Technical Lead

Overview

The Technical Lead is primarily responsible for the implementation of scalable, resilient back-end data services for mission critical applications. You will design the conceptual, logical, and physical data model, data flow, and implement. You will be expected to implement backend services for the data stores and related APIs; the applications are used by external and internal customers. You will store data using a variety of technologies including AWS DynamoDB, AWS RDS, and AWS HealthLake (FHIR). You will implement the APIs using cloud-native AWS services including AWS API Gateway, Lambda (node.js JavaScript and NestJS), AWS Elastic Map Reduce. You will integrate with other AWS services such as EventBridge, Kinesis, SQS, OpenSearch, SNS, and S3. You will instrument your services using AWS CloudWatch, AWS X-Ray, and AWS CloudTrail. You will collaborate with team leads, other senior developers, offshore development team members, architects, business owners, project management, and other internal stakeholders. You will automate deployments by working closely with DevOps engineers. Other responsibilities include bug fixes, support onboarding of new clients, and support production support operations.

Responsibilities

• Implement complex, scalable back-end data services using NodeJS and NestJS framework implemented using API Gateway, Step Functions, Lambda functions.
• Implement API data access layer using NestJS ORM libraries; integrate with cloud-native data persistence services (DynamoDB, RDS, s3, HealthLake, etc.)
• Implement and integrate with other AWS Services such as Kinesis, SQS, SNS, Event Bridge, S3, Elastic Map Reduce (EMR), OpenSearch, CloudWatch, and X-Ray.
• Collaborate with DevOps engineers to deploy services on AWS using Terraform/Terraform Cloud and the standard Cotiviti CI/CD pipeline tools (Bamboo/Octopus).
• Support the technical design of RESTful APIs that use JSON payloads.
• Collaborate with software engineering teammates. Participate in technical peer reviews. Collaborate with architects to continuously evolve technical architecture.
• Implement services that meet functional and non-functional requirements.
• Collaborate with Product owner(s) and other team members to develop software using Agile methodologies (SAFe, Scrum, Kanban). Contribute to all phases of the development lifecycle.
• Implement net-new, cloud-native services that can operate efficiently/cost-effectively/sustainably.
• Support production operations teams to quickly triage and resolve issues.
• Join client calls as needed to provide support and answer any technical questions.
• Continuously learn new skills to support Cotiviti’s current and future needs.
• Delight customers (internal and external) through a focus on delivery excellence and continuous improvement.
  
  

Qualifications

• 6 or more years of demonstrable success building designing and building RESTful services that leverage AWS Lambda, OOP, and Functional programming. Preferred with experience with node.js and nestjs framework on AWS Lambda. Experience with Python helpful for prototyping.
• Must be able to create conceptual, logical, and physical data models, articulate how they align to the business domain, and are optimized for the relevant access patterns. Must be able to communicate designs using common industry notations/syntaxes like UML, ER and data flows, JSON schema, Swagger, etc.
• Know when data should be stored in SQL vs No SQL; how to best partition/index data for searches vs lookups, etc. Must have experience with DynamoDB and RDS.
• Must have experience with the NestJS framework.
• Preferred to have familiarity with the FHIR standard’s core use and concepts. Ideally have experience with AWS HealthLake or other FHIR-based clinical data repository.
• Familiar with implementation approaches for multi-tenant APIs on AWS—for example: how do you enforce access control to ensure tenant isolation? How data can/should be partitioned/segmented/indexed to balance cost, complexity, and performance?
• Have an engineering mindset—looking for ways to continuously improve speed to market by eliminating waste, improving quality, automating routine tasks, reusing code/libraries/capabilities.
• Experience implementing and integrating with restful APIs, microservices, and event-driven apps.
• Experienced implementing database DML queries for RDBMS, DML queries for NoSQL DB, ORM, SQL Workbench.
• Experienced constructing unit tests, conducting end-to-end integration testing, performance test (lambda-tester, selenium or similar).
• Experience with AWS CloudWatch and X-Ray required. Familiarity with other Observability or APM metrics and monitoring tools.
• Proficient with using CI/CD, source code management, architecture design tools. Experience with Terraform/Terraform Cloud and git required.
• Strong proficiencies in data structures, algorithms, and design patterns.
• Experienced with resiliency and scalability design patterns for AWS Cloud services.
• Strong command of Agile software development practices (familiar with SAFe preferred).