Top 231 Back end developers Jobs in Denver, Co

Lead Software Engineer (.NET / Azure / React)
Rebus Energy Solutions —Englewood, CO
- $130,000 - $160,000 a year
- Full-time
- Azure
- Office
- SQL
- 401(k)
- Paid time off
Quick Apply
14h
Back End Developer - AI Trainer
DataAnnotation —Louisville, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Backend Software Engineer - AI Trainer
DataAnnotation —Louisville, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Back End Developer - AI Trainer
DataAnnotation —Boulder, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Infrastructure Engineer - Db2 Support
PNC Financial Services Group —Lakewood, CO
- $86,250 - $172,500 a year
- Full-time
- Microsoft Word
- Microsoft Outlook
- Customer service
- Wellness program
- Health savings account
Java Software Engineer Level 2 or 3
Northrop Grumman —Aurora, CO
- $91,800 - $171,000 a year
- Overtime
- Mid-level
- Office
- Java
- Paid holidays
- Disability insurance
Azure/.Net Developer
Matlen Silver —Denver, CO
- $75 - $80 an hour
- Contract
- 5 years
- Office
- SQL
- Health insurance
- Dental insurance
Quick Apply
Junior Front-End Developer
Parsons —Westminster, CO
- $88,400 - $154,700 a year
- Computer science
- Computer Science
- Office
- Wellness program
- Paid holidays
8d
Back-end Ground Software Engineer III - Lunar Permanence
Blue Origin —Denver, CO
- $150,931.00 - $230,512.80 a year
- Full-time
- Background check
- 5 years
- Bachelor of Science
- Paid parental leave
- Paid holidays
Front-End ASP.Net Developer
PIN Business Network —Greenwood Village, CO
- $70,000 - $105,000 a year
- Full-time
- Writing skills
- Mid-level
- 3 years
- Health insurance
- 401(k)
Quick Apply
.Net Developer @ Denver,CO
iTek People Inc —Denver, CO
- Contract
- Mid-level
Quick Apply
Software Engineer I
DAT —Denver, CO
- $85,000 - $117,000 a year
- Hybrid work
- Computer science
- Computer Science
- Software troubleshooting
- Health savings account
- AD&D insurance
Backend Engineeer
Vorto —Denver, CO
- $120,000 - $500,000 a year
- Full-time
- Mid-level
- 3 years
- SQL
- AD&D insurance
- Paid holidays
Junior Application Developer
CACI —Denver, CO
- $53,100 - $106,300 a year
- Full-time
- Computer Science
- Java
- Bachelor's degree
- Health insurance
2d
Software Engineer II
Vizio —Denver, CO
- $88,000 - $171,000 a year
- Computer Science
- High school
- Office
- Paid jury duty
- Disability insurance
5d
Software Engineer, Platform - Denver, CO, USA
Speechify —Denver, CO
- $140,000 - $200,000 a year
- Remote
- Azure
- Mid-level
- AWS
2d
Server Software Developer
CACI —Denver, CO
- $69,600 - $142,700 a year
- Full-time
- Computer science
- Computer Science
- Military
- Health insurance
12d
Full Stack Developer
JPLoft —Denver, CO
- Azure
- Software troubleshooting
- DevOps
- Health insurance
MERN / MEAN Developer
JPLoft —Denver, CO
- Mid-level
- Office
- AWS
- Health insurance
Backend C++ Josh System Developer
Josh.ai —Denver, CO
- $80,000 - $140,000 a year
- Email
- Computer science
- Computer Science
- Mid-level
- Free parking
- Paid holidays

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back end developers jobs near denver, co

Lead Software Engineer (.NET / Azure / React)

Rebus Energy Solutions
Englewood, CO

Quick Apply

Job Details

Full-time
$130,000 - $160,000 a year
14 hours ago

Benefits

401(k)
Paid time off
401(k) matching

Qualifications

Performance tuning
Software engineering
Azure
Managing projects in an engineering role
Team leadership
Enterprise software
Application Architecture Design (Architecture design skill)
.NET Core
System performance optimization
Enterprise software systems development
Microservices
SQL
Technical solutions implementation
Production systems
Implementing APIs
Cloud Native Design
Experience with SaaS (as product category for technical sales engineers)
Developing automated testing protocols
Engineering product development
Front-end component implementation
DevOps automation
System tuning
TypeScript
Design (software development lifecycle)
Providing code feedback

Full Job Description

Lead Software Engineer (.NET / Azure / React)

Location: Denver, Colorado (In Office)

Note: Rebus Energy Solutions is unable to sponsor employment visas, including H-1B visas, now or in the future. Candidates must already be authorized to work in the United States without employer sponsorship.

Compensation: $130,000–$160,000, based on experience, demonstrated technical ability, and overall fit.

About Rebus Energy Solutions

Rebus Energy Solutions develops VANTAGE, an enterprise SaaS platform that powers mission-critical logistics, dispatching, workflow automation, invoicing, regulatory reporting, integrations, and real-time operational workflows for the energy industry. For more than a decade, we have continuously evolved VANTAGE into a comprehensive enterprise platform. As we grow, we are investing heavily in cloud technologies, modern engineering practices, AI-assisted software development, and stack modernization.

We are a founder-led, highly collaborative engineering organization. Our founders remain actively involved in software architecture, product design, code reviews, and technical decision-making. We operate as an agile, distributed team across the United States and India, where every engineer has a voice and the opportunity to make a meaningful impact.

Work Environment

We value in-person collaboration and believe some of our best engineering work comes from architects and developers brainstorming together, reviewing code, solving complex problems, and making technical decisions side by side. This role is based in our Denver office, where you'll work closely with the founders and the local engineering team while collaborating daily with teammates in India.

About the Role

This is a hands-on technical leadership role. We are looking for an engineer who thrives on solving difficult technical problems, designing scalable systems, and writing production-quality code. Success in this role means spending most of your day actively building software, reviewing pull requests, and mentoring engineers—rather than primarily coordinating work or managing projects.

One of your first priorities will be leading the modernization of our existing DevExtreme/Knockout.js application to React while continuing to deliver new enterprise capabilities across the platform.

We care far more about demonstrated ability, ownership, and technical excellence than titles or years of experience. If you've built great software, enjoy solving hard problems, and want to help build an exceptional engineering team, we'd love to hear from you.

Key Responsibilities

· Design and develop our enterprise SaaS platform while remaining an active contributor, writing production-quality C# and React code.

· Lead the migration of our DevExtreme/Knockout.js application to React.

· Design cloud-native solutions using Azure, microservices, and asynchronous messaging.

· Review pull requests, mentor engineers, and elevate engineering standards.

· Improve testing, CI/CD, observability, documentation, and performance.

· Evaluate and adopt AI-assisted development tools and modern engineering practices to improve software quality and team productivity.

Required Experience

· Demonstrated success designing, developing, and deploying enterprise SaaS applications using C# and .NET.

· Track record of leading complex technical initiatives from architecture through production.

· Strong experience with microservices, REST APIs, and asynchronous messaging.

· Deep hands-on experience building cloud-native solutions in Microsoft Azure.

· Strong SQL Server performance tuning and React/TypeScript development skills.

· Experience modernizing enterprise applications and migrating legacy frontend frameworks to React.

· Experience with CI/CD, automated testing, code reviews, and engineering best practices.

Who Will Thrive Here

Beyond technical expertise, you will be a great fit if you:

Think like an owner and take personal pride in the success of the product.
Take initiative to improve systems, processes, and code quality without waiting for permission.
Are excited by the opportunity to help build a growing company, not just complete assigned work.
Are naturally curious, continuously learning new technologies, and enjoy raising the baseline of the entire team.
Lead by personal example and through technical excellence.

Preferred Technical Experience

Experience with DevExtreme React Components and/or legacy Knockout.js.
Experience with Docker and Kubernetes.
Azure Service Bus, RabbitMQ, Kafka, or distributed caching (Redis).
SignalR or real-time communication technologies.
Active use of AI-assisted tools (GitHub Copilot, Cursor, ChatGPT) within daily engineering workflows.

Our Technology Stack

Backend: C#, .NET 8+, ASP.NET Core, SQL Server, Entity Framework Core, Microservices & Messaging.
Frontend: React, TypeScript, DevExtreme React, legacy Knockout.js (migrating).
Cloud & DevOps: Microsoft Azure, Azure DevOps, Git, CI/CD Pipelines, Docker (preferred).

Why Join Rebus?

Founder-Led, Engineering-First: Work directly with technical founders who remain actively involved in architecture, software development, product direction, and technical decision-making.
High Impact: Join a small, agile engineering team where your ideas, technical leadership, and code directly shape a platform that enterprise customers rely on every day.
Shape the Future: Help lead the modernization of a mature enterprise SaaS platform while building a company—not just shipping features.

Pay: $130,000.00 - $160,000.00 per year

Benefits:

401(k)
401(k) matching
Paid time off

Work Location: In person

Quick Apply

Refine Your Search

back end developers jobs in denver, co

Lead Software Engineer (.NET / Azure / React)

Back End Developer - AI Trainer

Backend Software Engineer - AI Trainer

Back End Developer - AI Trainer

Infrastructure Engineer - Db2 Support

Java Software Engineer Level 2 or 3

Azure/.Net Developer

Junior Front-End Developer

Back-end Ground Software Engineer III - Lunar Permanence

Front-End ASP.Net Developer

.Net Developer @ Denver,CO

Software Engineer I

Backend Engineeer

Junior Application Developer

Software Engineer II

Software Engineer, Platform - Denver, CO, USA

Server Software Developer

Full Stack Developer

MERN / MEAN Developer

Backend C++ Josh System Developer

I want to receive the latest job alert for back end developers in denver, co

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