API Integrations Developer

Colorado Access • Denver, CO

2d • $118,600 - $133,300 • Hybrid

About The Position

Colorado Access is seeking an API Integrations Developer to help shape their vision and support their mission. This role involves designing, developing, and maintaining RESTful APIs, implementing API best practices, building secure authentication and authorization flows, and creating documentation. The developer will also build integrations with various healthcare systems, translate healthcare data formats, implement HL7 FHIR-based APIs, and apply payer-specific business logic. Additionally, the role includes building ETL pipelines, designing SQL queries, implementing data warehousing patterns, ensuring compliance with HIPAA and CMS interoperability rules, deploying services using containerization and CI/CD pipelines, implementing monitoring and logging solutions, collaborating with infrastructure teams, and writing various types of tests. The goal is to ensure high reliability and auditability of all API endpoints.

Requirements

• Bachelor’s degree in computer science or related field required or an equivalent combination of education and experience.
• 4+ years of backend development experience (Python, Node.js, Java, or .NET).
• Hands‑on experience with HL7 FHIR and X12 EDI transactions.
• Experience working with healthcare payer systems.
• Experience with OAuth2, JWT, RBAC/ABAC, and secure API design.
• Strong understanding of REST API design and distributed systems.
• Strong SQL skills including query optimization and advanced joins.
• Familiarity with HIPAA, CMS interoperability rules, and PHI governance.
• Knowledge of member, provider, claims, encounters, coverage, risk scores, and care gap data structures.
• Strong understanding of HIPAA, PHI/PII handling, CMS interoperability rules, RBAC/ABAC, OAuth2, JWT, and mTLS.
• Knowledge of relational database design, normalization/denormalization strategies, SCDs, snapshot tables, and system‑versioned tables.
• Understanding of Patient Access API, Provider Directory API, and Payer‑to‑Payer data exchange requirements.
• Skilled in designing and implementing RESTful APIs with Python, Node.js, Java, or .NET.
• Ability to build and maintain integrations with EHRs, clearinghouses, PBMs, HIEs, and state Medicaid systems.
• Ability to convert business rules and regulatory requirements into technical API and integration solutions.
• Ability to navigate payer ecosystems, legacy systems, and multi‑vendor healthcare environments.
• Demonstrates support for the company’s mission, vision and values.
• Excellent written and verbal communication skills.
• Proficient in Microsoft office applications (Word, Excel, PowerPoint, Outlook, SharePoint) with ability to work with a variety of project management tools.
• May be required to manage multiple priorities and projects with tight deadlines.
• A valid driver's license and proof of current auto insurance will be required for any position requiring driving.

Nice To Haves

• Preferred experience includes experience implementing a FHIR server or FHIR gateway.
• Experience with EDI translation engines.
• Experience with risk adjustment models.
• Experience with API gateways and reverse‑proxy security patterns.

Responsibilities

• Design, develop, and maintain RESTful APIs using Python (Flask, FastAPI, Django), Node.js, Java, or .NET.
• Implement API best practices including idempotency, pagination, filtering, sorting, and versioning.
• Build secure authentication and authorization flows (OAuth2, JWT, API keys, mTLS).
• Create and maintain OpenAPI/Swagger documentation and Postman collections.
• Develop serialization/deserialization logic for JSON, XML, and healthcare‑specific schemas.
• Build integrations with EHRs, clearinghouses, PBMs, HIEs, CMS systems, and state Medicaid platforms.
• Translate and map X12 EDI transactions (270/271, 276/277, 278, 834, 835, 837) into API‑ready data models.
• Implement HL7 FHIR‑based APIs for Patient Access, Provider Directory, and Payer‑to‑Payer exchange.
• Work with HL7 v2, CDA, and common FHIR resources (Patient, Coverage, Claim, EOB, etc.).
• Apply payer‑specific business logic including eligibility rules, dual‑eligibility, MCO structures, program codes, and retroactive eligibility.
• Support encounter reporting, capitation logic, and risk corridor adjustments.
• Understand state‑specific Medicaid program variations and regulatory requirements.
• Work with payer data models including members, providers, claims, encounters, coverage, risk scores, and care gaps.
• Build ETL pipelines and real‑time data flows using queues, events, and batch processing.
• Design SQL queries, stored procedures, and schemas using SQL Server or Snowflake.
• Implement SCDs, snapshot tables, system‑versioned tables, and Data Vault 2.0 patterns.
• Ensure all API and data workflows comply with HIPAA, CMS interoperability rules, and PHI/PII handling standards.
• Implement audit trails, lineage tracking, and data retention policies.
• Apply the Minimum Necessary Standard across all data access patterns.
• Deploy services using Docker, Kubernetes, and CI/CD pipelines (GitHub Actions, Azure DevOps, Jenkins).
• Implement structured logging, distributed tracing, metrics, and error monitoring using ELK, Datadog, Prometheus, or Grafana.
• Collaborate with infrastructure teams across AWS, Azure, GCP, or hybrid environments.
• Write unit tests (pytest, JUnit), integration tests, and contract tests (Pact).
• Conduct performance testing using k6 or Locust.
• Ensure high reliability and auditability of all API endpoints.

Benefits

• PTO
• floating holidays
• nine company paid holidays
• a hybrid work environment
• an Employee Assistance Program
• a 401K
• tuition reimbursement
• leadership training
• promotion opportunities
• employee recognition
• a language pay stipend
• Medical, dental, vision insurance that starts the first day of the month following start date.
• Supplemental insurance such as critical illness and accidental injury.
• Health care and dependent care flexible spending account options.
• Employer-paid basic life insurance and AD&D (employee, spouse and dependent).
• Short-term and long-term disability coverage.
• Voluntary life insurance (employee, spouse, dependent).
• Paid time off
• Retirement plan
• Annual bonus program (based on eligibility, requirements and performance).

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level