Backend Developer 810
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 6 November 2026.
About the role
Freedom Technology Solutions Group is looking to add a Backend Developer based in Washington D.C, Annapolis Junction, or Reston, VA. As a Senior Backend Developer you will be supporting an IC Customer working on mission driven applications.
Candidates in this role will:
- Design, develop, and maintain backend functionality within applications using Python, Docker, Kubernetes, Opensearch and PostgreSQL.
- Develop and maintain backend services and REST APIs, including request validation, error handling, and authentication and authorization integration.
- Use Pydantic for data validation and SQLAlchemy for database access and object-relational mapping in Python services.
- Design and maintain PostgreSQL schemas, queries, indexes, and database migrations, with attention to performance and data integrity.
- Build and maintain Docker images and deploy, configure, and troubleshoot applications in OpenShift.
- Investigate and resolve production issues across the user interface, backend services, database, and application deployment.
- Work with customers, product owners, and other stakeholders to clarify requirements, identify dependencies, and estimate implementation effort.
- Participate in technical design and code reviews, write automated tests, and maintain technical documentation.
- Mentor developers and collaborate with operations and security teams to support reliable application delivery.
- Deep expertise of Python and API design
- Familiarity with Software development within the Department of War.
- Familiarity with Linux environments and Kubernetes concepts.
- Experience configuring CI/CD pipelines and automating application deployments.
- Experience improving application security, accessibility, performance, and reliability.
- Experience working in an Agile development environment and coordinating with product, operations, and security teams.
Qualifications:
- 9 Years of experience in Software or Systems Engineering roles or a highly related field of work with similar scope and responsibilities.
- A Bachelor’s degree may be substituted for 4 years of experience and a Master’s Degree may be substituted for 6 years of experience.
- TS/SCI Clearance with Active CI Polygraph
- Strong experience developing backend services and REST APIs
- Experience developing and maintaining backend applications and services using Python.
- Proficiency with PostgreSQL, including relational data modeling, SQL, schema migrations, indexing, and query optimization.
- Understanding of OpenSeach data structures, indexing and querying.
- Hands-on experience with Docker, including writing Dockerfiles, building images, and troubleshooting containers.
- Strong communication skills and the ability to translate business and customer needs into clear technical requirements
What’s in It for You?
Flexible work environment
A team mentality – work with friendly, like-minded professionals
Work with innovative, cutting edge technologies
Enjoy extremely competitive compensation and benefits
A work-life balance you can count on
Opportunities to grow and advance your career on our dime
The Benefits You Get with Freedom
Amazing benefits including matching 401k, fully paid medical, and more
Generous paid time off – including paid site closure days
Competitive salary offerings
Paid training and tuition reimbursement
Referral bonuses
Fully paid life and disability
Annual logo wear allowance
Freedom Technology Solutions Group's standard text
Company sponsored events (game nights, holiday party, summer party, happy hours)
Interested in learning more about Freedom and our culture? Contact us today! We’re constantly hosting hiring events in our office and elsewhere, to help you get a sense of what life is like at Freedom before joining the team.
As an Equal Opportunity Employer, we do not discriminate on the basis of race, color, religion, sex, age, marital status, disability or veteran status
Applicant Federal & E-Verify Postings
Freedom Technology Solutions Group's standard text
VEVRAA Federal Contractor
Accessibility: If you need an accommodation as part of the employment process, please contact Human Resources at
Phone: 410-290-9035
Email: recruiting@goftsg.com
Freedom Technology Solutions Group's standard text
Equal Opportunity Employer, including disabled and veterans.
If you want to view the EEO Law poster, please choose your language: English - Spanish - Arabic - Chinese
If you want to view the EEO Law Supplement poster, please choose your language: English - Spanish - Chinese
If you want to view the Pay Transparency Policy Statement, please click the link: English
What this role asks for
Particular to this role
OpenSearch · OpenShift · Pydantic · REST · SQLAlchemy
Rare in Freedom Technology Solutions Group's other 97 open postings.
Standard for backend roles
CI/CD · Kubernetes · PostgreSQL · Python
Common in backend postings at any company.
77% of this description is written for the role. The rest is Freedom Technology Solutions Group's standard text, folded away below.
Compared with Freedom Technology Solutions Group's other open jobs.
The team: SGIS HIRES STEADILY
This role is one of 27 open in SGIS. 4 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
AWS (15 of 27), Python (15 of 27), Linux (14 of 27), CI/CD (12 of 27), Agile (11 of 27), Docker (11 of 27), Kubernetes (11 of 27)
OTHER ROLES ON THIS TEAM
- AI Engineer 811 posted Nov 6
- SI Engineer 800 posted Oct 21
- Solutions Architect 799 posted Oct 21
- Cybersecurity Engineer 793 posted Oct 2
- Firewall Engineer 792 posted Oct 2
- Data Scientist 777 posted Sep 23
- Business Process Analyst 752 posted Aug 6
- Image Analyst 748 posted Jul 31
- Full Stack Developer 729 posted Jul 17
- Data Scientist 728 posted Jul 17
- Machine Learning Engineer 727 posted Jul 17
- Network Engineer 719 posted Jul 14
- Cyber Data Analysis Engineer 718 posted Jul 14
- Cybersecurity Implementation Engineer 717 posted Jul 14
- Cross Domain Engineer 715 posted Jul 14
- Platform Engineer 700 posted Jul 6
- Senior Software Engineer 622 posted Mar 25
- Mid Level Software Engineer 568 posted Oct 9
- Senior Software Engineer 566 posted Oct 9
- Endpoint Security Services posted Sep 16
- System Engineer 504 posted May 21
- Software Developer 503 posted May 20
- Security Officer 502 posted May 20
- Information Systems Security Engineer 501 posted May 20
- Test Engineer 265 posted Mar 22
- Cyber Security Engineer 235 posted Feb 13
From the team and dates on Freedom Technology Solutions Group's own job board.
Similar jobs
- Backend Developer Mid level at ELEVI Associates
Shares 13 skills: SQLAlchemy, Pydantic, OpenShift… · same city - Software Engineer TS/SCI Polygraph at Leidos
Shares 10 skills: OpenShift, PostgreSQL, REST… · Senior level · same city - Systems Engineering Senior Associate at DTCC
Shares 9 skills: OpenShift, PostgreSQL, REST… · Senior level · same country - Senior Full Stack Engineer (Evergreen) at Vynca
Shares 8 skills: SQLAlchemy, Pydantic, PostgreSQL… · Senior level · same country - Senior Software Engineer, Python at Telnyx
Shares 8 skills: SQLAlchemy, Pydantic, PostgreSQL… · Senior level · same country - AI Engineer 811 at Freedom Technology Solutions Group
Also at this company
More jobs like this
Is this your posting? Email info@careerholo.com to have it removed.