Senior Software Developer

Parsons Corporation•Reston, VA

8d•$148,300 - $266,900

About The Position

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible. Parsons is looking for an amazingly talented Senior Software Developer to join our team! In this role you will get to design, develop, and support mission-critical information systems around the world.

Requirements

Bachelors degree and 10 years of experience in Software Engineering and/or Development. Alternatives are Masters and 8 years or a Phd and 6 years
Strong proficiency in Java, Scala and/or C/C++ with production-grade development experience.
Experience building and supporting systems that are distributed, high-availability, or operationally critical.
Working knowledge of relational databases (PostgreSQL preferred) and/or NoSQL databases (MongoDB preferred).
Experience with CI/CD pipelines (GitLab CI/CD strongly preferred) and modern development workflows (code review, branching, tagging, release management).
Ability to troubleshoot production issues using logs, metrics, and structured debugging approaches.
Strong written communication skills: able to produce clear design notes, runbooks, and implementation plans.
Top Secret minimum
Domestic and/or international project travel may be required.

Nice To Haves

Active TS/SCI w/ Polygraph preferred.
Experience with systems deployed to remote sites with intermittent connectivity.
Experience with migration/compatibility support across major version transitions e.g. Postgres to MongoDB.
Familiarity with: secure communications patterns (TLS, certificates, key rotation)
Familiarity with: message queues/event-driven patterns
Familiarity with: performance profiling (CPU, memory, DB query optimization)
Experience collaborating with field engineering and network operations teams.
Exposure to ELK stack usage patterns for operational troubleshooting and analytics.

Responsibilities

Develop, enhance, and sustain production services and components written in Java and C/C++
Author and maintain interface documentation (schemas, contracts, versioning strategy) and support integration testing
Participate in on-call rotation or operational support escalations as required.
Collaborate with Network Ops, Infrastructure, and Field Engineering teams to diagnose end-to-end failures across distributed environments.
Develop and maintain build/deployment automation using GitLab CI/CD
Write unit, integration, and regression tests for critical services and interfaces
Follow configuration management and change control practices required for distributed production systems.
Rapidly troubleshoot and correct software discrepancies to maximize system availability