
At BigThinkCode, our technology solves complex problems. We are looking for a talented problem solver with middleware and backend development expertise to join our technology team at Chennai.
Must have skills:
- Any programming: nodeJS and typescript.
- Hands on experience using Middleware like e. g., Apache Kafka or RabbitMQ or Redis.
- Aware about Asynchronous and Loose Coupling.
- Familiar with API's gateway and microservice design patterns.
- Working on distributed systems - Nice to have.
- Event drive architecture (EDA) microservices project experience - Nice to have.
Below job description for your reference, if interested share your profile to connect and discuss.
Company: BigThinkCode Technologies
URL: https://www.bigthinkcode.com/
Role: Senor engineer (backend - nodeJS)
Experience required: 3-5 years
Work location: Chennai
Joining time: Immediate - 2 weeks
Work Mode: Work from office (Hybrid)
About the Role:
Scalable Systems & AI Integration - We are seeking a talented Senior Software Engineer to join our team and lead the development of high-performance, distributed systems. This role is ideal for an engineer who thrives in fast-paced environments, enjoys tackling complex data challenges, and is eager to bridge the gap between traditional microservices and modern Agentic AI workflows.
Key Responsibilities:
- Architect & Build: Design and implement highly scalable microservices capable of processing massive data volumes with low latency.
- Event-Driven Systems: Develop robust, asynchronous communication patterns using event-driven architecture to ensure system resilience and decoupling.
- AI Integration: Lead the integration of Large Language Models (LLMs) and Agentic AI workflows into existing enterprise applications to enhance automation and intelligence.
- Database Management: Optimize data storage and retrieval strategies; leverage MongoDB and explore/implement Graph Databases (e.g., Neo4j, Google Spanner) for complex relationship mapping.
- Deployment & Scaling: Containerize applications using Docker and manage deployments within Kubernetes (K8s) environments.
- Collaboration: Work closely with cross-functional teams to adapt to a rapidly evolving tech stack and translate business requirements into technical reality.
Core Requirements:
- Scalable Systems: Proven track record of building and maintaining production-grade systems handling high throughput and large datasets.
- Microservices: Good understanding of microservice design patterns, API gateways.
- Event-Driven Architecture: Strong experience with message brokers (e.g., Kafka, RabbitMQ, or Redis).
- Programming: While we are open to various backgrounds, the Node.js/MongoDB stack is our primary environment.
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.

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Job Summary:
We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.
Responsibilities:
- Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
- Contribute to the architectural decisions and system design discussions.
- Write clean, efficient, and testable code following best practices.
- Optimize application performance, scalability, and reliability.
- Integrate third-party APIs and work with external systems.
- Participate in code reviews, mentor junior developers, and support the team’s technical growth.
- Work closely with DevOps to support CI/CD pipelines and deployments.
- Troubleshoot and resolve complex issues in production and non-production environments.
- Keep up with industry trends and advocate for best practices in backend development.
Required Skills:
- 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
- Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
- Experience designing and consuming RESTful APIs and working with microservices architecture.
- Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
- Proficient with version control systems like Git and tools like Maven or Gradle.
- Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
- Experience with unit testing and integration testing (JUnit, Mockito, etc.).
- Good knowledge of software design principles, data structures, and algorithms.
- Excellent problem-solving skills and attention to detail.
Backend - Principal IC/Lead SDE
Minimum Requirements
- 8+ years development experience
- Solid Experience and knowledge of
- Coding and debugging using Object Oriented languages like Java, C++, Go or similar languages.
- Database design, Query optimizations, pitfalls (both SQL, NoSQL)
- Developing Scalable, distributed systems and patterns
- Developing REST and/or GraphQL based APIs
- Writing and driving Clean code in a team (via SOLID principles).
- Knowledge of writing unit tests
- NodeJS
Good to have
- Experience with GoLang/Python
- Experience with Microservices, designs and patterns
- Experience with Dockers/Kubernetes and orchestration
- Familiarity with Reactive programming and patterns like RxJs/RxJava, CQRS, Eventing systems
- Experience with automating DevOps lifecycle
- Proficiency with
Responsibilities
- Work with Product team and Drive design, development and deployment of the overall architecture and individual modules to support our Apps , website and internal tools
- Ensure the entire stack is designed and built for availability, speed, scalability, testability, debugging
- Design and development of our REST and GraphQL API
- implement and improve continuous integration and deployment
- Serve as a technical lead for the team
- Mentor team members
Role Overview
As a Senior Backend Engineer, you will be working closely with our core team in building products from scratch into large-scale platforms and solving business problems leveraging new and innovative technology. More than anything, we are looking for engineers that are eager to learn and build a meaningful company. We are a small team and encourage engineers to wear many hats
Responsibilities
- Design and build highly reliable and performant applications that deliver a great user experience.
- Own large technical deliverables and execute in a structured manner.
- Take the accountability of the overall health of the applications you build.
- Platformize components as libraries, utilities and promote reuse.
- Be able to conceptualize and develop prototypes quickly
Skills & Requirements
▪ Work Experience between 2 to 6 years in large scale applications with desire to work in fast paced startups
▪ Experience/Knowledge of Node.JS, Express .JS, AWS, MongoDB.
Deep understanding of your tools: Languages, frameworks, systems.
Role / Purpose - Lead Developer - API and Microservices
Must have a strong hands-on development track record building integration utilizing a variety of integration products, tools, protocols, technologies, and patterns.
- Must have an in-depth understanding of SOA/EAI/ESB concepts, SOA Governance, Event-Driven Architecture, message-based architectures, file sharing, and exchange platforms, data virtualization and caching strategies, J2EE design patterns, frameworks
- Should possess experience with at least one of middleware technologies (Application Servers, BPMS, BRMS, ESB & Message Brokers), Programming languages (e.g. Java/J2EE, JavaScript, COBOL, C), Operating Systems (e.g. Windows, Linux, MVS), and Databases (DB2, MySQL, No SQL Databases like MongoDB, Cassandra, Hadoop, etc.)
- Must have experience implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee and frameworks such as Spring Boot for Microservices
- Should have Advanced skills in implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee or similar frameworks such as Spring Boot for Microservices
- Appetite to manage large-scale projects and multiple tracks
- Experience and knowhow of the e-commerce domain and retail experience are preferred
- Good communication & people managerial skills
Requirements
Candidate should have at least 4-6 years of experience in enterprise web application
development using NodeJS on server side along with MongoDB and Express.
Knowledge of RESTful API is a must.
Experience with NodeJS based frameworks (example - NestJS) is highly preferred.
Experience with code optimization as well as has in depth understanding about
asynchronous programming.
Strong analytical skills and can come up with out of the box solutions.
Experience in end to end web development.
Experience with No SQL (Mongo preferred) databases with data migration Strategies
Strong knowledge in Object-Oriented Programming Concepts and Data Structures along with
Node JS best practices.
Experience in Unit Testing in NodeJS (Chai and Mocha) is a must.
Exposure to continuous deployment and integration process.
Exposure with Docker and Orchestration software.
Experience with Redis is added advantage.
Experience with RabbitMQ and Kafka is added advantage
Experience with Nginx and HA Proxy is added advantage
Experience in scalable microservices is must.
Deep in depth understanding about design pattern.
Period: 6 months+
JD:
● 4-7 years of experience building and scaling APIs and web applications.
● Experience building and managing large scale data/analytics systems.
● Have a strong grasp of CS fundamentals and excellent problem solving abilities. Have a good
understanding of software design principles and architectural best practices.
● Be passionate about writing code and have experience coding in multiple languages, including at least
one scripting language, preferably Python.
● Be able to argue convincingly why feature X of language Y rocks/sucks, or why a certain design decision
is right/wrong, and so on.
● Be a self-starter—someone who thrives in fast paced environments with minimal ‘management’.
● Have experience working with multiple storage and indexing technologies such as MySQL, Redis,
MongoDB, Cassandra, Elastic.
● Good knowledge (including internals) of messaging systems such as Kafka and RabbitMQ.
● Use the command line like a pro. Be proficient in Git and other essential software development tools.
● Working knowledge of large-scale computational models such as MapReduce and Spark is a bonus.
● Exposure to one or more centralized logging, monitoring, and instrumentation tools, such as Kibana,
Graylog, StatsD, Datadog etc.
● Working knowledge of building websites and apps. Good understanding of integration complexities and
dependencies.
● Working knowledge linux server administration as well as the AWS ecosystem is desirable.
● It's a huge bonus if you have some personal projects (including open source contributions) that you work
on during your spare time. Show off some of your projects you have hosted on GitHub.
AJAX and JS and their frameworks to create and integrate
functional web standard projects. Taking ready HTML/CSS files
from front end developers and executing the project based on the
logic and wireframes provided by designers
Solid knowledge of PHP, MySQL, JSON, and XML
● Proven experience building data-driven web
applications
● Experience working with API development
● Familiarity with design patterns such as MVC
● Experience with Open Source PHP CMS such as
WordPress or Drupal or Magento
● Comfortable with data modeling, stored
procedures, and views
● Ability to work closely with front end developers
● Knowledge of JavaScript / jQuery skills / HTML / CSS
● Experience building large, scalable applications
● Experience building custom
content management
systems
● Awareness of current development trends in the
coding and development like Docker, Micro
services and an understanding of how these
technologies can improve and impact projects
● Knowledge of GIT or any other version control
software.
Experience: 1 to 3 years
- Analyzing complex object-oriented programming structure
- MVC model
- Relational database
- Database join clause
- API integration
- Other requirements
- Passionate about effective programming
- Responsibility for major tasks and chores
- Good to have Javascript knowledge
- Willing to resolve technical debt in the early step
- Good understanding of sprint cycle in agile
- Can communicate with developers and non-developers
- Can work independently but a great collaborator
- Good to have an experience with Node and MySQL
- Serverless API experience is not counted
- Good to have Git workflow knowledge
- Good to have Github collaboration experience
Our client is a decade-old software development company, that offers its clients a wide range of customized web, mobile, and eCommerce tools and software. They are known to use advanced languages and platforms used to build reliable, secure, and scalable solutions for their business clients as well as individual customers. Their disruptive craftsmanship and strategy help in high-performance growth and allows customers to transform digitally and competitively.
Their products are being used by most of the banks and NBFCs in India, apart from clients from other industries. The founder is an IIM and MDI alumni and has experience of more than 13 years in business and strategic roles in MNCs. The company has been accredited by the government as a premier IT company, committed to quality and driven by customer success.
- Understanding and implementing security and data protection
- Managing both front-end and back-end web development requirements from a consumer.
- Taking full responsibility for task/ project execution
- Handling Payment Gateway integration and ecommerce development concepts
- Prioritizing own work and respect deadlines
What you need to have:
- Excellent skills in PHP Laravel
- Strong object-oriented programming skills
- General knowledge of both front-end and back-end web development from a consumer.
- Databases (more than one is desirable) MySQL, PostGRE, MongoDB
- Experience in Payment Gateway integration and ecommerce development concepts
- Should know about child theme and its structure.
- Proficient in CSS3/ HTML5
- Should know about source version control like git or svn etc.
- Familiar with AWS & Linux command line will be added advantage.
- Must be a team player with good communications
- Ability to solve problems quickly and efficiently
- Great aptitude and attitude towards learning
- Ability to prioritize own work and respect deadlines









