Full Stack Engineer - Sr (TS/SCI with CI Polygraph Required)

DeNOVO Solutions, LLC; Aurora (CO); On-site; USD 155,000 - 200,000; Full time

Benefits offered by this job

Competitive wages

Medical, dental, and vision premiums —

401k with 6% match

Holidays (11)

Paid Time Off

Training and certification assistance

HomeFundIt down payment match

Job summary

DeNOVO Solutions, LLC is seeking a Senior Full Stack Engineer to lead the design and delivery of scalable applications. You will architect backend services with Node/Express, design NiFi data flows, and enforce testing standards to ensure performance and reliability across the stack.

You will mentor junior engineers, review code for quality, and drive best practices for maintainable software delivery while collaborating with cross-functional teams in a mission-driven environment.

Qualifications

• 10–15 years of related professional experience.
• Bachelor’s degree or higher in computer science or related discipline (or substitutions).
• Clearance: TS/SCI with Counter-Intelligence Polygraph.

Responsibilities

• Lead design and development of scalable full-stack features.
• Architect backend services and API layers with Node/Express.
• Design robust NiFi flows for messaging and data orchestration.
• Establish and maintain test coverage using Vitest, Cypress, and Playwright.
• Drive code quality and enforce testing standards across the team.
• Mentor junior developers and review code for maintainability and performance.

Skills

JavaScript

Vue.js

Node.js

MongoDB

NiFi

Vitest

Cypress

Playwright

Git

GitHub Actions

Education

Bachelor’s degree or higher in Computer Science or related discipline

Tools

NiFi

GitHub Actions

MongoDB

Vitest

Cypress

Playwright

Job description

Position: Full Stack Engineer – Sr

Location: Aurora, CO

Clearance: TS/SCI with Counter-Intelligence Polygraph

Lead the Design and Delivery of Scalable Full-Stack Applications

DeNOVO Solutions is seeking a Full Stack Engineer – Senior to lead the design and development of scalable applications ensuring high performance and reliability across the full stack. This role architect's backend services and APIs with Node/Express, designs advanced NiFi flows for data orchestration, and enforces comprehensive testing standards. The engineer mentors junior developers, drives code quality, and promotes best practices for maintainable and efficient software delivery.

Why You’ll Love This Role

• Shape the Architecture: Define scalable backend and API structures that drive mission success.
• Promote Excellence: Lead code reviews and testing standards to ensure performance and reliability.
• Mentor and Grow Talent: Guide junior engineers while improving team development processes.

A Day in the Life

• Lead design and development of scalable full-stack features.
• Architect backend services and API layers with Node/Express.
• Design robust NiFi flows for messaging and data orchestration.
• Establish and maintain test coverage using Vitest, Cypress, and Playwright.
• Drive code quality and enforce testing standards across the team.
• Mentor junior developers and review code for maintainability and performance.

What You Bring To The Table

• Advanced proficiency in JavaScript, Vue.js, and Node.js (middleware and API design).
• Strong experience with MongoDB (aggregation and indexing).
• Expertise in NiFi (error handling, flow templates).
• Deep familiarity with testing tools: Vitest (unit/mocking), Cypress (component/UI), Playwright (E2E).
• Hands-on experience with Git and CI pipelines (e.g., GitHub Actions).

What You Need

• Experience: Ten (10) to fifteen (15) years of related professional experience supporting programs and contracts of similar scope, type, and complexity.
• Education: Bachelor’s degree or higher in a computer science or related discipline (e.g., Statistics, Mathematics, Programming, or Systems Engineering). In lieu of a Bachelor’s degree, two (2) additional years of related experience may be substituted.
• Substitution of Experience: A Master’s degree from an accredited college or university in a related engineering discipline (e.g., Statistics, Mathematics, Operations Research, Cyber Security, Engineering or Computer Science) may be substituted for two (2) years of experience. A PhD from an accredited college or university in a related engineering discipline may be substituted for four (4) years of experience.
• Clearance: TS/SCI with Counter-Intelligence Polygraph

Why Join DeNOVO Solutions?

At DeNOVO Solutions, we make improving the competitive position of our customer paramount in importance and work collaboratively to ensure the best service possible. DeNOVO Solutions provides cleared personnel and cost competitive solutions to our customers. We strive to be the leader amongst small businesses in the Intelligence Community and provide personnel with talent & skills equal to the larger companies. As a Minority-Owned and Service-Disabled Veteran-Owned Small Business (MO/SDVOSB), we are dedicated to providing the best technical and professional services throughout the Intelligence Community (IC).

Our benefits package for full-time employees includes:

• Competitive Wages – This position’s annualized pay range is $155,000.00 to $200,000.00
• Medical, Dental, and Vision Premiums 100% Employer Paid for you and your legal dependents or plus up, cost split plan.
• DeNOVO Paid Health Reimbursement Account (HRA)
• 401k with 6% Match
• 11 Paid Federal Holidays
• 120 hours of Paid Time O…
• Company Outings and Trips
• Tuition Reimbursement, Skillset Training, and New/Renewed Certification assistance
• HomeFundIt Company Down Payment Match – Employer match towards the down payment of buying a new home

DeNOVO Solutions is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, marital status, veteran status, sexual orientation, genetic information or any other protected characteristic under applicable law.