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Remote Backend Developer Internship Jobs in Colorado

Pentera

Senior Backend Engineer

Denver, CO · Remote

$180K - $210K/yr

Remote position. Occasional travel to our office in Golden, Colorado is required. About Pentera ... At Pentera, backend engineers build and operate production-grade systems that sit at the core of ...

Eliassen Group

.NET Backend Engineer

Denver, CO · Remote

Remote Our client seeks a backend engineer to build event-sourced, microservices-based systems using .NET 8. The role will design and deliver APIs, leverage Dapr and the actor pattern with Orleans ...

Semgrep, Inc

Senior Backend Software Engineer

Denver, CO · On-site +1

$163K - $246.50K/yr

Semgrep Backend Engineer Semgrep, the leader in code security for builders, empowers invention ... Remote employment will be considered for exceptional candidates as well. Compensation The estimated ...

In Tandem

Senior Backend Engineer, Java

Denver, CO · On-site +1

$120K - $140K/yr

Senior Backend Engineer, Java Department: Engineering Employment Type: Permanent - Full Time ... Remote USA - In Tandem Compensation: $120,000 - $140,000 / year Description At In Tandem, we build ...

Navstar

Mid-Level Backend Software Engineer

Aurora, CO · Remote

$105K - $125K/yr

Mid-Level Backend Software Engineer Location: Gaithersburg, Maryland; Alexandria, VA; Chantilly, VA ... Yes, 10% of the time Remote: No Ennoble First is your place. You make it your own by embracing ...

New

SNI Technology

Software Developer

Denver, CO · Remote

$70 - $90/hr

Senior Backend Engineer Location: Remote (Must be based in Denver, CO; Northern VA; or Austin, TX for occasional office visit) Duration: 6-Month Contract (High likelihood of extension or conversion ...

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What is the difference between Remote Backend Developer Internship vs Remote Software Engineer Internship?

AspectRemote Backend Developer InternshipRemote Software Engineer Internship
Required CredentialsBasic programming skills, coursework in backend development, some internshipsSimilar, often includes broader software development knowledge
Work EnvironmentRemote, collaborative teams, tech companies, startupsRemote, diverse industries, tech firms, startups
Employer & Industry UsageTech companies, startups focusing on backend systemsTech companies, startups, broader software projects
Search & Comparison IntentPeople interested in backend-specific roles, internshipsPeople exploring software engineering internships broadly

The Remote Backend Developer Internship focuses specifically on backend technologies like databases, server-side logic, and APIs, while the Remote Software Engineer Internship covers a broader range of software development tasks. Both roles are remote, often in tech companies or startups, and require foundational programming skills. The main difference lies in specialization: backend development versus general software engineering.

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Remote Backend Developer Internship jobs near you

Backend Developer - Data Annotation Systems

Alignerr

Denver, CO • Remote

Other

Posted 29 days ago

Job description

Backend Developer - Data Annotation Systems (AI Infrastructure)
About the Role
What if your Python expertise could directly shape the infrastructure behind the world's most advanced AI models? We're looking for a Senior Python Full-Stack Engineer to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models.
This is a fully remote, flexible contract role for an experienced engineer who wants to work on real production systems at the cutting edge of AI development - not toy projects, but infrastructure that matters.
  • Organization
    : Alignerr
  • Type
    : Hourly Contract
  • Location
    : Remote
  • Commitment
    : 20-40 hours/week
What You'll Do
  • Design, build, and optimize high-performance Python systems that support large-scale AI data pipelines and evaluation workflows
  • Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale
  • Improve the reliability, performance, and safety of existing Python codebases
  • Collaborate with data, research, and engineering teams to support model training and evaluation infrastructure
  • Identify bottlenecks and edge cases in data and system behavior - then implement scalable, production-ready fixes
  • Participate in synchronous design reviews to iterate on architecture and implementation decisions
Who You Are
  • Native or fluent English speaker with clear written and verbal communication skills
  • Full-stack developer with a strong systems programming background
  • 3-5+ years of professional experience writing production-grade Python
  • Experienced building asynchronous task queues for long-running background jobs
  • Proficient in optimizing database queries for high-read/write workloads and serving data via real-time protocols (e.g., WebSockets)
  • Able to commit 20-40 hours per week with reliability and consistency
Nice to Have
  • Prior experience with data annotation, data quality pipelines, or evaluation systems
  • Familiarity with AI/ML workflows, model training, or benchmarking infrastructure
  • Experience with distributed systems or internal developer tooling
Why Join Us
  • Work directly with leading AI research labs on production-grade, high-impact systems
  • Fully remote and flexible - work from anywhere on a schedule that suits you
  • Freelance autonomy with the structure and focus of meaningful, substantive engineering work
  • Make a direct, tangible contribution to the infrastructure shaping the future of AI
  • Potential for ongoing work and contract extension as new projects launch

Apply