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125 senior application developer jobs at 79 companies in Westminster, CO

2mo
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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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2mo
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Application Developer, Senior
Washington or Orlando or Fort Meade or Minneapolis or Huntsville or Dayton or San Diego or Fort Sheridan or Devens or Norfolk or Millington or Phoenix or Fort Worth or Peterson AFB or Buckley AFB or Belle Chasse or Fort Leavenworth or MacDill AFB or San Antonio or Tampa or Quantico or Lackland AFB or Yorktown or Offutt AFB or Rome or Reston or Camp Parks
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
6+ YOE6+ years in application or software development; Node.js with Typescript, SQL/PostgreSQL, Redis, Elasticsearch; cross-functional collaboration; automated testing; TS/SCI with polygraph; Bachelor’s degree.
Node.js, Typescript, SQL, PostgreSQL, Redis, Elasticsearch
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2w
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Senior Application Developer
Denver or St. Louis or Sterling or Springfield
$75k-$158k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEBachelor's or equivalent,8+ years software development experience,expertise in Java and/or Python,REST APIs,relational and non-relational databases,CI/CD and Git,TS/SCI clearance with polygraph required.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium, Kubernetes, AWS, Git, CI/CD
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3mo
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Senior Application Security Engineer
Denver or Long Beach
$145k-$205k/yr HybridFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
5+ YOE5+ years in application security; experience with NIST 800-171/800-53, FedRAMP or CMMC; code in Python/Elixir/C++/JS; cloud security (Azure/AWS/GCP); DoD clearance eligibility.
CodeQL, Semgrep, JFrog Xray, DAST tools, Terraform, Bicep, Pulumi, Kubernetes
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1mo
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Senior Application Security Engineer
Broomfield, Colorado, United States
HybridFull Time
Recurly
Recurly: Automates subscription billing and management for recurring revenue businesses.
Experience developing in multiple languages, DevSecOps collaboration, managing bug bounty programs, integrating AI/ML into security pipelines, using SAST/DAST/SCA tools, Burp Suite, Terraform, Graylog, GCP, and Kubernetes.
Ruby, Go, Rust, JavaScript, Cloud Armor WAF, Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), Software Composition Analysis (SCA), Bug Bounty Programs, Containers, Git, Terraform, Graylog, GCP, Kubernetes, Burp Suite, AI/ML
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3mo
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Epic Tapestry Application Developer
San Francisco or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$48-$58/hr OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years experience with healthcare EHR/Epic, Tapestry UM Epic certification required, strong Tapestry UM and Claims implementation experience, High School diploma/GED, strong interpersonal and clinical workflow skills.
Epic, Tapestry UM, EMR, EHR
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1w
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Product & Application Developer Manager
Irvine or Denver
$128k-$165k/yr OnsiteFull Time
Columbia Bank
Columbia BankNASDAQ: COLB: Commercial and consumer banking services in the Western United States.
7+ YOE4+ MgmtBachelor's in computer science or equivalent,7+ years software development experience,4+ years management,experience with SDLC,Microsoft technology stack,HTML5,CSS3,Ember,NodeJS,and agile methodologies.
HTML5, CSS3, Ember, NodeJS
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1mo
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Building Controls Application Engineer
San Diego or Dallas or Chicago or Waco or Boston or Ashburn or Houston or Lehi or Denver
$120k-$130k/yr HybridFull Time
Mantis Innovation
Mantis Innovation: Provides managed facility services and energy procurement solutions.
10+ YOE10+ years engineering experience, 5+ years BMS application development; DDC and PLC programming, BACnet/Modbus/Ethernet-IP integrations, Niagara (Niagara N4), Ignition, Wonderware, Distech, networking knowledge, and Microsoft Office proficiency.
BMS, SCADA, DDC, PLC, BACnet, Modbus, Niagara, Niagara N4, Ignition, Wonderware, Distech, Ethernet/IP, SNMP, MQTT, Microsoft Office
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7h
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Application Modernization Engineer, Professional Services, Google Cloud
Austin or Atlanta or Boulder or Chicago
$152k-$221k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
6+ YOEBachelor's degree or equivalent,6+ years leading enterprise application portfolios,experience with VMWare,Openshift,Kubernetes,and cloud solution design;proficiency in one or more languages (Python,Java,Go,C/C++).
VMWare, Openshift, Kubernetes, Python, Java, Go, C, C++, Google Cloud Platform
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1mo
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Staff Application Engineer
Burnsville or Loveland or Arlington or Seattle or United States or Charlotte or Waukesha or Merrimack or Houston or Faribault
$130k-$160k/yr HybridFull Time
Trystar
Trystar: Designs and manufactures electrical power distribution and backup equipment.
7+ YOEBachelor's degree in electrical engineering (Master's preferred); 7+ years power industry experience and 5+ years load bank design; expertise in resistive/reactive load bank design, PLC controls, and UL/NEC/IEEE standards; 20-25% travel.
PLC, PowerDyne
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3mo
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Staff/Sr. Staff Application Security Engineer
Boulder, Colorado, United States
$96k-$146k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
2+ YOEBachelor’s degree + 2+ years in cybersecurity or software development; 2+ years in application security; ability to obtain DoD/DoE Secret clearance; strong communication and problem-solving; DoD 8140.01 readiness.
SAST tools, SCA tools, Fuzzing tools, Static analysis tools, Code review tools, CI/CD security tooling, Ghidra, IDA Pro, strace, eBPF, Coverity, Klocwork, SonarQube, Snyk, Sonatype, Anchore, JFrog Xray
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1mo
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Sr. Application Security Engineer
Denver, Colorado, United States
$130k-$165k/yr HybridFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
7+ YOE7+ years in application/product/cloud security; Bachelor's in relevant field or equivalent experience; hands-on experience with threat modeling, secure SDLC, vulnerability management, CI/CD security, cloud (AWS/Azure), API and AI security; strong communication skills.
SAST, DAST, SCA, IaC scanning, container scanning, API security testing, secrets scanning, AI runtime scanning, WAF, CNAPP, CSPM, CI/CD, SIEM, AWS, Azure, OWASP ASVS, NIST CSF, NIST SSDF, OWASP SAMM
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1mo
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Application Support Engineer
Denver, Colorado, United States
$71k-$126k/yr HybridFull Time
Arista Networks
Arista NetworksNYSE: ANET: Provides cloud networking solutions and high-speed multilayer Ethernet switches.
5+ YOE5+ years TAC/support experience; strong Linux and shell scripting; networking (HTTP/TCP/IP/subnetting); cloud service support; REST APIs, Swagger, JSON, curl/Postman/Python; MySQL; excellent communication and analytical skills; MS in technical field required.
Linux, shell scripting, HTTP, TCP, IP, subnetting, REST APIs, Swagger, JSON, curl, Postman, Python, MySQL, browser developer tools, JavaScript
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3w
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EDA Customer Success Application Engineer
Santa Rosa or Colorado Springs or Loveland
$97k-$162k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
5+ YOEB.S. in Electrical Engineering or equivalent with 5+ years experience; background in RF/microwave, RFIC, high-speed digital or EDA support; proficiency with ADS/SystemVue/EM simulation; Python experience; strong communication.
ADS, SystemVue, EM simulation, GoldenGate, Genesys, IC-CAP, MBP, MQA, Python
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1mo
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Copilot & Power Platform Application Engineer
Denver, Colorado, United States
$103k-$149k/yr HybridFull Time
Arrow Electronics
Arrow ElectronicsNYSE: ARW: Distributes electronic components and enterprise computing solutions globally.
6+ YOE6+ years related experience (Microsoft 365, Power Platform, product delivery/consulting). 1–2 years hands-on with Microsoft 365 Copilot and Copilot Studio/agents. Experience designing prototypes, running workshops, advising stakeholders, and shaping governance.
Microsoft 365 Copilot, Microsoft Copilot Agent Builder, Microsoft Copilot Studio, Microsoft Power Platform, Microsoft 365
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Senior Java Developer
Denver or Colorado Springs
OnsiteFull Time
Blue Rose Consulting Group
Blue Rose Consulting Group: Provides IT and management consulting services to government agencies.
8+ YOE8+ years Java development experience with Spring Boot, Hibernate, Struts2/J2EE; experience with cloud (AWS/Azure), CI/CD, unit testing, and secure application development. Active Secret clearance and U.S. citizenship required.
Spring Boot, Hibernate, Struts 2, J2EE, AWS, Azure, Oracle, SQL Server, JUnit, SAML, SAFe, CI/CD, DevSecOps, Login.gov
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1mo
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Senior Principal Engineer – Ground/Application Software
Broomfield or Westminster or Boulder or Colorado or United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
8+ YOEBS in engineering +8 years (or higher degree substitution), active Top Secret/SCI, experience in embedded/satellite software, CI/CD, containerization, cloud (AWS), C/C++, Python, UML, and formal software practices.
CI/CD, Containerization, C/C++, Rust, Python, Ruby, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Qt, SQL, NoSQL, JPA/ORM, UML, Cameo, PlantUML, MATLAB, gtest, ctest, MQTT, AMQP, Kafka, Nginx, Apache, Postgres, DevSecOps
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1w
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Senior ServiceNOW Developer
Lakewood or Phoenix or Folsom or Billings
$135k-$155k/yr OnsiteFull Time
KeyLogic
KeyLogic: Provides technology and mission management solutions to government agencies.
Design, develop, configure, and maintain ServiceNow applications and integrations; strong ServiceNow, JavaScript, REST/SOAP, and platform administration skills; U.S. citizenship and ability to obtain Public Trust required.
ServiceNow, JavaScript, Flow Designer, IntegrationHub, REST, SOAP, MID Server, OAuth, JWT, ServiceNow SDK, Now Assist
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Senior Software Engineer
Denver or United States
$120k-$160k/yr HybridFull Time
DHI Group
DHI GroupNYSE: DHX: Operates specialized career marketplaces and talent acquisition software platforms.
Experience building production-grade applications with Node.js and TypeScript, REST/GraphQL services, React/Next.js, AWS and container deployments; automated testing and AI-native workflows; senior technical leadership and mentoring.
Node.js, TypeScript, RESTful, GraphQL, React, Next.js, AWS, Docker, Fargate, Kubernetes, Playwright, LiteLLM, Python, Java, PostgreSQL, SNS, SQS, Lambda
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1w
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Application Development Senior Advisor
Bloomfield or Austin or St. Louis or Denver or Bloomington or Philadelphia or Morris Plains or Plano
$122k-$204k/yr HybridFull Time
The Cigna Group
The Cigna GroupNYSE: CI: Provides health insurance and pharmacy benefit management services.
6+ YOE6+ years supporting enterprise applications, 3+ years Python, hands-on AWS and monitoring (Dynatrace, Splunk), SRE/ops experience, KPI/SLO measurement, automation and observability skills.
Python, AWS, IAM, EC2, S3, CloudWatch, Lambda, Step Functions, SQS, SNS, Glue, Athena, Dynatrace, Splunk, Docker, Kubernetes, Terraform, Databricks, Snowflake, GitHub Actions, Jenkins
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