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Freelance Full Stack Engineer Jobs in Colorado (NOW HIRING)

Cobalt AI

Senior Software Engineer (Full-Stack)

Denver, CO

$160K - $210K/yr

  • Medical

  • Dental

  • Vision

We're hiring a Senior Full Stack Engineer to own the interfaces that security teams rely on every day, including live robot video feeds, event triage workflows, real-time alarm dashboards, and fleet ...

Ombud

Senior Full Stack AI Engineer

Denver, CO · Hybrid

Reports to: CEO The role We're hiring a senior full-stack engineer to build the next generation of Ombud's agentic AI platform. The work splits across two domains: building the agentic engine itself ...

TriOptus LLC

Full Stack Software Engineer

Denver, CO · On-site

We are seeking a resourceful, focused and experienced individual to join our team as a full-stack Software Engineer. You will be part of a team that actively collaborates with business peers to ...

Ombud

Senior Full Stack AI Engineer

Denver, CO · Hybrid

Reports to: CEO The role We're hiring a senior full-stack engineer to build the next generation of Ombud's agentic AI platform. The work splits across two domains: building the agentic engine itself ...

Ombud

Senior Full Stack AI Engineer

Denver, CO · On-site

Reports to: CEO The role We're hiring a senior full-stack engineer to build the next generation of Ombud's agentic AI platform. The work splits across two domains: building the agentic engine itself ...

Cobalt AI

Senior Software Engineer (Full-Stack)

Denver, CO · On-site

$160K - $210K/yr

  • Medical

  • Dental

  • Vision

We're hiring a Senior Full Stack Engineer to own the interfaces that security teams rely on every day, including live robot video feeds, event triage workflows, real-time alarm dashboards, and fleet ...

Bet365

Senior Full Stack Engineer-DTS

Denver, CO · Hybrid

$125K - $155K/yr

As a Senior Full Stack Engineer, you will be responsible for developing, maintaining and evolving our US Sports platform. We are building a team and trading platform to help us become a leader in the ...

bet365

Senior Full Stack Engineer-DTS

Denver, CO · Hybrid

$125K - $155K/yr

As a Senior Full Stack Engineer, you will be responsible for developing, maintaining and evolving our US Sports platform. We are building a team and trading platform to help us become a leader in the ...

bet365

Senior Full Stack Engineer-DTS

Denver, CO · On-site

$125K - $155K/yr

As a Senior Full Stack Engineer, you will be responsible for developing, maintaining and evolving our US Sports platform. We are building a team and trading platform to help us become a leader in the ...

FareHarbor

Full Stack Engineer - Python & JavaScript

Denver, CO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

About the Role FareHarbor, a Booking.com Company, is looking for a full time, full-stack engineer to join our NORAM product team in our Denver, CO office. We're a quickly growing company with a ...

FareHarbor

Full Stack Engineer - Python & JavaScript

Denver, CO · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

About the Role FareHarbor, a Booking.com Company, is looking for a full time, full-stack engineer to join our NORAM product team in our Denver, CO office. We're a quickly growing company with a ...

Cymertek

Full Stack Developer

Aurora, CO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Full Stack Developer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this ... SIMILAR CAREER TITLES Software Engineer, Backend Developer, Frontend Developer, Web Developer ...

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Freelance Full Stack Engineer information

What are the key skills and qualifications needed to thrive as a freelance full stack engineer?

To thrive as a Freelance Full Stack Engineer, you need strong proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, and Python) and a solid understanding of database management and web architecture. Familiarity with frameworks like React, Angular, or Django, version control systems like Git, and cloud platforms is often required, and certifications (e.g., AWS Certified Developer) can be advantageous. Excellent problem-solving, time management, and client communication skills help set you apart in a competitive freelance environment. These skills and qualities are crucial for delivering high-quality, end-to-end solutions while managing multiple projects and maintaining client satisfaction.

What are some common challenges faced by freelance full stack engineers when managing multiple projects simultaneously?

Freelance full stack engineers often juggle several projects at once, which can lead to challenges such as balancing client expectations, managing time effectively, and ensuring consistent code quality across different tech stacks. Communication is key, as freelancers must regularly update clients and coordinate with other team members who may be working remotely. Staying organized with project management tools and setting clear boundaries for deliverables and timelines can help mitigate these challenges, allowing engineers to deliver high-quality work while maintaining healthy client relationships.

What is the difference between Freelance Full Stack Engineer vs Freelance Front End Developer?

AspectFreelance Full Stack EngineerFreelance Front End Developer
SkillsProficient in both front-end and back-end technologies (e.g., HTML, CSS, JavaScript, Node.js, databases)Specializes in front-end technologies (e.g., HTML, CSS, JavaScript, frameworks like React or Angular)
Work EnvironmentHandles entire project development, often working on both client and server sidesFocuses on user interface and experience, primarily on the client side
Common UsageUsed in projects requiring full-stack development, versatile rolesUsed in projects emphasizing UI/UX design and front-end features

Freelance Full Stack Engineers have a broader skill set covering both front-end and back-end development, enabling them to manage entire projects. Freelance Front End Developers specialize in creating engaging user interfaces. The choice depends on project scope and required expertise.

What does a freelance full stack engineer do?

A Freelance Full Stack Engineer is a self-employed software developer who is skilled in both front-end (client-side) and back-end (server-side) technologies. They design, build, and maintain complete web applications or websites, handling everything from user interfaces to databases and server logic. Freelance full stack engineers often work with a variety of clients on short-term or long-term projects, adapting to different tech stacks and business requirements. Their versatility makes them valuable for startups, agencies, and companies needing flexible development expertise.

What are the most commonly searched types of Full Stack Engineer jobs in Colorado?

The most popular types of Full Stack Engineer jobs in Colorado are:

What are popular job titles related to Freelance Full Stack Engineer jobs in Colorado?

For Freelance Full Stack Engineer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Freelance Full Stack Engineer jobs in Colorado look for?

The top searched job categories for Freelance Full Stack Engineer jobs in Colorado are:

What cities in Colorado are hiring for Freelance Full Stack Engineer jobs?

Cities in Colorado with the most Freelance Full Stack Engineer job openings:

Freelance Full Stack Engineer jobs near you

Senior Software Engineer (Full-Stack)

Cobalt AI

Denver, CO

$160K - $210K/yr

Full-time

Medical, Dental, Vision

Re-posted 17 days ago

Job description

Summary:

Cobalt AI uses automation to elevate physical safety and security in the workplace. Our platform, Cobalt Monitoring Intelligence, is a hybrid AI system, cloud-hosted with edge-deployed hardware, that provides human-verified, real-time monitoring of surveillance cameras, alarms, and robots across enterprise locations.


We're hiring a Senior Full Stack Engineer to own the interfaces that security teams rely on every day, including live robot video feeds, event triage workflows, real-time alarm dashboards, and fleet management tools built in React and TypeScript. You'll also work across the backend (Django/Python, GraphQL) to build the APIs that power those experiences.


Responsibilities:
Build and refine real-time security dashboards, event triage interfaces, and fleet management
tools used by security teams 24/7
Design and implement complex, interactive UIs - canvas rendering (environment maps, robot
positioning), data visualization, live robot video via WebRTC, and subscription-driven event

streaming
Own component architecture in a monorepo and contribute to a Storybook-driven design system
Build and extend the GraphQL API - queries, mutations, and WebSocket subscriptions -
serving all frontend applications
Work with Django models in PostgreSQL - multi-tenant data isolation, schema design, query
optimization, and migrations
Ship full-stack features end-to-end - from React components to GraphQL mutations to Django
models and background jobs
Partner with the CDS and ML teams on the detection-to-event pipeline
Write well-tested code with strong observability - tracing, structured logging, and metrics
Participate in code reviews, architectural discussions, incident response, and on-call rotations


Qualifications:
5+ years of professional software engineering experience, with depth in frontend development
Strong proficiency in React and TypeScript - opinionated about component architecture, state
management, and rendering performance
Experience building complex, interactive UIs - canvas/2D rendering, real-time streaming, data
visualization, or WebRTC
Backend fluency in Python and Django - building GraphQL APIs, writing migrations, and
optimizing ORM queries
Solid understanding of PostgreSQL - data modeling, indexing, and query performance
Comfort working in a monorepo with shared packages, generated types, and cross-team code
ownership
Experience deploying to AWS and working with containerized applications


Why Work for Us?:

Competitive salary, equity, and full benefits (medical, vision, dental). Flexible work arrangements. A proven platform, an expanding customer base, and the opportunity to shape the engineering org at an inflection point.


Salary Range: $160k - $210k (actual compensation will be determined based on experience, location, and other factors permitted by law)


Cobalt AI is an equal employment opportunity employer and values diversity. Qualified candidates are considered for employment without regard to race, religion, gender, gender identity, sexual orientation, national origin, age, military or veteran status, disability, or any other characteristic protected by applicable law.

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