Mid Full Stack Engineer (4733)

SMX; Broomfield (CO); On-site; USD 124,000 - 206,000; Full time

Job summary

SMX in Colorado is seeking an experienced Mid‑Senior Backend Engineer to implement responsive design principles, optimize applications for speed and scalability, and troubleshoot issues to ensure peak performance.

The role requires DoD standards adherence, DoD project experience is highly desirable, and collaboration using Gitlab for project management. This is a full‑time position with strong teamwork and independent work expectations.

Qualifications

• Secret clearance required.
• Backend development experience with Python.
• Experience with Gitlab for project management.
• DoD project experience is highly desirable.
• Strong problem-solving and attention to detail.
• 5+ years of experience in relevant roles.

Responsibilities

• Implement responsive design principles for cross‑device use.
• Optimize applications for speed and scalability.
• Troubleshoot and debug to ensure performance.
• Stay up‑to‑date with industry trends and technologies.
• Utilize Gitlab for project management and tracking.
• Apply DoD standards to ensure compliance and security.

Skills

Secret clearance

Python

Gitlab

Problem-solving

Communication & collaboration

Independent & team work

5+ years experience

Learning & staying current

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Gitlab for project management

CI/CD practices

Version control (Git)

Job description

Essential Duties & Responsibilities

• Implement responsive design principles to ensure applications work on various devices.
• Optimize applications for maximum speed and scalability.
• Troubleshoot and debug issues to ensure optimal performance.
• Stay up-to-date with the latest industry trends and technologies.
• Utilize Gitlab for project management and tracking.
• Apply DoD standards and protocols to ensure compliance and security.

Required Skills & Experience

• Secret clearance required.
• Experience with back‑end development, including Python.
• Familiarity with version control systems such as Gitlab.
• Excellent problem‑solving skills and attention to detail.
• Ability to work independently and as part of a team.
• Strong communication and collaboration skills.
• Experience with DoD projects is highly desirable.
• Proficiency in using Gitlab for project management.
• A passion for learning and staying current with industry trends.
• 5+ years' experience.

Desired Skills & Experience

• Bachelor's degree in Computer Science, Engineering, or a related field.
• Experience with Agile development methodologies.
• Familiarity with CI/CD (Continuous Integration/Continuous Delivery) techniques.
• Familiarity with C++.

Application Deadline: December8, 2025

Proposed Salary: $123,800 USD – $206,300 USD

SMX is an Equal Opportunity employer including disabilities and veterans.

Selected applicant may be subject to a background investigation and/or education verification.

SMX does not sponsor a new applicant for employment authorization or immigration related support for this position (i.e. H1B, F‑1 OPT, F‑1 STEM OPT, F‑1 CPT, J‑1, TN, E‑2, E‑3, L‑1 and O‑1, or any EADs or other forms of work authorization that require immigration support from an employer).

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Industries

IT Services and IT Consulting

Referrals increase your chances of interviewing at SMX by 2x.