Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Jennings Mc Enroe Selvaraj

Nottingham

Summary

Full Stack Developer with 7+ years in IT, specializing in Java Spring Boot, AWS Cloud, and Full Stack Development with a focus on ME(R/A)N Stack. Extensive experience with high-impact projects, including cloud migration, microservices architecture, and AI-driven applications. Known for a proactive approach in collaborative settings and a strong track record with clients such as CapitalOne UK, HM Courts & Tribunals Service, and Cambridge University.

Overview

7
7
years of professional experience
1
1
Certification

Work History

Backend Developer

CapitalOne UK
01.2022 - Current
  • Led cloud migration from on-premise SOA to AWS, implementing SQS, EventBridge, AWS Lambda and Step Functions with CloudFormation to support real-time credit decisioning, boosting service scalability and speed.
  • Mentored junior engineers and recent graduates in cloud technologies, improving team capability and reducing onboarding time.
  • Designed and decommissioned legacy servers, integrating seamlessly with third-party cloud services to support Capital One’s decisions platform.
  • Collaborated with product owners to define functional and non-functional requirements; developed performance and monitoring dashboards using NewRelic and Logzio, optimizing issue detection and troubleshooting by 30%.

Backend Developer

Cognizant - HMCTS
08.2021 - 01.2022
  • Developed a Refunds Microservice with Terraform scripts, Jenkins, and Java 8 to support a scalable, secure refunds process for the HMCTS.
  • Performed data migration for Postgres databases, automating tasks through SQL scripts, reducing manual effort by 40%.
  • Addressed and resolved application vulnerabilities using WhiteSource, enhancing system security and compliance.

Full Stack Developer

Cognizant
11.2019 - 08.2020

• Developed a Login page using ReactJS integrated with AWS Cognito and notification messages with AWS SQS for the Booking Service RFP Prototype.

• Contributed to Event Storming sessions with Business Analysts to design Domain Driven Microservices.

• Drafted Booking Microservice with Spring Boot based on Domain Driven Design. Dockerized and stored images in AWS ECR, deployed in AWS ECS, and utilized AWS API Gateway, Lambda, SQS, and SNS.

• Integrated Zipkin for tracing service to identify microservices communication latency and performance issues.

• Implemented Common Socket Library for Asynchronous communication using AWS API Gateway websocket and ReactJS Context API.

Full Stack Developer

Cognizant
11.2017 - 10.2019

These projects demonstrate a track record of successful execution and collaboration across diverse technological landscapes, highlighting a commitment to innovation and excellence.

  • Developed a comprehensive dashboard for a retail client using ReactJS and ChartJS, visualizing data and improving client reporting efficiency.
  • Created an Alexa skill using NodeJS for Alaska Airlines, providing flight and terminal information, and deployed it on AWS Lambda.
  • Engineered deep learning models for Google Cloud, assessing fruit freshness for a food client, which reduced spoilage-related losses by 20%.

Education

B.E - Computer Science Engineering

St Joseph's College of Engineering
04.2017

Skills

  • Programming Languages: Java, Python, GoLang, JavaScript (ReactJS, NodeJS)
  • Frameworks & Tools: Spring Boot, Flask, Terraform, Docker, Kubernetes
  • Cloud & DevOps: AWS (Lambda, S3, Step Functions), CI/CD, Jenkins, New Relic, Logzio
  • Front-end Technologies: ReactJS, HTML5, CSS3
  • Database Technologies: PostgreSQL, MongoDB

Certification

  • AWS Solutions Architect AssociateIssued April 2021
  • Cognizant S1 Full Stack Engineer CertificationIssued July 2019
  • Deep Learning Specialization (Coursera)Issued January 2018

Timeline

Backend Developer

CapitalOne UK
01.2022 - Current

Backend Developer

Cognizant - HMCTS
08.2021 - 01.2022

Full Stack Developer

Cognizant
11.2019 - 08.2020

Full Stack Developer

Cognizant
11.2017 - 10.2019

B.E - Computer Science Engineering

St Joseph's College of Engineering
Jennings Mc Enroe Selvaraj