16 api specialist jobs at 12 companies in Lone Tree, CO

3mo
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IT Specialist (APPSW) - .NET - DHA
Denver or Urbana or Woodlawn or Durham or Wilkes Barre
$91k-$140k/yr OnsiteFull Time
Social Security Administration
Social Security Administration: Administers federal social insurance and financial assistance programs.
1+ YOEIT specialist with .NET/.NET Core experience, REST APIs, SQL Server, and frontend skills; familiarity with AI tools and security controls preferred.
C#, NET Core, NET Framework, Entity Framework, MVC, JavaScript, AJAX, jQuery, Bootstrap, HTML, CSS, SQL Server, Visual Studio, Azure DevOps, Git, JSON, REST API
6d
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Supervisory IT Specialist
Salt Lake City or Seattle or Phoenix or Los Angeles or San Francisco or Denver or Washington or Miami or Atlanta or Chicago or Indianapolis or New Orleans or Boston or Minneapolis or Kansas City or Albuquerque or New York or Oklahoma City or Portland or Austin
$126k-$164k/yr OnsiteFull Time
Department of Veterans Affairs
Department of Veterans Affairs: Provides healthcare and benefits to United States military veterans.
1+ YOEU.S. citizen required. GS-14 IT specialist with experience leading cloud-native Master Data Management platforms, designing APIs, ETL/ELT/CDC integration, platform operations, and technical leadership; specialized experience equivalent to 1 year at GS-13.
REST, Extract-Transform-Load (ETL), Extract-Load-Transform (ELT), Change Data Capture (CDC), event streaming
3w
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IT Specialist (AI)
Salt Lake City or Seattle or Phoenix or Los Angeles or San Francisco or Denver or Washington
$106k-$197k/yr OnsiteFull Time
Department of Labor
Department of Labor: Protects American workers' rights and ensures fair labor practices.
1+ YOEIT-related competencies and 52 weeks specialized experience at the next lower grade (GS-12->GS-13 or GS-13->GS-14). Experience with data pipelines, ETL/ELT, AI/ML model development and integration, cloud-based components and APIs; background investigation required.
ETL/ELT, APIs, Machine Learning
1mo
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Sr. Workfront Solutions Specialist
Denver or Boston or Chicago or Kansas City or Raleigh or United States
$88k-$130k/yr RemoteFull Time
MERGE
MERGE: Provides marketing and technology services for health and wellness brands.
5+ YOE5+ years in Martech/Marketing Operations, 3+ years configuring Workfront or similar SaaS, bachelor’s preferred, integration/API experience, strong communication and strategic problem-solving.
Workfront, Workfront Fusion, Workato, API
1w
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Customer Support Specialist - Tier 1
Denver, Colorado, United States
$50k-$55k/yr HybridFull Time
Intellistack
Intellistack: Offers a no-code platform for forms and workflow automation.
1+ YOE1–2 years customer support experience (SaaS preferred); basic APIs/webhooks knowledge; strong communication, troubleshooting, and time-management; willing to work holidays and late shifts; comfortable with modern software and AI-assisted tools.
Salesforce, Zendesk, HubSpot, APIs, webhooks, SSO, AI-assisted tools, HTML, CSS, JavaScript, PHP, Java
2d
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Technical Onboarding Specialist
Boulder or Colorado
$60k-$90k/yr RemoteFull Time
Outside Interactive
Outside Interactive: Provides digital content and software for outdoor lifestyle enthusiasts.
5+ YOE5+ years supporting SaaS implementations/onboarding, strong troubleshooting, API/SQL familiarity, Postman experience, client-facing communication, technical documentation skills.
Postman, Acoustic, ActiveCampaign, Salesforce Marketing Cloud, HubSpot, SQL, REST APIs, API Gateway, Host Adapter, Queue Director, Insight
2mo
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Specialist Software Engineering
Cedar Rapids or Denver or Philadelphia
$131k-$165k/yr HybridFull Time
Transamerica
TransamericaNYSE: AEG: Provides insurance, retirement solutions, and investment products to customers.
8+ YOEBachelor’s degree or equivalent; 8+ years Core Java; frontend frameworks; CI/CD tools; microservices; cloud (AWS); REST APIs; Docker/Kubernetes; Jenkins; Git; Maven; Swagger; Kafka; OpenShift; data/analytics familiarity.
Java, Frontend frameworks, Spring Framework, J2EE, Angular, React, Vue.js, Node.js, HTML, CSS, Ajax, Jenkins, Docker, Containers, OpenShift, Kubernetes, API Gateways, Apache Camel, Swagger API, Zookeeper, Kafka, messaging tools, microservices, AWS, EC2, S3, Kinesis, SQL, Data warehouse, ARM Templates, Event Hubs, Git, Bitbucket, Maven, Junit, Ajax
2w
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Partner Integration and Digital Market Specialist
Centennial, Colorado, United States
$65k-$95k/yr OnsiteFull Time
Yield Solutions Group
Yield Solutions Group: Provides auto loan refinancing and mortgage solutions for consumers.
2+ YOEBachelor's degree required; 2+ years partner-facing or digital marketing experience; working knowledge of API integrations, technical onboarding, and campaign execution; strong communication and project management skills.
API, Google Ads, Meta Ads Manager, HubSpot, Marketo, Klaviyo, Salesforce, Asana, Jira, Confluence, Notion, Google Analytics, Looker, Tableau
1w
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Technical Adoption Specialist- Forma, APS, & Automation
California or Massachusetts or Boston or Novi or Atlanta or Denver or Portland
$76k-$137k/yr RemoteFull Time
Autodesk
AutodeskNASDAQ: ADSK: Developing software for architecture, engineering, and entertainment industries.
5+ YOEBachelor's or equivalent, 5+ years experience in AEC or related automation, experience with Cloud APIs, Postman, HTTP/JSON, scripting, and strong communication and project management skills.
Postman, Autodesk Platform Services, VB, PowerShell, .NET, Python, C, C++, Workato, PowerAutomate, JSON, HTTP
2w
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Applied AI Specialist, Commercial Customer Success
United States or Alaska or California or Connecticut or Georgia or Maryland or Massachusetts or New Jersey or New York or Rhode Island or Austin or Boulder or Chicago or Dallas or Denver or Houston or Seattle or Washington
$106k-$142k/yr RemoteFull Time
Samsara
SamsaraNYSE: IOT: Connected Operations Cloud platform for physical operations and IoT.
3+ YOE3+ years technical/software experience including 1+ year building production LLM agents; Python proficiency; experience integrating AI with CRMs/APIs; B2B SaaS experience; ability to define eval frameworks and monitor production agents.
Python, Salesforce, Samsara platform, Anthropic Claude, Gainsight, Tofu
2w
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Security Testing Specialist Sr - Tuesday - Saturday - 11pm - 7am MST
Denver or Phoenix or United States
$112k-$229k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
8+ YOEExperienced application security tester with manual and automated dynamic testing experience, familiarity with Burp Suite and OWASP Top 10, API and cloud testing preferred, typically 8+ years experience and a bachelor\u0002s degree.
Burp Suite, Agentic AI, OWASP Top 10
3w
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Security Testing Specialist - Tuesday - Saturday 3pm - 11pm MST - Application Security
Denver or Phoenix or The Biltmore
$100k-$186k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
5+ YOEExperienced application security tester with 5+ years industry experience, skilled in Burp Suite, manual and automated dynamic testing, OWASP Top 10, API and cloud security testing, and stakeholder risk review.
Burp Suite, Agentic AI, OWASP Top 10
3w
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Security Testing Specialist Sr - Sunday - Thursday 3pm - 11pm MST - Application Security
Denver or Phoenix or The Biltmore
$123k-$229k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
8+ YOESenior security tester with expertise in application, API, cloud, AI/LLM and infrastructure security testing, DAST and penetration testing; typically 8+ years' relevant experience and a bachelor's degree; certifications often required.
DAST, AWS, Azure, Google Cloud Platform (GCP), OWASP Top 10, LLMs
3w
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Security Testing Specialist Sr - Sunday - Thursday 11pm - 7am MST - Application Security
Denver or Phoenix
$123k-$229k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
8+ YOEExperienced application security tester with Burp Suite and automated dynamic testing experience; familiar with OWASP Top 10, API security, cloud environments, and attack methodologies; typically 8+ years experience and a bachelor's degree.
Burp Suite, Agentic AI, OWASP Top 10
6d
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Specialist Software Engineering
Cedar Rapids or Denver or Philadelphia
$131k-$165k/yr HybridFull Time
Transamerica
TransamericaNYSE: AEG: Provides insurance, retirement solutions, and investment products to customers.
12+ YOEBachelor's degree or equivalent, 12+ years software/devops experience, strong CI/CD expertise, Python and Bash scripting, deep AWS, containerization, IaC (Terraform), Java or .NET experience, database and API knowledge.
Harness, Jenkins, Python, Bash, AWS, ECS, EKS, EC2, Lambda, S3, ASG, IAM, Docker, Nexus, Artifactory, Terraform, Visual Studio, git, Github, Maven, AgentCore, Strands, Kiro IDE, .NET, C#, JAVA, Spring Framework, J2EE, SqlServer, DynamoDB, API Gateways, Apache Camel, Swagger, Spring Boot, Spring MVC, Entity Framework, IIS, Kubernetes, Bitbucket, Angular, React, Vue.js, ASP.NET MVC, HTML, JS, CSS, Ajax, Kinesis, Event Hubs
1w
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Integration Engineer (Epic Integration Specialist)
Denver, Colorado, United States
$120k-$130k/yr HybridFull Time
Eon
Eon: AI platform for managing incidental findings and patient care.
4+ YOE4+ years in healthcare integrations with deep Epic experience, .NET (C#), HL7/FHIR, AWS, API and data pipeline development, strong communication and problem-solving skills.
.NET (C#), HL7, FHIR, CCD, CDA, Lambda, API Gateway, S3, RDS, ECS, Terraform, CloudFormation, REST, SOAP, Epic Bridges, Care Everywhere