Senior Backend Engineer - HealthTech, Serverless APIs

Oxbridge Health; Norwalk (CT); On-site; USD 180,000 - 230,000; Full time

Job summary

Oxbridge Health in Norwalk, CT is seeking a Senior Backend Engineer to design and implement high-scale, serverless services on AWS using Python, DynamoDB, API Gateway, and related technologies. You will own end-to-end delivery from architecture through deployment, monitoring, and continuous improvement in a healthcare-focused environment.

You will build data pipelines, APIs, and event-driven workflows for B2C and B2B integrations, ensure HIPAA-compliant data handling, mentor engineers, and drive

Qualifications

• 7+ years of backend engineering experience.
• Expert-level AWS serverless including Lambda, DynamoDB, API Gateway, Step Functions, Kafka/SQS, and event-driven architectures.
• Strong Python fundamentals, including TDD, dependency injection, modular code, and clean design patterns.
• Deep understanding of high-scale system design, distributed computing, data modeling, fault tolerance, and observability.
• Experience building B2C and B2B systems serving thousands of users and millions of transactions.
• Proficiency with PostgreSQL, DynamoDB, RDS, Kafka, caching strategies, and database schema design.
• Strong experience building scalable, public-facing RESTful APIs.
• Strong ownership mindset and delivering high-quality, reliable systems from design to production.
• Experience collaborating with SecOps, DevOps, and analytics teams, with GitHub Actions, IaC, and automated pipelines.
• Excellent verbal and written communication skills and cross-functional collaboration abilities.
• Bonus: healthcare EDI standards (837/834), payer systems, claims processing, HIPAA compliance, or health-tech domain.

Responsibilities

• Design and build large-scale, serverless systems on AWS.
• Create durable workflows for claims processing and eligibility updates.
• Develop back-end services in Python with TDD.
• Own end-to-end deployment, monitoring, and iteration.
• Build CI/CD pipelines and infrastructure-as-code, with observability dashboards.
• Mentor engineers and drive scalable architectural decisions.
• Collaborate with product to refine requirements and deliver features.

Skills

AWS serverless

Python

TDD

Distributed systems

RESTful APIs

Security & HIPAA

Mentoring

CI/CD

GitHub Actions

Observability

Data modeling

Event-driven architectures

Architecture design

Tools

AWS Lambda

DynamoDB

API Gateway

Step Functions

Kafka

SQS

SNS

RDS

Job description

Oxbridge Health in Norwalk, CT is seeking a Senior Backend Engineer to design and implement high-scale, serverless services on AWS using Python, DynamoDB, API Gateway, and related technologies. You will own end-to-end delivery from architecture through deployment, monitoring, and continuous improvement in a healthcare-focused environment.

You will build data pipelines, APIs, and event-driven workflows for B2C and B2B integrations, ensure HIPAA-compliant data handling, mentor engineers, and drive