Backend Development jobs in Boulder, CO

Boulder, Colorado

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Today

Join the Market Leader in Electric Power Data and Analytics Solutions The electrical grid is the largest and most complicated machine ever built. Yes Energy's industry-leading electric power trading analytics software provides real-time visibility into the massive amount of data generated by the North American electrical grid daily. Our unique and innovative view of the data informs real-time trading decisions and mid-to-long-term investment decisions that keep utility prices low, support the e

Full-time

USD 95,000.00 - 115,000.00 per year

Backend Engineer

Denver, Colorado

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Today

Quindar Quindar builds modern, cloud-native satellite mission operations software with a simple mission: to operate satellites like servers. Our platform replaces fragmented, legacy ground systems with an integrated, automation-driven approach that brings modern software velocity to space operations. We're a small, fast-moving team with deep aerospace and software roots, energized by big challenges and motivated by the impact we have on real missions in this next chapter of the Space Age. If y

Full-time

USD 120,000.00 - 180,000.00 per year

Staff Software Engineer, Screenings & Verifications

Denver, Colorado

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Today

About CheckrCheckr is building the data platform to power safe and fair decisions. Over 140,000 companies and millions of people rely on Checkr for AI verification in the moments that matter most: getting a new job, a new place to live, a car ride, childcare, even a date. Customers include Uber, Pennymac, Airbnb, Doordash, and Anthropic. We're a team that thrives on solving complex problems with innovative solutions that advance our mission. Checkr is recognized on Forbes Cloud 100 2025 List an

Full-time

USD 224,000.00 - 264,000.00 per year

Sr. Optimizely Developer

Denver, Colorado

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Today

Join a fast-moving digital marketing team that is investing heavily in modern web technology, experimentation, and data-driven growth. This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS solutions, launching sophisticated experiments, and using AI-assisted tools to work faster and smarter. Responsibilities Build and maintain reusable components, page templates, and content models within Optimizely CMS to help marketing teams launch web pages effici

Full-time

USD 79,000.00 - 130,000.00 per year

Full Stack Engineer

Denver, Colorado

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Today

About Quindar Quindar builds modern software for satellite operations, helping teams operate spacecraft with greater speed, clarity, and reliability. We work at the intersection of aerospace, software, and operations, supporting customers who need dependable tools for complex, real-world missions. About the Role Quindar is hiring a Full Stack Engineer to develop ground satellite operations software using Python, AWS, and modern web technologies. In this role, you will support mission-unique s

Full-time

Software Developer

Englewood, Colorado

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Today

Job#: 3044408 Job Description: Software Developer Location: Englewood, Colorado (Onsite) Role Overview Our organization is seeking a Software Developer to join a team focused on a network test automation platform. This role involves designing, coding, testing, and documenting system and application programs. This position will contribute to the evolution of the platform to support AI-driven workflows. The ideal candidate will be prioritized based on strong problem-solving abilities, high apt

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Full-time

$35 - $48 per hour

Senior Software Development Engineer (Back-end)

Remote

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Today

Filevine is a Legal AI company delivering Legal Operating Intelligence for the future of legal work. Grounded in a singular system of truth, Filevine brings together data, documents, workflows, and teams into one unified platform-where modern legal work happens with clarity and consistency. Powered by LOIS, the Legal Operating Intelligence System, Filevine connects context across every matter to transform legal operations from reactive to proactive. LOIS reads, understands, and reasons across y

Full-time

USD 160,000.00 - 190,000.00 per year

Software Engineer (C#, .Net, SSAS, ETL, Datawarehouse)

Denver, Colorado

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Today

Job Description Ready to Help Shape the Future of Legal Tech?! At Litera, we don't just build software, we transform how the world's top law firms operate. Every day, we Raise The Bar for what's possible through AI, innovation, and solutions that power millions of legal professionals worldwide. If you're energized by scale, real impact, and meaningful challenges, you'll feel right at home here. Where You'll Work This is a hybrid role based in Denver, CO with the expectations to be in office at

Full-time

USD 120,000.00 - 150,000.00 per year

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 110,000.00 - 120,000.00 per year

Lead Backend Java Engineer (Kotlin)

Remote

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18d ago

About Evolutyz Corp: Evolutyz Corp, a vibrant, award-winning, woman-owned IT consulting firm headquartered in Naperville, IL. We are passionate about innovation and committed to driving business transformation with our custom technical solutions. As a certified MBE enterprise, we promote a diverse and inclusive work environment where your ideas are valued. At Evolutyz, youll find the perfect opportunity to grow your career, make an impact, and collaborate with a team that supports your professio

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Full-time

60 - 70

Mid Full Stack Engineer (5000) (Secret) (Broomfield, CO)

Boulder, Colorado

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Today

Outside Analytics has recently become a proud subsidiary of SMX, marking an exciting collaboration that enhances our collective capabilities to deliver cutting-edge digital transformation solutions. Are you interested in the next generation of Space Force Remote Sensing capabilities? At Outside Analytics we're on the ground floor of helping across the future remote sensing ecosystem across all orbital regimes (LEO, MEO, HEO, and GEO)! We build, integrate, and operationally support our customer's

Full-time

USD 123,800.00 - 206,300.00 per year

Sr Backend Engineer (Python)

Remote

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5d ago

Role 1: Senior Backend Engineer Level: Senior (8+ years) Working hours: Minimum 5 hours overlap with US Pacific business hours Position Summary This engineer will build and operate the backend services behind CLIENTs AI features - the APIs, retrieval paths, and data layers that turn a model call into a product our customers can rely on. This is hands-on delivery work on a small team: the engineer owns services end to end, from schema and endpoint design through deployment and production behavior

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Contract

50 - 70

Senior Full Stack .NET Developer_ W2

Remote

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2d ago

Senior Full Stack .NET Developer Location: WA / TX Remote Type: Contract Experience: 15+ Years Required Skills 15+ years of experience in .NET developmentStrong C#, ASP.NET, .NET Core / .NET 6/7/8Hands-on Azure experience: Azure Functions, App Services, Service Bus, Azure DevOps, CI/CDStrong Backend Development and Microservices ArchitectureExpert-level SQL Server: database design, stored procedures, performance tuningMiddle-Tier Architecture, Entity Framework, and Design PatternsStrong experi

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Full-time

Up to 45

Senior .NET Developer

Remote

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3d ago

Required Skills15+ years of experience in.NET developmentStrongC#, ASP.NET, .NET Core / .NET 6/7/8Hands-onAzureexperience: Azure Functions, App Services, Service Bus, Azure DevOps, CI/CDStrongBackend DevelopmentandMicroservices ArchitectureExpert-levelSQL Server: database design, stored procedures, performance tuningMiddle-Tier Architecture, Entity Framework, and Design PatternsStrong experience withREST APIs, Web Services, SOAP/WCFAngular or Reactexperience is a plusAI experienceis highly prefe

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Contract

Senior Full Stack Developer

Remote

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20d ago

Senior Full Stack Developer Remote, Dallas, TX (Need to go Onsite for Final Interview) Note: Need experience with Micro Frontend and Playwright Position Summary We are seeking a highly skilled Senior Full Stack Developer to design, develop, and maintain scalable, cloud-native enterprise applications. The ideal candidate will have strong experience across both frontend and backend development, building modern web applications, RESTful APIs, microservices, and Micro Frontend architectures while de

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Third Party, Contract

$0 - $0

Staff Software Engineer, Integrations

Denver, Colorado

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Today

Full-time

USD 224,000.00 - 264,000.00 per year

Senior Full Stack Engineer

Remote

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Today

Job Description A fast-growing SaaS company is looking for a Staff Software Engineer to join their remote team in Toronto. You'll help build and scale a modern platform that streamlines commerce, operations, and customer workflows using TypeScript, Node.js, React, GraphQL, and AI-assisted development tools. This is an opportunity for a highly autonomous engineer who enjoys solving complex technical challenges, owning projects end-to-end, and working closely with stakeholders and customers. You

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Full-time

$150000 - $200000

Golang Developer

Remote

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5d ago

We are seeking an experienced Golang Developer with strong hands-on expertise in Golang, PostgreSQL, REST APIs, and microservices to design, develop, and maintain scalable backend applications and services. The ideal candidate will have solid backend development experience and strong database skills. Experience working with Java and React is a plus. Key ResponsibilitiesDesign, develop, and maintain scalable backend applications using Golang / Go.Develop, optimize, and maintain database solutions

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Contract

Senior Backend Engineer // Fully Remote // TypeScript Node.JS

Remote

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Today

A fast-growing B2B infrastructure platform is expanding its engineering team and looking for a Senior Backend Engineer to join one of its most critical and high-velocity teams. This is a full-time, 100% remote opportunity built around a TypeScript, Node.js, and Nest.js stack, with microservice architecture at the core. The platform powers real-time services for a rapidly growing merchant base and operates at meaningful scale. EST hours are required. This team owns more services than any other i

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Full-time

$170000 - $200000

Engineering Manager, Artificial Intelligence (AI) Required, Work From Home - M

Remote

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Today

Engineering Manager, Artificial Intelligence (AI) Required, Work From Home We are looking for an Engineering Manager to lead a high-performing engineering team building and scaling products used by millions of users across the region. This role is for a strong technical leader who can lead engineers, make sound architecture and engineering decisions, and drive products and systems from ideas to production. The Engineering Manager will be responsible for both the quality of the engineering team

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Full-time

$165,000 - $200,000

Backend Development jobs in Boulder, CO, USA