Senior Java Developer ( Tech lead)

Job Title : Node.js Developer

Location : Gurgaon

Working Days : 5 Days

Experience : 3+ Years

Key Skills : Node.js, JavaScript, RESTful APIs, MongoDB, Express.js

Responsibilities :

• Design, develop, and maintain scalable Node.js applications.
• Implement APIs to integrate with front-end applications and third-party services.
• Optimize applications for maximum speed and scalability.
• Collaborate with cross-functional teams to deliver high-quality solutions.
• Ensure code quality and application reliability through testing and debugging.

Requirements :

• Strong proficiency in JavaScript and Node.js.
• Experience with frameworks like Express.js.
• Knowledge of databases such as MongoDB or MySQL.
• Familiarity with Agile methodologies and version control systems (e.g., Git).
• Excellent problem-solving skills and attention to detail.

Benefits :

• 5-day workweek for a healthy work-life balance.
• Competitive salary and opportunities for growth.

About Uni

Uni is on a mission to make credit simple, transparent, and truly rewarding.

We’re building the most meaningful rewards card in India - one that puts

customer benefit at the center of every decision.

What You’ll Do

• Design and build scalable, high-performance components from product requirements.
• Write clean, modular, and extensible code with the right data structures and tech stack.
• Contribute to both low-level and high-level design discussions.
• Mentor junior developers and collaborate with cross-functional teams.
• Work in an agile, CI/CD-driven environment.

What You’ll Need

• B.Tech/M.Tech (or equivalent) with 3–5 years of development experience.
• Strong programming skills in Java (or similar languages).
• Expertise in OOP, multi-threading, and concurrency.
• Experience working with complex systems and large data volumes.
• Prior experience in scalable web application development is a plus.

Why Uni Cards

• Collaborative, idea-driven work culture.
• Strong engineering team where every opinion counts.
• Flexible hours, learning opportunities, and a merit-based growth path.

Job Responsibilities: -

• Work on building enterprise grade applications with a strong knowledge of the .net core framework. Experience with Node JS.
• Create Libraries that would be shared across the different modules in the system that can be leveraged by multiple teams within the organization.
• Good understanding of data structures to identify the correct data structure for a specific use case.
• Build RESTful API for customer consumption. Prior knowledge building APIs is a requirement. Understanding of HTTP error codes is a must.
• Work on code in a distributed code development environment. Prior use of Git/Github is desirable.
• Work with a Unit Test platform.
• Strong knowledge on Encryption standards – Asymmetric and Symmetric.
• Create and Manage System Documentations.

Job Qualifications

• At least 4+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api) – For .Net Developer
• At least 7+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api). – For Lead.
• Experience handling ISO8583 message standard; Payments Industry knowledge.
• Good understanding of version control (using Git/Github).
• Experience with Unit Test framework; TDD Approach.
• Knowledge and understanding of PCI Requirements for Card processing software .
• Understanding of SQL Database and Database Design.
• Strong understating of hybrid cloud application basics based on Docker, Kubernetes, Microservices and Postgres.
• Minimal 2+ years of experience in building enterprise scale applications: coding, designing, developing, and analyzing data. 
• Agile environment. AWS, Docker, Kubernetes, DevOps environment Lead levels only.
• Manage CI/CD Pipeline.
• E/B.Tech/B.Sc/MCA/Msc in Computer Science.

Company Overview

http://www.corecard.com">www.corecard.com & http://www.corecardindia.com">www.corecardindia.com

Core Card Software is a product company, to provide financial service organizations with the best card management applications to help them compete both locally and globally. Core Card Software, a leading provider of card management systems. The Core Card software solution provides the market's most feature-rich platform for processing and managing accounts receivables and a full range of card products including prepaid/stored-value, fleet, credit, debit, commercial, government, healthcare and private-label cards. Core Card have offices based in Atlanta, Bhopal & Navi Mumbai.

Role/ Responsibilities

• Design APIs, DB, Queues, monitoring for micro services. 
• Writing, deploying and managing micro services. 
• Migrate existing components into distributed micro service architecture. 
• AWS Cloud / Google Cloud Platform (Manage Infrastructure). 
• API integration with 3rd parties. 
• Unit test cases, automation. 
• Database optimisation. 
• Design of highly concurrent backend architecture. 
• Handling high traffic data. 

Experience required: 

• Sound fundamentails in software design. 
• Must have worked on distributed and micro service architecture. 
• Sound fundamentals on scale/ performance/ memory optimisation. 
• Sound fundamentals of authentication, authorization, payment processes, data security. 
• Must have experience in Spring / Spring boot. 
• Good to have experience in Kafka / JMS / RabbitMQ / AWS Elastic queue. 
• Good to have experience in Junit / mockito unit test cases. 
• Good to have knowledge in Mysql (or any RDBMS). 

Looking for a Java Technical Architect/ Java architect with experience between 10 to 14 years.

Candidate must have experience  in Java technologies along with SpringBoot and Microservices.
Must have experience in Cloud Technology - AWS.
Must have experience in Angular 4 or above version.

Note: 1. Candidate must be ready to work in night shift.
          2. Looking only for Tamilnadu based candidates.

This is regarding .Net Core Developer/Lead opportunity we have with us and we are looking for immediate joiner.

Please find below the job description for your reference:

Required Skills:

• Good understanding of SOLID principles or Object oriented programming concepts
• Working knowledge of design patterns
• ASP.Net Core MVC & Razor
• REST API
• SQL
• Unit testing

Nice to have:

• RabbitMQ or experience working with any message oriented systems
• HTML, Javascript & CSS
• C#7 and above
• Docker
• SSRS
• Quartz or Hangfire

FYI. There will be a small coding ‘test’ during the interview