Lead Engineer

At BigThinkCode, our technology solves complex problems. We are looking for talented back-end (node.JS) engineer to join our at Chennai.

Please find below our job description, if interested apply / reply sharing your profile to connect and discuss.

Company: BigThinkCode Technologies

URL: https://www.bigthinkcode.com/

Experience required: 3-4 years

Work location: Chennai

Joining time: Immediate – 4 weeks

Work Mode: Work from office / Hybrid

Must have skills:

·      Hands on expertise in OOJS, node.js, distributed systems.

·      Event drive architecture (EDA) microservices project experience MUST

·      Any programming: Typescript or nodeJS or Golang

·      Hands on experience using docket containers and Kubernetes.

·      Aware about Asynchronous and Loose Coupling.

·      Familiar with API’s gateway and microservice design patterns.

A skilled Node.js Developer with 5+ years of experience in building scalable applications using event-driven architecture within distributed systems. The ideal candidate should be comfortable in high-performance backend services and have a strong understanding of asynchronous programming patterns.

Experience or exposure to knowledge embedding and vectorization techniques is a strong plus, especially in the context of modern data-driven or AI-powered systems.

Required Skills

·      5+ years of hands-on experience with Node.js

·      Strong understanding of event-driven architecture and non-blocking I/O

·      Experience working with distributed systems and microservices architecture

·      Proficiency in RESTful API design and implementation

·      Experience with databases such as MongoDB, PostgreSQL, or MySQL

·      Experience with containerization tools like Docker and orchestration tools like Kubernetes

Key Responsibilities

·      Design, develop, and maintain server-side applications using Node.js

·      Build and optimize scalable, event-driven systems in distributed environments

·      Implement asynchronous workflows, message queues, and pub/sub architectures

·      Collaborate with cross-functional teams to define and deliver backend solutions

Good to Have 

·      Experience with knowledge embedding and vectorization techniques

·      Familiarity with vector databases (e.g., Pinecone, Weaviate, FAISS)

·      Understanding of cloud platforms (AWS, Azure, or GCP)

Why Join Us:

·      Collaborative work environment.

·      Exposure to modern tools and scalable application architectures.

·      Medical cover for employee and eligible dependents.

·      Tax beneficial salary structure.

·      Comprehensive leave policy

·      Competency development training programs.

🚀 We’re Hiring: Senior Software Engineer – Backend | Remote | Full-time

Are you a backend engineering expert who thrives in high-growth startup environments?

Do you enjoy solving complex challenges with the latest technologies like Java 18+, Spring Boot 3+, and scalable microservices?

We’re looking for a Senior Software Engineer – Backend to help us build a world-class data science platform that powers cutting-edge AI solutions.

What You’ll Do:

🔹 Build and optimize scalable, secure backend systems

🔹 Collaborate with product owners & architects to shape business solutions

🔹 Deliver high-quality, production-ready code with best practices (unit testing, CI/CD, automation)

🔹 Work with modern tools like Kubernetes, Docker, NodeJS, React

🔹 Contribute to a high-performance engineering culture and drive innovation

What We’re Looking For:

✔️ 6+ years of experience with Java/Python, Spring Boot, REST APIs, microservices

✔️ Strong CS fundamentals, algorithms, and system design skills

✔️ Experience in secure web applications & scalable backend architectures

✔️ Knowledge of cloud (AWS/GCP/Azure), GitHub Actions, and Unix scripting

✔️ Startup mindset – fast learner, problem solver, impact-driven

🌍 Remote | High-growth environment | Global impact

Skills Required:

- 4+ years of technical experience in a developer role

- Strong proficiency with Core Java

- Database experience preferably with DB2, Sybase, or Oracle

- Complete SDLC process and Agile Methodology (Scrum)

- Strong oral and written communication skills

- Excellent interpersonal skills and professional approach

- Bachelor’s degree in Computer Science, MIS, or other technology/engineering discipline

Skill Desired:

-Strong proficiency with Scala on Spark

- Previous experience in front office and back office reports

- Strong understanding Order Life Cycle management from Equities or Listed derivatives perspective

- Previous experience in Trade Surveillance or working with data from the order lifecycle

- Good to have knowledge on Hadoop Technologies

- High quality software architecture and design methodologies and patterns

- Work experience as level-3 support for applications

- Layered Architecture, Component based Architecture

- XML-based technologies

- Unix OS, Scripting, Python or Perl

- Experience in development on other application types (Web applications, batch, or streaming)

We are looking for a Senior Java Developer with 6+ years of experience to join our team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and Cloud Technologies. You will play a key role in designing, developing, and optimizing scalable applications while mentoring junior developers and ensuring best coding practices.

Key Responsibilities:

• Design, develop, and maintain Java-based enterprise applications.
• Implement and optimize Microservices Architecture using Spring Boot.
• Develop, test, and deploy RESTful APIs and Web Services.
• Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
• Ensure application scalability, security, and performance.
• Collaborate with DevOps teams for CI/CD pipeline integration.
• Work with Cloud platforms (AWS, Azure, or GCP) for cloud-native development.
• Implement best practices for coding, testing, and deployment.
• Lead code reviews, mentor junior developers, and contribute to architectural decisions.
• Troubleshoot production issues and provide effective solutions.

Required Skills & Experience:

• 6+ years of hands-on experience in Java development.
• Strong expertise in Spring Boot, Spring MVC, and Spring Security.
• Experience with Microservices Architecture and containerization tools like Docker/Kubernetes.
• Proficiency in SQL & NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
• Hands-on experience with RESTful APIs, messaging systems (Kafka, RabbitMQ), and authentication mechanisms (OAuth, JWT, SAML).
• Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
• Experience in Agile/Scrum development methodologies.
• Strong knowledge of multi-threading, concurrency, and design patterns.

Job Description

1. 5- 8 yrs IT industry experience preferably Banking domain
2. Strong Python Skills and good understanding of Java and Microservices
3. Should have handled banking customers and exposure to Production support processes
4. Good in database and Pl/SQL – Ability to write SQL as and when needed  
5. Good attitude and communication
6. WFH not allowed – Working from Bank premises as per bank calendar in Saifabad or Hitech City – Saifabad Flexibility must

Job Description: Core Java Developer

Company: Mobile Programming LLC

Location: Pune (Remote work available)

Salary: Up to 16 LPA

Position: Core Java Developer

Responsibilities:

• Design, develop, and maintain Java-based applications using Core Java and Spring Boot frameworks.
• Collaborate with cross-functional teams to deliver high-quality software solutions.
• Conduct code reviews and troubleshoot/debug complex issues.
• Optimize application performance and stay updated with industry trends.

Requirements:

• Minimum 6 years of hands-on Core Java development experience.
• Strong proficiency in Spring Boot framework.
• Solid understanding of OOP principles, web development (HTML/CSS/JavaScript), RESTful web services, and SQL.
• Experience with Git and problem-solving skills.
• Excellent communication skills and ability to work independently and as part of a team.
• Bachelor's or Master's degree in Computer Science or a related field.

Note: Immediate joiners required. Please include your resume and relevant code samples/projects when applying.

•  4+ years JAVA/J2EE experience Spring Services, Spring Security and Rest Api's
• Spring Framework: Core Spring / Spring Boot / Spring MVC ,Rest Service 
•  JPA/Hibernate, JSON parsing
• Build Tool : Maven
• Apache tomcat
• Database : Any RDMS (preferably Mysql)
•  SCM: Git / Bitbucket
•  Java 8 Generics, SOLID Design Principle
•  Strong experience on Collections Framework and Threading
• Collections: Hashmaps, Concurrent Hashmaps, Treemap, Thread pool
•  SSO, PAS, JPA/Hibernate, API Integration Build, MATLAB Integration with Java, Json Conversion.
• Location : PAN India(Preferred Bangalore)
• Early joiners preferred.

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.

Position: Senior Java Developer / Tech Lead

Work Location: Bangalore; India

Type of Employment: Full-time, Permanent

Experience: 6 to 10 years of Experience

• Proficient in Java/J2EE , core java, full stack development experience ( Database to UX)
• Must be proficient with integration with third-party applications within the enterprise and outside the organizations (API)
• Must be good in writing highly optimized code.
• Must be good at abstracting solutions - reduce time and cost to build
• Experience with Workflow Engines like Activiti will be an advantage
• Good understanding of native Android code/interface with Android apps, if preferable
• Must be an expert in managing data at the application database level - Transaction and Reporting database design
• Must be good in coding & product development
• Experienced with monitoring and observability
• Experienced with production support and debugging (heap dumps, thread dumps etc)
• Experience in Logistics domain is desirable
• Prior startup experience is preferred

Requirements:

• Bachelor’s or equivalent degree in Computer Science / BE
• Ability to handle the team of 7 to 8 members and giving guidance to the team
• Strong problem-solving skills
• Ability to respect deadlines and will to perform in an accelerated learning environment.

Key Skills: Java, J2EE, JSP, Spring, Angular, Apache, MySQL, SQL Queries,LinuxEnviroment, HTML, JQuery, Java Script, Version Control, .Net, Activiti, IBatis, Maven – Build, Git Hub, J Bos, CSS, HTML 5, JIRA, Selenium,AWS – Server Handling, Android, React JS

Note: Hiring from logistics and Ecommerce company only and 30-45 days’ notice is ok and can also buy back notice if required.