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Senior Software Developer; Backend​/Middleware

Job in Springfield, Fairfax County, Virginia, 22161, USA
Listing for: teKnoluxion Consulting LLC
Full Time position
Listed on 2025-12-29
Job specializations:
  • Software Development
    DevOps
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Developer (Backend/Middleware)

Overview Location:
Springfield, VA

Clearance Required: Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly is required upon application for initial consideration
** We are not able to upgrade or sponsor clearances**

Work schedule: Ability to workone day a weekon-site in secure government environments required.

At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, Dev Sec Ops , systems engineering, software development, and operational support. Bcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions.

Do you want to join a team that is building tailored technical solutions to modernize our government’s mission and our client’s business? Do you have a desire to change how people work? Are you interested in helping to protect our nation’s cyber interests? Join our growing team supporting the NGA customer missions as a Senior Software Developer (Backend/Middleware)
* contingent upon award*

Responsibilities What you get to do every day:
  • Lead the design and development of scalable, high-performance backend services and middleware solutions supporting mission-critical applications in secure government environments.
  • Architect and implement distributed systems using messaging frameworks such as Kafka, Rabbit

    MQ, or Pulsar to enable real-time data processing and event-driven architectures.
  • Develop and maintain

    RESTful APIs and microservices using Python and SQL withfocuson security, performance, and reliability.
  • Design and implement agentic AIsolutionsleveragingframeworks such as Agent OS, MCP,Lang Graph, andLangChainto create intelligent, autonomous application capabilities.
  • Lead implementation of robust authentication and authorization mechanisms and identity management solutions ensuring compliance with security requirements.
  • Architect deployment strategiesincludingblue/green deployments, canary releases, and feature flag implementations to enable zero-downtime releases.
  • Optimize data pipelines and application performance through efficient SQL query design, data transformation strategies, and integration with Postgre

    SQL-based databases and data warehouses.
  • Mentor development team membersonbest practices for code quality, testing methodologies, troubleshooting techniques, and software architecture patterns.
  • Design and implement comprehensive testing strategies including automated unit, integration, and end-to-end testing harnesses.
  • Collaborate with database administrators, Dev Ops engineers, and stakeholders to deliver integrated solutions within project timelines and constraints.
Qualifications

Clearance Required: Active TS clearance (with SCI Eligibility) and eligibility to obtain CI Poly
** We are not able to upgrade or sponsor clearances**

Education/

Experience:

  • Bachelor's Degree or equivalent combination of education, technical training, or work/military experience
  • 8+ years of professional software development experience with at least 5 years in backend/middleware development
Required Skills:
  • Expert-levelproficiencyin Python with demonstratedability to write clean, maintainable, and highly efficient code
  • Advanced SQL skills including complex queries, CTEs, window functions, query optimization, and stored procedure development
  • Extensive experience working with relational databases and data warehouses, particularly Postgre

    SQL and its variants (AWS RDS, Aurora, Redshift, Timescale DB, Enterprise DB, etc.)
  • Strong understanding of database design, indexing strategies, and performance optimization techniques
  • Proven track record designing and implementing secure RESTful APIs with proper authentication and authorization patterns
  • Solid experience with Linux command line administration, particularly RHEL and Rocky Linux distributions
  • Experience with advanced deployment strategies…
Position Requirements
10+ Years work experience
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