Senior Java Developer

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 drop your profile to connect and disucss.

Company: BigThinkCode Technologies

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

Experience required: 2-3 years

Work location: Chennai

Joining time: Immediate – 2 weeks

Work Mode: Work from office / Hybrid

A skilled Node.js Developer with 2–3 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.

Must have skills:

• Hands on expertise in OOJS, node.js, distributed systems.
• Hands on experience using RabbitMQ, Kafka / Redis and PostgreSQL.
• 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.
• 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.

About the Role

We’re looking for an Elixir Developer who is passionate about building scalable, high performance backend systems. You’ll work closely with our engineering team to design, develop, and maintain reliable applications that power mission-critical systems.

Key Responsibilities

• Develop and maintain backend services using Elixir and Phoenix framework.

• Build scalable, fault-tolerant, and distributed systems.

• Integrate APIs, databases, and message queues for real-time applications.

• Optimize system performance and ensure low latency and high throughput.

• Collaborate with frontend, DevOps, and product teams to deliver seamless solutions.

• Write clean, maintainable, and testable code with proper documentation.

• Participate in code reviews, architectural discussions, and deployment automation.

Required Skills & Experience

• 2–4 years of hands-on experience in Elixir (or strong functional programming background).

• Experience with Phoenix, Ecto, and RESTful API development.

• Solid understanding of OTP (Open Telecom Platform) concepts like GenServer, Supervisors, etc.

• Proficiency in PostgreSQL, Redis, or similar databases.

• Familiarity with Docker, Kubernetes, or cloud platforms (AWS/GCP/Azure).

• Understanding of CI/CD pipelines, version control (Git), and agile development.

Good to Have

• Experience with microservices architecture or real-time data systems.

• Knowledge of GraphQL, LiveView, or PubSub.

• Exposure to performance profiling, observability, or monitoring tools.

Why Join Us?

• Work with a team that expects and delivers excellence.

• A culture where risk-taking is rewarded, and complacency is not.

• Limitless opportunities for growth—if you can handle the pace.

• A place where learning is currency, and outperformance is the only metric that matters.

• The opportunity to build systems that move markets, execute trades in microseconds, and redefine

fintech.

Responsibilities:

 Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.

 Collaborate with cross-functional teams including product managers, designers, and other developers to

understand requirements and translate them into technical solutions.

 Design and implement new features and functionalities in the ad-serving system, focusing on performance

optimization and reliability.

 Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure

uninterrupted service.

 Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality

and consistency across the platform.

 Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate

relevant innovations into our platform.

 Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.

 Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development

efforts for new projects and features.

 Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and

improvement within the development team.

 Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime

and reliability of the ad-serving platform.

Job Description:

1) Good experience in Java

2) Hands-on experience in Spring boot

3) Hands-on experience in Microservices

• Good experience in Javabackend/J2EE, Eclipse, Javascript, XML, Data Structures, Database 
• Should have good experience working in Springboot.
• Good experience in JSON / RESTful API / Web Services.
• Experience with Design Patterns.
• Experience in AWS and Queuing systems is an advantage
• Basic estimation experience
• Self starter and quick learner
• Should be able to work in a growing environment that is very dynamic and challenging
• Good oral and written communication skills
• Highly self motivated and directed
• Ability to work without a lot of supervision
• Experience in working in a team-oriented and collaborative environment.

• Work with business analysts to estimate and design effective, scalable and maintainable solutions that meet business initiatives and objectives
• Develop and unit test software that meets business requirements and technical design
• Troubleshoot pre- and post-production implementations
• Propose new ideas when there is strong business value and stay up to date on the latest technology trends and techniques

Critical Skills & Experiences:

• At least 5+ years of experience developing in Java technologies with equivalent experience in systems analysis, OO design, OO programming and debugging skills
• At least 5 years of experience in Java Spring Boot Framework development
• 2 years of experience in any Cloud platform, preferably AWS.
• At least 3 years of web services and relational database experience (preferably Mysql)
• At least a year of Elastic search experience
• Experience developing RESTful web services (preferably micro services)
• Experience with UNIX/Linux command line and shell scripting
• Experience working in cross-functional Agile/Scrum teams
• Any level of experience with JIRA or any other issue tracking technology
• Experience working directly with business stakeholders
• Experience with Java application profiling and profiling tools
• Exceptional written and verbal communication skills.
• Drive performance to accomplish team goals in a fast-paced environment
• Bachelor’s degree or the above equivalent skills and years of experience

Keywords:

Experience: +5 Years

Technical skills: Java, Spring boot and Node JS  

• Expertise in Database Administration on Production Servers with server configuration, performance tuning, and maintenance with outstanding troubleshooting capabilities in Cloud – AWS / Azure.
• Efficient in Architecting, Configuring, Maintaining, Monitoring, Troubleshooting SQL Servers.
• Strong understanding of SQL database structures, principles, and practice
• Strong experience handling Backups, Restores, Corruption, and Disaster Recovery scenarios.
• Experience in installing and configuring SQL Server databases of different versions.
• Experience in Performance Tuning and Optimization, backups, restores, recovery models. Writing & optimizing SQL statements, partitioning, clustering, HA, DR. Experience in DMV & DDL queries.
• Independently analyze, solve, and correct issues in real-time, providing problem resolution end-to-end.
• Skilled in working with large volumes of data and loading data from multiple sources.
• Knowledge of reporting and query tools and practices.
• Knowledge of indexes, index management, and statistics.
• Skilled in deploying database change scripts
• Scheduling database backups, taking full and Transaction log backups.
• Automate SQL server tasks (SQL jobs, Windows scripts, etc.)
• Exposure to MySQL will be an added advantage.

Soft skills:

• Mission led. Someone who buys into the mission of a company and the problem they are solving. The company is growing fast and have a tonne of things they need to achieve; they want people that are bought in for the long term and believe in what they’re doing. 
• Pragmatic thinker. You have a structured approach to situations, if you do not know the answer, you’ll know how to find it out. 
• Open to change. You are able to work in a fast-paced environment where priorities can change instantly, and you are able to adjust. 
• Technologist. Someone that is passionate about what they do and experienced in server operating systems and application deployment, configuration, and maintenance. 
• Communication and Presentations skills.

The opportunity

The Engineering Manager (EM)is responsible for a managing a team of full stack engineers that is building highly innovative and cutting edge solutions. This role is accountable for leading a team, developing code, deploying and managing in production. Most importantly, the EM, while working with the Product owners drives the product Net promoter score (NPS), user satisfaction, building the product roadmap and delivering highly functional, exceptionally innovative and intelligent software. You will be called upon to be the technical representative for your team during cross-team collaborative efforts and planning. Success in this role will require strong and innovative approaches to problem solving, great technical leadership, excellent communication (written and verbal, formal and informal), flexibility, accountability and a self-motivated working style with attention to detail.

You are great at

As an Engineering Manager, you’ll take the lead as you - drive product development, operations and technical decision making. You’ll have a strong focus on team management and development, equal focus will be on writing production code and hands on active development of the capabilities and solutions. Assist in defining infrastructure need and use enterprise solution and drive resolution of technology roadblocks including code, infrastructure, build and deployment. Manage overall software development cycle by adhering to development and security standards. Establish good stakeholder communication and work closely with Product teams and influence set product roadmap and help drive requirements while being a strong advocate of extreme agile and DevOps practices across engineers. Build and manage a team of high performing full stack engineers and provide leadership, coaching, motivation and recommend staffing levels, operating procedures, tools and systems for the team. Provide career development and performance management to a team of engineers.

Required Candidate Profile

• 4 year degree in or equivalent experience
• 8+ years of engineering (software development) experience
• 1-3 years of managing teams with a strong track record of delivery for cross-functional product experience with Cloud hosting and managing products
• Proficient in building high performing APIs and writing specs
• Expertise in programming languages. Hands on experience in Java, J2ee technologies is preferred.
• Experience in SAP Hybris Commerce would be a plus
• Experience with integration, data handling technologies and other open source frameworks
• Strong written and verbal communication skills with the ability to present complex technical information in a clear and concise manner to variety of audiences
• Team-orientated, passionate about developing others’ skills and capabilities
• Successful track record of working in large scale technology solutions
• Deep understanding of agile development processes and methodology including continuous integration and delivery, with a mindset of building incrementally and delivering business value quickly