Senior Backend Engineer

Oxbridge Health; Norwalk (CT); On-site; USD 140,000 - 210,000; Full time

Job summary

Oxbridge Health is seeking a Senior Backend Engineer to lead the design and implementation of high-scale, serverless backend services on AWS using Python. You will own systems end-to-end—from architecture and implementation through deployment, monitoring, and continuous improvement—ensuring reliability, performance, and security for healthcare workflows.

You will collaborate with engineering, analytics, product, and operations teams to build data pipelines, APIs, and event-driven workflows for

Qualifications

• 7+ years backend engineering experience.
• Expert AWS serverless stack including Lambda, DynamoDB, API Gateway, Step Functions, Kafka/SQS.
• Strong Python with TDD and clean design principles.
• Experience designing high-scale, distributed systems with observability.
• Experience building B2C and B2B systems serving thousands of users.
• Proficient in PostgreSQL, DynamoDB, RDS, Kafka and caching strategies.
• Strong RESTful API design and ownership mindset.
• Collaboration with SecOps/DevOps, GitHub Actions, and IaC.

Responsibilities

• Design and implement large-scale serverless backend services.
• Own systems end-to-end from design to production.
• Develop data pipelines, APIs, event-driven workflows.
• Ensure security and HIPAA-aligned data handling.
• Mentor engineers and collaborate with product and analytics teams.

Skills

7+ years backend engineering

AWS serverless

Python

TDD

Distributed systems

PostgreSQL

DynamoDB

RESTful APIs

Kafka/SQS

Observability

Security/compliance (HIPAA)

GitHub Actions

IaC

Collaboration with SecOps/DevOps

B2C/B2B platforms

Tools

GitHub Actions

IaC

Job description

Company Overview

Our company is a start-up that specializes in episodes of care benefit plans. We have a deep expertise in episode pricing and analytics and our goal is to bring transparency and efficiency to the healthcare market. Our company is committed to providing high-quality, affordable healthcare to our customers.

Company Overview

Our company is a start-up that specializes in episodes of care benefit plans. We have a deep expertise in episode pricing and analytics and our goal is to bring transparency and efficiency to the healthcare market. Our company is committed to providing high-quality, affordable healthcare to our customers.

Role Description

The Senior Backend Engineer will lead the design and implementation of high-scale, serverless backend services using AWS, Python, Relational and NoSQL database, and modern architectural designs. You’ll own systems end-to-end, from design, development, and testing, through deployment, monitoring, and ongoing improvements. You will collaborate with engineering, analytics, product, and operations teams to build data pipelines, APIs, event-driven workflows, and durable processing engines that are foundational to delivering an exceptional, predictable healthcare experience. This role owns services end-to-end—from architecture and implementation through deployment, monitoring, and continuous improvement—ensuring reliability, performance, and security for mission-critical healthcare workflows.

Responsibilities

Architecture and System Design

• Design and build large-scale, resilient, serverless systems using AWS Lambda, API Gateway, SQS, SNS, DynamoDB, Step Functions, EventBridge, and Kafka.
• Architect durable, fault-tolerant workflows for claims processing, episode generation, eligibility updates, communication engines, and other core healthcare processes.
• Create and evolve backend APIs for both B2C (member portal) and B2B (payer, employer, provider) integrations.

Engineering and Implementation

• Develop high-quality backend services in Python, following strict test-driven development (TDD) practices.
• Build clean, well-structured codebases emphasizing maintainability, testability, reliability, and scalability.
• Implement secure data flows and storage patterns aligned with HIPAA and healthcare compliance best practices.

Data and Healthcare Standards

• Work with structured and semi-structured healthcare data (for example, eligibility, claims, and clinical data).
• Partner with Analytics and Data Engineering to ensure data accuracy, consistency, and fidelity.

Operational Excellence

• Own systems end to end: development, testing, deployment, monitoring, and iteration.
• Build and maintain CI/CD pipelines, infrastructure-as-code, and observability dashboards.
• Continuously improve reliability through canaries, alarms, automated rollback, and well-designed SLOs.

Collaboration and Leadership

• Drive cross-functional architectural discussions and propose scalable, long-term solutions.
• Mentor and hire engineers, raising the bar for engineering culture, coding standards, and system design thinking.
• Work closely with product to refine requirements, define technical specs, and deliver high-value features.

Qualifications

• 7+ years of backend engineering experience, with a proven track record of shipping and operating production-grade systems.
• Expert-level proficiency in AWS serverless, including Lambda, DynamoDB, API Gateway, Step Functions, Kafka/SQS, and event-driven architectures.
• Strong Python engineering 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 that serve 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 a passion for delivering high-quality, reliable systems from design to production.
• Experience collaborating with SecOps, DevOps, and analytics teams, with comfort using GitHub Actions, IaC, and automated pipelines.
• Excellent verbal and written communication skills and cross-functional collaboration abilities.
• Bonus: Experience with healthcare EDI standards (837/834), payer systems, claims processing, HIPAA compliance, or health-tech domain work.