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Top Full-Stack Engineer Jobs in Denver & Boulder, CO
Information Technology • Productivity • Software • Infrastructure as a Service (IaaS)
Build backend-focused Java/Kotlin APIs and data-driven product features, while contributing to React dashboards and workflows. Design scalable systems, participate in architecture and code reviews, troubleshoot production issues using observability tools, and collaborate with data, reporting, design, and product teams to launch emerging products.
Top Skills:
Ai ToolingDistributed SystemsFront-End Testing FrameworksGraphQLGrpcJavaJavaScriptKotlinReactRelational DatabasesRestSQLStreaming Data
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
Machine Learning • Security • Software • Analytics • Defense
Lead software engineering teams developing, integrating, deploying, and maintaining full-stack mission applications for DoD and intelligence customers. Build prototypes and high-performance user interfaces, integrate APIs and independent capabilities, collaborate with military and government operators, and conduct deployment, field testing, and troubleshooting in secure operational environments. Manage customer relationships while ensuring software quality, reliability, and performance.
Top Skills:
PythonReactTypescript
Fintech • Information Technology • Insurance • Financial Services • Big Data Analytics
Develop and deploy customer-focused web, mobile, and backend applications across the full software stack. Design major features, contribute to architecture decisions, conduct code reviews, and ensure secure, high-quality implementations. Collaborate with stakeholders and cross-functional teams using Agile and SDLC practices. Manage version control, CI/CD, environments, and releases; maintain automated test coverage and perform root-cause analysis. Build and optimize relational data solutions using SQL Server, including complex queries, stored procedures, and performance tuning.
Top Skills:
.NetAgileC#Ci/CdGitJavaScriptJestNode.jsNunitReactSdlcSQL ServerTypescriptWeb Apis
Edtech • Fintech • Payments • Social Impact • Financial Services • Big Data Analytics
Build and maintain scalable e-commerce and marketplace features across Node.js, React, MySQL, and MongoDB. Own complex features end to end, design backend services and APIs, integrate PunchOut procurement systems, improve platform security and reliability, conduct code reviews, and mentor engineers. The role requires strong full-stack JavaScript and TypeScript expertise, e-commerce domain experience, and the ability to work autonomously on high-volume transactional software.
Top Skills:
CoupaCxml PunchoutGraphQLJaggaerJavaScriptMongoDBMySQLNest.JsNext.JsNistNode.jsOciOracle ProcurementPci-DssReactRestSap AribaSoc 2Typescript
Software
Build and own CRM features and workflow automations supporting sales, marketing, onboarding, and support. Develop full-stack functionality using Next.js, FastAPI, Inngest, and related technologies; partner with teams to automate workflows; create agentic solutions for enrichment and task automation; and manage features from planning through monitoring and refinement. The role requires strong web development expertise, product sense, autonomy, communication, and experience with modern JavaScript or TypeScript frameworks and orchestration tools.
Top Skills:
AirflowAWSClaude CodeClaude DesignCodexCursorFastapiInngestJavaScriptNext.JsNode.jsPostgresPrefectPythonReactShadcn/UiSnowflakeSupabaseTailwind CssTemporalTypescriptVercelVue
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
26 Days AgoSaved
Easy Apply
Easy Apply
Big Data • Fintech • Mobile • Payments • Financial Services
Leads technical vision and strategy for Affirm’s Marketplace, Search, Ads Platform, and consumer experiences. Designs scalable full-stack platforms, guides architecture and technical excellence, coordinates initiatives across engineering teams, mentors engineers, and drives reliable delivery of customer-focused products across iOS, Android, and Web.
Top Skills:
AndroidiOSJavaScriptKotlinReact Native
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Design, develop, test, deploy, and support scalable full-stack cloud-native applications using Java, Spring Boot, Vue.js, Python, and FastAPI. Build secure APIs and operate AWS applications with Docker, Kubernetes, and Infrastructure as Code. Collaborate with product, systems, and architecture teams to deliver features end to end. Apply AI-assisted development throughout coding, testing, debugging, code review, and documentation while validating quality, security, and maintainability.
Top Skills:
AngularAWSAws CdkCi/CdCloudFormationDevOpsDockerFastapiGCPInfrastructure As CodeJavaKubernetesPostgresPythonReactRest ApisSpring BootTerraformVue
Reposted 6 Minutes AgoSaved
Information Technology • Professional Services • Consulting
Design, build, and deploy secure, high-performance, scalable cloud-native applications supporting Ariba P2P. Work full-stack in Java using Spring Boot and the SAP BTP Cloud Foundry CAP (Java) model, applying resiliency, security, and performance best practices.
Top Skills:
Ariba P2PCap (Java)Cloud FoundryJavaSap BtpSpringSpring Boot
28 Days AgoSaved
Easy Apply
Easy Apply
Cloud • Security • Software • Cybersecurity • Automation
Leads technical direction and develops fullstack purchase experiences using Ruby on Rails and Vue.js. Designs resilient transactional flows, integrates billing and CRM systems, improves reliability and rollout safety, mentors engineers, reviews code, reduces technical debt, and participates in incident response. Partners with Product, Design, Billing, and Support to improve GitLab’s purchase, subscription, discount, and upgrade workflows.
Top Skills:
Ruby On RailsVue
Healthtech
Own end-to-end product features for a SaaS platform serving HR, therapists, and employees. Build, scale, and evolve frontend and backend components, lead architecture and standards, collaborate with design and product, and incorporate customer feedback and QA. Work in an early-stage startup environment with product-focused ownership.
Top Skills:
Next.JsPythonReact
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eCommerce • Information Technology • Consulting
Develop and maintain secure full-stack web applications for federal government clients. Build frontend interfaces and backend services, APIs, integrations, and database functionality using modern technologies. Support application modernization, testing, troubleshooting, code reviews, CI/CD, cloud environments, accessibility, and secure development practices. Collaborate within Agile teams alongside developers, quality engineers, analysts, and technical stakeholders while providing production support and participating in client-facing communication.
Top Skills:
AWSCi/CdCSSDevsecopsDjangoDockerFedrampFismaGitHTMLJavaJavaScriptKubernetesMicrosoft TeamsMonday.ComMySQLNist Sp 800-53Node.jsOpenshiftPostgresPythonReactRest ApisSafeScrumSection 508SlackSpring BootSQLTerraformTypescript
Information Technology • Professional Services • Consulting
Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.
Top Skills:
.Net 6+AngularAzure App ServicesAzure DevopsAzure FunctionsAzure Key VaultAzure Service BusAzure SqlBlazorC#Ci/CdCosmos DbDockerGraphQLGrpcJSONKubernetesOauthReactRest ApisSQL Server
Information Technology • Marketing Tech • Software • App development
Work on real-world web applications across frontend and backend. Use modern frontend frameworks (React/Angular/Vue) and backend tech (Node.js, Python, Java, PHP). Integrate RESTful APIs with databases (MongoDB, PostgreSQL, MySQL), debug, test, optimize performance, and collaborate with designers and product teams while gaining hands-on mentorship.
Top Skills:
AngularCSSGitHTMLJavaJavaScriptMongoDBMySQLNode.jsPHPPostgresPythonReactRestful ApisVue
Information Technology • Other • Software
Design, build, and own scalable multi-tenant SaaS applications across frontend, backend, and data layers. Improve system architecture, performance, reliability, and testing practices. Integrate AI-assisted tools, mentor engineers, conduct code reviews, and collaborate with Product and Design to deliver intuitive, production-grade software.
Top Skills:
ClaudeDistributed SystemsEvent StreamingGithub CopilotMicroservicesNode.jsReactRubyRuby On RailsServerlessTypescript
Hardware
Build and maintain AI-assisted full-stack platforms for manufacturing, spanning AWS infrastructure, Python Lambda services, Java microservices, agentic LLM workflows, and Angular interfaces. Develop event-driven architectures, APIs, retrieval and scoring systems, infrastructure as code, observability, CI/CD, and secure deployment strategies. Apply rigorous testing, specification-driven development, concurrency practices, and production reliability techniques across multi-repository systems. The role requires hands-on software development experience with enterprise server, storage, or networking products.
Top Skills:
Ai Coding AgentsAmazon Api GatewayAmazon BedrockAmazon CloudwatchAmazon DynamodbAmazon EcrAmazon Ecs FargateAmazon EventbridgeAmazon OpensearchAmazon S3Amazon SqsAmazon VpcAngularAWSAws IamAws LambdaAws Systems Manager Parameter StoreAzure DevopsDockerDocker SwarmEmbeddingsGitHibernateIam Roles AnywhereJavaJdbcJpaKafkaKubernetesLlmsNats.IoPydanticPythonQuarkusRagRest ApisSemantic SearchSpring BootTypescriptVector SearchVpc Endpoints
Artificial Intelligence • Automotive • Software
Build and optimize BizzyCar’s full-stack platform using Ruby on Rails APIs and Angular. Own features end to end, diagnose issues across UI, APIs, and data, guide architecture, mentor engineers, improve testing standards, and support multiple product domains including recalls, AI, and service systems.
Top Skills:
Angular 20CoderabbitCursorGithub ActionsRubyRuby On RailsSemaphore
Big Data • Hardware • Machine Learning • Software • Defense
Build and maintain full-stack components for a maritime domain awareness platform supporting sonar and sonobuoy data. Responsibilities include developing frontend pages and real-time data feeds, designing PostgreSQL and Apache Iceberg data models, modifying MQTT and Redpanda pipelines, managing Dagster batch workflows, integrating machine learning algorithms, and improving development and CI/CD tooling. The role is remote and involves mission-critical defense technology.
Top Skills:
Apache IcebergCSSDagsterDigital Signal ProcessingDockerGisGithub ActionsGraphQLIotKubernetesMqttNext.JsNode.jsPostgresPythonReactReact ContextRedpandaRest ApisSQLTailwindcssTypescriptWebgpu
Big Data • Hardware • Machine Learning • Software • Defense
Build and maintain full-stack applications for a maritime data management and AI platform. Responsibilities include developing frontend components, real-time WebGPU data feeds, PostgreSQL and Apache Iceberg data models, MQTT and Redpanda pipelines, Dagster batch workflows, machine learning integrations, and CI/CD tooling. The role supports mission-critical products used with U.S. Navy sonar and sonobuoy data.
Top Skills:
Apache IcebergCSSDagsterDockerGisGithub ActionsGraphQLKubernetesMqttNext.JsNode.jsPostgresPythonReactReact ContextRedpandaRest ApisSQLTailwindcssTypescriptWebgpu
Reposted YesterdaySaved
Greentech • Professional Services • Consulting • Hospitality
Design, build and maintain Microsoft Cloud applications using Power Apps/Pages and Azure services. Implement Entra ID authentication, Azure Functions/App Services, Logic Apps and Blob storage. Create Azure Data Factory pipelines and APIs (REST/GraphQL), integrate external services and LLM data pipelines, and ensure performance, security, and scalability while collaborating with customers to turn requirements into streamlined apps.
Top Skills:
Azure App ServicesAzure Blob StorageAzure Data FactoryAzure DevopsAzure FunctionsAzure Logic AppsGithub ActionsGraphQLJavaScriptMicrosoft Entra Id (Azure Ad)Microsoft Power AppsMicrosoft Power PagesNotification HubPower BIPythonRestSQL
Artificial Intelligence • Computer Vision • Analytics • Defense
Build and scale full-stack applications using Ruby on Rails, React, PostgreSQL, Docker, Kubernetes, and Terraform. Design APIs, data architectures, synchronization systems, infrastructure, and CI/CD pipelines for secure, reliable operation in disconnected and low-bandwidth environments. Collaborate across engineering, business development, and mission teams while supporting critical defense and public safety operations.
Top Skills:
C#C++Ci/CdClaude CodeCodexCursorDockerKotlinKubernetesLlmsPostgresPythonReactRubyRuby On RailsSQLTerraform
HR Tech • Software
Build and operate scalable, accessible, high-performance web experiences for Calendly’s marketing website and Help Center. Own projects from technical design through deployment and iteration, develop frontend architecture and CMS integrations, improve SEO, AEO, accessibility, Core Web Vitals, and reliability, and collaborate with Marketing, Content, SEO, Design, Product, and Engineering. Provide technical leadership through testing, code reviews, documentation, mentorship, and architectural improvements.
Top Skills:
AstroCSSHTMLJavaScriptPayload CmsTypescript
eCommerce • Marketing Tech • Software
Own and evolve scalable distributed systems, REST APIs, backend services, and core product areas. Design solutions, improve resilience, reduce technical debt, and drive modularization. Use AI-first and agentic development practices, evaluate emerging AI tools, and help integrate AI across engineering workflows. Collaborate asynchronously with product, data, and go-to-market teams while improving engineering tools, processes, and system reliability.
Top Skills:
AWSClaude CodeCursorDatadogDistributed SystemsGithub CopilotGoKubernetesNosql DatabasesPythonReactRelational DatabasesRest ApisSQLTypescript
Artificial Intelligence • Marketing Tech • Sales • Software
Build end-to-end user features under senior guidance: implement REST endpoints in Node.js/TypeScript, microservices in Python, maintain PostgreSQL schemas, process background jobs with QStash/Upstash, deploy to Cloudflare Workers/Pages/R2, write tests, and collaborate with product/design on React UI components.
Top Skills:
Cloudflare PagesCloudflare R2Cloudflare WorkersCSSHTMLNode.jsPostgresPythonQstashReactSQLTypescriptUpstash
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