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Contract Backend Developer Jobs in Colorado (NOW HIRING)

CosQube INC

Scala Developer

Denver, CO · On-site

Denver, US Duration:12+ Months Contract with Extension Employment Type: C2C/C2H/W2 Interview ... Implement backend systems using frameworks like Spring Boot, Akka HTTP, or Play * Ensure reliable ...

DAT

Staff Backend Software Engineer

Denver, CO · On-site

Work closely with cross-functional teams, including product managers, DevOps, and front-end ... Strong understanding of microservice and API contracts * Fluency with observability and on-call ...

DAT

Staff Backend Software Engineer

Denver, CO · On-site

Work closely with cross-functional teams, including product managers, DevOps, and front-end ... Strong understanding of microservice and API contracts * Fluency with observability and oncall ...

Cymertek

Full Stack Developer

Aurora, CO · On-site

SIMILAR CAREER TITLES Software Engineer, Backend Developer, Frontend Developer, Web Developer ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

Java, Scala, Python Developer

Aurora, CO · On-site

Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ... Build APIs and backend services to support applications * Optimize code for performance and ...

Cymertek

React.js / Node.js Developer

Aurora, CO · On-site

SIMILAR CAREER TITLES Frontend Developer, Backend Developer, Full Stack Developer, JavaScript ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

SIGINT Software Developer

Aurora, CO · On-site

... Developer, Backend Developer, Data Processing Engineer, etc. DEGREE (Level Desired) Bachelor ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

Software Developer

Aurora, CO · On-site

SIMILAR CAREER TITLES Software Engineer, Full Stack Developer, Backend Developer, Frontend ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

API Developer

Aurora, CO · On-site

SIMILAR CAREER TITLES Backend Developer, API Engineer, Web Services Developer, Integration ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

Java / Spring Developer

Aurora, CO · On-site

$52 - $67.25/hr

SIMILAR CAREER TITLES Java Developer, Spring Boot Developer, Backend Developer, Full Stack Java ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

Cymertek

C / C++ / Java Software Developer

Aurora, CO · On-site

$50 - $67.25/hr

SIMILAR CAREER TITLES Software Engineer, Backend Developer, Full Stack Developer, Systems Developer ... Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ...

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All JobsContract Backend Developer JobsContract Backend Developer Jobs in Colorado

Contract Backend Developer information

What are the key skills and qualifications needed to thrive as a contract backend developer, and why are they important?

To thrive as a Contract Backend Developer, you need strong programming skills in languages like Python, Java, or Node.js, along with experience in database management and API development, supported by a relevant degree or proven project experience. Familiarity with frameworks (such as Django, Spring, or Express), cloud services (like AWS or Azure), and version control systems (e.g., Git) is typically expected. Excellent problem-solving abilities, strong communication, and the ability to quickly adapt to new codebases and team environments set top contractors apart. These skills and qualities are crucial for delivering reliable, scalable backend solutions and integrating smoothly into diverse project teams.

What are some common challenges faced by contract backend developers when joining a new project?

Contract Backend Developers often encounter challenges such as quickly understanding existing codebases, adapting to different tech stacks, and aligning with the team's development practices. Since contract roles usually have tight deadlines, developers must rapidly familiarize themselves with project documentation and workflows. Effective communication with team members and proactive clarification of requirements are essential to ensure smooth integration and successful project outcomes.

What is a contract backend developer?

Contract backend developers are professionals hired on a temporary or project basis to build and maintain the server-side logic, databases, and APIs that power web or mobile applications. They work behind the scenes to ensure that applications function smoothly, handle data efficiently, and communicate effectively with front-end systems. Unlike full-time employees, contract backend developers typically work for a set duration or on specific projects, offering flexibility to both clients and developers. They often bring specialized expertise in programming languages such as Python, Java, Node.js, or Ruby, and may work remotely or on-site depending on the contract terms.
What are the most commonly searched types of Backend Developer jobs in Colorado? The most popular types of Backend Developer jobs in Colorado are:
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Contract Backend Developer jobs near you

Back End Software Developer - Clearance Required

LMI

Colorado Springs, CO • On-site

$101K - $174K/yr

Other

Posted 20 days ago

Job description

Overview
LMI is seeking a Senior Back-End Software Developer to support the development and enhancement of LMI's Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR®. In this role, you will focus on implementing backend features and services that enable analysts, data scientists, and engineers to conduct complex analytical studies in the space domain.
You will work closely with multidisciplinary teams to translate analytical requirements into scalable, performant backend capabilities, including APIs, data pipelines, and integration services that support modeling, simulation, and trade space analysis.
This position is ideal for a developer who enjoys working at the intersection of software engineering and analytical problem-solving, and who can rapidly deliver capabilities in support of evolving mission needs.
On site support or candidates local to Colorado Springs are preferred; remote options are availalbe for the ideal candidate.
LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.
Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.
Responsibilities
  • Develop and maintain backend services and application logic that support modeling, simulation, and analytical workflows within RAPTR®
  • Translate analyst and data scientist needs into functional software features, including data ingestion, scenario configuration, and results management
  • Design and implement APIs and service layers that enable interaction between the platform, analytical tools, and external systems
  • Build and manage data pipelines and storage solutions to support large-scale analytical runs and scenario outputs
  • Ensure efficient handling of high-volume simulation data, including performance optimization and scalability
  • Collaborate closely with trade space analysts, data scientists, and systems engineers to ensure backend capabilities align with analytical objectives
  • Integrate backend services with front-end interfaces and visualization tools
  • Implement security best practices to protect sensitive and mission-critical data
  • Participate in code reviews, testing, and debugging to ensure high-quality, reliable software
  • Support integration with engineering artifacts such as CONOPs, system architectures, interfaces, and data models

Qualifications
Required Qualifications
  • Bachelor's degree in Computer Science, Computer Engineering, or related technical field
  • 5-10 years of experience in backend software development (senior-level proficiency without over-constraining the candidate pool)
  • Proficiency in one or more programming languages such as Python, Java, or Node.js
  • Experience designing and implementing RESTful APIs and service-oriented architectures
  • Experience with relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB)
  • Experience building or supporting data-intensive applications or analytical platforms
  • Familiarity with backend frameworks such as Django, Flask, or Spring Framework
  • Strong understanding of software design principles, performance optimization, and scalable system design
  • Experience with version control systems such as Git
  • Ability to work in a fast-paced, evolving environment with loosely defined requirements
  • Strong communication and collaboration skills

Preferred Qualifications
  • Experience supporting modeling & simulation, wargaming, or analytical platforms
  • Familiarity with cloud environments such as Amazon Web Services or Microsoft Azure
  • Experience building data pipelines, ETL processes, or distributed data systems
  • Exposure to space domain applications or defense-related systems
  • Experience working with data scientists or integrating machine learning workflows
  • Knowledge of containerization (e.g., Docker) or orchestration tools
  • Active TS/SCI clearance

Security Clearance Requirements
Candidate must be eligible to obtain a TS/SCI clearance and willingness to obtain a CI Poly. Candidates with an active TS/SCI or TS with SCI eligibility will be given preference.
Target salary range: $101,144 - $174,591
Disclaimer: The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.
#LI-SH1
Applicants must meet eligibility requirements for a U.S. Government security clearance. Only US Citizens are eligible for a security clearance. For this position, LMI will only consider applicants with security clearances or applicants who are eligible for security clearances, due to the nature of the work.
Job Locations
US-CO-Colorado Springs

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