Senior Full Stack Developer
Open Systems Technologies CorporationRole Overview
Open Systems Technologies Corporation is hiring a Senior Full Stack Developer. This is a full-time role in Alexandria. Part of Open Systems Technologies Corporation's Fullstack hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high-quality, best-in-class results that bring added value to our clients while investing in our employees’ futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance and a 401K match with immediate vesting.
Open Systems Technologies is searching for an experienced Full Stack Software Developer to provide software maintenance and engineering support under the Foundation Sustainment Services contract.
Job Description
OST has an exciting opportunity for an experienced Software Developer to help enable NGA's Geospatial Intelligence (GEOINT) mission collecting sciences, technology and tradecraft measuring and modeling the Globe to provide three-dimensional accuracy of every point in, on, or above the Earth.
Responsibilities
Primary responsibilities will involve coding, developing, integrating, and debugging software artifacts; writing validation tests against existing baselines to ensure integrity of the code during Agile development efforts; assisting with unit testing; programming; and developing in Python, Java Spring, or other frameworks.
Core Qualifications:
- Requires a Bachelor’s Degree and 4+ years of prior relevant experience or Masters with 2+ years of prior relevant experience; OR 6 years of experience in lieu of degree
- Must possess an active Top Secret Security Clearance with ability to obtain SCI post-hire
- Proficient in software development projects or software integration projects in a service-oriented environment (Cloud, SOA, Web-Services).
- Experience with GNU based compilers
- Experience programming in C++, Java, Typescript, and Bash
- Experience developing in the following frameworks: Spring/Gradle/OpenJDK, React/Node
- Demonstrated hands-on experience with relational and non-relational database systems such as Amazon RDS, Postgres
- Strong experience coding in Python
- Experience using GitLab for version control, CI/CD pipelines, and resource management
- Experience using Docker to package and run applications
- Experience with Web-related protocols and technologies, such as web servers, HTTP, SSL
- Familiar with AWS/Cloud technologies
- Strong communication skills both verbal and written.
- Team Collaboration tools (Jira, Confluence)
Preferred Qualifications
- Previous experience supporting the NGA customer.
- Proficient in AWS/Cloud technologies
Ability to work in a high-paced environment, multi-task (prioritize and manage), and work both independently and as a team.
Benefits
OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing.
Frequently Asked Questions
How do I apply for the Senior Full Stack Developer position at Open Systems Technologies Corporation?
Use the Apply button above to submit your application directly to Open Systems Technologies Corporation. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Full Stack Developer position at Open Systems Technologies Corporation located?
This position is based in Alexandria. Open Systems Technologies Corporation has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Full Stack Developer at Open Systems Technologies Corporation earn?
Open Systems Technologies Corporation has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Full Stack Developer role at Open Systems Technologies Corporation posted?
This role was posted on June 15, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Full Stack Developer role at Open Systems Technologies Corporation require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Open Systems Technologies Corporation lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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