Senior Application Developer & Foundational Services SME

Bigbear.ai; Washington (District of Columbia); Hybrid; USD 180,000 - 210,000; Full time

Job summary

BigBear.ai seeks a Senior Application Developer to support the Defense Intelligence Agency in Washington, DC, with hybrid SCIF work. You will modernize legacy systems, add features, and ensure coexistence with newer architectures.

You will lead core services, mentor junior developers, and tackle complex problems with high impact on mission software. Requires TS/SCI with polygraph and a strong background in TypeScript/Node.js stacks.

Qualifications

• Must have TS/SCI clearance with polygraph.
• Master’s degree with 8+ years of application or software development experience or Bachelor’s degree with 10+ years of experience as a substitute to a Master’s degree.

Responsibilities

• Provide senior-level development for legacy and existing systems, building new features, enhancements, and bug fixes.
• Lead as Foundational Services SME and mentor two mid-level developers; manage complex assignments with limited oversight and deliver solutions across diverse projects.

Skills

TS/SCI clearance

Polygraph

8+ years software development

Node.js with TypeScript

Distributed systems

Education

Master’s degree in CS/Engineering/related field

Bachelor’s degree in CS/Engineering

Tools

Node.js

TypeScript

SQL

PostgreSQL

Redis

ElasticSearch

MongoDB

Docker

OpenShift

NestJS

Express

Jest

GitLab CI Pipelines

Job description

BigBear.ai seeks a Senior Application Developer to support the Defense Intelligence Agency in Washington, DC, with hybrid SCIF work. You will modernize legacy systems, add features, and ensure coexistence with newer architectures.

You will lead core services, mentor junior developers, and tackle complex problems with high impact on mission software. Requires TS/SCI with polygraph and a strong background in TypeScript/Node.js stacks.