



About W3Global
About
Connect with the team
Similar jobs
Job Title: Lead Java Developer
Experience Required: 7+ Years
Location: Mumbai
About the Role
We are seeking a highly skilled Senior Backend Developer with deep expertise in building scalable, high-performance applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, Microservices, and distributed systems. You will play a key role in designing and optimizing APIs, architecting robust systems, and collaborating with cross-functional teams to deliver innovative solutions.
Key Responsibilities
- Design, develop, and maintain scalable backend systems using Java, Spring Boot, and Microservices architecture.
- Build and optimize APIs for large-scale applications ensuring high performance and reliability.
- Apply clean coding principles, SOLID design patterns, and clean architecture to deliver maintainable and robust code.
- Work with distributed systems technologies (Kafka, ELK, in-memory databases, Cassandra, or similar).
- Write efficient SQL queries and integrate with relational and NoSQL databases.
- Collaborate with product managers, architects, and other developers to define and align on technical decisions.
- Identify and solve complex problems with innovative and scalable solutions.
- Drive best practices in coding standards, system design, and performance optimization.
- Communicate complex technical concepts clearly across teams and stakeholders.
Skills & Qualifications
- 7+ years of experience as a Backend Developer.
- Strong expertise in Java, Spring Boot, Microservices, SQL.
- Significant experience in API design and optimization for enterprise-scale applications.
- Proficiency in distributed systems & related technologies (Kafka, ELK, in-memory DBs, Cassandra, etc.).
- Strong understanding of object-oriented engineering principles (SOLID, clean architecture).
- Excellent problem-solving and analytical skills with the ability to simplify complex concepts.
- Strong communication and collaboration skills, with the ability to influence and align teams.
Responsibilities-
- Writing back-end code & front –end code and building efficient Java modules
- Contribute in all phases of the development lifecycle, Write well designed, testable, Design, build, and maintain efficient, reusable, and reliable Java code code
- Help maintain code quality, organization, and automatization
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
- Translate application storyboards and use cases into functional applications
- Ensure the best possible performance, quality, and responsiveness of the applications
- Identify bottlenecks and bugs, and devise solutions to these problems
- Align with organizational security protocols and data protection requirements and
- Implement the required feature
- Participate in all phases of the SDLC
Skills and Experience-
- BS/MS Degree in Computer Science, Engineering or a related subject
- Hands-on experience in designing and developing applications using Java EE platforms
- Object-oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Class loading, Memory Management, Transaction management, etc.)
- excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Hands-on experience in designing and developing applications using JavaScript, j Query, and AJAX.
- Ensure that the APIs and services are adequate to support the application
- Profound insight of Java and JEE internals (Class loading, Memory Management, Transaction management etc.)
- Excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate)
- Experience with test-driven development
- excellent written and verbal communication skills Ability to quickly adapt and learn new technologies.
- Collaborate with other parts of the technology team, including product, QA, etc. to deliver a solid product.


Salary: No bar for right candidate
React JS
Node JS
Graphql
Required background:
Ideal candidate is full stack with a focus on the backend
Can work with React.JS and is comfortable with CSS
Strong Node.JS with working experience in Graphql
Worked on scaling issues and real-time distributed systems
Has experience building microservices.
Has work experience with web sockets, WebRTC and RTMP / HLS.
5.5+ years of experience after college
Ideally has past experience with Java or GoLang.


Job description
Copperchips is hiring full-stack spring boot developers with hands-on experience in the underneath
- Spring Boot
- AngularJs
- Spring Data jpa
- Hibernate
- SQL
- Postgres
- Rest API
Additionally, knowledge on the underneath technologies will be a plus
- Experience in Angular.Js is a big plus
- Cloud Environments preferably AWS. GCP / Azure would also work
- Knowledge of GIT/Bitbucket, and other version management tools is a must
- Queueing frameworks, Webhooks and Event Driven Development
- CI/CD implementation using Jenkins / bamboo
- You will be responsible for
- Designing/architecting application features/modules
- Develop, build, test, and deploy software product features by adopting industry best practices
- Preparing technical documentation. Translating BRDs into FRD's. Decomposing requirements into logical work breakdown structure
- Pro-actively propose solutions and strategies to business challenges
Skills for Success
- A quick learner with good written and oral communication skills
- Should be able to take new initiatives and ownership of tasks
- Must have the ability to work independently with little to no supervision
- Must be flexible to work in a multi-shift environment
- Candidate should be willing to travel onsite for short/long-term assignments
Strong foundation and knowledge of frontend web technologies: HTML/CSS/Javascript
AngularJS/Angular/ReactJS/VueJS frameworks and libraries for the frontend
Experienced using NodeJS platform and techniques for handling asynchronous calls (Promise, Observables).
Real time experience working on any cloud tech(AWS)
Experience with Laravel is most welcomed .
Experience/Knowledge of page optimization for reducing load time and SEO
Experience/knowledge in source code versioning control using GIT, such as GITHUB will be added advantage
Knowledge of SDLC & Agile software development will be added advantage
Able to work independently as well as within a team
Open to learning new technologies and trends.


About the Position
We are looking for a passionate and experienced software engineer to join our team at Mumbai. In this role, your primary responsibilities will be to take ownership of developing user facing applications and features in an agile manner. You will design and implement scalable and performant front-end solutions from scratch, while also taking a hard look at the existing ones.
What you will do at QI?
- Design, develop and deliver new user-facing apps and feature and improve existing ones
- Take ownership of product(s), and contribute to dev cycles and sprints planning
- Ensure technical feasibility of UI/UX design, share inputs with other teams including product, design and QA
- Optimize applications for performance, user experience and SEO
- Build reusable code and libraries. Contribute to open source projects.
- Stay up-to-date with new technologies with an eye of constantly adapting and improving our systems and methods.
Basic Job requirements
- 2 years + work experience in a similar role
- Strong experience in HTML5, CSS, DOM and front-end tooling ecosystem (Gulp,Grunt, Webpack)
- Excellent concepts and command over JavaScript
- Strong concepts and commercial experience in Vue.js
- Solid foundation in software development ( algorithm design, data structure, SDLC)
- Good concepts of unit testing and automation testing for UI components
- Good understanding of web app performance including Google Core Web Vitals metrics.
Location - Remote
Good to have
- Basic knowledge of REST API and relational databases
- Basic understanding of browser internals
- Familiarity with web components and shadow DOM
- Exposure to progressive web app design.
About QuantInsti®
QuantInsti® was started in 2010, by the founders from iRage – a leading quant and algo trading firm in India. From its early days focused on bridging the industry knowledge gap in the field of high-frequency trading, we have come a long way in the last decade. Today, we have a user base from 180+ countries with a growth rate much over 50% year-on-year.
At QuantInsti®, we swear by our goal of revolutionizing the way people approach the financial markets by empowering individuals and institutions with bleeding edge education and technologies. We offer high quality https://www.quantinsti.com/epat">learning experience and best-in-class https://quantra.quantinsti.com/">courses geared towards a global audience in quantitative trading and investing. Our in-house developed technology aims to bring institutional grade tools and https://quantra-blueshift.quantinsti.com/">platforms to democratize systematic and quantitative trading.
We achieve this by putting technology at the core of our business. We have a complex ecosystem of microservices and applications deployed over a fully cloud-based infrastructure. Our tech stack includes Node.js, Vue.js, Python and Docker. The team is driven by user experience, with strong focus on delivering scalable software solutions to complex and evolving business goals.
Why you should join us?
At QuantInsti, we work at the cutting edge of FinTech and EdTech offerings. We work with the newest technologies with a goal of delivering best experience to our users in a scalable manner, with high-performance and availability. If you love to be challenged intellectually, rest assured we have plenty of them for you. We follow an open and free work culture, where you are encouraged to ask questions, learn and teach. We offer a fast-paced environment where you take ownership of what you design and deliver. If you are looking for a move where you will find a reason to wake up every morning and rush to work, come join us.



The ideal candidate will be a BTech in Computer Science or an MCA well-versed in full stack development of business applications using PHP with MySQL and HTML as database and front end. Knowledge of other tech stacks is preferred as also understanding of MS Azure cloud environment. Familiarity with PowerBI will be useful.

- Knowledge of MySQL necessary
- Basic HTML & Javascript
- No framework experience needed (will be trained on Laravel)
- Strong programming fundamentals essential
- Should be living on the western line of Mumbai (Andheri to Borivali ideal) - Central do not apply
- Work Timings: 10:00 to 7:00 pm with 2nd & 4th Saturday off
- Should be comfortable working in a small team on product development environment
- Callify.ai SaaS Voice based software product



