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Contract Frontend Developer Jobs in Colorado (NOW HIRING)

Infojini Inc

Sr. Web Developer

Denver, CO

... contract position. Please refer someone else if you are not available at this time or you are not ... Experience in crafting user interfaces, front-end scalability and performance * Optional experience ...

Cymertek

Java / Spring Developer

Aurora, CO · On-site

$52 - $67.25/hr

Most contracts allow additional experience (4-5 years) in lieu of a Bachelor's Degree. Some ... Familiarity with frontend technologies (e.g., Angular, React) * Proficiency in performance testing ...

InstantServe LLC

Java Developer

Denver, CO · On-site

$52.50 - $68/hr

... front-end work, cloud deployments, and DevOps workflows. Experience with AWS, GitLab CI/CD ... Work Schedule Monday - Friday Standard business hours Contract Duration Start Date: July 27, 2026 ...

tuffshed

Sr Software Developer

Center, CO

$47.75 - $63.25/hr

Building and improving APIs and event-based schemas, specs, and contracts. * Building and improving ... Building and improving user-friendly front-end interfaces using React. * Ensuring compatibility of ...

tuffshed

Sr Software Developer

Center, CO · On-site

$47.75 - $63.25/hr

Building and improving APIs and event-based schemas, specs, and contracts. * Building and improving ... Building and improving user-friendly front-end interfaces using React. * Ensuring compatibility of ...

ENSCO, Inc.

Software Developer

Colorado Springs, CO · On-site

$91K - $161K/yr

Build and integrate frontend user interfaces with backend services and APIs. Contribute to system ... None Position Contingent Upon Contract Award: Yes Salary Range $91,353.60-$161,549.65 USD REAL ID ...

Tuff Shed

Sr Software Developer

Denver, CO · On-site

$110K - $150K/yr

Building and improving APIs and event-based schemas, specs, and contracts. * Building and improving ... Building and improving user-friendly front-end interfaces using React. * Ensuring compatibility of ...

Kharon

Senior Software Engineer

Denver, CO · On-site

$160K - $200K/yr

Collaborate cross-functionally with product owners, frontend engineers, QA, and architects - serving as a clear communicator who can explain service design, API contracts, and architectural decisions ...

Compri Consulting

Senior Java Software Engineer

Denver, CO · On-site

$128K - $169K/yr

... Developer for a long term contract position. Candidates must currently reside in the state of ... The ideal candidate will have strong Java / Spring Boot experience and recent / modern front end ...

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All JobsContract Frontend Developer JobsContract Frontend Developer Jobs in Colorado

Contract Frontend Developer information

What is a contract frontend developer?

Contract Frontend Developers are professionals hired on a temporary or project basis to build and maintain the user-facing parts of websites and web applications. They specialize in technologies like HTML, CSS, and JavaScript, and often work with frameworks such as React, Angular, or Vue.js. Unlike full-time employees, contract frontend developers typically work for a set duration or until the completion of specific tasks. Their flexible arrangement allows companies to scale development efforts according to project needs.

What are some common challenges contract frontend developers face when joining new projects, and how can they adapt quickly?

Contract Frontend Developers often need to ramp up rapidly with unfamiliar codebases and team workflows. Adapting quickly involves proactive communication with team members, thorough review of project documentation, and leveraging onboarding resources provided. Familiarity with popular frameworks and version control systems helps, but flexibility and a willingness to ask clarifying questions are key. Building rapport with the team and participating in code reviews can also accelerate the adaptation process.

What is the difference between Contract Frontend Developer vs Contract Web Developer?

AspectContract Frontend DeveloperContract Web Developer
Required SkillsHTML, CSS, JavaScript, frameworks like React or AngularHTML, CSS, JavaScript, backend integration, server-side scripting
Work EnvironmentFront-end focused, UI/UX design, client-side developmentFull-stack or backend focus, server management, database interaction
Industry UsageWeb applications, mobile apps, SaaS platformsWebsites, web applications, e-commerce platforms

Contract Frontend Developers specialize in creating the visual and interactive parts of websites and applications, focusing on client-side technologies. Contract Web Developers may handle both front-end and back-end tasks, working on the entire web development stack. While both roles require similar credentials, the Contract Frontend Developer role is more focused on UI/UX and front-end frameworks, making it ideal for projects emphasizing user interface design and interactivity.

What are the key skills and qualifications needed to thrive as a contract frontend developer?

To thrive as a Contract Frontend Developer, you need strong proficiency in HTML, CSS, JavaScript, and a solid understanding of modern frontend frameworks like React, Vue, or Angular, often supported by a relevant degree or bootcamp experience. Familiarity with version control systems (such as Git), build tools (Webpack, npm), and responsive design practices is typically required. Excellent problem-solving, communication, and time management skills help you adapt quickly and collaborate effectively with remote teams or multiple clients. These skills ensure timely, high-quality project delivery and seamless integration into diverse development environments.
What are the most commonly searched types of Frontend Developer jobs in Colorado? The most popular types of Frontend Developer jobs in Colorado are:
What are popular job titles related to Contract Frontend Developer jobs in Colorado? For Contract Frontend Developer jobs in Colorado, the most frequently searched job titles are:
What job categories do people searching Contract Frontend Developer jobs in Colorado look for? The top searched job categories for Contract Frontend Developer jobs in Colorado are:
What cities in Colorado are hiring for Contract Frontend Developer jobs? Cities in Colorado with the most Contract Frontend Developer job openings:
Contract Frontend Developer jobs near you
Infographic showing various Contract Frontend Developer job openings in Colorado as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Software Engineer

Odyssey Systems Consulting Group, Ltd.

Colorado Springs, CO • On-site

$90K - $130K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 14 days ago

Job description

Position Summary
We are seeking a Mid-Level Software Engineer to contribute to the development of the Multimode Threat Engagement Simulation Platform under the technical direction of the Lead and Senior Staff Engineers. You will build features across the stack - backend physics API endpoints in Julia, React/TypeScript UI components, and Cesium map view integrations - while growing your expertise in high-performance scientific computing and defense mission engineering applications.
This role is an opportunity to develop real depth in an intersection of disciplines that is rarely available at early career: scientific computing with Julia, 3D geospatial visualization with CesiumJS, and the physics of aerospace and defense sensor systems. You do not need to arrive with domain knowledge - you will acquire it through hands-on work alongside domain experts and through structured mentorship from the Lead Engineer. What you do need is a solid programming foundation, genuine curiosity about computational physics, and the ability to write clear, tested, maintainable code.
***Contingent upon contract award***
Responsibilities
Backend Development
  • Implement and test Julia HTTP API endpoints for mission data CRUD operations, trajectory query routing, and physics result serialization
  • Write Julia utility functions for data format conversion: GeoJSON, CZML, mission JSON schema parsing and generation
  • Assist with Monte Carlo driver implementation: input parameter perturbation, result aggregation, and statistical output computation (CEP, R95, Pk distribution)
  • Write unit and integration tests for computation backend endpoints; validate API response schemas against the frontend contract
  • Maintain and extend the mission data serialization layer: add new asset types, task attributes, and output fields while preserving backward compatibility with existing save files

Frontend Development
  • Build and maintain React/TypeScript components for the mission planning UI: forms for asset creation and editing, task assignment dialogs, mission parameter panels, and tabbed navigation
  • Implement Cesium/Resium map features: add new asset marker types, update entity styling based on mission state, and wire up click/hover interactions between the globe and the mission data panel
  • Consume Julia backend API endpoints from the React frontend: implement fetch calls, loading states, error handling, and result rendering for trajectory and analysis queries
  • Write TypeScript type definitions for all mission data structures shared between the frontend and the Julia API

Testing and DevOps Support
  • Write automated tests at the component level (React Testing Library or equivalent) and integration level (API contract tests)
  • Assist with CI/CD pipeline maintenance: diagnose build failures on Windows and Linux targets, update dependency versions, and validate packaged installer behavior
  • Participate in code review: give and receive feedback on correctness, performance, and readability
  • Maintain technical documentation: update API reference docs, build guides, and developer setup instructions as features evolve

***Contingent upon contract award***
Qualifications
Citizenship: Must be a US citizen
Minimum Required Qualifications
Clearance: Active Secret Clearance
Education: B.S. in Computer Science, Software Engineering, Electrical Engineering, Physics, or related STEM field
Years of Experience: 1-4 years of software development experience, including internships, research projects, or personal projects demonstrating relevant technical depth
Certifications: NA
Additional Skills
  • Proficiency in at least one programming language with strong typing discipline (TypeScript, Python, Java, C++, Rust, or Julia)
  • Familiarity with REST API design patterns: HTTP methods, JSON request/response schemas, status codes, and client-side error handling
  • Working knowledge of React or equivalent component-based frontend framework, OR demonstrated experience with scientific computing / numerical methods in Python, MATLAB, Julia, or C++
  • Ability to write readable, tested code and iterate based on code review feedback

Preferred Qualifications
  • Any exposure to Julia, even through coursework, online resources, or personal projects
  • Familiarity with geospatial concepts: coordinate systems (WGS84, ECEF, ENU), map projections, or GIS tooling
  • Experience with a scientific computing environment: MATLAB, NumPy/SciPy, or equivalent
  • Curiosity about aerospace, defense, or mission engineering applications - you don't need to know the domain, but you should want to learn it
  • Experience with Electron desktop application development

Additional Information
Location: Colorado Springs, CO or Boston, MA
Travel: Approx. 15-20%
Remote, Onsite, or Hybrid: Hybrid
#LI-JK1
***Contingent upon contract award***
Company Overview
Odyssey is a world-class technical, engineering, and integration company serving the warfighting ecosystem with airborne integration, ISR, C2, and warfighter readiness capabilities. Odyssey meets the military's operational needs by integrating layered defense systems from equipment, technology, and services to data, information, and business operations. We streamline defense acquisition and sustainment, engineering the technical battlefield with domain-specific proficiency to ensure lethality. Odyssey is dedicated to excellent contract execution, peak organizational performance, and fostering a workplace built on employee care.
Odyssey is proud to live out our core values of commitment, ambition, and respect in our work and communities through OdysseyCares, a philanthropic group focused on giving back through direct donations, an employer match program, and volunteering events.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
Please Note:
Final compensation for this position will be determined by various factors such as the Federal Government contract labor categories and contract wage rates, relevant work experience, specific skills and competencies, geographic location, education, and certifications.
This position is filled through continuous recruitment and will remain open until a sufficient pool of applications has been received.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, Tricare supplement, short-term disability, long-term disability, 401(k) match, flexible spending accounts, health savings accounts, employee assistance program, learning and development benefit, paid time off, and holidays.
Odyssey Benefits

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