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4,857 senior developer jobs at 1,182 companies in Boulder, CO

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Senior Application Developer
Aurora, Colorado, United States
$85k-$95k/yr HybridFull Time
University of Colorado
University of Colorado: Public research university providing higher education and healthcare services.
2+ YOESenior developer for identity and access management; design, develop, and support secure, multi‑system web apps with identity/authentication integrations.
ASP.NET, NodeJS, MVC, TypeScript, Angular, Vue, React, MySQL, Oracle, MSSQL Server, Java, Python, Ruby, C#
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Senior Software Engineer
Littleton, Colorado, United States
$120k-$150k/yr OnsiteFull Time
OASYS
OASYS: Provides technology services and products for government and defense.
Full-time Senior Software Engineer with C/C++ experience; US citizen; security clearance required.
C, C++
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3mo
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Senior Software Engineer I/II - Digital Engineering
Littleton, Colorado, United States
$125k-$160k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
5+ YOEBachelor's degree in computer science or engineering; 5+ years (Senior I) or 8+ years (Senior II) in software development, with simulation or aerospace focus; proficiency in C#/.NET and Angular; TypeScript/JavaScript; RESTful APIs; U.S. citizenship required.
C#/.NET, Angular, TypeScript/JavaScript, RESTful APIs, Git
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1mo
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Senior Software Engineer
Denver or Salem
$130k-$150k/yr OnsiteFull Time
AutoStore
AutoStoreOslo Stock Exchange: AUTO: Robotic cube storage systems for automated warehouse fulfillment.
5+ YOE5+ years in software development; Bachelor’s or Master’s in CS/Engineering; strong API, security, and data tooling experience.
Git, OpenAPI, OAuth, RabbitMQ, Apache Kafka, Azure Service Bus, Event Hubs, Azure Databricks, TypeScript, C#, F#, PostgreSQL
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Senior Software Engineer
Denver, Colorado, United States
$143k-$183k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
5+ YOE5+ years of software development; strong Node.js; AWS; Kubernetes; Datadog; microservices; relational and NoSQL databases; Bachelor's degree in CS or related field.
Node.js, Docker, Kubernetes, AWS, Datadog, Angular, React, Web Components, Kafka, SQL, NoSQL
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Senior Software Engineer
Denver, Colorado, United States
$155k-$195k/yr OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
6+ YOE5–8 years of professional software development; strong C++, performance optimization; experience with embedded systems, Qt UI, REST/JSON, Agile/CI/CD.
C++, Qt, QtWidgets, QML, REST, JSON, Git, CMake, QMake
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Senior DevTools Engineer
San Francisco or Boston or New York or Denver
$163k-$247k/yr HybridFull Time
Semgrep
Semgrep: Provides a code security platform for developers and security teams.
5+ YOE5+ years software engineering; experience in developer tooling, software/infrastructure engineering; cloud infrastructure design and deployment; Python and TypeScript proficiency; security-aware mindset.
Python, TypeScript, AWS, GCP, Cloud infrastructure, Developer tooling
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Senior Software Engineer - Order Orchestration
Denver, Colorado, United States
$96k-$138k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
5+ YOESenior software engineer with enterprise Java, AWS, microservices, API design, and CI/CD experience.
Java, Spring Boot, AWS, Docker, Kubernetes, OpenAPI, Swagger
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Senior Software Engineer
Spring or Fort Collins
$131k-$205k/yr OnsiteFull Time
HP
HPNYSE: HPQ: Produces personal computers, printers, and related digital imaging products.
4+ YOE4-7 years in software engineering; Windows-based app development; C/C++; Win32 API; multithreading; CI/CD; Git; MSTest; Agile; Azure; AI platform familiarity.
C++, Win32 API, Multithreading, Git, CI/CD, MSTest, Agile, Azure, Docker, Kubernetes, Python, JavaScript, React, SQL, API, AWS
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Senior Software Engineer
Denver, Colorado, United States
RemoteFull Time
Primeritus Financial Services
Primeritus Financial Services: Provides outsourced repossession management and remarketing for lenders.
6+ YOE6-8 years in software development; SaaS/IaaS/PaaS experience; REST, HTML, CSS, JavaScript, Angular, C#, SQL; Agile; .NET/C# certifications beneficial; strong communication.
REST, HTML, CSS, JavaScript, Angular, C#, SQL, SaaS, IaaS, PaaS, Agile
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Senior Software Engineer
Minneapolis or Denver or Charlotte
$118k-$155k/yr HybridFull Time
RVO Health
RVO Health: Provides digital health information and consumer wellness solutions.
5+ YOE5+ years in software development; strong TypeScript; experience with NodeJS, Golang, or Ruby; experience with Express or Rails; SQL/Postgres; ORMs (Prisma/Sequelize/TypeORM); CI/CD and IaC; strong problem-solving and communication.
Typescript, NodeJS, Golang, Ruby, Express, Ruby on Rails, SQL, PostgreSQL, Prisma, Sequelize, TypeORM, CI/CD, Infrastructure as Code, AI for code generation
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Senior Security Engineer
Austin or Chicago or Dallas or Denver or Los Angeles or San Diego or San Francisco
$131k-$169k/yr HybridFull Time
Karbon
Karbon: Practice management software for accounting firms.
4+ YOESenior Security Engineer with 4+ years in security or development; strong communication; cloud and AI experience; hands-on with security tooling and threat modelling.
DotnetCSharp, JavaScript, React, EmberJS, Python, Azure, AWS, GCP, PowerShell, Bash, GitHub Copilot, Burp Suite
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Senior AI Platform Engineer
Boulder or United States
$175k-$215k/yr HybridFull Time
Campminder
Campminder: Cloud-based management software for the summer camp industry.
Senior AI Platform Engineer to build AI enablement tools, collaborate with executives and product, and drive AI tooling and observability across Campminder.
RAG, prompt engineering, context engineering, LLM evals, Claude Code, Cursor, MCPs, custom agents, skills/plugins, agentic coding tools
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3mo
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Senior Software Developer
Louisville, Colorado, United States
$118k-$144k/yr OnsiteFull Time
CableLabs
CableLabs: Develops next-generation technology specifications for the global broadband industry
5+ YOE5+ years in professional software development; strong Python; SQL; REST APIs; Git; CI/CD; excellent communication; Bachelor’s degree in CS/Software Engineering.
Python, SQL, Git, GitLab CI, pytest, REST APIs, JavaScript, TypeScript, Node.js
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Senior Java Engineer - Cloud Platform
Denver, Colorado, United States
$170k-$200k/yr HybridFull Time
FusionAuth
FusionAuth: Provides authentication and user management software for developers.
10+ YOE10+ years software development; 6+ years in ops/platform; strong Java; AWS; Kubernetes; Terraform; Linux; SQL; cloud and backend architecture.
Java, AWS, Kubernetes, Terraform, Linux, SQL, Git
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1mo
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Senior C#/.Net Developer
Lone Tree, Colorado, United States
$150k-$170k/yr OnsiteFull Time
Charles Schwab
Charles SchwabNYSE: SCHW: Financial services, brokerage, and investment management provider.
7+ YOE7+ years in software development with .NET, C#, DDD, REST APIs, SQL Server, CI/CD, and leadership.
.NET, C#, ASP.NET, REST API, SQL Server, GitHub, CI/CD, IIS, Windows Services, DDD, SOLID, Unit Testing, Integration Testing
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2mo
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Senior Embedded Software Engineer
Berthoud, Colorado, United States
$125k-$155k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
4+ YOEDesign, develop, and maintain embedded software for avionics; strong C/C++ on ARM/SoC/FPGA; hardware interface, debugging tools; Git; team collaboration.
C/C++, ARM, SoC, FPGA, HDL, Git, Oscilloscope, Logic Analyzer, Python, MATLAB
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Senior Software Engineer
Denver, Colorado, United States
$100k-$144k/yr RemoteFull Time
Resource Innovations
Resource Innovations: Provides clean energy services and software solutions for utilities.
10+ YOEExpert PHP 8.x with 10+ years in PHP frameworks (e.g., Laravel); strong RESTful APIs, Vue.js (6+ years), TypeScript; SPA design; AWS/serverless; Git; Agile; testable code with Pest/PHPUnit.
PHP, Laravel, Vue.js, TypeScript, Git, AWS, New Relic, CloudWatch, Pest, PHPUnit, NPM, Vite, Tailwind CSS
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3mo
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Senior Software / Applications Developer
Denver or Lakewood
$106k-$130k/yr RemoteFull Time
Cape Fox Federal Integrators
Cape Fox Federal Integrators: Provides government agencies with professional, technical, and training services.
5+ YOESenior-level software development for federal systems; PHP, ColdFusion, Java, SQL; API integrations; Agile DevSecOps; cloud migration; DO I security.
PHP, ColdFusion, Java, SQL, MuleSoft, Oracle, RHEL, AWS GovCloud, Git
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Senior Software Engineer
Denver, Colorado, United States
$130k-$150k/yr HybridFull Time
OrthoFi
OrthoFi: Software for orthodontic practice operations and patient financing.
10+ YOE10+ years software development experience, 4+ years in senior roles. Strong .NET Core/.NET Framework, React/Angular, SQL Server, AWS, CI/CD experience; Bachelor's in STEM required; experience with AI coding tools preferred.
.NET Core, .NET Framework, React, Angular, SQL Server, AWS, CI/CD, Terraform, Datadog, GraphQL, ElasticSearch, Claude, GitHub Copilot, Cursor, Playwright, Model Context Protocols (MCP)
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