Full Stack Engineer - Mid (TS/SCI with CI Poly Required)

DeNOVO Solutions, LLC; Aurora (CO); On-site; USD 130,000 - 140,000; Full time

Benefits offered by this job

Employer health insurance

401k with match

Paid holidays

Paid time off (PTO)

Tuition reimbursement

Employee outings

Job summary

DeNOVO Solutions, LLC is seeking a Mid-level Full Stack Engineer to design, develop, and maintain scalable applications using Vue, Node/Express, and MongoDB. The role emphasizes modular API design, NiFi flow integration, and thorough testing within a CI-friendly workflow.

The ideal candidate has 5–10 years of experience, a CS-related degree, and active TS/SCI with Counter-Intelligence Polygraph clearance. Join a team that values performance, reliability, and secure solutions.

Qualifications

• 5–10 years of related professional experience in full-stack development.
• Bachelor’s degree or higher in computer science or related discipline; substitutions allowed for experience.
• Active TS/SCI with Counter-Intelligence Polygraph clearance.
• Experience with Vue, Node/Express, MongoDB, and API design.

Responsibilities

• Develop and maintain full-stack features across frontend and backend.
• Design modular APIs and MongoDB schemas.
• Implement NiFi flows for messaging and integration.
• Write unit and integration tests; ensure CI readiness.
• Optimize performance and contribute to engineering standards.

Skills

Python

JavaScript

Vue.js

Node.js

Express.js

MongoDB

NiFi

Testing (Vitest/Cypress/Playwright)

Git/Postman

Education

Bachelor’s degree in Computer Science or related discipline

Master’s or PhD substitutions for experience

Tools

NiFi

Vitest

Cypress

Playwright

Git

Postman

Job description

Position: Full Stack Engineer – Mid
Location: [Insert Location]
Clearance: TS/SCI with Counter-Intelligence Polygraph

Design and Build Scalable Full-Stack Solutions

DeNOVO Solutions is seeking a Full Stack Engineer – Mid to design, develop, and maintain scalable applications across the full technology stack using Vue, Node/Express and MongoDB. This role focuses on building modular APIs, implementing NiFi flows for messaging and integration, and writing comprehensive unit and integration tests. The engineer will optimize both frontend and backend performance while supporting CI processes and contributing to continuous improvement of team standards.

Why You’ll Love This Role

• Work Across the Stack: Build, maintain, and refine end-to-end features in both frontend and backend systems.
• Innovate and Integrate: Apply NiFi flow design and API optimization to strengthen data flow efficiency.
• Collaborate and Improve: Help shape continuous integration practices and contribute to the team’s engineering standards.

A Day in the Life

• Develop and maintain full-stack features using Vue, Node/Express, and MongoDB.
• Consume and create APIs focused on modular and scalable design.
• Implement and troubleshoot NiFi flows for messaging and API integrations.
• Write and maintain unit and integration tests across the stack.
• Optimize frontend performance and backend logic for efficiency.
• Participate in CI processes and contribute to team development standards.

What You Bring To The Table

• Experience with Python and JavaScript (intermediate+), Vue.js, Node.js, Express.js, and MongoDB (CRUD + schema familiarity).
• Working knowledge of NiFi for flow building and system integration.
• Proficiency with testing tools such as Vitest, Cypress, and Playwright.
• Familiarity with Git for version control and Postman for API validation.

What You Need

• Experience: Five (5) to ten (10) 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: Active 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 $130,000.00 to $140,000.00
• 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 Off (PTO)
• 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.