143 api engineer jobs at 68 companies in Black Forest, CO
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API Integrations Developer
Denver, Colorado, United States
$119k-$133k/yr HybridFull Time
4+ YOEBachelor's in CS or related required; 4+ years backend experience (Python, Node.js, Java, or .NET); HL7 FHIR and X12 EDI experience; strong REST API, security (OAuth2, JWT, mTLS), SQL, and HIPAA knowledge; experience with cloud and CI/CD.
Python, Flask, FastAPI, Django, Node.js, Java, .NET, OpenAPI/Swagger, Postman, X12 EDI, HL7 FHIR, HL7 v2, CDA, EHRs, Docker, Kubernetes, GitHub Actions, Azure DevOps, Jenkins, ELK, Datadog, Prometheus, Grafana, AWS, Azure, GCP, SQL Server, Snowflake, Data Vault 2.0, pytest, JUnit, Pact, k6, Locust, OAuth2, JWT, mTLS, RBAC/ABAC, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft SharePoint
1mo
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Senior Software Engineer (Hogan API)
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent and 5+ years relevant experience. Experience with mainframe/Hogan development (COBOL, JCL, CICS), APIs, system design, testing, security, and cross-team collaboration; Scrum familiarity.
Hogan COBOL, JCL, CICS, JSON, Splunk, IMS Database, GitLab, IDz/RDz (IBM Developer for zOS), Jira
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AI Operations Engineer - Supply Chain
Centennial, Colorado, United States
$100k-$135k/yr HybridFull Time
5+ YOE5+ years experience applying automation, data engineering, or AI/ML to operations; production deployment experience; integration with ERP and enterprise systems; strong Python, API, and data pipeline skills; supply chain/manufacturing domain knowledge.
Python, APIs, data pipelines, automation tools, ERP, AI/ML
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Sr. Engineer - Oil & Gas
Lisle or St. Louis or Charlotte or Indianapolis or Greenwood Village
HybridFull Time
5+ YOEBS in engineering (ABET), 5-15 years oil/gas engineering experience, 3+ years project management, knowledge of DOT/API/ANSI/ASME standards, Microsoft Word/Excel/PowerPoint/Project proficiency, valid driver’s license, willing to travel.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Project
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Senior Systems Engineer
El Paso County or Huntsville
$112k-$196k/yr OnsiteFull Time
7+ YOEBS in STEM, 7+ years in systems engineering/software integration/enterprise architecture, active Secret clearance, API integration, MBSE/SysML, cloud/container experience, dashboard and DevSecOps familiarity.
SysML, Cameo, MagicDraw, Sparx EA, Rhapsody, Power BI, Tableau, Grafana, Kibana, Kubernetes, GitLab, Terraform, CI/CD, Link 16
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Agentic AI Software Engineer
King of Prussia or Aurora
$82k-$172k/yr OnsiteFull Time
5+ YOE5+ years software engineering with Python; BS in CS or related field; TS/SCI clearance with CI polygraph; experience building microservices and REST APIs.
Python, Git, GitLab, GitHub, Jira, Confluence, RESTful APIs, Microservices, CI/CD
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Principal Systems Engineer (TS/SCI with CI Polygraph)
Aurora, Colorado, United States
$225k-$300k/yr OnsiteFull Time
15+ YOE15–20 years' related experience; TS/SCI with CI Poly; BS in engineering or related field; MBSE/SysML; API design; cloud/hybrid integration; governance; security/compliance.
MBSE/SysML, JIRA, Confluence, System modeling, API design, Configuration management, Enterprise architecture frameworks, Cloud/hybrid integration
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Senior Backend Engineer
Colorado Springs, Colorado, United States
$160k-$185k/yr HybridFull Time
5+ YOE5+ years software engineering experience; strong Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; cloud architecture, API/backend development, security focus, mentorship and customer integration skills.
Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform
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Senior Electrical Engineer
The Woodlands or Peachtree Corners or Savannah or Tampa or Englewood
OnsiteFull Time
10+ YOEBachelor's in Electrical Engineering or Technology, PE license (or in progress), 10+ years electrical experience, knowledge of IEEE/API/NFPA, experience with fueling/oil & gas/energy projects, AutoCAD/ETAP/SKM proficiency, client interfacing and mentorship experience.
AutoCAD, ETAP, SKM, PLC, SCADA, EFSO/ESD
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Agentic AI Software Engineer
King of Prussia or Aurora
$82k-$172k/yr OnsiteFull Time
5+ YOEActive TS/SCI clearance, polygraphable, Bachelor’s in Computer Science or related, 5+ years software engineering with strong Python, experience with microservices, RESTful APIs, Git and CI/CD, LLMs/agent frameworks, and Agile practices.
Python, Git, GitLab, GitHub, Bitbucket, CI/CD, Jira, Confluence, microservices, RESTful APIs, LLMs, LangGraph, CrewAI, AutoGen, Pydantic AI, MCP, A2A, RAG, vector databases, Langfuse, MLflow, DSPy, AWS, Azure, Kubernetes, Helm, React, Angular, JavaScript, TypeScript
1w
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Project Engineer II: Digital Thread Architect
Lone Tree or Englewood
$165k-$227k/yr HybridFull Time
10+ YOEBachelor's in systems engineering/computer science/engineering,10+ years engineering experience with 2+ years leadership; PLM/MBSE tool integration, requirements-to-design traceability, API/data architecture, configuration management; active Top Secret/SCI clearance and U.S. citizenship required.
Teamwork Cloud, Teamcenter, Windchill, Cameo Systems Modeler, Rhapsody, Jama, 3DExperience, DOORS, MBSE, SysML
1mo
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Senior Integration Engineer
New York or Denver or United States or Europe
$125k-$160k/yr HybridFull Time
5+ YOE5+ years integration engineering; deep Azure Function Apps, Logic Apps Standard, Azure Service Bus, and API/Service Bus configuration; strong C#; CI/CD, IaC (Bicep), Snowflake desirable; active use of AI-assisted development; bachelor's degree required.
Azure Function Apps, Logic Apps Standard, Azure API Management, APIM, Azure Service Bus, Bicep, C#, Snowflake, LLMs, codegen, Claude, CI/CD, IaC, WDL
5d
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Chief Software Systems Engineer
Colorado Springs, Colorado, United States
$99k-$225k/yr OnsiteFull Time
10+ YOE5+ Mgmt10+ years systems engineering experience, Top Secret clearance, 5+ years leading system integration, cloud-native and DevSecOps experience, knowledge of electronic warfare and API lifecycle.
cloud‑native architectures, microservices, API governance, DevSecOps, Kanban, Scrum, SAFE, AI/ML, Zero Trust Architecture
3d
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Production Engineer II
Florence or Denver or Boulder
$105k-$135k/yr OnsiteFull Time
4+ YOE4+ years building production systems; strong Python, backend/API, cloud (AWS) and Docker experience; experience with logging, monitoring, reliability, and multi-environment systems.
Python, AWS, Docker, ROS2, CI/CD
2w
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BIM Integration Developer - Kiewit Infrastructure Engineers
Omaha or Lone Tree
$92k-$111k/yr OnsiteFull Time
3+ YOE3+ years software development; bachelor’s in CS/SE/Engineering or equivalent; strong C#/.NET, REST API, React, SQL, Git, CI/CD; familiarity with BIM, ETL, and cloud platforms.
C#, .NET, RESTful APIs, React, JavaScript, TypeScript, SQL, Git, CI/CD, MongoDB, elasticsearch, IFC, Microsoft Azure, Copilot
3d
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Senior Data Engineer
Denver, Colorado, United States
$145k-$155k/yr OnsiteFull Time
5+ YOERequires 5+ years of data engineering experience, advanced SQL, ETL/ELT pipeline development, Azure Data Factory or SSIS, data modeling, API integrations, version control, communication skills, and a bachelor's degree or equivalent experience.
Azure Data Factory, SSIS, Microsoft SQL Server, SQL, API, version control
2w
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Senior Platform Integration Engineer
Littleton, Colorado, United States
$96k-$138k/yr OnsiteFull Time
5+ YOEBachelor's in CS/IT/CE,5+ years in platform integration/systems engineering,3+ years with entitlement servers/eSIM/API/CI-CD or IaC,strong troubleshooting and networking expertise.
GSMA TS43, eSIM, MDM, API, CI/CD, infrastructure-as-code, Terraform, Kubernetes, Retrieval-augmented generation (RAG)
1mo
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Software Integration Engineer
Warrenton or Fort Eisenhower or Centennial or Augusta
$150k-$200k/yr OnsiteSeasonal
8+ YOEU.S. citizen with active TS/SCI, Bachelor's in CS/IS/Software Engineering, minimum 8 years relevant experience, end-to-end API/integration ownership, experience with REST/SOAP/GraphQL and Kafka/Azure Service Bus/SQS.
APIs, REST, SOAP, GraphQL, Kafka, Azure Service Bus, SQS
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Lead Test Automation Engineer - Level 4
Schriever Space Force Base or Colorado Springs
$118k-$176k/yr OnsiteFull Time
4+ YOEAbility to lead test automation strategy and teams, design and integrate automated unit/API/UI tests, embed automation in CI/CD, obtain U.S. Secret clearance; STEM degree with relevant years of experience (see degree-experience options).
C++, C#, Java, Python, JUnit, TestNG, NUnit, xUnit, pytest, REST Assured, Postman, Newman, Karate, Selenium WebDriver, Playwright, Cypress, Jenkins, GitHub Actions, GitLab CI, Azure DevOps, Jira, Confluence, Git, Scrum, Kanban, SAFe
1mo
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Lead Test Automation Engineer - Level 4
Schriever Space Force Base or Colorado Springs
$118k-$176k/yr OnsiteFull Time
4+ YOESTEM degree (Bachelor's/Master's/PhD) with 8/6/4+ years respectively; experience leading test automation, CI/CD integration, automated unit/API/UI testing, Agile familiarity, strong communication, and ability to obtain/maintain U.S. Secret clearance.
C++, C#, Java, Python, JUnit, TestNG, NUnit, xUnit, pytest, REST Assured, Postman, Newman, Karate, Selenium WebDriver, Playwright, Cypress, Jenkins, GitHub Actions, GitLab CI, Microsoft Azure DevOps, Jira, Confluence, Git, Scaled Agile Framework (SAFe)
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