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Top Full-Stack Engineer Jobs in Denver & Boulder, CO
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.
Top Skills:
AWSBootstrapCSSDockerFigmaGitJavaJavaScriptKotlinNode.jsReactSketchTailwind
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
The Software Engineer will design, maintain, and develop web solutions, focusing on real-time data and integrating geospatial data for front-end and back-end applications. Requires ownership of the software lifecycle, using modern frameworks and tools.
Top Skills:
AngularBitbucketC++CesiumConfluenceDockerJavaJavaScriptJIRANode.jsOrm SoftwarePodmanVue
Social Media • App development
Lead the engineering effort for a seed-stage dating app: audit and improve the existing codebase, design and build v2 (mobile and backend), implement real-time features, define engineering standards, scale infrastructure on AWS, and, after fundraising, hire and mentor a small team while shaping the technical roadmap.
Top Skills:
AndroidAws Ec2Aws S3Aws SesBlocClean ArchitectureFlutteriOSMongoDBNestjsWebsockets
Fintech • Information Technology • Insurance • Financial Services • Big Data Analytics
Lead architecture, modernization, and development of Group Insurance applications. Modernize mainframe monoliths into Java microservices and micro-frontends on cloud, mentor distributed Agile teams, collaborate with enterprise architecture, product owners and infrastructure, and enable test automation and integrations. Approximately 10% domestic travel.
Top Skills:
Ai/MlAWSAzureBpmCicsCloudCobolDb2DevOpsIntegrationsJavaJavaScriptMainframeMicro-FrontendMicroservicesNode.jsNoSQLPythonRdbmsSalesforceSsoUi FrameworksVsam
Artificial Intelligence • Cloud • Consumer Web • Productivity • Software • App development • Data Privacy
The role involves leading application performance improvements across multiple platforms, focusing on measurable metrics and driving engineering standards and workflow optimization, using both hands-on coding and strategic influence.
Top Skills:
Ai ToolingGoJavaScriptLlmsPythonReactRum Telemetry
Legal Tech • Software • Generative AI
Build and own Eve's marketing site and GTM engineering stack: integrate and optimize external tools, design AI agents for sales and marketing, implement webhooks and middleware to sync product/CRM data, and create programmatic campaigns and internal tools in partnership with Marketing, Sales, RevOps, and Product to drive growth and automation.
Top Skills:
Ai AgentsCRMCSSHTMLJavaScriptLlmsMarketing AutomationMiddlewarePythonSQLWebhooks
Big Data • Fintech • Information Technology • Insurance • Software
Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.
Top Skills:
Ci/CdClaude CodeCursorGithub CopilotGoGraphQLGrpcPythonReactRestTypescript
Digital Media • Gaming • Software • Esports • Automation
Develop, maintain and evolve a high-scale US sports trading platform. Build React/TypeScript frontends, backend microservices, optimize SQL and performance, implement CI/CD and automated testing, mentor junior engineers, and collaborate with stakeholders and architecture teams to ensure resilience and integration.
Top Skills:
Ci/CdGithub ActionsJenkinsMicroservicesReactReduxSQLTypescript
Edtech • Fintech • Payments • Social Impact • Financial Services • Big Data Analytics
Modernize a large fintech platform by building NestJS services and Next.js UIs, migrate transactional data to relational schemas, write comprehensive tests, identify and fix legacy problems, design scalable solutions that coexist with legacy systems, and use AI tooling responsibly to increase engineering velocity.
Top Skills:
AWSBackboneCiClaude CodeCypressDockerExpressFastifyGithub CopilotJavaScriptJestKafkaKubernetesMarionetteMaterial-UiMongoDBMongooseMySQLNestjsNext.JsNode.jsPlaywrightPostgresRabbitMQReactReduxSQLSqsSupertestTypescript
Machine Learning • Security • Software • Analytics • Defense
Lead full-stack mission engineer who designs, develops, integrates, and deploys software for DoD/IC missions. Lead cross-functional teams to build high-performance frontends and cohesive systems, collaborate with military customers for product discovery, and deploy and field-test solutions in secure operational environments (travel ~1 week/month).
Top Skills:
APIsPythonReactTypescript
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Design, build, and maintain front-end visualizations and back-end web services for real-time geospatial data. Participate in full software lifecycle, ingest GIS/imagery data, improve tools/processes, and collaborate on modern web frameworks and performance profiling.
Top Skills:
AngularBitbucketC++CesiumConfluenceDockerJavaJavaScriptJIRANode.jsPodmanPrismaSqlalchemySshTcp/IpVue
Real Estate • Sales • Software • PropTech
As a Senior Software Engineer, you'll design, develop, and maintain full-stack applications, utilizing TypeScript and modern frameworks while collaborating cross-functionally to enhance user experience and performance.
Top Skills:
Ai Coding ToolsAngularGitGitlabGraphQLNode.jsRestTypescript
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Fintech • Software • Financial Services
Design and build a high-performance, AI-native web trading experience for sophisticated retail traders. Ship core trading workflows (order entry, positions, blotter, watchlists, alerts), implement trustworthy AI UI patterns, collaborate with backend engineers on low-latency contracts, and iterate quickly with users and stakeholders to deliver end-to-end product features.
Top Skills:
PostgresReactReact NativeRustTypescript
Healthtech
Develop and implement full stack features for a healthcare platform, focusing on both frontend (React) and backend (Node.js) development. Responsible for performance optimization, API creation, testing, and collaboration with data engineering teams.
Top Skills:
AWSCypressExpressJestMongoDBNext.JsNode.jsPostgresReactReact Testing LibraryTypescript
Aerospace • Artificial Intelligence • Hardware • Machine Learning • Software • Defense • Manufacturing
Lead and deliver software solutions, oversee full-stack architecture, mentor engineers, and drive cross-functional initiatives for spacecraft modeling and control platforms.
Top Skills:
BeamCSSElixirGitHTMLJavaScriptReactThree.JsTypescriptWebgl
Computer Vision • Fintech • Hardware • Internet of Things • Machine Learning • Software • Transportation
Build and maintain the full-stack platform connecting Blissway hardware to drivers, partners, and agencies. Own public user surfaces, partner integrations (DMVs, mailhouses, fleet vendors, ACH), platform/deployment tooling, service infrastructure, and internal access management. Ensure secure, robust, production-ready systems and tooling that support a fast-moving, small engineering team.
Top Skills:
Ach Payment ProcessingAuthentication/Identity ManagementDevOpsIotPythonSaaSTypescript
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Cannabis • eCommerce • Enterprise Web • Logistics • Payments • Software • Database
Design, build, and maintain scalable backend services and APIs for commerce workflows using Python/Django. Improve reliability, performance, and observability, operate AWS deployments, work with PostgreSQL and event-driven architectures (SNS/SQS), modernize legacy systems, and support CI/CD, testing, and production troubleshooting.
Top Skills:
Amazon SnsAmazon SqsAWSCi/CdDjangoDjango Rest FrameworkDockerEvent BusesKubernetesPostgresPython
Artificial Intelligence • Cloud • Consumer Web • Productivity • Software • App development • Data Privacy
Lead full‑stack design and delivery of customer-facing web experiences (Browse, Navigate, Preview). Own architecture, APIs, data models, rollouts, observability, on‑call readiness, and cross-team alignment, using approved AI-assisted workflows while ensuring technical quality and reliability.
Top Skills:
C++GoJavaJavaScriptPythonReactTypescript
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Artificial Intelligence • Machine Learning • Natural Language Processing • Software • Conversational AI
Build and ship full-stack features for customer-facing Console and Playground, plus internal tools. Design and maintain APIs and backend services, implement accessible performant frontends, translate product requirements into incremental work, and improve code quality through reviews and design discussions.
Top Skills:
APIsCloud InfrastructureContainerized Deployment EnvironmentsDatabasesElmGoPythonRust
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Big Data • Fintech • Mobile • Payments • Financial Services
Lead technical direction and delivery for the Acquisition & Onboarding full‑stack team. Build and maintain mobile (React Native/native) and web experiences, backend services at scale, and operational tooling. Drive architecture, mentor engineers, ensure reliability/monitoring/on‑call readiness, collaborate with product and design, and improve dev processes, testing, and release practices to impact conversion and retention.
Top Skills:
Analytics InstrumentationAWSCi/CdExperimentationFeature FlaggingJavaScriptKotlinKubernetesMySQLPythonReactReact NativeSwiftTypescriptVue
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Sales • Software • Travel
The Full Stack Engineer will develop features for a dynamic web application, collaborate with team members, enhance performance, and improve automated tests.
Top Skills:
AngularjsDjangoJavaScriptPythonRelational Databases
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Develop and deliver production-ready web experiences for marketing using React, Gatsby, and Tailwind. Build API integrations, maintain a lightweight codebase and design-system components, ensure accessibility, performance, SEO, and multi-region support, participate in code reviews, and help shape tooling and best practices across the team.
Top Skills:
Ai-Assisted WorkflowsCi/CdContentfulCSSGatsbyGitGraphQLHTMLJavaScriptNode.jsReactRest ApiServerlessTailwind Css
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Design, develop, and maintain full‑stack web applications and containerized microservices for defense and intelligence customers. Build front-end and back-end services, integrate APIs/message buses, use CI/CD, monitoring, and collaborate on distributed Agile teams to deliver mission-focused software.
Top Skills:
APIsBashC++Ci-CdContainerized MicroservicesElkGitGrafanaJavaKafkaLinuxMessage BusPrometheusPythonReactVue
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Build full-stack web applications and containerized microservices for defense and intelligence customers. Develop front-end and back-end services using APIs or message buses, employ observability tools, follow Agile and CI/CD practices, and collaborate on distributed teams. Must hold active TS/SCI clearance and work on-site.
Top Skills:
BashC++Ci/CdElkGitGrafanaJavaKafkaLinuxPrometheusPythonReactSubversionVue
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Design, develop, and maintain full-stack web and backend microservices for defense/intelligence customers. Build containerized services, front-end applications, and API/message-bus integrations using observability tools and CI/CD in an Agile, distributed team environment.
Top Skills:
AgileAPIsBashC++Ci-Cd PipelinesContainerized Micro-ServicesElkGitGrafanaIdeJavaKafkaLinuxMessage BusPrometheusPythonReactSubversionVue
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