Senior Backend Developer jobs in Niwot, CO

Remote or Maumee, Ohio

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Today

Job Summary: The Senior Back-End Software Developer will be responsible for designing and developing scalable, secure, and high-performance back-end web-based applications and services, including maintenance, testing, and debugging. In addition to development, this individual will collaborate with a team of developers and occasionally assist junior developers in all facets of software development. Job Goals: Contribute to all stages of the software development lifecycle, from feasibility, soluti

Sponsored

Full-time

Compensation information provided in the description

Senior Backend Developer

Remote

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30+d ago

Location: Remote (U.S.)Employment Type: Full-Time Security Clearance Requirements- U.S. Citizenship is required.Must have the ability to obtain and maintain a DHS Public Trust clearance.Preference will be given to candidates with an active or recently held ICE or CBP Public Trust clearance, allowing for a faster onboarding process.Candidates must be able to successfully complete all required background investigations and security screening necessary to support federal government contracts.About

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Full-time

Depends on Experience

Senior Java Backend Developer

Remote

•

Today

Job Title: Senior Java Backend Developer Location: Remote Candidate must be from LATAM Job Overview: We are looking for an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications and distributed systems. The ideal candidate will have strong hands-on experience with Java, Spring Boot, REST APIs, microservices, SQL/NoSQL databases, messaging systems, AWS, Docker, and Kubernetes, along with a solid understanding of data structures,

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Third Party

Senior Backend Software Developer

Remote

•

Today

ABOUT SLATE At Slate, we're building safe, reliable vehicles that people can afford, personalize and love-and doing it here in the USA as part of our commitment to reindustrialization. The spirit of DIY and customization runs throughout every element of a Slate, because people should have control over how their trucks look, feel, and represent them. WHO WE ARE LOOKING FOR Slate is looking for a Senior Backend Software Developer to help make our software development in the electric vehicle spa

Full-time

USD 135,000.00 - 190,000.00 per year

Senior Java Backend Developer – Remote

Remote

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9d ago

Senior Java Backend Developer RemoteWork Arrangement: Remote Job Type: Contract Contract Duration: 12 Months Employment Type: W2 Only (No C2C) Interview RequirementAn in-person face-to-face interview is required as part of the selection process. Specific interview location and details will be discussed during the recruiter screening call. Job DescriptionWe are seeking an experienced Senior Java Backend Developer to design, develop, enhance, and support real-time Java applications for a high-pe

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Contract

50 - 55

Senior Python Backend Developer

Remote

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7d ago

Role: Senior Python Backend Developer Location: East Hartford, CT - Remote Duration: Long Term Contract Relevant Experience: 9+ Years We are seeking an experienced Python Developer with 9+ years of experience in designing, developing, and maintaining modern, data-driven applications. The ideal candidate will have strong expertise in Python development, API development, SQL programming, and cloud-based application development. This role focuses on building scalable backend services, integrating

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Contract, Third Party

Depends on Experience

Senior Java Backend Developer-(EXp-10+ Years) (AI & Microservices)-Full time -Remote

Remote

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4d ago

We are seeking an experienced Senior Java Backend Developer with 10+ years of experience in designing and developing scalable, high-performance enterprise applications. The ideal candidate will have strong expertise in Java, Spring Boot, Microservices, REST APIs, cloud technologies, and hands-on experience integrating AI/Generative AI capabilities into backend applications. This role requires a strong technical background in backend architecture, distributed systems, API development, system inte

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Full-time

Depends on Experience

Back-end developer, Java

Remote

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5d ago

Senior Back-End Developer (Cloud & IoT) We''re looking to connect with experienced Back-End Engineers who enjoy building the cloud platforms behind connected IoT products, smart devices, and real-time video applications. We''re looking for engineers with experience in: -Java backend development -AWS cloud services & scalable distributed systems -RESTful APIs powering mobile applications and connected devices -Kubernetes, DynamoDB & Git -Secure, high-performance cloud services -Automated testing

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Contract

$80

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, f

Full-time

USD 130,500.00 - 171,000.00 per year

Senior Backend Software Engineer - Java

Denver, Colorado

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18d ago

Job Description This position is not eligible for visa sponsorship, now or in the future. This position is hybrid in the following office locations: Cincinnati, OH (3 days) or Denver, CO (2 days) Ready to take your career global? Make your mark at one of the biggest names in payments. We're looking for a Senior Backend Engineer - Java to join our ever-evolving Launchpad team and help shape the future of global commerce. Launchpad is a Worldpay application designed to streamline merchant onboard

Full-time

USD 113,600.00 - 171,575.00 per year

Senior Backend Software Engineer - Java

Denver, Colorado

•

Today

Full-time

USD 113,600.00 - 171,575.00 per year

Senior Back-End Engineer, Sports Platform

Denver, Colorado

•

Today

Company Description At bet365, 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 9,000 people and serve over 100 million customers in 27 languages. Our focus on In-Play betting has solidified our market-leading position, offering an unmatched experience across 96 sports and 700,000 streaming events. With over 750 concurrent sporting fixtures at peak and more live sports streamed than anyone else

Full-time

USD 125,000.00 - 155,000.00 per year

Senior Backend and Integration Engineer (IT)

Remote or Denver, Colorado

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Today

Posting Date 07/22/2026 2000 16th St, Denver, Colorado, 80202-5117, United States of America Job Title: Senior Back-End & Integration Engineer Department: Enterprise IT Reports To (Title): Manager/Director, IT GENERAL PURPOSE OF THE JOB As a Senior Back-End & Integration Engineer at DaVita, you will architect, build, and scale the middleware, APIs, and enterprise integrations that power our public-facing digital platforms. This position prioritizes back-end engineering and systems integratio

Full-time

USD 85,000.00 - 135,000.00 per year

Senior Software Engineer - Backend (.Net)

Denver, Colorado

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18d ago

Job Description We are Worldpay. Our technology powers the world's economy and our teams bring innovation to life. We champion diversity to deliver the best products and solutions for our colleagues, clients and communities. If you're ready to start learning, growing and making an impact with a career in fintech, we'd like to know: Are you Worldpay? About the role: As a Software Engineer you could work with bleeding edge technology as you build innovative fintech products that change the way th

Full-time

USD 113,600.00 - 171,575.00 per year

Senior Software Engineer - Backend (.Net)

Denver, Colorado

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Today

Full-time

USD 113,600.00 - 171,575.00 per year

Backend Developer Level III

Remote or Dallas, Texas

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Today

Role Overview We are seeking a Lead Backend Engineer to design, build, and scale large-scale distributed systems supporting enterprise fulfillment platforms. This is a highly hands-on engineering role focused on Node.js, TypeScript, Azure, microservices, and distributed systems. The ideal candidate will have recent production experience building and operating resilient cloud-native backend systems and be comfortable with scalability, reliability, messaging, observability, failure handling, and

Full-time

USD 55.00 - 60.00 per hour

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

Senior Backend Engineer

Remote

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Today

Highlights: Location: Remote (CET hours preferred) Language: Russian-speaking team About Fundraise Up We're Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design. Our platform is tru

Full-time

Senior Backend Engineer

Remote

•

Today

Who we're looking for As a Senior Backend Engineer, you'll be joining an impactful team of highly skilled engineers who are building the core platform features and services to fuel our rapidly growing company! As a team, we are always working to continuously improve both our product and our craft. The Backend team will focus on developing world-class services and integrations, all the while ensuring to keep our apps secure, high-performing, and most importantly scalable (we're growing!). We're l

Full-time

USD 170,000.00 - 195,000.00 per year

Lead Backend Developer / Remote EST/CST No PST or MST

Remote

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11d ago

We are seeking aLead Backend Engineerto help design, build, and scale the large-scale distributed systems supporting enterprise fulfillment platforms. This is a highly hands-on engineering role for an experienced backend developer who enjoys solving complex distributed-systems problems, building resilient cloud-native applications, and taking ownership of systems operating at enterprise scale. This is aNode.js-first environment. Candidates must have substantial, recent, production-level experien

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Full-time, Third Party

60 - 65

Senior Backend Developer jobs in Niwot, CO 80503, USA