Role Overview
Set of X is hiring a mid-level Backend Software Engineer. This is a full-time role in Annapolis Junction. Part of Set of X's Frontend hiring, posted last week. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
WE ARE HIRING OWNERS
Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership.
Because who you work with matters.
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You will act as a senior backend developer for a new system being developed from the ground up to provide workflow automation, modernization, oversight, and mission cognizance for mission critical work roles. You will provide input into design, development, and integration of a complex web-based application. You will be working on a mixed skillset team consisting of frontend, backend, and full stack developers as well as data analysts and a UX designer in close collaboration with the mission customer.
Responsibilities
- Work with a multi-disciplinary team to gather, document, and implement customer requirements.
- Perform backend development to support system features based on customer requirements.
- Assist with database and data model design and implementation.
- Assist with automation of development tasks and implementation and maintenance of CI/CD workflows and development best practices such as testing.
- Continually incorporate feedback from system owners and end users.
Required Skills
- Experience with Java microservice development using Spring Boot.
- Familiarity with SQL and NoSQL databases (PostGres, MySQL, Elasticsearch, MongoDB, etc.).
- Experience with automated testing and CI/CD workflows (GitLab CI, Jenkins, etc.).
- Familiarity with Git.
- Familiarity with Atlassian tools (Jira, Confluence).
- Experience with containerization and container orchestration (Docker, Kubernetes, Rancher)
Desired Skills
- Service containerization and deployment with Docker/Kubernetes.
- Experience with production CNO capabilities and operations.
- Management of database systems (MongoDB, SQL, Elasticsearch, etc.).
Education/Experience:
12 yrs., B.S. in a technical discipline or 4 additional yrs. in place of B.S.
Clearance:
TS/SCI clearance with polygraph is required.
Total Compensation Package
We offer a comprehensive compensation package designed to support your well-being and professional growth. Our competitive base salary is complemented by an extensive benefits program, including:
- Health, Dental, and Vision Insurance: Comprehensive coverage to keep you and your family healthy.
- Life and Disability Insurance: Peace of mind with financial protection for you and your loved ones.
- 401(k) Plan: No personal investment required to benefit from a generous employer contribution, allowing you to maximize your take-home pay.
- Paid Time Off: Enjoy time away from work to recharge.
- Technology Refresh: Upgrade your devices regularly, or opt for a year-end bonus if you don’t need new tech.
- Training and Professional Development: A $5,250 annual budget for ongoing education, certifications, and professional memberships. Or use this annual benefit to repay a student loan tax-free.
For a full overview of our benefits, please visit our benefits tab.
Additional Perks and Benefits
- Stock Plan: Become an equity owner with a yearly stock grant—let's build the future together.
- Flex Leave and Exchange Plan: Take up to 8 weeks off for a strong work-life balance or sell back unused time for double the value!
- Virtual Office Compensation: Monthly reimbursement for cell phone and internet services.
- Fringe Benefit Mall: Choose from perks like Uber rides, a beer of the month club, Amazon Prime, and Hello Fresh—whatever suits you best!
- Profit-Sharing Cash Bonus: Share in the company’s success with an end-of-year cash bonus.
- Referral Bonus: Help us grow by bringing in top talent and earn a bonus for each successful referral.
Frequently Asked Questions
How do I apply for the Backend Software Engineer position at Set of X?
Use the Apply button above to submit your application directly to Set of X. 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 Backend Software Engineer position at Set of X located?
This position is based in Annapolis Junction. Set of X has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Backend Software Engineer at Set of X earn?
Set of X 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 Backend Software Engineer role at Set of X posted?
This role was posted on June 1, 2026 (7 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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