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Top Senior Full-Stack Engineer Jobs in Denver & Boulder, CO

Reposted 8 Days Ago
Remote
Colorado, CO
150K-215K
Senior level
150K-215K
Senior level
Artificial Intelligence • Machine Learning • Software • Defense
The Senior Full Stack Engineer will design, build, and manage authentication systems, ensuring secure access and a great user experience. This role requires collaboration with security and mission teams, shaping the direction of the API and user management workflows while mentoring junior engineers.
9 Days Ago
Remote
Hybrid
Colorado, CO
Senior level
Senior level
Cloud • Insurance • Payments • Software • App development • Big Data Analytics
As a Senior Full Stack Developer, you will work in an Agile Scrum team to develop and enhance the Applied Epic software leveraging C#, .NET, React, and SQL Server, while also mentoring junior developers.
Top Skills: .Net 5/6AgileAngularC#CypressGitlabGoKubernetesReactSQL ServerTypescriptVisual Studio
Yesterday
Remote
Colorado, CO
150K-215K
Senior level
150K-215K
Senior level
Artificial Intelligence • Machine Learning • Software • Defense
The Senior Full Stack Engineer will lead software development to create user-facing products, mentor junior developers, and make technical decisions for mission-critical applications.
Top Skills: JavaScriptPostgresReactRedisS3
9 Days Ago
Easy Apply
Remote
Colorado, CO
Easy Apply
160K-190K
Expert/Leader
160K-190K
Expert/Leader
Artificial Intelligence • Cloud • Software • Infrastructure as a Service (IaaS)
Seeking a Senior Full-Stack Engineer with 10+ years experience to optimize AI PaaS platforms, specializing in frontend and cloud systems, database design, and scalable infrastructures.
Top Skills: AWSAzureDatadogDockerDynamoDBGCPGoGraphQLGrpcJavaScriptKafkaKubernetesMemcachedMongoDBMySQLNatsNext.JsOpentelemetryPostgresPrometheusPythonRabbitMQReactRedisTypescriptWebsockets
Reposted 4 Days Ago
Remote
Colorado, CO
170K-200K Annually
Senior level
170K-200K Annually
Senior level
Insurance • Legal Tech • Social Impact
Join Atticus as a Senior Fullstack Engineer to design, build, and improve web applications, focusing on performance and reliability while collaborating with product teams.
Top Skills: Cloud ComputingCSSGoGraphQLHTMLHttp RestJavaJavaScriptPythonReactRubyScala
6 Days Ago
Remote
Colorado, CO
Senior level
Senior level
Energy
As a Senior Fullstack Engineer, you'll build and establish the foundational infrastructure of our platform, working on both frontend and backend development.
Top Skills: Backend TechnologiesFrontend TechnologiesProject Management Tools
7 Days Ago
Remote
Colorado, CO
100K-140K Annually
Mid level
100K-140K Annually
Mid level
Automotive • Big Data • Insurance • Software • Transportation
Designs and maintains enterprise application systems, aligns application design with strategic direction, creates architectural designs, and supports business systems applications.
Top Skills: Apache AirflowAsync PythonAWSCloudDatadogDockerGitGithub ActionsGraphQLHTMLMongoDBNoSQLOpensearchPostgres SqlPythonReactRestapisSQL
Reposted 8 Days Ago
Remote
Colorado, CO
150K-210K
Senior level
150K-210K
Senior level
Artificial Intelligence • Machine Learning • Software • Defense
The Senior Full Stack Engineer will develop geospatial applications, implement algorithms, and mentor peers while collaborating in a cross-functional team.
Top Skills: ElasticsearchJavaScriptPostgresReactRedisS3

Featured Jobs

10 Days Ago
Remote
Colorado, CO
Senior level
Senior level
Fintech • Software • Financial Services
As a Senior Full Stack Engineer, you'll design and develop a financial platform's frontend and backend, integrating with various data providers while ensuring a great user experience.
Top Skills: AWSElixirPhoenixReactTailwindcssTerraformTypescript
Reposted 3 Hours Ago
Remote
Colorado, CO
6K-6K
Senior level
6K-6K
Senior level
Computer Vision • Healthtech • Information Technology • Logistics • Machine Learning • Software • Manufacturing
As a Senior Full-Stack Software Engineer at Dandy, you will develop and maintain web applications for a suite of 3D design tools, support internal APIs, and collaborate with teams to streamline supply chain processes. You will also advocate for code quality and efficiency improvements while resolving technical challenges.
Top Skills: C++GCPGraphQLNestjsNode.jsPostgresReact/ReduxThree.JsTypescript
13 Days Ago
Remote
Colorado, CO
Senior level
Senior level
Agency • Digital Media • Mobile • Design
The Sr. Full Stack Engineer will lead the development of WordPress-based applications, focusing on UX/UI, API integrations, and performance optimization.
Top Skills: CSSGitHTMLJavaScriptReactRestful ApisWoocommerceWordpress
Reposted 7 Days Ago
Easy Apply
Remote
Hybrid
Colorado, CO
Easy Apply
131K-185K Annually
Senior level
131K-185K Annually
Senior level
Hardware • Information Technology • Security • Software • Cybersecurity • Conversational AI
As a Senior Full-Stack Software Engineer, you'll build features for the Cisco Meraki Dashboard, ensuring reliability and performance while collaborating with a diverse engineering team.
Top Skills: JavaScriptPythonReactReduxRuby-On-RailsTypescript
16 Days Ago
Remote
Colorado, CO
160K-200K
Mid level
160K-200K
Mid level
Healthtech
As a Senior Full Stack Engineer, you'll build and implement scalable product features across the stack, collaborating with various teams to address client needs.
Top Skills: DjangoMySQLPythonReactTypescript
2 Hours Ago
Remote
Colorado, CO
Senior level
Senior level
Food
The Sr. Full-Stack Engineer will develop and maintain complex web and mobile applications, provide architectural guidance, and deliver scalable solutions while collaborating closely with other engineers.
Top Skills: Apollo GraphqlAWSAzureCSSGCPGitHTMLJavaScriptMongoDBMySQLNext.JsNode.jsPHPReactRubyTypescript
Reposted Yesterday
Remote
Colorado, CO
Senior level
Senior level
HR Tech • Software
The Senior Full Stack Developer will lead development projects using PHP and Symfony, mentor a team, and create dynamic applications with Vue.js and SSR.
Top Skills: CSS3DoctrineGitHTML5JavaScriptMySQLPHPSsrSymfonyVue
Reposted 7 Days Ago
Remote
Colorado, CO
186K-219K Annually
Senior level
186K-219K Annually
Senior level
Cloud • Fintech • Cryptocurrency • NFT • Web3
As a Senior Full-Stack Engineer, you will develop onchain products, optimize smart contracts, and build backend systems for institutional financial solutions.
Top Skills: APIsAWSJavaScriptNext.JsReactSolidityTypescript
2 Days Ago
Easy Apply
Remote
Colorado, CO
Easy Apply
165K-190K
Senior level
165K-190K
Senior level
Security • Software • Cybersecurity • Data Privacy
Design and maintain cloud-based applications, lead projects, mentor engineers, optimize performance, and ensure secure software development practices.
Top Skills: AWSAzureGCPGitGoJavaJenkinsKubernetesMicroservicesRestful Apis
Reposted 25 Days Ago
Remote
Colorado, CO
135K-205K
Mid level
135K-205K
Mid level
Artificial Intelligence • Machine Learning • Software • Defense
The Senior Full Stack Engineer will build and deliver a platform for managing physical sensors, ensuring end-to-end feature ownership, collaborating with cross-functional teams, and traveling occasionally to meet stakeholders.
Top Skills: JavaScriptNon-Relational Database SystemsReactRelational Database Systems
13 Days Ago
Easy Apply
Remote
Colorado, CO
Easy Apply
95K-128K Annually
Senior level
95K-128K Annually
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
The Senior Software Engineer will design and develop scalable solutions using Zendesk and other platforms, collaborating with teams to enhance customer support functionalities.
Top Skills: AIApolloAWSAzureDynamoDBGoGCPGraphQLJavaKotlinMongoDBNoSQLPythonRackspaceReactRestSQLSwiftWorkatoZapierZendesk
4 Days Ago
Remote
Colorado, CO
135K-175K Annually
Senior level
135K-175K Annually
Senior level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Software
The Senior Software Engineer will design and implement scalable healthcare solutions, lead product vision conversion to software, and improve engineering standards, leveraging advanced web technologies.
Top Skills: AngularAutomated TestingCi/CdDockerJavaJava/SpringJavaScriptKafkaKubernetesMicroservicesNode.jsPostgresPythonReactSQLTypescriptVuejs
Reposted 4 Days Ago
Hybrid
Colorado, CO
150K-160K Annually
Senior level
150K-160K Annually
Senior level
Hardware • Other • Defense • Manufacturing
As a Senior Software Engineer, you will develop safety-critical software, uphold engineering standards, and engage collaboratively in a dynamic R&D environment.
Top Skills: C/C++JavaKotlinTypescript
Yesterday
Remote
Colorado, CO
Senior level
Senior level
Blockchain • Software • Financial Services • Cryptocurrency
Seeking a senior fullstack engineer to contribute to Fern API and Fern for Business by designing and building features across the technology stack.
Top Skills: APIsBackend ServicesFintechUser Interface DevelopmentWeb3
Reposted Yesterday
Remote
Colorado, CO
Senior level
Senior level
AdTech
Develop scalable software solutions, mentor engineers, and optimize UIs using various frameworks, while collaborating with teams to drive impactful results.
Top Skills: Ai Productivity ToolsCi/CdCSSDockerGitHTMLJavaScriptKubernetesNode.jsPostgresReactTypescript
6 Days Ago
Easy Apply
Remote
Colorado, CO
Easy Apply
232K-310K
Senior level
232K-310K
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
The Senior Staff Software Engineer will lead technical strategy for consumer app experiences, ensure high-performing solutions, and guide engineering excellence across teams.
Top Skills: JavaScriptKotlinReact Native
Reposted 11 Days Ago
Remote
Colorado, CO
160K-184K
Senior level
160K-184K
Senior level
Marketing Tech • Mobile • Software
Senior Fullstack Engineers will develop scalable services and interfaces, mentor peers, and enhance product features, impacting user experience.
Top Skills: AWSAzureCSSDockerEmberGCPGoHTMLJavaScriptKubernetesMySQLPostgresReactTypescript
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