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Top Senior Level Front-End Developer Jobs in Denver & Boulder, CO

195+ Job Results
3 Hours Ago
Colorado, CO
Remote
Hybrid
330 Employees
180K-210K Annually
7+ Years of Experience
330 Employees
180K-210K Annually
7+ Years of Experience
Healthtech • Software
Principal Full-Stack Engineer role at SimplePractice, responsible for building out the next generation practice management platform, collaborating with product team, writing clean code, diagnosing and architecting solutions, and mentoring engineers.
Top Benefits:
401-K
401-K Matching
Company Outings
+22 More
6 Hours Ago
Colorado, CO
Remote
330 Employees
150K-180K Annually
7+ Years of Experience
330 Employees
150K-180K Annually
7+ Years of Experience
Healthtech • Software
Seeking a Senior Full-Stack Engineer with expert knowledge in Ruby on Rails and heavy Backend experience to help roll-out features and service improvements. Responsibilities include building the next generation practice management platform and collaborating with the Product team. Desired skills include experience with Ember.js, React.js, and creating scalable web applications.
Top Benefits:
401-K
401-K Matching
Company Outings
+22 More
6 Hours Ago
Colorado, CO
Remote
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
The Android Software Engineer at Square will be responsible for designing, building, and improving experiences in authentication, onboarding, account security, and support within the Android mobile applications. They will work on flagship products such as Point of Sale, Square Register, Square Terminal, and more. The role involves integrating customer feedback, ensuring reliability and monitoring best practices, and driving continuous improvement and growth within the team.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
6 Hours Ago
Colorado, CO
Remote
Hybrid
2,344 Employees
193K-272K Annually
7+ Years of Experience
2,344 Employees
193K-272K Annually
7+ Years of Experience
Fintech • HR Tech
Seeking seasoned engineers to work on core platform capabilities, improve existing systems, and build the future of Gusto's Payroll system. Responsibilities include designing, building, and testing foundational software, scaling large applications, collaborating on complex problems, mentoring engineers, and driving product development processes.
Top Benefits:
401-K
Adoption Assistance
Commuter Benefits
+29 More
6 Hours Ago
Colorado, CO
Remote
2,344 Employees
193K-272K Annually
7+ Years of Experience
2,344 Employees
193K-272K Annually
7+ Years of Experience
Fintech • HR Tech
Hiring seasoned engineers to work on core platform capabilities, improving existing systems for extensibility and scalability, and building the future of Gusto's Payroll system.
Top Benefits:
401-K
Adoption Assistance
Commuter Benefits
+29 More

Featured Jobs

6 Hours Ago
Colorado, CO
Remote
Hybrid
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
The Senior Workday Integration Engineer at Block is responsible for leading the development, testing, and delivery of new Workday integrations, shaping integration architectural strategy, and collaborating with stakeholders to create an ecosystem of integrated products.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
6 Hours Ago
Colorado, CO
Remote
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
The Android Software Engineer at Square's Trust Mobile team is responsible for designing, building, and improving experiences in authentication, onboarding, account security, and support in Android mobile applications. The role involves collaborating with product management and design, implementing best practices for reliability and monitoring, and continuous improvement.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
6 Hours Ago
Colorado, CO
2,000 Employees
139K-208K Annually
7+ Years of Experience
2,000 Employees
139K-208K Annually
7+ Years of Experience
Aerospace • Hardware • Information Technology • Robotics
Join us as a Sr Software Test Engineer at Sierra Space in Louisville, CO. You will design and develop cutting-edge software products, create automated test scripts, lead test campaigns, and work in a multidisciplinary team environment. Must have a Bachelor's degree in Computer Science and 10+ years of experience.
Top Benefits:
401-K
401-K Matching
Company-Sponsored Family Events
+28 More
6 Hours Ago
Colorado, CO
Remote
3,300 Employees
5-7 Years of Experience
3,300 Employees
5-7 Years of Experience
Information Technology • Security • Cybersecurity
This position involves working on the Adobe Experience Platform (AEP) and related Adobe tools within a global engineering team to support personalized marketing strategies and customer journey analytics. Responsibilities include designing robust architectures for AEP, implementing Adobe solutions, collaborating with cross-functional teams, providing technical leadership, ensuring data privacy compliance, and troubleshooting technical issues.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
6 Hours Ago
Colorado, CO
Remote
3,300 Employees
7+ Years of Experience
3,300 Employees
7+ Years of Experience
Information Technology • Security • Cybersecurity
Join Cloudflare's Durable Objects (DO) team as a Senior Software Engineer to expand capabilities, ensure reliability, maintain performance, and implement new features. Collaborate with top-notch engineers to empower Cloudflare customers with solutions across the software stack. Engage with various languages and technologies such as JavaScript, Typescript, Rust, and C++.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
6 Hours Ago
Colorado, CO
Remote
3,300 Employees
5-7 Years of Experience
3,300 Employees
5-7 Years of Experience
Information Technology • Security • Cybersecurity
Cloudflare is seeking a Senior Software Engineer to work on the development of D1, Cloudflare's first serverless database. The role involves building and defining the future of D1 to enable developers to build full-stack applications. Responsibilities include building full-stack web applications, knowledge of various programming languages, experience operating SaaS applications, designing and building APIs, and a strong understanding of computer science fundamentals.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
6 Hours Ago
Colorado, CO
Remote
250 Employees
150K-180K Annually
7+ Years of Experience
250 Employees
150K-180K Annually
7+ Years of Experience
Information Technology • Security • Cybersecurity
The Senior Software Engineer will work on designing, developing, and releasing software features for the Huntress Security Platform. Responsibilities include technical development, code quality assurance, and mentoring junior engineers. The ideal candidate should have 7+ years of experience in software development, with a focus on Ruby on Rails. Experience with Agile, Scrum, JavaScript, CSS, and AWS is also required. This is a fully remote position with competitive compensation and benefits.
Top Benefits:
401-K Matching
Company Equity
Continuing Education Stipend
+30 More
6 Hours Ago
Colorado, CO
Remote
20,000 Employees
5-7 Years of Experience
20,000 Employees
5-7 Years of Experience
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
As a Data Center Engineer at ServiceNow, you will be responsible for global infrastructure design, standards, and architecture, focusing on liquid cooling and GPU/accelerators. You will help develop best practices, standards, and evangelize data center services.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+42 More
6 Hours Ago
Colorado, CO
Remote
20,000 Employees
163K-285K Annually
7+ Years of Experience
20,000 Employees
163K-285K Annually
7+ Years of Experience
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Manage product development activities, work with cross-functional teams to create high-quality solutions, manage daily development team activities, solve ambiguous problems, and enhance engineering team.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+42 More
6 Hours Ago
Colorado, CO
Remote
20,000 Employees
163K-285K Annually
7+ Years of Experience
20,000 Employees
163K-285K Annually
7+ Years of Experience
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Senior Staff Software Engineer at ServiceNow responsible for building high-quality, scalable code, implementing software for customization, contributing to new product design and enhancements, and mentoring colleagues.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+42 More
6 Hours Ago
Colorado, CO
Remote
858 Employees
141K-175K Annually
5-7 Years of Experience
858 Employees
141K-175K Annually
5-7 Years of Experience
Consumer Web • Food • Software
Responsible for working on the delivery management system and driving ezCater's business forward. Build products utilizing Ruby on Rails, React, and GraphQL. Solve technical problems, provide technical direction, and improve user experience.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+40 More
7 Hours Ago
Colorado, CO
Remote
1,200 Employees
127K-146K Annually
7+ Years of Experience
1,200 Employees
127K-146K Annually
7+ Years of Experience
Cloud • Healthtech • Payments • Professional Services • Software • Analytics • Automation
Seeking a Sr. Software Engineer to lead development efforts for software solutions using .NET, MSSQL Server, Angular, and REST API. Responsibilities include design, implementation, and support of next-gen solutions, coordination of code reviews, automated testing, and collaborating with offshore teams. Required experience includes 8 years of designing and implementing technological solutions using .NET.
Top Benefits:
401-K
401-K Matching
Child Care Benefits
+52 More
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