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Mid-Level Backend Software Engineer
Leidos
Alexandria, Virginiafull-timePosted 4 days ago
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About this role
Description If you’ve been building your skills in backend development, object‑oriented programming, and mission‑driven engineering, and you’re ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. If you take pride in your craft, enjoy solving meaningful technical problems, and want your work to support a mission with visibility at senior levels, you’ll thrive here. We’re hiring a Backend Software Engineer to support a high‑visibility, data‑driven application used across the organization for analytics and reporting. You’ll help build and maintain core backend services, develop RESTful APIs, support data‑driven functionality, and contribute to ongoing system enhancements within a Linux‑based environment. Your work will directly support system reliability, performance, and data accuracy for mission stakeholders. Our primary development team operates out of Gaithersburg, MD, but we also support onsite engineers in Chantilly, VA, Alexandria, VA; Aurora, CO; St. Louis, MO; and Tucson, AZ, giving top talent multiple paths to join the mission. And while the requisition requirements may seem standard fare, the position is not; as it will join a high performing team that is changing the way digital engineering and mission operations intelligence is enabled for our customer. Why This Role Stands Out • High Impact: Your work supports a widely used application that drives real‑time decision‑making • High Visibility: Collaborate with engineering teams and mission stakeholders across programs • Career Growth: Build deeper expertise in backend development, API design, and scalable systems • Challenging Work: Contribute to complex backend features — not routine maintenance tasks Essential Responsibilities • Backend Development: Design, develop, test, and maintain backend application components using Java or Python • REST API Development: Develop and maintain RESTful services to suppo
Read the full description and requirements on the original posting.
Tailor your resume for this Mid-Level Backend Software Engineer role
Leidos and most employers screen applications with ATS software before a recruiter reads them, and they rank resumes that echo the language of the posting. To stand out for this role, mirror the exact skills, tools, and job title it uses, and make your location (Alexandria, Virginia) clear. For software & it roles like this one, recruiters commonly scan for:
- JavaScript
- Python
- React
- AWS
- SQL
- CI/CD
- Docker
- REST APIs
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Is the Mid-Level Backend Software Engineer role at Leidos remote?
This role is based in Alexandria, Virginia. Check the original posting for any hybrid or remote flexibility.
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Listing sourced via Leidos Careers. Tailr indexes public job postings so you can tailor your resume to them — applications happen on the employer's site.