Senior backend developer jobs in niwot, co

Denver, Colorado

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Today

Job Title: Sr Backend Software Developer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US Anticipated Posting End: 11/28/2026 The Opportunity: CACI is seeking a Senior Backend Software Developer for the GEOINT Tradecraft Suite (GTS), a mission-critical platform delivering advanced geospatial intelligence capabilities to national security

Full-time

USD 108,400.00 - 227,500.00 per year

Senior Java Backend Developer

Remote

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25d ago

Senior Java Backend Developer Location: Remote must work Pacific Time (PST/PDT) hours Experience: 8+ years Employer: ZAPCOM Role Overview ZAPCOM is seeking a Senior Java Backend Developer to support a client engagement. The ideal candidate will have strong hands-on experience building scalable backend services, developing REST APIs, and delivering reliable applications in a distributed environment. Key Responsibilities Design, develop, and maintain backend applications using Java and Spring Boo

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Full-time

100,000 - 130000

Senior Backend .NET Developer

Remote

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Today

Job Title: Senior Backend .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop backend services and REST APIs using C# and .NET. Build business and domain logic using SOLID and Clean Architecture principles. Work with Entity Framework Core, LINQ, SQL Server, and Azure SQL. Design integrations with enterprise and third-party systems. Implement asynchronous processing, background services, and messaging. Work with Azure Service Bus and other messaging technologies. I

Full-time

Senior Backend Software Engineer

Boulder, Colorado

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Today

The Role: Due to team growth, we are seeking an experienced Software Engineer to join our Sat OS team, which develops the high-level operating system and file transfer layer for the spacecraft The successful candidate will play a crucial role in developing software for our satellite systems, contributing to the expansion and enhancement of our space and ground-based data transfer capabilities. Ideal candidates will embrace the commercialization of nanosatellite systems and adapt to low-cost, fa

Full-time

USD 130,000.00 - 171,000.00 per year

Senior Software Engineer - Backend C#

Louisville, Colorado

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Today

Overview We are seeking a full-time Senior Backend C# Software Engineer at Garmin's location in the Greater Denver area. In this role, you will be responsible for providing technical leadership and project planning for software development for TrainingPeaks products, applications, or systems new to Garmin as an individual contributor. Essential Functions Serves in a leadership capacity as an individual contributor for carrying out software development in C#, .NET, or other selected languages fo

Full-time

USD 133,500.00 per year

Senior Software Engineer - Backend PHP

Louisville, Colorado

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Today

Overview We are seeking a full-time Senior Backend PHP Software Engineer at Garmin's location in the Greater Denver area. In this role, you will be responsible for providing technical leadership and project planning for software development for TrainHeroic products, applications, or systems new to Garmin as an individual contributor. Essential Functions Serves in a leadership capacity as an individual contributor for carrying out software development in C#, Java, PHP or other selected languages

Full-time

USD 133,500.00 per year

Senior Back-End Engineer, Sports Platform

Denver, Colorado

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Today

Company Description We're one of the world's leading online gambling companies, revolutionising the industry since 2000. Founded by Denise Coates CBE, we now employ over 10,000 people and serve over 120 million customers in 26 languages. We empower our employees to push boundaries and explore new ideas, cultivating a culture that celebrates and rewards creativity. This offers employees a wealth of growth opportunities, giving them the opportunity to make a real impact in the world of online ga

Full-time

USD 125,000.00 - 155,000.00 per year

Django Backend Lead Developer

Remote or Jersey City, New Jersey

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Today

Job Title: Django Backend Lead Developer Location: Jersey City, NJ/Charlotte, NC (Remote) Job Summary We are seeking an experienced Django Backend Lead Developer to join our team. The ideal candidate will have a strong background in backend development, cloud technologies, and big data processing. This role involves leading technical projects, mentoring junior developers, and ensuring the delivery of high-quality solutions. Key Responsibilities Lead the development of backend systems using Djang

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Contract

Depends on Experience

Senior Backend Service Maintenance Engineer

Remote

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9d ago

Job Description: Senior Backend Engineer Service MaintenanceRole: Senior / Lead Backend Engineer Mode: Remote Key ResponsibilitiesMaintain and support production backend services, including incident triage, troubleshooting, and recovery. Perform service upgrades, security patches, dependency updates, and cloud infrastructure migrations. Monitor and optimize service reliability using alerts, logs, and dashboards. Reduce alert noise, resolve technical debt, and safely decommission unused services

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Contract

Depends on Experience

Lead Back-End Java Developer

Remote or Tampa, Florida

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Lead Back-End Java Developer in Tampa, FL. Summary: We're looking for an experienced Back-End Java Software Engineer to design and develop mission-critical applications supporting complex warehouse automation and material handling environments. This is a senior, hands-on engineering role focused on Java back-end development, system integrations, databases, distributed applications, and technical leadership. What You'll Do: * Design, devel

Full-time

$120,000 - $140,000 annually

Senior Software Engineer, Backend | Audit Product Team

Remote

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Today

Machinify is a leading healthcare intelligence company with expertise across the payment continuum, delivering unmatched value, transparency, and efficiency to health plan clients across the country. Deployed by over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify brings together a fully configurable and content-rich, AI-powered platform along with best-in-class expertise. We're constantly reimagining what's possible in our industry, creatin

Full-time

USD 200,000.00 - 230,000.00 per year

Senior Backend Software Engineer

Remote or San Francisco, California

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Today

Senior Backend Software Engineer Company Description Swish Analytics is a sports analytics, betting and fantasy startup building the next generation of predictive sports analytics data products. We believe that oddsmaking is a challenge rooted in engineering, mathematics, and sports betting expertise; not intuition. We're looking for team-oriented individuals with an authentic passion for accurate and predictive real-time data who can execute in a fast-paced, creative, and continually-evolving

Full-time

USD 150,000.00 per year

Senior Backend Engineer

Remote or Nashville, Tennessee

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Backend Engineer who will work across engineering, product, analytics, and operations to architect durable serverless systems, develop clean and reliable Python services, and power mission-critical workflows such as claims processing, eligibility ingestion, episode creation, provider search, and care coordination. Location: Remote within the U.S. The team is based near Stamford, Connecticut, opening an office soon near Nashville, TN

Full-time

$150,000 - $190,000 annually

Senior Backend Engineer

Remote or San Francisco, California

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Today

About Scribe Scribe is where exceptional people come to do the best work of their careers. More than 94% of the Fortune 500 use Scribe to own their specialized intelligence: the unique way their teams work, decide, and get things done. Our Specialized Intelligence platform automatically captures how work happens and turns it into a living asset for people and AI agents. We're growing fast. Since our founding in 2019, we've reached 7 million users across 600,000 businesses. Based in San Francis

Full-time

USD 150,000.00 - 240,000.00 per year

Senior Backend Engineer

Remote or Stamford, Connecticut

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Today

RESPONSIBILITIES: Kforce has a client near Stamford, CT that is seeking a Senior Backend Engineer who will work across engineering, product, analytics, and operations to architect durable serverless systems, develop clean and reliable Python services, and power mission-critical workflows such as claims processing, eligibility ingestion, episode creation, provider search, and care coordination. Location: Remote within the U.S. The team is based near Stamford, Connecticut, and candidates must be

Full-time

$150,000 - $190,000 annually

*Senior Full Stack Engineer (Backend focused - Nodejs, Javascript, AWS exp.) - W2 role

Remote

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19d ago

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details Posi

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Contract, Third Party

Depends on Experience

Senior Backend Software Engineer

Remote or San Francisco, California

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Today

Overview Working at Atlassian Atlassians can choose where they work - whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity. Responsibilities What You'll Do: Drive large, complex projects autonomously, from technical design to launchTackle complex architecture challenges, apply architectural standards and start using

Full-time

USD 180,000.00 - 235,000.00 per year

Senior Backend Engineer, Platform Enablement

Remote

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Today

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier

Full-time

USD 156,800.00 - 235,200.00 per year

Senior Backend Engineer | Accounts Receivable

Remote or New York, New York

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Today

About Ramp Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $275B in annualized spend flows in and out of 85,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about

Full-time

USD 204,000.00 - 280,000.00 per year

Senior Backend Engineer | Token Spend Management

Remote or New York, New York

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Today

Full-time

USD 204,000.00 - 280,000.00 per year

Senior backend developer jobs in Niwot, CO 80503, USA