Associate Software Engineer - Node.js / Go (Golang)

CONCEPT SOLUTIONS LLC; Yorktown (VA); Remote; USD 85,000 - 120,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Life insurance

401(k) plan with matching

Job summary

Concept Solutions LLC seeks an Associate Software Engineer to work on a DoW mission-critical modernization program. You will contribute to backend services in Node.js/Go, with React front ends, and PostgreSQL databases, in a collaborative Agile environment.

The role supports on-call rotation, 40 hours per week, and two-week sprint cycles. Remote work with limited travel within the DC area is expected; candidates must be eligible for DoD clearance.

Qualifications

• 1+ year of backend software engineering experience using Node.js (JavaScript/TypeScript) or Go (Golang).
• At least 2 years of backend development experience using another strongly typed programming language, with demonstrated Node.js or Go projects.
• Active Secret security clearance or eligibility; DoD security requirements apply.

Responsibilities

• Develop, enhance, and maintain enterprise web applications supporting federal operations.
• Troubleshoot and resolve defects in React/Node.js and Go backend services.
• Develop, execute, and maintain automated tests to improve quality.
• Participate in software patching, maintenance cycles, and application releases.
• Support ongoing modernization and sustainment activities and on-call rotation.

Skills

Node.js

Go

Tools

React

PostgreSQL

Job description

Description Concept Solutions, LLC (CS) is seeking an Associate Software Engineer – Node.js / Go (Golang) to support a mission-critical application modernization and sustainment program for a Department of War (DoW) customer.

In this role, you will collaborate with experienced software engineers to develop, enhance, and maintain enterprise web applications that support critical federal operations. This is an excellent opportunity for an early-career developer to expand their technical expertise in Node.js, Go, and modern web technologies while contributing to a collaborative Agile development environment.

Troubleshoot and resolve software defects in web applications using React front ends and Node.js and Go backend services under the guidance of senior engineers.

Develop, execute, and maintain automated tests to improve application quality, functionality, and reliability.

Participate in software patching, maintenance cycles, and application releases.

Collaborate with senior engineers and development team members to support ongoing application modernization and sustainment activities.

Transition into the team's on-call support rotation following onboarding and training.

At least 1 year of backend software engineering experience using Node.js (JavaScript/TypeScript) or Go (Golang); At least 2 years of backend development experience using another strongly typed programming language, with demonstrated Node.js or Go projects.

Experience with PostgreSQL databases.

Active Secret security clearance.

Location: Remote

Schedule: Full-time, 40 hours per week, Monday through Friday, with core hours of 9:00 a.m. The team operates in two-week sprints, with a customer demonstration at the end of each sprint.

Travel: 0–10%, within the Washington, DC metropolitan area.

Candidates must be eligible to obtain and maintain a DoW security clearance. An active Secret clearance or higher is strongly preferred and may allow for an earlier start.

We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors.

For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services.

Over two decades of experience across over $300 million in contract awards supporting critical FAA programs

Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies

We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting.

Concept Solutions is an Equal Opportunity Employer, and we value workplace diversity. We invite resumes from all interested parties and consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, sexual preference, personal appearance, family responsibility, the presence of a non-job-related medical condition or physical disability, matriculation, political affiliation, veteran status, or any other legally protected status. Concept Solutions is a VEVRAA federal contractor, and we request priority referral of veterans for available positions.