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Back End Developer Jobs in Denver, CO (NOW HIRING)

ClifyX

Rust Backend Developer

Denver, CO · On-site

ClifyX is a company seeking a Rust Backend Developer to develop and maintain backend services. The role involves designing scalable microservices and optimizing performance using Rust's ownership ...

Omega Solutions, Inc.

Java Backend Developer

Denver, CO · On-site

$52 - $67.50/hr

Omega Solutions, Inc. is seeking a Java Backend Developer to join their team. The role involves building backend services and APIs, collaborating with various teams to enhance user experience and ...

Jobsbridge

Back End Developer

Denver, CO · On-site

Work with cross functional teams comprised of software engineers, software architects, product managers and system administrators to implement the best solution. Identify application service ...

Nametag

Senior Backend Engineer

Denver, CO · On-site

$120K - $190K/yr

Build internal tools and dashboards that improve operational visibility and developer workflows. * Make clean integration decisions across frontend, backend, third-party APIs, and customer systems.

Capital Rx

Senior Backend Developer - Integrations

Denver, CO · On-site

$124K - $161K/yr

Build robust backend applications in Python on AWS Lambda, API Gateway, SMS, ECS, and other cloud technologies. * Implement backend code in a serverless, cloud-native environment (Flask/AWS Lambda ...

Clerkie

Backend Engineer

Denver, CO · Remote

$90/hr

About the role We're looking for a Backend Engineer who wants to build and own critical systems in a fast-moving environment. This role is ideal for someone with strong backend fundamentals who is ...

Quindar

Backend Engineer

Denver, CO · On-site

$120K - $180K/yr

Day to day, you will be a part of the engineering team of frontend and backend engineers working in an Agile Scrum environment. Tech Skills * Proficiency in Python, GraphQL, Docker, and Terraform (or ...

CosQube INC

Scala Developer

Denver, CO · On-site

Scala Developer Location: Denver, US Duration:12+ Months Contract with Extension Employment Type ... Implement backend systems using frameworks like Spring Boot, Akka HTTP, or Play * Ensure reliable ...

Leidos

Mid-Level Backend Software Engineer

Denver, CO · On-site

$87K - $157K/yr

We're hiring a Backend Software Engineer to support a high‑visibility, data‑driven application used across the organization for analytics and reporting. You'll help build and maintain core ...

Loft Orbital Solutions

Backend Engineer - Oort

Golden, CO · On-site

$140K - $190K/yr

Loft Orbital is looking for a Backend Engineer to join our Oort team. Oort is our central web platform-a unified environment that consolidates all infrastructure data and tools, empowering Loft to ...

Loft Orbital Solutions

Backend Engineer - Oort

Golden, CO · On-site

$140K - $190K/yr

Loft Orbital is looking for a Backend Engineer to join our Oort team. Oort is our central web platform-a unified environment that consolidates all infrastructure data and tools, empowering Loft to ...

Leidos

Mid-Level Backend Software Engineer

Boulder, CO · On-site

$87K - $157K/yr

We're hiring a Backend Software Engineer to support a high‑visibility, data‑driven application used across the organization for analytics and reporting. You'll help build and maintain core ...

Leidos

Mid-Level Backend Software Engineer

Aurora, CO

$87K - $157K/yr

We're hiring a Backend Software Engineer to support a highvisibility, datadriven application used across the organization for analytics and reporting. You'll help build and maintain core backend ...

Leidos

Mid-Level Backend Software Engineer

Aurora, CO · On-site

$87K - $157K/yr

We're hiring a Backend Software Engineer to support a high‑visibility, data‑driven application used across the organization for analytics and reporting. You'll help build and maintain core ...

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How much do back end developer jobs pay per hour?

As of Aug 31, 2026, the average hourly pay for back end developer in Denver, CO is $59.42, according to ZipRecruiter salary data. Most workers in this role earn between $48.75 and $70.24 per hour, depending on experience, location, and employer.

What is a back end developer?

A Back End Developer is a programmer who specializes in building and maintaining the server-side logic, databases, and application functionality that power websites and web applications. Unlike front end developers, who focus on the visual and interactive elements users see, back end developers work behind the scenes to ensure data is stored, processed, and delivered correctly. They typically use programming languages like Python, Java, Ruby, or PHP, and interact with databases such as MySQL or MongoDB. Their work is crucial for making sure applications run smoothly, securely, and efficiently.

What is a back end developer?

A back end developer is a computer science professional who specializes in functionality that takes place on the server side or backend. As a back end developer, you write code to create software that solves a business need. Your responsibilities are to research the needs of either your employer, or a particular industry, find a problem, and create a software solution. A back end developer differs from a traditional web developer, or front end developer, in that back-end software may not have a user interface or even have exposure to the web.

What are the key skills and qualifications needed to thrive as a back end developer?

To thrive as a Back End Developer, you need strong programming skills in languages like Java, Python, or Node.js, along with a solid understanding of databases and API design, typically supported by a degree in computer science or related experience. Familiarity with frameworks such as Spring or Django, version control systems like Git, and cloud platforms (e.g., AWS or Azure) is often required, with certifications in these areas considered beneficial. Problem-solving, effective communication, and teamwork are crucial soft skills that help developers collaborate and address complex technical challenges. These competencies are vital for building reliable, scalable systems that support front-end applications and ensure robust product performance.

What are some common challenges back end developers face when integrating with front-end teams?

Back End Developers often encounter challenges when aligning data structures and APIs with front-end requirements, especially as user interface needs evolve rapidly during development. Effective communication and regular collaboration with front-end developers are essential to ensure that endpoints, data formats, and error handling are well-coordinated. Additionally, maintaining consistent documentation and using tools like Swagger or Postman can help streamline integration and reduce misunderstandings between teams.

What is the difference between Back End Developer vs Front End Developer?

AspectBack End DeveloperFront End Developer
Primary FocusServer-side logic, databases, APIsUser interface, website layout, client-side scripting
Skills & TechnologiesLanguages like Java, Python, Ruby; databases; server managementHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentBackend systems, server environments, cloud platformsDesign tools, browser testing, UI/UX design
Common CertificationsCertified Web Developer, AWS Certified DeveloperCertified Front End Developer, UI/UX certifications

Back End Developers focus on server-side logic, databases, and APIs, ensuring the website's functionality behind the scenes. Front End Developers work on the visual and interactive aspects users see and interact with. Both roles are essential in web development, often collaborating to create seamless digital experiences.

Is back end developer in demand?

Back end developers are in high demand due to the growth of web applications and digital services. Skills in programming languages like Python, Java, or Node.js, along with knowledge of databases and APIs, are highly sought after by employers across various industries.
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The top searched job categories for Back End Developer jobs in Denver, CO are:

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Cities near Denver, CO with the most Back End Developer job openings:

Back End Developer jobs near you
Infographic showing various Back End Developer job openings in Denver, CO as of August 2026, with employment types broken down into 72% Full Time, and 28% Contract. Highlights an 78% In-person, and 22% Remote job distribution, with an average salary of $123,590 per year, or $59.4 per hour.

Rust Backend Developer

Denver, CO • On-site

ClifyX
Recruiting and Staffing Services • 51 - 200 employees
Learn more about ClifyXexternal

Full-time

Re-posted 19 days ago

Job description

Job Summary:
ClifyX is a company seeking a Rust Backend Developer to develop and maintain backend services. The role involves designing scalable microservices and optimizing performance using Rust's ownership model.
Responsibilities:
• Develop and maintain backend services using Rust.
• Design RESTful APIs, GraphQL, or gRPC for scalable microservices.
• Work with databases (PostgreSQL, MySQL, MongoDB) using Diesel or SQLx.
• Implement asynchronous programming with Tokio or async-std.
• Optimize performance and ensure memory safety using Rust's ownership model.
• Deploy applications using Docker, Kubernetes, and CI/CD pipelines.
Qualifications:
Required:
• Strong knowledge of Rust programming and backend frameworks (Actix, Axum, Rocket).
• Experience with async programming and concurrency.
• Familiarity with JWT authentication, OAuth, and security best practices.
Preferred:
• Experience in cloud services (AWS, GCP, Azure) is a plus.
Company:
ClifyX provides innovative business solutions which satisfy requirements for mission-critical reliability, scalability, interoperations. Founded in 1998, the company is headquartered in South Plainfield, USA, with a team of 501-1000 employees. The company is currently Late Stage.
ClifyX logo

About ClifyX

Sourced by ZipRecruiter

ClifyX is a well-established player in the IT Services sector that specializes in providing result-oriented technological solutions to a wide range of industrial verticals. Based in South Plainfield, New Jersey, ClifyX offers a comprehensive selection of IT services that include project staffing, application development, professional consulting, and other IT-based solutions. While the company's website, clifyx.com, does not divulge the exact founding date, it is clear that ClifyX has grown into a renowned name within their domain, thanks to their unwavering commitment to innovative practices. The company's mission statement revolves around harnessing the power of technology to assist their clientele in steering their respective businesses towards success.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

South Plainfield, NJ, US

Year founded

1998

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