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

2 Days AgoSaved
Hybrid
Colorado, CO
125K-143K Annually
Mid level
125K-143K Annually
Mid level
Fintech • Real Estate • PropTech
Build and grow Homebot applications, services, and APIs end-to-end. Use AI tooling to rapidly deliver features, create AI-driven workflows, and ship maintainable, well-tested, scalable code. Collaborate with product, design, and engineering, and instrument systems with monitoring, logging, tracing, and analytics.
Top Skills: AIAirflowAmplitudeDbtGraphQLPostgresReactRestRuby On RailsSnowflakeSQLTypescript
Reposted 5 Days AgoSaved
Easy Apply
Remote
Colorado, CO
Easy Apply
175K-240K Annually
Senior level
175K-240K Annually
Senior level
Machine Learning • Security • Software • Analytics • Defense
Lead design, build, and deploy full-stack software for DoD/IC missions. Rapidly prototype MVPs, integrate systems and APIs, deliver high-performance frontends, collaborate with users, and deploy/test in secure operational environments.
Top Skills: APIsDevOpsPythonReactTypescript
Reposted 7 Days AgoSaved
Easy Apply
Hybrid
Colorado, CO
Easy Apply
136K-204K Annually
Junior
136K-204K Annually
Junior
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
Reposted 19 Days AgoSaved
Remote
Colorado, CO
136K-200K Annually
Mid level
136K-200K Annually
Mid level
Insurance • Legal Tech • Social Impact
As a Fullstack Engineer, you'll design, build, and operate web applications, collaborating with product teams and mentoring peers while ensuring best practices in coding and system architecture.
Top Skills: AWSCircleCICloud ComputingCSSDockerGCPGoGraphQLHadoopHTMLJavaJavaScriptKubernetesMapreducePythonReactRestRubyScalaSQLWebpack
16 Hours AgoSaved
Remote or Hybrid
Colorado, CO
141K-229K Annually
Senior level
141K-229K Annually
Senior level
Consumer Web • eCommerce • Machine Learning • Software • Sports • Analytics
Lead design and implementation of the PSA Liquidity Platform connecting buyers and sellers. Build buyer tooling, matching/ranking engines, and seller experiences. Architect and operate microservices and Kafka-driven systems on Kubernetes/AWS, instrument observability, apply AI tooling across the SDLC, and drive cross-functional delivery from 0-to-1 while owning end-to-end outcomes.
Top Skills: AWSDatadogJavaKafkaKubernetesNew RelicOpentelemetryReactSpring BootSvelte
Reposted YesterdaySaved
Remote
Colorado, CO
110K-130K Annually
Senior level
110K-130K Annually
Senior level
Big Data • Cannabis • eCommerce • Logistics • Database • Business Intelligence • Big Data Analytics
The Senior Full-Stack Engineer will manage client relationships, design integration solutions, and ensure seamless delivery and optimization of technical workflows, while leveraging AI for efficiency.
Top Skills: EdiEltETLLaravelMySQLPHPPostgresPythonReactRest ApisTypescriptVueWebhooks
2 Days AgoSaved
In-Office
Colorado, CO
82K-132K Annually
Mid level
82K-132K Annually
Mid level
Aerospace • Artificial Intelligence • Computer Vision • Software • Analytics • Defense • Big Data Analytics
Design, develop, and maintain front-end and back-end components of containerized microservices for defense/intelligence applications. Collaborate on APIs or message-bus architectures, use CI/CD and Agile practices, and operate in a distributed team environment while meeting security requirements.
Top Skills: AgileAPIsBashC++Ci/CdContainerized MicroservicesElkGitGrafanaIdeJavaKafkaLinuxMessage BusPrometheusPythonReactSubversionVue
Reposted 2 Days AgoSaved
Remote
Colorado, CO
159K-254K Annually
Senior level
159K-254K Annually
Senior level
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Design, scope, and implement scalable full‑stack ecommerce solutions. Improve platform performance and usability, collaborate with Product and Design, run experiments, ship features, and ensure seamless integration across the product ecosystem.
Top Skills: AngularAWSBootstrapDockerFigmaGitJavaKotlinNode.jsReactTailwind
Reposted 2 Days AgoSaved
Remote
Colorado, CO
136K-204K Annually
Senior level
136K-204K Annually
Senior level
Artificial Intelligence • Cloud • Consumer Web • eCommerce • Information Technology • Software
The Senior Software Engineer will design, develop, and optimize scalable PHP APIs and web applications, collaborating with product and design teams to support product development and implement best coding practices.
Top Skills: GitHTMLJavaScriptMySQLPHPScssTypescript
Reposted 3 Days AgoSaved
Remote
Colorado, CO
Senior level
Senior level
Gaming • Software
As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.
Top Skills: AWSMySQLNext.JsNode.jsReactTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
Senior level
Senior level
Agency • Information Technology
Design, develop, and maintain high-performance web applications and WebAPIs using .NET 6 and React. Build scalable, reliable services, optimize performance, troubleshoot defects, and collaborate with product and development teams. Use Azure platform services, NoSQL/SQL databases, CI/CD pipelines, and propose continuous improvements.
Top Skills: .Net 6Azure App ServicesAzure Devops (Ado) PipelinesAzure FunctionsC#Cosmos DbPostgresReactVector DbWebapi
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
36K-126K Annually
Mid level
36K-126K Annually
Mid level
Agency • Information Technology
Design and build backend microservices with Java and Spring Boot, create and maintain RESTful APIs, and develop Angular frontend components. Work across the full stack, integrate asynchronous patterns (Kafka) and AWS S3, collaborate with cross-functional teams, and troubleshoot/debug applications throughout the software lifecycle.
Top Skills: AngularAws S3JavaKafkaMicroservicesRestful ApisSpring BootTypescript
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6 Hours AgoSaved
In-Office or Remote
Colorado, CO
40K-142K Annually
Mid level
40K-142K Annually
Mid level
Agency • Information Technology
Design, develop, and maintain backend microservices in Java/Spring Boot; create RESTful APIs; build Angular frontend components; integrate asynchronous communication (Kafka) and AWS S3 storage; collaborate across the SDLC and troubleshoot full-stack issues.
Top Skills: AngularAws S3JavaJSONKafkaMicroservicesRestful ApisSpring BootTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
39K-137K Annually
Senior level
39K-137K Annually
Senior level
Agency • Information Technology
Design, build, and secure scalable full‑stack applications integrating enterprise contact‑center platforms (IVR, call routing, real‑time logging) and Salesforce. Collaborate in Agile teams, implement RESTful APIs, cloud‑native and containerized architectures, apply DevSecOps and TDD practices, and ensure secure, testable, high‑quality software.
Top Skills: Angular 11+AWSContainerizationCSSDatadogDevsecopsDockerGenesysGitGitHTMLIvrJasmineJava 11+JavaScriptJenkinsJunitKubernetesMend.IoMicro Front-EndMicroservicesMochaMockitoRestful ApisSalesforceServerlessSonarqubeSpring BootTddTelephony/Contact Center PlatformsTypescriptWeb Components
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
40K-142K Annually
Mid level
40K-142K Annually
Mid level
Agency • Information Technology
Develop and maintain web applications using Java/Spring Boot backend and Angular frontend. Build microservices and RESTful APIs, integrate frontend with backend, work with Kafka and AWS S3 as needed, and collaborate across the SDLC to troubleshoot and deliver user-focused solutions.
Top Skills: AngularAws S3JavaJSONKafkaMicroservicesRestful ApisSpring BootTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
37K-132K Annually
Senior level
37K-132K Annually
Senior level
Agency • Information Technology
Design, develop, and maintain backend microservices in Java/Spring Boot; build RESTful APIs; implement Angular front-end; integrate with Kafka and AWS S3; collaborate across the SDLC; troubleshoot and debug full-stack issues. Fraud prevention experience required.
Top Skills: AngularAws S3JavaKafkaMicroservicesRest ApisSpring BootTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
36K-126K Annually
Senior level
36K-126K Annually
Senior level
Agency • Information Technology
Lead consolidation and modernization of two legacy giving marketplace applications into a single scalable stack. Design and build backend services with Java, Spring Boot, and Hibernate JPA; develop responsive Angular front-end using NgRx and SCSS. Refactor legacy code, improve performance and scalability, implement features, ensure UI/UX feasibility, and perform code reviews.
Top Skills: AngularHibernate JpaJavaNgrxScssSpring Boot
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
40K-142K Annually
Senior level
40K-142K Annually
Senior level
Agency • Information Technology
Design, develop, and maintain full-stack web applications using Java/Spring Boot backends and Angular frontends. Build RESTful APIs and microservices, implement fault tolerance (Hystrix/circuit breakers), event-driven solutions with Kafka, and observability (SLI/SLO). Deploy and manage services on Kubernetes and AWS, collaborate with cross-functional teams, mentor junior developers, and ensure system reliability and performance.
Top Skills: AngularAWSHystrixJavaJava 22KafkaKubernetesMicroservicesObservabilityRestful ApisSli/Slo MetricsSpring BootThreading And Concurrency
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
40K-142K Annually
Mid level
40K-142K Annually
Mid level
Agency • Information Technology
Develop and maintain web applications across the full stack using Java/Spring Boot backend and Angular frontend. Build microservices, design RESTful APIs, integrate frontend components, work with Kafka and AWS S3 as needed, and collaborate with cross-functional teams to troubleshoot and deliver solutions throughout the SDLC.
Top Skills: AngularAws S3JavaKafkaMicroservicesRestful ApisSpring BootTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
50K-175K Annually
Expert/Leader
50K-175K Annually
Expert/Leader
Agency • Information Technology
Design, build, and modernize cloud-native applications on Azure (AKS, App Services, Functions). Maintain and enhance legacy React/.NET applications, develop REST APIs, monitor performance, and migrate .NET apps to microservices. Act as subject-matter expert in asset management, communicate with stakeholders, and support full-stack development across frontend and backend technologies.
Top Skills: .Net CoreAksAsp.NetAsp.Net WebformsAsset ManagementAzure Active DirectoryAzure App ServicesAzure Devops (Ado)Azure FunctionsAzure Kubernetes ServicesAzure Logic AppsAzure MonitoringAzure StorageBootstrapC#CSSEntity FrameworkJavaScriptJqueryJwtLinqMicrosoft Azure Cloud PlatformMvcOauth2.0ReactRest ApiSQLSql FunctionsSql TriggersStored ProceduresWeb ApiWeb Services
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
50K-175K Annually
Mid level
50K-175K Annually
Mid level
Agency • Information Technology
Full Stack/Frontend Developer to build responsive, accessible, performant UIs using React or Vue, integrate with Java/Spring backends, implement component-based architectures, consume REST APIs, write frontend tests, use modern tooling (Webpack/Vite/Babel/ESLint), and work in Agile teams.
Top Skills: BabelCi/CdContext ApiCss ModulesEslintJavaJavascript (Es6+)JestNpmPHPPiniaPrettierReactReact Testing LibraryReduxRestful ApisSass/ScssSpring BootStyled ComponentsTailwindTypescriptViteVue Test UtilsVueVuexWebpackYarnZustand
6 Hours AgoSaved
Remote
Colorado, CO
40K-142K Annually
Senior level
40K-142K Annually
Senior level
Agency • Information Technology
Build and maintain polyglot full-stack applications, architect scalable microservices, implement agentic AI/LLM workflows, develop modern frontends, manage AWS cloud infrastructure, and own the full software lifecycle including deployment and production monitoring.
Top Skills: AngularApi GatewayAWSDbeaverDjangoDockerDynamoDBEc2Event-Driven DesignExpressFastapiGitGithub ActionsGrpcJavaJenkinsKubernetesLambdaMessage QueuesMicroservicesMongoDBNext.JsNode.jsPostgresPythonRdsReactRestS3SagemakerSpring BootSql ProfilerTableauTailwind CssTerraformTypescript
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
39K-137K Annually
Senior level
39K-137K Annually
Senior level
Agency • Information Technology
Design, develop, and maintain scalable Java/Spring Boot backend and Angular frontend applications. Build microservices, RESTful APIs, event-driven solutions with Kafka, implement fault tolerance (Hystrix/circuit breakers), observability (SLI/SLO), and deploy on Kubernetes/AWS. Collaborate with cross-functional teams, mentor junior developers, and ensure reliability and performance.
Top Skills: AngularAWSEvent-Driven ArchitectureHystrixJavaJava 22KafkaKubernetesMicroservicesRestful ApisSli/Slo MetricsSpring Boot
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
Entry level
Entry level
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
6 Hours AgoSaved
In-Office or Remote
Colorado, CO
Mid level
Mid level
Artificial Intelligence • Marketing Tech • Sales • Software
Build and maintain end-to-end features across backend (Node.js/TypeScript, Python) and frontend (React/TypeScript). Model Postgres schemas, integrate queues (QStash/Upstash), deploy on Cloudflare edge, write tests, enforce CI/CD, and harden systems for security and performance in regulated environments.
Top Skills: Aws LambdaCloudflare PagesCloudflare WorkersDjangoDurable ObjectsFastapiFlaskGraphQLKafkaNode.jsPostgresPythonQstashR2RabbitMQReactRestTypescriptUpstashVercel
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