code that adheres to industry standards and best practices across languages.


• Develop scripts and programs to Integrate enterprise applications and related databases.


• Maintain version control and code integrity with the use of Git, ensuring consistency in multi-language projects.


• Debug, test and optimize applications across platforms and environments to ensure high performance and security.


• Troubleshoot and resolve complex technical issues, often involving interactions between systems written in different languages.


• Optimize software architectures to meet performance benchmarks, using tooling and metrics to evaluate execution efficiency.


• Document technical designs, code logic and integration points for maintainability and knowledge sharing.


• Adapt quickly to new technologies and frameworks, applying the right language or tool for the problem defined by the customer.


• Take part in code reviews by providing constructive feedback across language domains.


• Support the development and maintenance of common libraries and shared tools across multiple software teams.


• Define client's objectives by analyzing user requirements, envisioning system features and functionality.


• Collaborate with stakeholders to inform them of system design and development.


• Analyze and decompose software requirements across system components and subcomponents.


• Managing the complete software development process from conception to deployment.


• Develop roadmaps, strategic design plans, and system architecture documentation.


• Capture, refine, and document reference architectures and ensure compliance with cybersecurity and development standards.


• Provide recommendations on tools and system solutions based upon industry standards and best practices.


• Ensure the completion of application development by coordinating schedules, identifying risks and mitigation strategies, contributing to team meetings, and troubleshooting development and production issues across multiple environments and operating platforms.


• Participate in weekly meetings with internal technical manager to provide stakeholder's work status updates.


• Collaborate with stakeholders to formulate strategies for agile prototyping and scalable deployment.


• Remain current on DevSecOps practices, emerging design patterns, and system architecture trends.


• Work directly with stakeholders and product owners to define requirements and build product lines.

Job Requirements

• Must have a current TOP SECRET security clearance and be SCI eligible prior to selection.


• Bachelor’s degree in Computer Science, Software Engineering, or a related STEM discipline.


• 3-8 years of engineering experience in full-stack software development, including Linux/Unix proficiency, and at least 2 years of Java and XML experience.


• Proven experience designing and building scalable, secure, and high-performance software systems.


• Problem solver and strong learner, willing to become a SME and train others.


• Able to work in the office 3–4 days per week.


• Available for frequent travel.


• Former military or familiarity with the DoD environment (ideally with SIPR/JWICS exposure).

Salary Range: Negotiable