Public Health API Engineer

Flourish & Thrive Labs

12d•$95,000 - $107,500•Remote

About The Position

We're seeking a Senior API Engineer who pairs deep integration and API design expertise with a strong understanding of public health operations. You'll own API and integration architecture on complex implementations, coach less experienced engineers, and shape how data moves between the systems that public health teams depend on every day. This role is about building APIs and integrations that fit how public health actually operates. Your background in public health means you understand the human stakes of this work. A delayed notification, a dropped record, or a broken data feed affects real people and real public health responses. You'll anticipate needs that clients haven't named yet, push back on designs that won't hold up in production, and advocate for the end users who rely on these systems. You'll work on our PH360 platform and on client implementations that often involve inherited integrations built by previous vendors. You'll partner with Salesforce developers, solution architects, and QA to make APIs reliable, observable, and aligned with API-led best practices. You'll also coach client technical teams, helping them adopt sound patterns and grow their skills. If you've ever inherited a tangle of integrations and wanted to set them right, this is your chance to build it right.

Requirements

5+ years of hands-on API development and systems integration experience at a senior level
1-3 years working for a governmental public health agency (local, state, federal, or tribal)
Strong backend engineering background in Java, Python, Node.js, or a comparable language
Experience working in Agile or SAFe environments
Strong collaboration and communication skills
Track record of mentoring or guiding less experienced engineers, including across organizational boundaries
Expertise in API-led connectivity and clear judgment on when a service belongs at the System, Process, or Experience layer
Experience designing API contracts with OpenAPI Specification (OAS), RAML, or equivalent
Deep experience with REST and SOAP APIs, including OAuth 2.0, mTLS, and JWT
Strong data transformation skills across JSON, XML, and flat-file formats
Familiarity with asynchronous messaging patterns, including queues, topics, and event streams (SQS, SNS, Kafka, Anypoint MQ, or similar)
Experience deploying and operating services in cloud or hybrid environments (AWS preferred)
Proficiency in automated unit and integration testing, with meaningful coverage of integration flows
Strong understanding of error handling, retry strategies, and observability in distributed systems
Experience with API gateways and lifecycle management
Experience with version control (Git) and CI/CD practices (Maven, GitHub Actions, or comparable tooling)

Nice To Haves

MuleSoft development experience on Mule 4, including Anypoint Studio, API Manager, Runtime Manager, DataWeave, and MUnit
MuleSoft Certified Developer or MuleSoft Certified Integration Architect
Experience integrating with Salesforce (Bulk API, Streaming API, Platform Events, Change Data Capture)
Familiarity with HIPAA compliance requirements and PHI handling in integrations
Experience with SAFe Agile methodology
Background in public health data systems, including HL7, FHIR, immunization information systems (IIS), or electronic case reporting (eCR)
Experience with notification platforms and event-driven architectures
Experience building or consuming AI and LLM APIs (AWS Bedrock or similar)

Responsibilities

Design, build, and maintain APIs and integrations across the API-led layers (System, Process, and Experience)
Lead API architecture discussions and contribute to solution design alongside architects
Audit inherited APIs and integrations and propose corrections, including restructuring services that sit at the wrong architectural layer
Coach client technical teams on API best practices, helping them move from ad-hoc patterns to sound API-led design
Mentor junior engineers through pair programming, code reviews, and direct guidance
Write clean, well-documented, testable code with robust error handling, retry logic, and observability
Identify and resolve complex integration challenges across Salesforce, notification platforms, and other connected systems
Collaborate with Salesforce developers and QA to ensure end-to-end quality across integrated workflows
Translate public health workflows into reliable, scalable API and integration patterns
Contribute to code reviews with constructive, supportive feedback