Backend Development jobs in Boulder, CO

Remote

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Today

Overview GovCIO is seeking a Ruby on Rails Backend Developer to design, build, and maintain backend services for VA.gov. This role is primarily focused on Ruby/Rails backend engineering, API development, system reliability, and integration work. You'll collaborate closely with cross-functional teams and contribute to AI-enabled enhancements where they provide clear user value. This is a fully remote position open to candidates within the Continental United States (CONUS). Responsibilities Back

Sponsored

Full-time

USD 140,000.00 - 150,000.00 per year

Backend Developer Application Development Technical Lead Analyst Vice President

Remote or Jersey City, New Jersey

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Today

Applications Development Technology Lead Analyst The Applications Development Technology Lead Analyst is a senior level individual contributor responsible for establishing and implementing new or revised application systems and programs, with a strong focus on hands-on development and modern DevOps processes. This role requires deep technical expertise and leadership within the Technology team to drive high-quality, resilient, and efficiently delivered software solutions. The overall objective

Full-time

USD 142,320.00 - 213,480.00 per year

Senior Greenfield .NET Developer/Boulder/$160k

Boulder, Colorado

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Today

A growing SaaS company, in Boulder, is looking for a Senior level developer to bring onboard. They are adding new features to their industry leading software solutions used by companies to manage all aspects of their revenue generation. Candidates should have over 7 years of experience building Microsoft web applications and recently worked with C#, newer versions of .NET (.net 8 is preferred), JavaScript, building REST APIs, and working with SQL or PostreSQL. This role is fully onsite, 5 days p

Easy Apply

Full-time

$140000 - $165000

Software Engineer, Platform - Arvada, USA

Arvada, Colorado

•

Today

The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify's text-to-speech products to turn whatever they're reading - PDFs, books, Google Docs, news articles, websites - into audio, so they can read faster, read more, and remember more. Speechify's text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple nam

Full-time

USD 140,000.00 - 200,000.00 per year

Software Engineer, Platform - Thornton, USA

Thornton, Colorado

•

Today

Full-time

USD 140,000.00 - 200,000.00 per year

SYSTEMS SOFTWARE DEVELOPER 4

Denver, Colorado

•

Today

Position Responsibilities may include: Drive technical decision-making, ensuring alignment with business objectives and industry best practices Collaborate with cross-functional teams, including product management, operations, and design, to define product specification and deliver high-quality solution Collaborate with internal team members and ensure to meet product deadlines Identify, prioritize and execute tasks in the software development lifecycle Review and debug code Determine best metho

Full-time

USD 103,980.00 per year

SYSTEMS SOFTWARE Developer 5

Denver, Colorado

•

Today

The Systems Software Developer 5 will serve as a technical leader and innovator in our organization. As a Principal Software Developer, you will involve shaping the architecture, driving technical strategy, and delivering complex, high-impact solutions that align with our business goals. In addition, you will act as a mentor to Systems Software teams, collaborate with stakeholders across disciplines, and ensure the delivery of scalable, secure, and reliable software systems. Position Responsibi

Full-time

USD 132,540.00 - 165,705.00 per year

Golang Developer

Hybrid in Englewood, Colorado

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17d ago

Location: Englewood, CO (4 days/week onsite, 1 day remote) Job Type: 6-month contract (possibility to extend for multiple years) Compensation: Up to $67/hour W-2 or $75/hour C2C/1099 Benefits: Medical, dental, vision, LTD/STD, HSA/FSA, term life, and supplemental health insurances (e.g., Aflac) for all employees (and their families if needed). Summary of the Role: A software developer is needed to join a team focused on developing a new platform. This individual will be a key contributor to buil

Easy Apply

Contract

Up to $75

Production Support Engineer (Full Stack Engineer)

Remote or Denver, Colorado

•

Today

Production Support Engineer (Full Stack Engineer) Denver, CO (Remote) Full-Time JPC - 20123 Our client is seeking a hands-on Production Support Engineer, effectively operating as a Full Stack Engineer, to support and enhance mission-critical production systems. This role requires strong technical depth across the stack, a proactive mindset, and the ability to operate in a fast-paced, production-driven environment. The ideal candidate will not only resolve production issues but also contribu

Easy Apply

Full-time

$$90k - $100k/yr

Python / Java / C++ Engineer Code Validation | $150/hr Remote

Remote or Hybrid

•

13d ago

Position: Software Engineering Expert Type: Hourly contract Compensation: $50 $150 per hour Location: Remote Commitment: Part-time availability with flexibility for increased hours Role Responsibilities: Review and refine AI-generated prompts, responses, and code Validate algorithms and software concepts for technical accuracy Provide structured, actionable feedback on solution quality and clarity Tag and organize content by topic, difficulty, or language Support benchmarking efforts to evalua

Easy Apply

Contract

$$50-$150/hr

IT Manager, Warehouse Operations

Englewood, Colorado

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Today

Job Description We Deliver the Goods:Competitive pay and benefits, including Day 1 Health & Wellness Benefits, Employee Stock Purchase Plan, 401K Employer Matching, Education Assistance, Paid Time Off, and much moreGrowth opportunities performing essential work to support America's food distribution systemSafe and inclusive working environment, including culture of rewards, recognition, and respectHybrid or Remote work opportunities availablePosition Summary The IT Manager, Warehouse Operation

Full-time

USD 115,000.00 - 150,000.00 per year

Java backend developer - Initially Remote - CTH

Remote or Hybrid in Bentonville, Arkansas

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7d ago

Focus: Primarily backend development in Java Spring BootExposure to frontend (React Native) is a bonus but not requiredQualifications: Solid backend engineering and coding fundamentalsExperience building APIs, microservices, and distributed systemsAbility to collaborate within cross-functional teams

Easy Apply

Contract

Depends on Experience

Sr Backend Developer

Remote

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7d ago

BDR Solutions, LLC, (BDR) supports the U.S. Federal Government in successfully achieving its mission and goals. Our service and solution delivery starts with understanding each clients end-state, and then seamlessly integrating within each Agencys organization to improve and enhance business and technical operations and deployments. BDR is seeking a Sr. Back-End Developer to join our growing team! This position will be performed virtually from the individuals home office working on EST time sche

Easy Apply

Full-time

135000 - 150,000

Full Stack Developer

Englewood, Colorado

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Today

Job#: 3027390 Job Description: Position Overview The Senior Full Stack Software Engineer plays a key role in designing, developing, and maintaining enterprise-grade applications using modern technologies and best practices. This role requires deep expertise in backend development with Java, complemented by hands-on experience in front-end technologies. The engineer will collaborate closely with cross-functional teams, contribute to architectural decisions, and ensure high-quality, scalable, and

Easy Apply

Full-time

Sr. Software Engineer

Remote

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3d ago

Software EngineerLocation: Remote | ContractJoin a highimpact technology organization building cloudnative services that support AIenabled enterprise applications. This role focuses on handson software engineering, connecting modern AI capabilities with existing systems through secure, scalable backend services. You will collaborate closely with engineering and product teams to deliver reliable solutions in evolving cloud environments. Due to client request, candidates must be eligible to work i

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Contract

Depends on Experience

Hiring: Odoo Full Stack Developer (Python + JavaScript)

Remote

•

2d ago

Apply Hiring: Odoo Full Stack Developer (Python + JavaScript) Contract: 6+ Months Location : Sacramento, CA (Open to Remote) We re looking for a hands-on Odoo Developer to join a high-impact team working on enhancing an existing open-source product. If you love building, collaborating across global teams, and working across the full stack this one s for you What You ll Work On: Full-stack development using Python (backend) + JavaScript (frontend)Enhancing an Odoo-based platform using the Owl fr

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Contract

Depends on Experience

Machine Learning Engineer

Remote or Brooklyn, New York

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Today

RESPONSIBILITIES: Kforce has a client in Brooklyn, NY that is seeking a Senior Machine Learning Engineer to design and build scalable machine learning systems that power ad relevance, retrieval, and user engagement across digital platforms. Responsibilities: * Develop and productionize applied machine learning models to improve relevance and performance * Build and maintain scalable backend services and distributed data pipelines * Support the full ML lifecycle, including training, deployment,

Contract, Third Party

$72 - $82 hourly

Software Engineer / VB.NET / Open to Remote

Remote or Chicago, Illinois

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Today

This manufacturing technology company delivers tailored ERP solutions to 500+ clients. As they scale from a small to mid-sized business, they're hiring a .NET Developer to help manage growing demand and support the transition to Epicor's cloud platform. This is a full-time role open to remote candidates, or local to the Chicago area. The team needs an experienced .NET Developer who can hit the ground running with minimal training. Ideal candidates will have a strong background in Vb.Net, work we

Easy Apply

Full-time

$85000 - $115000

Senior .NET Developer

Remote

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23d ago

Senior .NET Developer Our team is looking for a Senior .NET Developer who enjoys building dependable software and contributing to well-structured engineering projects. This role focuses on developing and supporting applications built within the Microsoft ecosystem, with an emphasis on backend services, application performance, and scalable system design. You''ll work alongside a group of experienced engineers and technical leaders to design, enhance, and maintain applications that support critic

Easy Apply

Full-time

Depends on Experience

Fullstack AI Engineer

Remote

•

Today

A rapidly growing healthcare technology company is building an AI-driven platform that helps commercial teams in the medical device industry make smarter decisions using real-time data. This full-time role focuses on modern data pipelines, agentic AI systems, and full-stack development, supporting a product used by sales leaders across the country. This position offers the chance to work on production AI agents, not experiments. Engineers here shape how AI systems reason, manage context, and int

Easy Apply

Full-time

$180000 - $230000

Senior Full Stack React.js / Node.js Developer

Englewood, Colorado

•

Today

Description: Hybrid 4 days on-site in Englewood, CO The organization is a leading telecommunications and media provider serving over 26 million customers across 41 states under a nationally recognized brand. It ranks among the largest cable and pay TV operators in the United States and is also a significant residential telephone provider. Founded in 1993 and publicly traded on NASDAQ, the company employs approximately 98,000 people and maintains substantial assets. More information is availabl

Contract

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Backend Development jobs in Boulder, CO, USA