Java Developer - AWS Expertise

Tech ECS Limited; Kolkata District; On-site; INR 1,400,000 - 2,800,000; Full time

Job summary

Tech ECS Limited is seeking a highly skilled Senior Java Developer to design, implement and support payment-focused, high-volume, low-latency systems in a global context. You will collaborate with cross-functional teams to deliver robust, scalable solutions capable of handling thousands of transactions per second.

The role requires strong debugging skills, experience with Java 11+, Spring Boot, Rest APIs and AWS (DynamoDB, Lambda).

Qualifications

• BE/B.Tech required.
• Design, implement, and integrate scalable solutions.
• Collaborate with QA, Product Managers, Engineering Managers, and peer teams.
• Support live services and products.
• Perform peer reviews and mentor juniors.
• Maintain high-quality code standards.
• Identify and implement functional/technical improvements for new or existing services.

Responsibilities

• Design, implement, and integrate scalable solutions.
• Collaborate with QA, Product Managers, Engineering Managers, and peer teams.
• Support live services and products.
• Perform peer reviews and provide mentorship to junior team members.
• Maintain high-quality code standards.
• Identify and implement improvements for new or existing services.

Skills

Strong debugging

High-volume systems

REST API design

Education

BE/B.Tech

Tools

Java 11+

Spring Boot

REST API

AWS (DynamoDB, Lambda)

Jenkins

Caching technologies

Job description

Job Summary

We are seeking a highly skilled Senior Java Developer, focusing on payment functionalities worldwide. This role involves designing, implementing, and supporting high-volume, high-availability, low-latency systems, with an average of 3000 Transactions Per Second (TPS). As part of a collaborative and dynamic environment, you will work closely with cross-functional teams to deliver robust and scalable solutions.

Must-Have Skills (Mandatory)

• Programming: Java (version 11+), Spring Boot
• API: Rest API
• Cloud Services: AWS (DynamoDB, Lambda)
• Debugging: Strong debugging and problem-solving skills

Good-to-Have Skills (Optional)

• Experience with high-volume systems
• Knowledge of AWS services (UKS, SQS)
• Familiarity with Jenkins and caching technologies
• Exposure to peer code reviews and mentoring

Qualification & Description

• Education: BE/B.Tech only
• Responsibilities:
• Design, implement, and integrate scalable solutions.
• Collaborate with QA, Product Managers, Engineering Managers, and peer teams.
• Support live services and products.
• Perform peer reviews and provide mentorship to junior team members.
• Maintain high-quality code standards.
• Identify and implement functional/technical improvements for new or existing services.