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Mid Level Backend Developer Jobs in Denver, CO (NOW HIRING)

Leidos

Mid-Level Test Engineer

Englewood, CO · On-site

$87K - $157K/yr

Leidos is seeking an experienced Mid-Level Test Engineer to join the Chinook Program supporting an ... Familiarity with CI/CD tools including Jenkins, GitLab, Azure DevOps, or similar platforms.

Leidos

Mid-Level Test Engineer

Englewood, CO · On-site

$87K - $157K/yr

As a Mid-Level Test Engineer, you will play a key role in ensuring the delivery of reliable, secure ... Familiarity with CI/CD tools including Jenkins, GitLab, Azure DevOps, or similar platforms.

Artech Information System LLC

Java Developer

Denver, CO · On-site

$52.50 - $68/hr

Jr-Mid level Java Developer * Preferable 2-5 years. * Backend Java Developer * Spring * NoSQL/MySQL * Cassandar (plus) * Candidates with the soft skills (passionate, pro-active, personable ...

Nametag

Senior Backend Engineer

Denver, CO · On-site

$120K - $190K/yr

Build internal tools and dashboards that improve operational visibility and developer workflows ... Final compensation is based on role, level, skills, experience, and education. Your recruiter or ...

SofTec Solutions

mid-level .NET Developer

Denver, CO · On-site

We were founded in 1996 in Denver and have numerous accolades including Denver Business Journal's "Top Software Developers , "Fastest Growing Companies , and Inc. Magazine's "Fastest Growing ...

WSP

Mid-Level Structural (Buildings) Engineer

Denver, CO · On-site

$100 - $125/hr

For a mid-level engineer, this role offers the opportunity to lead portions of structural design work, mentor junior staff, coordinate directly with other disciplines, and develop deeper expertise in ...

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All JobsMid Level Backend Developer JobsMid Level Backend Developer Jobs in Denver, CO

Mid Level Backend Developer information

See Denver, CO salary details

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How much do mid level backend developer jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for mid level backend 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 mid level backend developer?

Mid Level Backend Developers are software engineers who specialize in developing and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They usually have a few years of professional experience and are proficient in programming languages like Java, Python, Node.js, or Ruby. These developers are responsible for ensuring that data flows efficiently between the server and users, optimizing performance, and collaborating with front-end developers and other team members. Their role often includes troubleshooting server issues, writing automated tests, and implementing security best practices.

What are the key skills and qualifications needed to thrive as a mid level backend developer?

To thrive as a Mid Level Backend Developer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of server-side logic, and experience with relational and non-relational databases. Familiarity with frameworks (such as Spring or Express), RESTful API development, version control systems (like Git), and containerization tools (like Docker) is typically required. Effective problem-solving, collaboration, and clear communication are standout soft skills for this role. These abilities are crucial for building reliable, scalable backend systems and working efficiently within development teams.

What are some typical challenges a mid level backend developer might face when working on large-scale applications?

As a Mid Level Backend Developer, you may frequently encounter challenges related to maintaining code quality and ensuring scalability as applications grow. Managing database performance, optimizing API responses, and integrating with legacy systems are common tasks that require both technical skill and problem-solving ability. Collaboration with frontend developers, DevOps engineers, and QA testers is essential to ensure smooth deployments and consistent user experiences. Staying up-to-date with new frameworks and technologies, while balancing project deadlines, is also a key part of the role.

What is the difference between Mid Level Backend Developer vs Junior Backend Developer?

AspectMid Level Backend DeveloperJunior Backend Developer
Experience2-4 years0-2 years
SkillsProficient in backend frameworks, databases, API developmentBasic understanding of backend concepts, learning frameworks
ResponsibilitiesDeveloping features, troubleshooting, code reviewsAssisting in tasks, learning codebase, bug fixing
Work EnvironmentCollaborates with teams, independent problem-solving

The main difference between a Mid Level Backend Developer and a Junior Backend Developer lies in experience and skill level. Mid level developers have more hands-on experience, handle complex tasks independently, and contribute significantly to project development. Junior developers are still learning, focusing on foundational tasks and gaining industry knowledge. This distinction helps employers identify the right candidate for different stages of project involvement.

What are the most commonly searched types of Backend Developer jobs in Denver, CO?

The most popular types of Backend Developer jobs in Denver, CO are:

Mid Level Backend Developer jobs near you
Infographic showing various Mid Level Backend Developer job openings in Denver, CO as of June 2026, with employment types broken down into 20% Full Time, 69% Part Time, and 11% Contract. Highlights an 83% Physical, 3% Hybrid, and 14% Remote job distribution, with an average salary of $123,602 per year, or $59.4 per hour.

.NET Application Developer (Junior & Mid-Level)

Sonepar

Broomfield, CO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

Job description

Sonepar Management Group (SMG) supports our Sonepar brands (i.e. operating companies) in the US through a shared services model. These services include, but are not limited to: human resources, finance, digital enterprise, supply chain, vendor relations, marketing, legal, and communications. The SMG teams enable our brands to do business in their local regions while taking advantage of the scale and collective resources of a global enterprise.
SMG fosters an inclusive and supportive culture. We offer leadership and development programs to help you reach your career goals. Our associates share in our collective achievements, and we firmly believe that Sonepar is "Powered by Difference." By driving technology and innovation, enabling paths to success, and caring about our people and their families, we have built a workplace where you can build a fulfilling career.

Sonepar is seeking Junior and Mid-Level .NET Application Developers to join our growing technology team. This is an exciting opportunity to work on innovative, enterprise-scale solutions, contribute to high-impact projects, and collaborate with cross-functional teams in a dynamic environment. As a member of our development team, you will play a key role in designing, developing, and maintaining high-quality software applications that support business-critical operations across the organization.

Location: Broomfield, Colorado
Work Arrangement: Hybrid

Key Responsibilities
  • Participate in both front-end and back-end application development.
  • Design, develop, and maintain end-to-end software solutions.
  • Build scalable, secure, and high-performing web applications.
  • Troubleshoot, diagnose, and resolve application issues to ensure optimal performance and reliability.
  • Collaborate with business partners, product teams, and fellow developers to deliver innovative technology solutions.
  • Contribute to application enhancements, integrations, and continuous improvement initiatives.
Required Qualifications

Qualified candidates must:

  • Hold a Bachelor's degree in Computer Science, Information Technology, or a related field.
  • Possess a minimum of three (3) years of experience as a Full-Stack Application Developer within a large and complex organization.
  • Demonstrate experience designing, developing, and supporting:
    • .NET applications utilizing ASP.NET and MVC frameworks
    • Application Programming Interfaces (APIs)
    • Modern, responsive web user interfaces
    • Highly scalable web-based applications and components
    • System integrations utilizing XML, JSON, and related technologies
    • Productivity and business applications leveraging web and mobile technologies
Technical Skills & Experience

Candidates should demonstrate strong proficiency in the following areas:

  • Microsoft .NET Framework and ASP.NET MVC
  • C# and Object-Oriented Design principles
  • Visual Studio IDE
  • Microsoft SQL Server and relational database technologies
  • RESTful services and Web API development
  • End-to-end web application development, from user interface through data access layers
  • Rich web application UI development
  • JavaScript, TypeScript, jQuery, JSON, HTML, and CSS
  • Cross-browser application development and support
  • Application architecture, design patterns, and scalable solution development
Work Authorization Requirement

Applicants must be legally authorized to work in the United States for Sonepar on a full-time basis. Sonepar does not provide employment visa sponsorship now or in the future for these positions.

Why Join Sonepar?

At Sonepar, you will have the opportunity to work with cutting-edge technologies, collaborate with talented professionals, and build solutions that drive innovation across one of the world's leading electrical distribution organizations. We are committed to fostering a culture of continuous learning, professional growth, and technical excellence.

#LI-CM1

What We Offer You

We offer great family-friendly benefits to full-time associates:

  • Healthcare plans
  • Dental & vision
  • Paid time off
  • Paid parental leave
  • 401(k) retirement savings with company match
  • Professional and personal development programs
  • Opportunity to become a shareholder
  • Employer-paid short- and long-term disability
  • Employer-paid life insurance for spouse and dependents
  • Robust wellness program
  • Gym reimbursement
  • Employee Assistance Program (EAP)

We're proud to be a military-friendly company, and our many employee resource groups (ERGs) help you make connections and feel supported.

Learn More About Us

Get to know us on LinkedIn, Facebook, Instagram and Youtube and learn how we're "Powering Progress for Future Generations."

Learn more about us and our Sonepar family of brands: https://www.soneparusa.com/us-en/about-us

Equal Employment Opportunity Statement

Sonepar is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to their race, color, creed, religion, national origin, citizenship status, ancestry, sex, age, physical or mental disability unrelated to ability, marital status, family responsibilities, pregnancy, genetic information, sexual orientation, order of protection status, protected veteran or military status, or an unfavorable discharge from military service, or any other categories protected by federal, state or local law.

Sonepar and our family of brands are committed to the full inclusion of all qualified individuals. In keeping with our commitment, we will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if a reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please call 843-745-2420 or email recruiting@sonepar-us.com.

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