
Only 10% of India speaks English and 90% speak over 25 languages and 1000s of dialects. The internet has largely been in English. A good part of India is now getting internet connectivity thanks to cheap smartphones and Jio. The non-english speaking internet users will balloon to about 600 million users out of the total 750 million internet users in India by 2020. This will make the vernacular segment one of the largest segments in the world - almost 2x the size of the US population. The vernacular segment has very few products that they can use on the internet. One big need is that of sharing thoughts. Twitter serves this need globally through a micro-blogging platform. However most of the Tweets are in English and the vernacular Indian feels out of place on it. To solve that problem, we started Koo.
About The Company
The app is a micro-blogging platform in Indian languages. It is an app built in India, for Indians, to share their thoughts and opinions on any topic in their mother tongue using Audio/Video/Text. Koo gives a voice to Indians and enables the “Best of India” to share their thoughts with the “Rest of India”. We provide a personalised feed to users by letting people select the people they want to follow. The user is then shown content from these people. Some of the top minds of India are invited to share their thoughts and opinions on various topics. Users can follow such personalities and follow what they are talking about, and share their opinions too.
We are a Series A venture funded company. It has raised $6.5 million from stellar investors like Accel Partners, Shunwei Capital, Kalaari Capital, 500startups and Blume Venture Partners.
Technology Team & Culture
Nishant (CTO), has headed engineering for large and complex platforms like Coverfox and CitrusPay catering to the needs of millions of consumers. Technology team comprises sharp coders, technology geeks and guys who have tried entrepreneurship or are very entrepreneurial in nature and extremely passionate towards technology. Anyone being part of a technology team will have a lot to learn from their peers and mentors. Download our android app nearing 1 million downloads from play store and take a look at what we are trying to build. Technology stack compromises of a wide variety of cutting edge technologies like Elixir, Java 11, Reactive Programming, MongoDB, Neo4j, Kubernetes, AWS, NodeJS, Python, ReactJS, Redis, Aerospike, ML, Deep learning etc. Working hard & party harder is the mantra that we believe in.
Technology skill sets required for a matching profile
1. Work experience between 2 years to 8 years in building large scale high user traffic consumer facing applications with desire to work in a fast paced startup.
2. Knowledge on reactive and asynchronous programming is preferable. If you have worked with coroutines, goroutines, high concurrency or optimized number of threads for processing on your backend server you could be a good fit.
3. Extremely proficient at writing performant, scalable and production ready code in Kotlin, Java (8 or above, comfortable with concepts like lambda, streams, multithreading etc), Elixir, Rust, or Golang. Should be familiar with static code analysis, code coverage and code reviews.
4. Experience with NoSQL DBs like MongoDB, Cassandra, Redis or Aerospike is required.
Knowledge of graph DBs like Neo4j is preferred.
5. Strong in algorithms, problem solving and data structures.
6. Knowledge of TDD and experience with building applications integrated with CI-CD pipelines (automated build, tests and deployments).
7. Exposure to micro-services with good understanding of containers, kubernetes, logging, alerting and monitoring. Inter services communication. Should know how to handle multiple versions of APIs.

Similar jobs
Job Title: Tech Architect - Java Spring Boot
Company Name: Chella Software Private Limited
Company Website
Company details
THE PARTNER OF CHOICE FOR FINANCIAL MARKETS
Our deep domain experience, ultra-high-performance software solutions, and on-time project delivery make us the preferred partner for the financial markets.
Over the last two decades, Chella Software has built deep domain experience in the financial markets and a capability for developing ultra-high-performance software that can handle very high volumes of data with the lowest levels of latency.
We are now preferred partners for a host of Central Banks, Stock Exchanges, Clearing Corporations, Brokerages, and Institutional Investors across 12 countries.
We are a global provider of fintech solutions for central banks, exchanges, central counter parties, and financial market intermediaries. We meet the software needs of customers in India, the Middle East, Africa, Singapore, and the USA.
Central Banks:
- Our portfolio of solutions for central banks includes:
- Chella Switch, a national payment and settlement system designed for central banks in frontier markets, and
- Chella Horizen, a robust, reliable and full coverage investment management and accounting platform for reserve management.
Exchanges and CCPs:
We are at the forefront of providing customized solutions for exchanges, CCPs, depositories, and other financial market infrastructure. Our high-speed, low-latency, high-volume, massively scalable systems are spread across the core areas of trading, surveillance, risk management, clearing, settlement, and compliance.
Our teams have deep expertise in:
- Developing and implementing bespoke solutions on a build-operate-maintain model.
- Re-architecting and re-engineering core applications to address performance and scalability challenges.
- Migrating legacy systems to the latest technologies without disrupting operations.
- Defining and building digital experiences and journeys that facilitatethe addition of new investors to the market.
Brokerages:
Our solutions for brokerages include:
- Chella Trader, a multi-asset, multi-exchange, multi-currency, omni-channel order management system, and
- Chella Clearvision is a modular broker back office that helps scale a broker’s business with incremental investments.
Institutional Investors:
We meet the investment management needs of institutional investors through Chella IMS, a full coverage post-trade investment management and IFRS-compliant accounting platform for pension funds, insurance firms, and family offices.
Location: Madurai - Tamil Nadu
Mode of Working: Work Form Office (Interview shall be face to face at Madurai)
Days of Working: 5 Days a week
Responsibilities
Job Description:
- Tech Architect with expertise in Java Spring Boot to design and implement robust, scalable, and high-performance backend systems. As a Tech Architect, you will be responsible for shaping the technical direction of complex software projects and providing architectural guidance to engineering teams.
- This role requires deep technical knowledge, leadership skills, and the ability to collaborate with various stakeholders to ensure the successful delivery of solutions that meet business and technical requirements. Experience in the Fintech domain is an added advantage.
Key Responsibilities:
- Architectural Design & Strategy:
- Lead the architectural design and implementation of scalable, maintainable, and secure backend systems using Java, Spring Boot, and microservices architecture.
- Define best practices for code quality, testing, security, and deployment processes. Drive the adoption of modern development methodologies (Agile, DevOps) and frameworks.
- Technical Leadership:
- Provide mentorship and technical guidance to developers and engineers on coding standards, design patterns, and technologies.
- Ensure the architecture is aligned with business goals and technical constraints. Conduct code reviews and enforce best practices to maintain high-quality standards.
- Collaboration:
- Work closely with Product Managers, Business Analysts, and other stakeholders to gather requirements and translate them into technical solutions.
- Collaborate with cross-functional teams to define system requirements, integrate with third-party services, and ensure the overall system design is cohesive.
- Problem Solving:
- Analyze and resolve complex technical challenges, such as performance bottlenecks, scalability issues, and system integrations.
- Evaluate and implement new technologies, tools, and frameworks to continually improve the development process.
- Documentation & Reporting:
- Document architectural designs, technical specifications, and implementation guides.
- Provide regular updates on project progress, risks, and technical challenges to senior leadership.
- Continuous Improvement:
- Stay up to date with emerging technologies, industry trends, and best practices.
- Recommend improvements to system architecture, processes, and technologies to enhance the software development lifecycle.
Interview process: Virtual and Face-to-Face
Skills:
Experience: 9-12 Years
Location: Madurai
Job Type: Full-time
Education: B.E(Any stream)/ B.Tech / M.E / M.Tech. or similar
Skills: Java, Spring Boot, and microservices architecture.
Why Join Us?
- Opportunity to work on cutting-edge solutions for capital markets.
- This is a global role and, hence, will provide opportunities to work with organizations across the globe.
- Learn from experienced professionals and grow into a solution architect, product manager or sales role.
- Opportunity for rapid personal and professional growth.
ATGS official Email
anita at atgs.co.in
WHAT YOU'LL WORK ON
- Design and implement scalable APIs and microservices using Node.js & Express
- Manage deployments via GitHub Actions and CodeDeploy; work with Docker & AWS
- Optimize MongoDB queries and use Redis caching for high-concurrency traffic
- Bridge Figma designs to backend logic using Next.js and Tailwind CSS
- Maintain monitoring with Nginx & PM2 to ensure 99.9% uptime
WHAT WE'RE LOOKING FOR
- 1+ year of professional experience building and maintaining production applications
- Deep Node.js knowledge: async programming, RESTful API architecture
- MongoDB mastery: schema design, indexing strategies, complex aggregation pipelines
- Hands-on AWS (EC2/S3 minimum) and practical CI/CD pipeline experience
- Proven ability to take a feature from PRD / Figma to stable production deployment
WHAT WILL MAKE YOU STAND OUT
- Experience maintaining apps with high concurrent user counts
- Comfortable with Nginx configs and Dockerfiles
- Hands-on with payment gateway integration (Cashfree) and webhook handling
- Obsession with maintainable, well-documented, DRY code
AI Usage Policy:
AI tools (Cursor, Copilot, GPT-4) are force multipliers — use them. But you must own your code, reason hrough architectural trade-offs, and debug without relying solely on AI.
HOW TO APPLY:
- Tell us about the most complex bug you've solved or a backend system you built from scratch
- Share your GitHub profile
- Include at least two live project links showcasing your best work
- Your code will directly impact the learning outcomes of thousands of students.
Key Skills & Requirements
- Strong proficiency in Java 11 and above
- Hands-on expertise in Spring Boot and Microservices Architecture
- Strong Programming, Analytical, and Problem-Solving skills
- Proficiency with NoSQL Databases (MongoDB, Cosmos DB) and RDBMS (SQL/Oracle/Postgres)
- Experience with Messaging Queues (RabbitMQ/Kafka)
- Good understanding of Functional and Domain knowledge
- Expertise in Project Architecture & Data Flows
- Proficient in CI/CD tools (Jenkins or equivalent)
- Strong experience with Testing Frameworks: JUnit, Mockito, Cucumber, BDD
- Basic knowledge of Cloud Platforms (Azure / AWS)
- Familiarity with Project Management Tools – JIRA, Confluence, ServiceNow
- Monitoring tools knowledge like New Relic, Splunk, Nagios (good to have)
Responsibilities
- Design, develop, and maintain scalable backend applications using Java 11+ and Spring Boot
- Build and manage microservices-based solutions ensuring high performance and low latency
- Collaborate with cross-functional teams to define, design, and ship new features
- Implement best practices for CI/CD pipelines and automate deployment workflows
- Ensure code quality through unit testing, integration testing, and BDD practices
- Work with databases (SQL/NoSQL) for data modeling and optimization
- Monitor, troubleshoot, and enhance system performance using tools like Splunk, New Relic, Nagios
- Provide technical guidance and mentorship to team members
You have 3 to 14 yrs of software engineering & product delivery experience with strong
background in datastructures & algorithms
• You’ve proven software development credentials having successfully built complex
products
• You are experienced with one or more general programming languages (e.g. Java, C/C++,
Go). Ability to learn other coding languages as needed.
• You’ve proven software development credentials having successfully built complex
products
• You have a strong foundation in the fundamentals of computer science, with familiarity in
data structures, algorithms and a strong command of object-oriented principles.
• You have experience in one or more of the following areas: Server Backend, Distributed
and Parallel Systems, Full Stack Development (frontend and backend), Scalable Enterprise
Platforms and Applications, Application Security and Incident Management, Android,
iOS, and Machine Learning.
• You have a spark that separates you from the crowd and ability to think out of the box and
on your feet
• You possess multi-dimensional skills that make you a valuable co-worker in a fast,
changing and ambiguous environment
• You have the ability to learn other coding languages as needed real quick
• You are comfortable in working with a team that deals with ambiguity every day
Qualifications & Responsibilities
- Strong hands-on experience with Java; full-stack development
- Designs, codes, tests, debug, and documents software, and enhance existing components to ensure that software meets business needs
- Deploy and maintain Applications/Systems
- Work with other software engineers for one or more Agile scrum teams assigned to work on the project · Contribute to the design and architecture to enable secure, scalable, and maintainable software and should be able to clearly articulate the implications of design/architectural decisions, issues, and plans to technology leadership
- Develop reusable patterns and encourage innovation that will enhance team velocity · Collaborate on the design with other team members and product owners, both inside and outside the scrum team
- Estimate engineering work effort for the engineering team and effectively identify and prioritize the high impact tasks
- Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines
- Drive a quality mindset within the team
Skills:
- 2+ years of full Software Development Life Cycle experience
- 2+ years of experience working as a full-stack java developer
- 1+ years of web development with AngularJS
- Experience or familiarity with technologies such as WSDL, REST and/or SOAP web services, XML, JBoss, Adobe CQ5 DAM, HTML5, CSS3, Bootstrap, Hibernate, Spring.
Job Description: Java Full Stack Developer
Skills
Primary
- Java, J2EE, Spring MVC
- Hibernate or other ORM
- Web technology and security, REST framework
- Any one UI technology and ready to learn a new one.
- Database knowledge (MySQL, Oracle, Postgres)
- Unit testing frameworks
- Version Control (Eg., Git)
Good To Have
- JQuery, XML, HTML5, AngularJS/Angular and other UI technology
- Shell Scripting
- Python
Key Responsibilities
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- 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
- Stay up-to-date on emerging technologies
Requirements
- 2 to 5 years of work experience as a Java Developer or similar role
- BS/MS degree in Computer Science, Engineering or a related subject
- Proven hands-on Software Development experience
- Proven working experience in Java development
- 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 (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in developing web applications using at least one popular web framework
- Experience with test-driven development
Job Benefits and Compensation
- WebShar offers a very competitive salary depending on experience
- 24 days paid vacation each year (CL, PL, SL), earned at a rate of 2 days per month.
- MacBook Pro
- Flexible time / and availability to work from home from time to time
- Medical insurance
- Team outing and lunches,
- Reimbursement as per HR policies
○ Internet reimbursement upto 1500
○ Commutation reimbursement upto 6000
○ ISD reimbursement
Your Day-to-Day Tasks Include:
Works in requirements like Engineering, Design, Development, and Deployment. All the tasks involves working with Java, SQL Server and Couchbase.
Build and monitor data pipelines that serve 100+ websites, 150M+ unique impressions daily. Write code that can handle 4x more scale than the given requirement.
Maintain uptime of multiple distributed web applications.
Build data pipelines to pull data from upstream partners like Google.
You Should Have:
Minimum 3 years of experience with Java.
Minimum 2 year of experience with any SQL database (MySql, MSSql, Oracle, DB2, Sybase). Minimum 3 years of experience with web development.
Experience with any NoSql database (MongoDb, Couchbase, CouchDb, DynamoDb). Experience of designing/implementing/maintaining scalable systems.
Experience with any cloud platform (AWS/Azure/GCP).
Good To Have:
Experience with BI and data reporting.
Experience with Elastic search.
Understanding of data warehousing.
Experience in Node.js.
What do Microsoft, The Gap, Royal Bank of Scotland, Lockheed Martin, and top Open Source projects like JQuery have in common? They all use BrowserStack, as do over 25,000 other customers!
BrowserStack is the industry-leading, cloud web and mobile testing platform that enables developers to test their websites and apps on different operating systems and mobile devices. Since launching in 2011, our mission has been bold yet simple: To be the testing infrastructure for the internet. 6 years and billions of tests later, we are ready for our next phase of hyper growth. Bootstrapped for the first 6 years, we continue to be profitable since inception with a near exponential https://workable.com/nr?l=https%3A%2F%2Fwww.browserstack.com%2Fgrowth">growth in customers around the globe. Recently, we closed $50M in Series A funding from Accel
Are you are the one who wants to work on a tech-heavy product, and the challenging technical problems that it entails? Problems vary, and can be as diverse as scaling the product smoothly as the company grows, to setting up a device farm, or solving streaming issues through a browser, without the use of plugins. Will you be excited for the challenge to transform and think critically on many computer science disciplines including product design, usability, building APIs and user-centric online applications, business logic, scaling performance, and 24x7 reliability?
JOB RESPONSIBILITIES
- Writing high quality code, participating in code reviews, designing/architecting systems of varying complexity and scope, and creating high quality documentation supporting the design/coding tasks
- Lead out team meetings, stand-ups, and architecture/design discussions
- Identify areas of improvement in our frameworks, tools, processes and strive to make them better. Evaluate our success metrics and evolve our reporting systems
- Works on the web application layer, backend, systems, streaming and other associated technology to build our product and components
- Find solutions and solve issues around a variety of operating systems or programming languages
- Researching new technologies and adapt them to BrowserStack requirements
- Own and commit to all your work, and be accountable for your results
- Using and understanding code from Open Source
- Teaching others how to use new software
- Willing to learn new programming languages and databases
- Able to write efficient SQL queries and design schemas for relational databases
- Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people (no lone wolves)
- Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration
- Develop multi-tier scalable, high-volume performing, and reliable user-centric applications that operate 24x7
- Scale distributed applications, make architectural trade-offs applying synchronous and asynchronous design patterns, write code, and deliver with speediness and quality
- Good experience in at least one scripting language: Ruby, Nodejs, Python, AppleScript, Unix shell or similar
- Familiarity with one compiled language: C, Java, Go or similar
- Good knowledge of operating systems and networking concepts
- Reasonable knowledge of Windows and/or Linux operating systems
- Ability to work on Windows and Linux platform below the application layer, including file systems, kernels, custom installations, shell scripting, internal APIs, etc
- Aggressive problem diagnosis and creative problem solving skills
- Startup mentality, high willingness to learn, and hardworking
- Experience of 3-6 years









