Web applications Jobs in Colorado

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Lead React Developer

Primetime Technologies Inc

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Remote

Contract

REQUIRED 7+ years previous experience working as a React.js developer. 7+ years experience in React.js, HTML, CSS3. Vast experience in JavaScript and React concepts, advanced front-end coding skills, and an expert level understanding of progressive web applications. Extensive experience on front-end development and demonstrated ability to work in a fast-paced environment. Passion for supporting, collaborating, and coaching engineering teams. Comfortable driving code reviews and operating as an
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Posted 21 hours ago

Sr. Java Developer (REMOTE)

RedRiver Systems L.L.C.

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Remote

Contract

Join this growing team developing software supporting new software development and integrations of acquired organization(s). This is an opportunity to grow within the organization and provide mentorship and development of other team members while creating elegant scalable solutions. You will develop one or more large complex web applications and create enhancements to existing applications to meet business requirements. Work with management and collaborate across teams to develop application req
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Posted 1 day ago | Updated 1 day ago

Quality Automation Test Engineer With Playwright and Selenium frameworks

Value Spectrum Technologies LLC

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Remote

Contract

We are seeking a skilled Quality Engineer with expertise in automated testing frameworks to join our dynamic engineering team. The ideal candidate will have hands-on experience with both Playwright and Selenium, and a passion for ensuring software quality through comprehensive testing strategies. Key Responsibilities Test Automation Development Design, develop, and maintain automated test suites using Playwright and Selenium frameworks Create robust end-to-end, integration, and regression test s
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Posted 2 days ago | Updated 2 days ago

C++ Developer

Zolon Tech Solutions Inc

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Remote

Contract, Third Party

C++ Developer Location: Remote Duration: Long Term DESCRIPTION OF PROJECT AND TASKS: Statement of Work: MeF is a platform for electronically filing returns with the IRS. It provides SOA based web services that filers use to submit returns and provides web applications for IRS users to work with the returns. MeF validates filed returns, determines their disposition, and interfaces with other IRS systems for downstream processing of the returns. IBM developed and enhanced MeF since 2001. Task Desc
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Posted 4 days ago

C++ / DB2 Developer with an Active MBI Clearance

1 Point System

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Remote

Contract

C++ / DB2 Developer with an Active MBI Clearance Location: Remote Term: 1 year+ MUST HAVE an Active MBI Clearance. It could be listed as IRS MBI or just MBI. MBI stands for Minimum Background Investigation. Statement of Work: MeF is a platform for electronically filing returns with the IRS. It provides SOA based web services that filers use to submit returns and provides web applications for IRS users to work with the returns. MeF validates filed returns, determines their disposition, and inte
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Posted 4 days ago

Full Stack Java Developer

Yom Solutions LLC

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Remote

Contract

Job Title: Full Stack Java Developer Location: Remote Duration: 12 Months Job Description: We are looking for an experienced Full Stack Developer with strong expertise in React.js, Micro Frontend architecture, and modern cloud-native technologies, especially within the AWS ecosystem. This role requires a hands-on engineer who can design, build, and maintain scalable, resilient, and modular web applications using a mix of frontend and backend technologies including Node.js or TypeScript, Python o
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Posted 22 days ago | Updated 1 day ago

Senior Software Developer

SparkHouse LLC

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Golden, Colorado, USA

Full-time

Senior Software Developer (recruiting for Sensera Systems | ;/strong> At Sensera Systems, we're passionate about empowering construction professionals to build with confidence. We're a fast-paced, fun, hungry, humble, and curious team dedicated to developing cutting-edge solutions for the construction industry. Our culture thrives on collaboration, innovation, and a shared commitment to making a real impact. We believe in continuous learning and growth, and we foster an environment where every t
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Posted 10 days ago

Full-stack Architect

Innova Solutions, Inc

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Remote

Contract

Let Volt help move you forward Volt is immediately hiring for Full-stack Architect in Remote As a Full-stack Architect, you will: Key responsibilities: Hands on Experience in C# .NET Core and CosmosDB.Hands on Experience in .NET, .NET Core Web Application Development, Web APIsGood to have experience in React, AngularJS, NodeJSIn-depth knowledge of Web Application Life CycleGood understanding of REST APIs, Data Structures.Must have knowledge on CI/CDGood debugging and analytical skills.Must know
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Posted 3 days ago

DevOps Engineer

SynergisticIT

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Remote

Contract

Our client, a large public sector organization, is seeking a DevOps Engineer for a remote, 12-month contract position. You will support the migration of an enterprise application from its current cloud environment to an on-premise server infrastructure. Job DescriptionThe DevOps Engineer will play a critical role in managing the implementation and configuration of hardware and software environments for various enterprise applications. The role involves gathering and analyzing system requirements
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Posted 31 days ago | Updated 26 days ago

Full-stack Developer

Innova Solutions, Inc

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Remote

Contract

Let Volt help move you forward Volt is immediately hiring for Full-stack Developer in Remote As a Full-stack Developer, you will: Key responsibilities: Hands on Experience in C# .NET Core and CosmosDB.Hands on Experience in .NET, .NET Core Web Application Development, Web APIsGood to have experience in React, AngularJS, NodeJSIn-depth knowledge of Web Application Life CycleGood understanding of REST APIs, Data Structures.Must have knowledge on CI/CDGood debugging and analytical skills.Must know
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Posted 3 days ago

Senior Python Full Stack Developer (with Data Engineering Expertise )

Bramkas Inc.

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Remote

Contract

Python : Full Stack Polyglot Engineer with Data Engineering Expertise Location: United States RemotePosition Type: Open to Contract / Contract-to-Hire (Open to Full-Time)Experience Required: 9+ YearsMust have Skill : Python , FastAPI , React ,MongoDB , Data Engineering We are looking for a skilled Python Polyglot developer who is comfortable working across the backend, frontend, and datatransformation layers. The ideal candidate is someone with strong hands-on experience in building scalable we
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Posted 15 days ago | Updated 15 days ago

Senior : Python Full stack Developer ( React JS , Mongodb )

Bramkas Inc.

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Remote

Contract

PSenior : Python Full stack Developer ( React JS , Mongodb ) Location: United States RemotePosition Type: Open to Contract / Contract-to-Hire (Open to Full-Time)Experience Required: 9+ YearsMust have Skill : Python- backend development , FastAPI , React ,MongoDB , Data EngineeringWe are looking for a skilled Senior : Python Full stack Developer ( React JS , Mongodb )who is comfortable working across the backend, frontend, and data transformation layers. The ideal candidate is someone with strong
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Posted 15 days ago | Updated 6 days ago

Entry Level Software Developer

1800 Programmers Ltd.

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Remote

Full-time

Job description At Helix Tech IT Services, we take pride in connecting talented individuals with the right opportunities in the tech world. If you're passionate about coding and eager to build a promising career in JavaScript, we re here to guide you every step of the way! Responsibilities Work alongside experienced developers to write, test, and deploy JavaScript code.Develop user-friendly web applications using modern JavaScript frameworks like React, Angular, or Vue.js.Debug and troubleshoot
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Posted 19 days ago | Updated 19 days ago

Penetration Tester with Source Code Analysis- 4 Positions

Alkaeus

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Remote

Contract, Third Party

Penetration Tester with Source Code Analysis Remote Must Have: Seeking candidates with solid expertise in Manual web application penetration testing and Manual secure code review.Expertise is performing Manual Test Case Scenarios is a must.Identification of Vulnerabilities in Source Codes manually is a must.Not Looking: We are not looking for tool dependent SAST and DAST resources.False positives review post SAST & DAST tool-based scanning will not be considered.Key Areas: Perform manual securit
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Posted 18 days ago | Updated 4 days ago

FullStackEngineer(AWS and Python)

Precision Technologies Corp

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Remote

Full-time, Third Party

Here is the job opportunity information; Role: Full Stack Engineer(AWS and Python) Location: Remote Duration: Long Term Contract / Permanent Experience: 13+ Years MUST Mandatory Skills : React, node.js, AWS Lambda, API Gateway, Cloud watch, Python, Dynamo, must have hands on coding, Ci/cd, Terraform. We are looking for a talented and driven Full Stack Engineer with top proficiency in React, Node.js, and serverless technologies (specifically AWS Lambda) to join our dynamic engineering team. Profi
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Posted 16 days ago | Updated 15 days ago

Angular UI Architect

Bramkas Inc.

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Remote

Contract

Angular UI Architect Location: United States RemotePosition Type: Contract / Contract-to-Hire (CTH)Experience Level: 12+ yearsMust have Skill : Architect , Angular UI ExperienceJob Summary We are seeking a hands-on Angular Architect / Senior Lead with strong technical depth and client-facing experience. The ideal candidate will be skilled in building scalable, high-performance web applications using Angular (v10+) and related technologies. This role involves leading from the frontworking on cri
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Posted 60+ days ago | Updated 6 days ago

Java Full Stack Developer (Spring Boot + React + Python)

Value Spectrum Technologies LLC

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Remote

Contract

Job Overview:UnitedHealth Group is looking for a highly skilled and versatile Full Stack Java Developer to build scalable, secure, and high-performing web applications in the healthcare domain. You will be responsible for designing and developing backend microservices using Spring Boot, dynamic and responsive UIs using React.js, and supporting automation/data transformation workflows with Python. This is a critical position contributing to enterprise applications that support healthcare operatio
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Posted 2 days ago

Java Developer with Production Support

Alpha Silicon

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US

Full-time

Primary Skills/expertise: Java 1.8, Spring Boot, Microservices, , Experience on cloud, log aggregator tool (Splunk/ELK Stack), Newrelic, python, Unix commands Preferred skills/expertise: Oracle, MySQL, SQL server, HTML, JavaScript, bootstrap Job Description: Proficient in developing and supporting enterprise-level web applications using J2EE technologies. Troubleshooting production issues raised by end users to restore normal functioning. Provide assistance in fixing the user issues. Validate
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Posted 29 days ago | Updated 14 hours ago

Penetration Tester

Xoriant Corporation

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Remote

Contract

Job Title: Penetration Tester Location: Remote The Penetration Tester will own all security testing-related activities and responsibilities across the entire E&T solution portfolio with additional focus on the Grants Management practice. This position will contribute to overall organization objectives of delivering timely, bug-free, and secure releases for our solutions by enabling a shift-left mindset when it comes to application and network security. Perform manual application penetration te
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Posted 24 days ago | Updated 10 days ago

AI Engineer

Rishabh Software Pvt. Ltd

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Remote or New York, New York, USA

Contract

Job Title: AI Engineer/Software Engineer Location: New York, NY Work Mode: Remote Duration: 12 Months Responsibilities Developing the agentic backend on Google ADK. Building APIs for seamless communication between the web app and the backend. Analyzing & monitoring system performance. Deploying onto Google Cloud Platform & CloudRun Agents & tasks have been defined Tools have already been build Required skills Strong Python skills. Proven experience in building AI-driven web applications. Experie
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Posted 59 days ago | Updated 10 hours ago