Senior Backend Developer Jobs in Longmont, CO

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Senior Backend Developer (.NET / Azure)

JJ Keller & Associates, Inc.

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Remote

Full-time

Sr. Backend Developer (Azure) Requisition #: 19526 / 19527 Functional Area: Software Development Employment Type: Full-Time Work Options: Remote / Work from Home in the US #LI-Remote Work Hours: Standard Business Hours Why work at J. J. Keller? Latest MS tech stack: Our projects use the latest MS tech stack, Microservices, CI/CD, Automated Testing, Cloud Architecture and Predictive Analytics / AI / ML.Emerging technologies: We strive to keep current with emerging technologies to prevent platfor
Posted 18 days ago | Updated moments ago

Senior Back-End Developer

Delmock Technologies, Inc

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Remote or Lanham, Maryland, USA

Full-time

About Our Company: Delmock Technologies, Inc. (DTI), is a leading HUBZone business in Baltimore, known for delivering sophisticated IT (Information Technology) and Health solutions with a commitment to ethics, expertise, and superior service. Actively engaged in the local community, DTI creates opportunities for talented residents while maintaining a stellar reputation as an award-winning contractor, earning accolades like the Government Choice Award for IRS (Internal Revenue Service) Systems Mo
Posted 15 days ago | Updated 8 hours ago

Sr. Application Developer - Software Engineer

Mastech Digital

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Westminster, Colorado, USA

Contract

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking a Sr. Application Developer - Software Engineer for our client in the Consulting Service domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a Contract position, and the client is looking for someone to start immediately. Duration: 6 Months Contract Location: Onsite in Denver, C
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Posted 13 days ago | Updated 2 hours ago

Senior Back End Developer (Node.js)

InfiCare Technologies

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US

Contract

Position: Senior Back End Developer (Node.js) Location: Remote Mode of Hire: Contract Required Qualifications: 7+ years in backend software development. Proficient in Node.js and frameworks like Express.js. Experience with NoSQL databases (e.g., MongoDB) and SQL databases. Familiarity with agile methodologies Knowledge of version control systems like Git and the ability to collaborate with development teams using Git-based workflows. Experience with CI/CD tools. Familiarity with Azure DevOps.
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Posted 10 days ago | Updated 2 hours ago

Senior Back End Developer

Moorecroft Systems Inc.

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Remote

Contract

An exciting opportunity to grow and advance your career awaits! Moorecroft Systems is hiring for a Senior Back End Developer for a large, enterprise level client. This is a REMOTE position with a 5+ month contract. **Must have GitHub or Code Samples for review to be considered for this position** Must Have: 5+ years' experience in a statically typed language: Python, Java, Go, C, C++, C#, etc.2+ years' professional experience specifically with Golang.Experience with retrieving data from REST API
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Posted 60+ days ago | Updated 2 hours ago

Sr Backend Developer - Java/Kotlin/Scala or Rust Japanese language is a MUST

CSM Technologies Inc

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Remote

Full-time, Third Party

Japanese fluency5+ years using statically-typed languages such as Java/Kotlin/Scala, C/C++, or Rust to ship production codeExperience with GraphQL APIs, including query tuning and managing multiple resolversA track record of shipping performant API integrations and interfacesExperience with a major cloud provider such as Google Cloud Platform, AWS, or AzureExperience architecting, building, and operating cloud-native backend servicesA flexible attitude and entrepreneurial mindset. Be willing to
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Posted 30 days ago | Updated 30 days ago

Ex-Amazon only - Sr. Java backend developer

O3 Technology Solutions

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Remote

Contract, Third Party

This role is open for people who have worked with Amazon in the past and is remote. Required Skills: Java Proficiency: Extensive experience in Java programming, minimum 10 years.Object-Oriented Design: Mastery of object-oriented design principles.System Architecture: At least 1 year of experience in designing and architecting systems, considering factors like reliability, scalability, and patterns.Technology Expertise: Proficiency in Spring framework, Service-Oriented Architecture (SOA), Continu
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Posted 4 days ago

SAP BPC Backend Developer

Randstad Digital

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Remote or Culver City, California, USA

Contract

job summary: 100% telecommute. Skills: Finance Planning location: TELECOMMUTE, California job type: Contract salary: $50.00 - 58.50 per hour work hours: 8am to 4pm education: No Degree Required responsibilities: BPC script logic and BADI implementation: Responsible for creating and implementing BPC script logic and BADI implementations to meet specific business requirements. This will involve designing and developing custom business rules, calculations, and other logic. strong ABAP experie
Posted 13 days ago | Updated 1 hour ago

Senior Java Developer - backend

Proactive Staffing

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Remote or Cherry Hill, New Jersey, USA

Contract, Third Party

Senior Java Developer - backend The Senior Software Engineer (backend) position is responsible for writing and testing enterprise-level code in Java environment. This role requires 6+ years solid experience in Java along with strong attention to detail and problem-solving abilities. Primary Responsibilities Develop backend code for applicationsReview and validate the requirements and functional specificationsWork closely with Agile Team Coordinators and Business Analysts to understand requireme
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Posted moments ago

Senior Backend .NET Developer

TOPSYSIT

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Remote

Contract

#W2 or 1099 role for .NET Backend DeveloperWarm Greetings!! This is Sundeep from TOPSYS IT. Currently, We are seeking a Senior Backend .NET Developer role, and it is 100% remote. Work Experience: 10+ years Job Title: SENIOR LEVEL BACK END .NET DEVELOPER with (MUST HAVE both SharePoint Online + SPFx with react). MUST HAVE ALL OF THE ITEMS BELOW, please do not send unless the person has all of the items below: senior developer strong in back-end C#/.Net developmentMust have a strong SharePoint On
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Posted 4 days ago

Sr. Software Developer- Backend

Kforce Technology Staffing

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Remote or Houston, Texas, USA

Contract, Third Party

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Software Developer - Backend in Houston, TX. Summary: As a Senior Backend Developer, you will play a crucial role in designing, developing, and maintaining high-quality C# applications. Your expertise in the .NET Framework, dotnetcore, and Microsoft Visual Studio will be essential as you work on building scalable and robust solutions. You will leverage your experience with Web APIs, JSON, and message queuing to develop integrated sy
Posted 11 days ago | Updated moments ago

Senior Application Developer, Back End

Sherwin-Williams

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Remote or Cleveland, Ohio, USA

Full-time

JOB DESCRIPTION The Senior Application Developer, Back End is responsible for designing, building, and maintaining the server-side aspect of digital platforms, such as event-driven services, web applications and APIs. The role requires a disciplined and strategic individual capable of solving complex technical problems using their strong coding and programming skills to ensure that back-end systems run smoothly and can integrate effectively with other components of a digital platform. The incum
Posted 4 days ago | Updated 7 hours ago

Senior DBT Developer

Mastech Digital

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Remote or Dallas, Texas, USA

Contract

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking a Senior DBT Developer for our client in the Consulting domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a Contract position, and the client is looking for someone to start immediately. Duration: 12 Months Contract Location: Remote Salary: $60.00-$70.00/Hourly Role: Senior DB
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Posted 5 days ago | Updated 2 hours ago

Senior FrontEnd Developer (REACT)

Randstad Digital

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Remote or Woodbridge Township, New Jersey, USA

Full-time

job summary: Seeking a Senior Front End REACT Developer to become a member of a newly formed project team. Financial services client has a legacy application which manages and maintains employee records. The legacy application technology platform has outlived its useful lifespan and is in need of a rewrite. Client seeks a partner to re-write this application using modern technologies and incumbent frameworks supported within the client ecosystem. Namely, the application should include a React
Posted 19 hours ago | Updated 1 hour ago

ServiceNow HAM Pro Architect / Sr Developer

STAND 8

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Remote

Contract

STAND 8 provides end to end IT solutions to enterprise partners across the United States and with offices in Los Angeles, New York, New Jersey, Atlanta, and more including internationally in Mexico and India. Are you an expert ServiceNow HAM Pro Architect and Developer ready to make an incredible impact with a new greenfield global instance? Come and join us in implementing HAM Pro into a brand-new ServiceNow instance within our global Media & Entertainment client! Our technology solutions team
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Posted 4 days ago | Updated 3 hours ago

Staff/Senior C++ developer

Randstad Digital

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Remote or Portland, Oregon, USA

Full-time

job summary: We are looking for an experienced C++ developer who enjoys the challenges and rewards of being a crucial member of a small, experienced team at a fast-growing cloud data platform startup. At Hydrolix, you'll find a uniquely fulfilling opportunity to see your work in production powering large scale data infrastructure. Your contributions will directly impact our customers on a massive scale, shaping the future of our core product. Our customers, typically processing billions of even
Posted 5 days ago | Updated 1 hour ago

Senior Node.js Developer

Pyramid Consulting, Inc.

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Remote

Contract

Immediate need for a talented Senior Node.js Developer. This is a 06-08+ Months Contract opportunity with long-term potential and is located in U.S.(Remote). Please review the job description below and contact me ASAP if you are interested. Job ID:24-41971 Pay Range: $70 - $75/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Responsibilities: Working on node.js, typescript an
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Posted 3 hours ago

Software Developer - Senior

Randstad Digital

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Remote or Austin, Texas, USA

Contract

job summary: Will interpret written requirements and technical specifications for software solutions to business problems. Will develop software based on the technical specifications. Will analyze and investigate problems with software solutions that have been reported by clients and document the results of their investigation(s). Will perform maintenance of software and correct defects th at have been identified during the maintenance process. Will run unit tests on software they create, implem
Posted 13 days ago | Updated 1 hour ago

Sr. Infor Syteline (CSI) Developer

Oscar Technology

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Remote

Full-time

Job Title: Senior Infor SyteLine Developer We are looking for a highly skilled Senior Developer with deep expertise in Infor SyteLine ERP (CloudSuite Industrial) to join our dynamic team. As a key player, you will contribute to the complete software development lifecycle, ensuring the ERP system and related applications operate seamlessly and meet evolving business needs. This role provides a unique opportunity to work on cutting-edge solutions, customizing and optimizing the SyteLine ERP, Fact
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Posted 13 days ago | Updated 3 hours ago

Senior Workday Developer

Korn Ferry

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Remote

Contract

Job Title: Senior Workday Developer Location: Remote (End Client Based in North Carolina) Reports To: Manager of Development and Integration Engineering Employment Type: Contract/Project-Based POSITION OVERVIEW: We are seeking a highly skilled Senior Workday Developer to join our dynamic team on a contract/project basis. The successful candidate will work remotely, collaborating closely with our Enterprise Architect and a dedicated team of API developers. This role focuses on enhancing and main
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Posted 28 days ago | Updated 3 hours ago