173 python api developer jobs at 106 companies in Castle Pines, CO
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API Engineer
Boulder, Colorado, United States
$80k-$110k/yrHybridFull Time
Lynker: Provides scientific and technical services for environmental and climate data.
1+ YOEExperience building and maintaining APIs, data schemas/versioning, testing and CI/CD; proficiency with Git, Linux, and modern programming languages; Master's or Bachelor's plus 1-2 years API/pipeline experience.
Colorado Access: Provides managed care and health insurance for Medicaid members.
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
Pittsburgh or Strongsville or Denver or Birmingham or Dallas or Cleveland
$40k-$158k/yrOnsiteFull Time
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
3+ YOELead software engineer with experience leading teams, Java/Spring and Angular expertise, API and Oracle experience, Agile/Scrum background, containerization (OpenShift/Kubernetes), Python preferred, bachelor's degree and 3+ years relevant experience.
Java, Spring Framework, Angular, OpenShift, Kubernetes, Python, Oracle, Agile, Scrum
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
Bachelor's degree or equivalent experience, significant application development experience (case management/ticketing), advanced Python and JavaScript, API design, Microsoft SQL Server and AWS Athena, CI/CD pipeline familiarity, AI literacy, strong collaboration and documentation skills.
Python, JavaScript, Microsoft SQL Server, AWS Athena, API, CI/CD
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOEBachelor's in CS or related,8+ years software development experience,expert Java and/or Python,REST APIs,databases,CI/CD,GIT,TS/SCI clearance and polygraph willingness.
KPMG: Global professional services network providing audit, tax, and advisory.
1+ YOE1+ year software development experience; Bachelor's in computer science/engineering required (Master's preferred); experience with microservices, REST APIs, authentication, Python/.NET/C#/Angular/SQL and Azure; ML framework experience preferred.
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years designing and developing software; proficiency with Python or Java; experience building RESTful APIs, cloud environments (AWS/Azure/GCP), and full-stack development; TS/SCI clearance with polygraph; Bachelor's in STEM required.
Orlando or Tampa or Lakeland or Melbourne or Daytona Beach or Las Vegas or Denver or Houston
$70-$75/hrRemoteFull Time, Contract
CAI: Provides global IT services and contingent workforce management solutions.
7+ YOE2+ Mgmt7+ years full‑stack development, 2+ years lead experience; hands‑on with Oracle/PL‑SQL, APIs/integrations, Microsoft Azure (.NET), Angular, Python; DevOps/CI/CD; experience with AI tools; strong client communication; must have work authorization not requiring sponsorship.
Odyssey Systems: Provides engineering, integration, and technical services to defense clients.
1+ YOEUS citizen with active Secret clearance, B.S. in a STEM field, 1+ years software development experience; proficiency in TypeScript/Python/Java/C++/Rust/Julia, React, REST APIs, and writing tested, maintainable code.
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City 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 San Francisco 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 Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yrHybridFull Time
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
Arlington or Woburn or Carlsbad or Aurora or Boston or Dayton or Melbourne
$140k-$170k/yrHybridFull Time
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOEProven Java and Spring development experience, microservices and API design, containerized infrastructure (Docker/Kubernetes), experience with Kafka/NATS and GitLab, Python for AI/data integration, and ability to obtain Top Secret clearance.
Java, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
4+ YOEBachelor's or master's degree in a quantitative field, 4+ years of ML development and production deployment, Python, PyTorch, cloud platforms, GenAI services, NLP, and API-based applications.
Python, PyTorch, AWS, Azure, OpenAI GPT, Anthropic Claude, Google Gemma
Lakewood or Casper or Utah or Wyoming or Texas or Colorado
$105k-$158k/yrOnsiteFull Time
Tallgrass: Provides midstream energy infrastructure and delivery services.
5+ YOEBachelor's degree or 7+ years Maximo experience; 5+ years system development experience using C#, Python, Java, REST API/JSON, and SQL; MS SQL/Oracle, DevOps (git/git-hub), Maximo MAS development, strong communication and analytical skills.
Maximo Application Suite (MAS) Manage, Maximo Integration Framework (MIF), Maximo BIRT, Microsoft Fabric, Power BI, C#, Python, Java, REST API/JSON, SQL, MS SQL, Oracle, git, git-hub, WinForms, Microsoft .Net, Microsoft Excel, Microsoft Word, Microsoft Access, Microsoft PowerPoint, Microsoft Outlook
Johns Manville: Manufactures high-performance insulation, roofing systems, and engineered fibers.
5+ YOEExperience with Automation Anywhere (A360) and Microsoft Power Automate, enterprise integrations (SAP ECC), REST/SOAP APIs, SQL, scripting (Python, C#, JavaScript or VBScript), CI/CD and production support; bachelor’s in CS/IT required.
Automation Anywhere (A360), Microsoft Power Automate, SAP ECC, REST, SOAP, JSON, XML, Microsoft Outlook, Microsoft Excel, Microsoft SharePoint, webMethods, Git, Microsoft Azure DevOps, Python, C#, JavaScript, VBScript, SQL, Power Apps, Power BI
Frontera Health: AI-driven platform for automating and improving autism clinical care.
7+ YOE7+ years software engineering with backend focus; experience designing and scaling backend systems, APIs, distributed systems, and data platforms; proficiency in Python or Node.js and relational/NoSQL databases; strong system design and communication skills.
LMI: Provides management consulting and digital solutions to government agencies.
5+ YOEBachelor's in CS or related,5–10 years backend development,proficiency in Python/Java/Node.js,REST APIs,relational/NoSQL databases,Git,TS/SCI clearance eligibility.
RAPTR, Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services, Microsoft Azure, Docker
Chicago or Denver or Houston or Minneapolis or New York City
$116k-$223k/yrOnsiteFull Time
Spaulding Ridge: Global advisory and cloud technology implementation firm.
7+ YOE7+ years consulting or related experience; strong Snowflake architecture, SQL, data modeling, ELT/ETL, dbt, full-stack development (Python, JavaScript/TypeScript), API/integration experience, client advisory and team leadership.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active Final Secret clearance and US passport, 8140-compliant certification (e.g., Security+), proficiency in Python/Java/Bash/Powershell, CI/CD (GitLab, Jenkins), Git, REST API, DevOps/automation, and strong communication skills.
LMI: Provides management consulting and digital solutions to federal government agencies.
5+ YOEBachelor's in CS/CE or related, 5+ years backend development, proficiency in Python/Java/Node.js, RESTful API design, experience with PostgreSQL/MongoDB, familiarity with Django/Flask/Spring and Git, ability to work with data-intensive systems.
Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services (AWS), Microsoft Azure, Docker