Senior Backend Engineer

Decca Consulting; Norwalk (CT); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Paid time off

Competitive salary

Job summary

Decca Consulting is seeking a Senior Backend Engineer to lead the design and implementation of high-scale, serverless backend services in AWS using Python. You will own systems end-to-end—from architecture to deployment—delivering secure, HIPAA-compliant data processing pipelines and APIs for healthcare workflows.

You will collaborate with analytics, product and operations teams to build reliable, scalable services, mentor engineers, and drive canaries, CI/CD, and observability to maintain

Qualifications

• 7+ years backend engineering with production-grade systems.
• Expert-level AWS serverless (Lambda, DynamoDB, API Gateway, Step Functions, Kafka/SQS) and event-driven design.
• Strong Python engineering fundamentals, including TDD and modular design.
• Experience with healthcare data and HIPAA-compliant data flows is a plus.

Responsibilities

• Design and build large-scale, serverless backend systems on AWS.
• Develop APIs for B2C and B2B healthcare integrations.
• Lead testing, deployment, monitoring, and ongoing improvements.
• Ensure HIPAA-compliant data handling and secure storage.
• Mentor engineers and drive cross-functional architectural discussions.

Skills

AWS serverless

Python

TDD

RESTful APIs

Distributed systems

Data modeling

Observability

HIPAA security

Mentoring/leadership

Tools

PostgreSQL

DynamoDB

RDS

Kafka/SQS

API Gateway

GitHub Actions

Terraform/IaC

Job description

Benefits

• Health insurance
• Paid time off
• Competitive salary

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.