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Backend Software Engineer Intern Jobs in Colorado

Backend Engineer

Denver, CO · On-site

$120K - $180K/yr

Quindar Quindar builds modern, cloud-native satellite mission operations software with a simple ... Day to day, you will be a part of the engineering team of frontend and backend engineers working in ...

About the Role We are looking for a strong Backend Senior Software Engineer who wants to create deep and meaningful product engagement experiences! We have an increasing user base, and you will be ...

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Backend Software Engineer Intern information

What is the difference between Backend Software Engineer Intern vs Backend Software Engineer?

AspectBackend Software Engineer InternBackend Software Engineer
QualificationsTypically pursuing or recently completed a degree in CS or related fieldBachelor's or higher in CS or related field, with relevant experience
Work EnvironmentInternship programs, learning-focused, supervisedFull-time professional role, responsible for developing and maintaining backend systems
ResponsibilitiesAssist in coding, testing, and debugging under supervisionDesign, implement, and optimize backend services independently
Usage in IndustryEntry-level position for students or recent gradsCore role in software development teams

The main difference between a Backend Software Engineer Intern and a Backend Software Engineer lies in experience, responsibilities, and employment status. Interns are typically students gaining practical experience, while Backend Software Engineers are full-time professionals responsible for core backend development tasks.

What does a Backend Software Engineer Intern do?

A Backend Software Engineer Intern assists in developing and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They work closely with senior engineers to write efficient code, troubleshoot issues, and ensure smooth data flow between users and servers. Interns may also participate in code reviews, testing, and documentation to support the overall software development process. This role provides hands-on experience with backend frameworks, database management, and industry best practices.

What are the key skills and qualifications needed to thrive as a Backend Software Engineer Intern, and why are they important?

To thrive as a Backend Software Engineer Intern, you typically need a solid understanding of programming languages like Java, Python, or Node.js, along with knowledge of data structures, algorithms, and database fundamentals. Familiarity with version control systems (like Git), RESTful APIs, and cloud platforms such as AWS or Azure is often required. Strong problem-solving skills, attention to detail, and effective communication help interns stand out in team settings. These competencies are crucial for building reliable backend services, collaborating efficiently, and contributing meaningful code in a fast-paced development environment.

What types of projects and responsibilities can I expect as a Backend Software Engineer Intern?

As a Backend Software Engineer Intern, you'll typically work on tasks such as designing and implementing APIs, optimizing database queries, and supporting the integration of backend services. Interns often collaborate closely with senior engineers, participate in code reviews, and contribute to team meetings and sprint planning. While you'll be given guidance and mentorship, you'll also be encouraged to take ownership of smaller features or bug fixes within larger projects, providing valuable hands-on experience with scalable systems. This role offers insight into how backend systems are architected and maintained in a real-world environment.
What cities in Colorado are hiring for Backend Software Engineer Intern jobs? Cities in Colorado with the most Backend Software Engineer Intern job openings:
Infographic showing various Backend Software Engineer Intern job openings in Colorado as of July 2026, with employment types broken down into 1% As Needed, 87% Full Time, 7% Part Time, and 5% Contract. Highlights an 76% Physical, 4% Hybrid, and 20% Remote job distribution.
Senior Back End Software Developer

Senior Back End Software Developer

System One

Colorado Springs, CO • On-site

$118K - $154K/yr

Other

Medical, Dental, Vision, Life, Retirement

Posted 13 days ago


Job description

Senior Back End Software Developer Location: Colorado Springs, Colorado Work Model: Onsite Clearance: Eligible – will be processed for Top Secret eventually If interested reach out directly to kimberly.spicer@systemone.com or text 301-252-8762 Responsibilities
  • Develop and maintain server-side logic by writing code that powers the application's functionality, handles user requests, and manages data.
  • Create APIs that allow different parts of the application, or different applications, to communicate with each other.
  • Design database schemas, write queries, and ensure data integrity and security.
  • Ensure the application can handle a growing number of users and data efficiently.
  • Work closely with front-end developers to integrate the back-end functionality with the user interface.
  • Implement security measures to protect sensitive data and prevent unauthorized access.
  • Participate in code reviews, debug developed code, and stay current with software development trends.
  • Ensure all changes or adaptations are thoroughly and meticulously reviewed, tested, and verified to eliminate application downtime or degradation.
  • Collaborate with cross-functional teams, develop reusable code components, and ensure application accessibility.
  • Actively participate in Integrated Product Teams (IPT’s) and other engineering working groups to review, assess, and mature engineering artifacts such as CONOPs, system architecture, system interfaces, data models, and ICDs.
  • Provide meeting coordination, technical expertise, and software development to assist customer decision-makers.
Requirements
  • B.S. in Computer Science, Computer Engineering, or equivalent STEM-based degree.
  • 7+ years of experience as a Back-End Software Application Developer with a portfolio, and proficiency in modern object-oriented programming languages such as Python, Java, C++, Node.js, or Ruby.
  • Experience with both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.
  • Familiarity with back-end frameworks like Django, Flask, Spring, or Express.js.
  • Experience with cloud platforms like AWS, Azure, or Google Cloud.
  • Experience with efficient data storage and retrieval.
  • Strong, demonstrable understanding of modern design and coding principles and practices.
  • Familiarity with version control systems (e.g., Git).
  • Knowledge of software performance optimization.
  • Strong problem-solving skills.
  • Excellent communication and teamwork abilities.
  • Nice to have: Advanced degree in Computer Science or related field. Experience with testing frameworks. Knowledge of security practices. Active TS/SCI. Space domain experience.
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #LI-KA1 #M1 Ref: #851-Rockville-S1