81 api developer integration engineer jobs at 68 companies in Littleton, CO
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Integration Engineer (Epic Integration Specialist)
Denver, Colorado, United States
$120k-$130k/yr HybridFull Time
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
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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
2mo
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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
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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
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)
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Senior Integration Engineer
New York or Denver
$125k-$160k/yr HybridFull Time
5+ YOE5+ years integration engineering experience with Azure Function Apps, Logic Apps, Service Bus, API Management, strong C# skills, AI-assisted development experience, CI/CD and IaC (Bicep); Bachelor's degree or equivalent.
Azure Function Apps, Logic Apps Standard, Azure API Management (APIM), Azure Service Bus, Bicep, C#, Snowflake, LLMs, Claude, codegen, IaC, CI/CD, WDL
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
2w
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Senior Backend and Integration Engineer (IT)
Denver, Colorado, United States
$85k-$135k/yr RemoteFull Time
7+ YOE7+ years back-end and integration engineering experience; Node.js, SQL, cloud database migrations, GCP BigQuery/Cloud SQL, Salesforce and middleware integration; strong security and API design skills.
Node.js, Salesforce, BigQuery, Cloud SQL, Google Cloud Platform (GCP), Microsoft SQL Server, Fuse, OWASP
3mo
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Principal Integration and Test Engineer
Boulder, Colorado, United States
$160k-$180k/yr OnsiteFull Time
3+ YOEDesign, develop, and execute CI/CD tests; verify system functionality; collaborate in Agile team; DoD Secret clearance.
Jira, Confluence, GitLab CI/CD, Docker, APIs
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Senior Software Engineer – API & Cloud Integrations (Java, AWS)
Denver or Cedar Rapids or Philadelphia
$94k-$120k/yr HybridFull Time
3+ YOEBachelor’s or equivalent experience; 3+ years Core Java; experience with Spring, microservices, APIs, databases (RDBMS/NoSQL), cloud (AWS/Azure), CI/CD, and integration frameworks; strong analytical and communication skills.
Java, Core Java, Spring Framework, Spring Boot, Spring MVC, J2EE, Entity Framework, IIS, Swagger, Swagger API, OData, .NET API 2, .NET API Core, AutoMapper, MS Cosmos DB, Microsoft Cosmos DB, Apache Cassandra, Amazon DynamoDB, AWS, Azure, EC2, ECS, S3, Kinesis, Microsoft VMs, Microsoft Blob, Microsoft Data Factory, Microsoft SQL Data Warehouse, Microsoft ARM Templates, Microsoft Event Hubs, Visual Studio, Git, Bitbucket, Maven, Jenkins, Nexus, SQL Management Studio, NUnit, Ajax, MS HPC, SageMaker, Spark, API Gateways, Apache Camel, Zookeeper, Kafka, Docker, OpenShift, Kubernetes, Angular, React, Vue.js, ASP.NET MVC, HTML, JS, CSS
2mo
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Integration Product Manager & Developer Advocate
Westminster or Lake Oswego
$145k-$199k/yr OnsiteFull Time
7+ YOE7+ years in product management, DevRel, software engineering, or technical program management; strong SQL, REST API, and SDLC proficiency; domain expertise in construction finance; hands-on Trimble Vista/Spectrum experience; excellent communication.
SQL, REST APIs, Trimble Vista, Trimble Spectrum, Procore
2mo
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Integration Product Manager & Developer Advocate
Westminster or Lake Oswego
$145k-$199k/yr OnsiteFull Time
7+ YOE7+ years in product management, DevRel, software engineering, or technical program management; proficiency with SQL, REST APIs, and SDLC; domain expertise in construction financial workflows; hands-on Trimble Vista/Spectrum experience; strong communication.
SQL, REST APIs, Trimble Vista, Trimble Spectrum, Procore
1mo
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Senior Platform Engineer, AI
Denver or Long Beach
$170k-$275k/yr HybridFull Time
5+ YOE5+ years software/cloud/DevOps experience; production development in Python/TypeScript/Java; experience with LLM APIs, prompt engineering, RAG, agent frameworks, API integrations; ability to obtain Top-Secret clearance and U.S. citizenship or equivalent status.
Python, TypeScript, Java, CrewAI, Pydantic AI, API, webhooks, MCP, Retrieval-Augmented Generation (RAG), AWS, Azure, GCP, AWS GovCloud, Azure Government, FedRAMP, NIST 800-53, IL4, IL5
1mo
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Senior+ Software Engineer - Integrations Platform
Denver or San Francisco or India
$160k-$240k/yr OnsiteFull Time
6+ YOE6+ years backend/full-stack engineering experience building APIs, integration platforms or data pipelines; strong system design and distributed systems knowledge; technical leadership and mentoring experience; experience with third‑party integrations (EHRs) and regulated data preferred.
APIs, EHRs, AI/ML
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Staff SW Engineer
Denver, Colorado, United States
$124k-$199k/yr HybridFull Time
5+ YOE5+ years relevant experience (or equivalent advanced degree/experience), strong backend development (e.g., Java), API and database expertise, systems integration and data structure knowledge, familiarity with Kubernetes/Docker, strong collaboration and communication.
Java, APIs, Kubernetes, Docker
2mo
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People Systems Developer
Boston or Denver or New York
$145k-$215k/yr HybridFull Time
3+ YOE3-5 years in software engineering or advanced automation; experience with LLMs, AI-enabled workflows, and production integration; strong API integration (n8n, Zapier, Workato); familiarity with HR systems; independent in fast-paced environments; clear stakeholder communication.
LLMs, APIs, n8n, Zapier, Workato, Workday, Greenhouse, Claude, OpenAI, Anthropic, Gemini, Cursor
4w
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App Engineer
Denver, Colorado, United States
$100k-$115k/yr HybridFull Time
Proficient PHP and WordPress multisite development, React/Gutenberg block development, SCSS/CSS, JavaScript (ES6+), Git, Composer, npm, Docker, Jira; experience working in Agile teams and integrating third-party APIs.
PHP, WordPress, WordPress VIP, React, JavaScript (ES6+), SCSS, Git, Docker, Composer, npm, Jira, GitHub Copilot, PHP Unit, Veracode
1mo
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Frontend Engineer
Toulouse or San Francisco or Golden
OnsiteFull Time
Proficiency in TypeScript, HTML, CSS, experience with Vue.js or React, SPA development, GraphQL APIs, and unit/integration testing (e.g., Vitest, Jest, Cypress). Web Components and geospatial libraries are a plus.
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components (Lit), Leaflet, Mapbox, CesiumJS
1mo
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Forward Deployed Engineer
New York City or Denver
$204k-$240k/yr OnsiteFull Time
Legora: AI workspace for legal document research and drafting.
Experienced generalist engineer with backend, APIs, auth (SAML/OIDC), and integration experience; customer-facing technical delivery skills and strong communication.
SAML, OIDC, REST, iManage, NetDocuments, Microsoft SharePoint
3d
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Software Engineer 2 - ServiceNow developer Fleet Product Group
Hopkins or Englewood
$105k-$124k/yr HybridFull Time
3+ YOERequires a bachelor's degree or equivalent experience, 3–5 years of relevant experience, ServiceNow development, CSM and ITSM, JavaScript, REST APIs, integrations, workflows, and Agile Scrum experience.
ServiceNow, ServiceNow Customer Service Management, ServiceNow IT Service Management, JavaScript, REST APIs, Scripted REST APIs, Flow Designer, Workflow Editor, Advanced Work Assignment, Agent Chat, Configurable Workspace, Service Portal, Business Rules, Script Includes, UI Actions, Scheduled Jobs, UI Pages, UI Macros, CMS, HTML, CSS, AngularJS, Now Assist