
Database Engineer
at Next gen BI platform for data driven performance marketers
This leads to a very interesting and challenging use case in the emerging field of large scale distributed HTAP, which is still not mature enough to provide a solution out of the box that works for our scale and SLAs. So, we are building a solution that can handle the complexity of our use case and scale to several trillions of rows. As a "Database Engineer", you will evolve, architect, build and scale the core data warehouse that sits at the heart of Clarisights enabling large scale distributed, interactive analytics on near realtime data.
What you'll do
- Understanding and gaining expertise in existing data warehouse.
- Use the above knowledge to identify gaps in the current system and formulate strategies around what can be done to fill them
- Avail KPIs around the data warehouse.
- Find solutions to evolve and scale the data warehouse. This will involve a lot of technical research, benchmarking and testing of existing and candidate replacement systems.
- Bulid from scratch all or parts of the data warehouse to improve the KPIs.
- Ensure the SLAs and SLOs of data warehouse, which will require assuming ownership and being oncall for the same.
- Gain deep understanding into Linux and understand concepts that drive performance characteristics like IO scheduling, paging, processing scheduling, CPU instruction pipelining etc.
- Adopt/build tooling and tune the systems to extract maximum performance out of the underlying hardware.
- Build wrappers/microservices for improving visibility, control, adoption and ease of use for the data warehouse.
- Build tooling and automation for monitoring, debugging and deployment of the warehouse.
- Contribute to open source database technologies that are used at or are potential candidates for use.
What you bring
We are looking for engineers with a strong passion for solving challenging engineering problems and a burning desire to learn and grow in a fast growing startup. This is not an easy gig, it will require strong technical chops and an insatiable curiosity to make things better. We need passionate and mature engineers who can do wonders with some mentoring and don't need to be managed.
- Distributed systems: You have a good understanding of general patterns of scaling and fault-tolerance in large scale distributed systems.
- Databases: You have a good understanding of database concepts like query optimization, indexing, transactions, sharding, replication etc.
- Data pipelines: You have a working knowledge of distributed data processing systems.
- Engineer at heart: You thrive on writing great code and have a strong appreciation for modular, testable and maintainable code, and make sure to document it. You have the ability to take new initiatives and questioning status quo.
- Passion & Drive to learn and excel: You believe in our vision. You drive the product for the better, always looking to improve things, and soon become the go-to person to talk to on something that you mastered along. You love dabbling in your own side-projects and learning new skills that are not necessarily part of your normal day job.
- Inquisitiveness: You are curious to know how different modules on our platform work. You are not afraid to venture into unknown territories of code. You ask questions.
- Ownership: You are your own manager. You have the ability to implement engineering tasks on your own without a need for micro-management and take responsibility for any task that has been assigned to you.
- Teamwork: You should be helpful and work well with teams. You’re probably someone who enjoys sharing knowledge with team-mates, asking for help when they need it.
- Open Source Contribution: Bonus.

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About Tamasha
Tamasha is a product-led technology company focused on building immersive,
real-time social and gaming experiences for the next generation of users. Our
products combine scalable backend systems, real-time communication, and AI
driven intelligence to create engaging digital ecosystems.
Our flagship products include:
• Openly – A modern social engagement platform enabling meaningful
conversations and community-driven interactions.
App: https://play.google.com/store/apps/details?id=com.openly.app
• FriendChat – A real-time chat-first social product designed for seamless, low
latency conversations.
• Playroom (Voice Chat) – A live voice-based social gaming experience enabling
players to connect, communicate, and collaborate in real time.
App: https://play.google.com/store/apps/details?id=com.playroom.voice
Role Overview
We are looking for a hands-on SDE 2 – Backend Developer (Node.js) who will play
a critical role in building scalable backend systems, integrating AI-driven solutions,
and shaping Tamasha’s technical foundation.Key Responsibilities
Hands-on Engineering: Actively code, design backend architecture, and solve
complex technical problems.
AI & Emerging Tech: Integrate AI agents, automation, and recommendation
systems.
Scalable Infrastructure: Design secure, scalable cloud systems on GCP and
Azure.
DevOps & Deployment: Build and manage CI/CD pipelines and monitoring
systems.
Engineering Excellence: Ensure high-quality, secure, and performant code.
Cross-functional Collaboration: Work closely with product, design, and business
teams.
Team Building & Mentorship: Mentor engineers and support hiring initiatives.
Required Skills & Experience
3–4 years of backend development experience in a product-based company
Strong expertise in Node.js (Express / NestJS)
Experience with SQL and NoSQL databases
Hands-on experience with cloud platforms (GCP / Azure)
Experience with CI/CD pipelines and DevOps practices
Strong understanding of system design and scalability
Why Join Tamasha?
• Build products used by thousands of real users
• Work on AI, real-time systems, and scalable architectures
• High ownership and fast growth opportunities
• Strong engineering culture with startup agility
Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 4 to 7 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns. • Should have the ability to analyze, design, develop and test complex, low-latency client facing applications. • Good development experience with RDBMS. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
JOB DESCRIPTION:
Location: Pune, Mumbai
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Hiring for Java Developer
Experience : 5 to 10 yrs
Notice Period : 0 to 15 days
Location : Pune
Work Mode : WFO (5 days)
As Java developer you would be expected to perform many duties throughout the development lifecycle of applications, from concept and design right through to testing. Here are some of the responsibilities you may have:
Develop high-level design and define software architecture
Implement and maintain quality systems within the group
Proficiently estimates, design approaches and nimbly move to alternate apporaches, if needed, develop and execute unit test strategies
Monitor and track tasks, and report status
Assist project heads to conceptualize, design, develop, test and implement technology solutions
Effectively collaborate with stakeholders and users to ensure customer satisfaction
Skill Set :
Java 7 / Java 8 with microservices, Multithreading, Springboot, Junit, kafka, Splunk (Good to have), Open Shift (Good to Have), Authentication/ Spring Security (Good to have)
Profile : Java Developer
Experience : 3+ Years
Location : Pune (Viman Nagar)
Mode : 5 Days WFO
(Only immediate joiners & candidates serving notice period)
Roles :
- Java Application Developer
- Microservices Architect
- API Developer
- Code Reviewer
- Technical Problem Solver
- Database Integration Specialist
- Team Collaborator
Responsibilities :
- Design, develop, and maintain Java-based applications using Spring Boot
- Build and deploy microservices architecture following best practices
- Develop RESTful APIs and web services for integration
- Write clean, efficient, and well-documented code
- Implement design patterns for scalable solutions
- Work with databases (MySQL, PostgreSQL) for data management
- Perform comprehensive code reviews and testing
- Collaborate with cross-functional teams (Frontend, QA, DevOps)
- Participate in Agile/Scrum development processes
- Translate business requirements into technical solutions
- Troubleshoot and debug complex application issues
- Follow CI/CD practices for smooth deployment
- Monitor and optimize application performance
• Experience in JSP & Servlets, Struts, Hibernate, MVC, EJB, Spring Framework, J2ME (LWUIT Lightweight user interface is added advantage),
• Android, AJAX, jQuery, Java Web services, Dynamic Reports are desirable.
• A good understanding of OOP concepts, MVC architecture, and RDBMS is desirable.
• Exposure to all phases of the Software Development Life Cycle (SDLC) is a plus. ● Web Technologies like HTML, CSS, Javascript and JQuery
• Excellent interpersonal/communication skills, both verbal and written •
• 7+ years of experience in Java/Node.js, REST/Graph QL, Redis on AWS Fargate • Design and develop high quality back-end code (Node.js/Go/JAVA) • Excellent in one or more Go, Java, Node.js skills • In-depth knowledge of Restful / GraphQL API, JSON.
• Experience with CI/CD and tools like Git, Bitbucket and Jenkins.
• Solid understanding of relational databases (e.g., Postgres, MySQL) and experience in NoSQL (e.g., Graph DB, MongoDB, DynamoDB).
• Developing new software applications, features, and distributed services that support a high-scale web application
• Experience working in a fast-paced environment; continuous deployment, test-driven development, agile methodologies
• Stay current with the latest back-end technologies and best practices and share your findings with the team
• Help evolve our backend stack and mentor our other developers when it comes to patterns and best practices
• Work as part of an agile team across a variety of application domains
• Write structured, tested, readable and maintainable code • Participate in code reviews to ensure code quality and distributed knowledge
• Ability to contribute to each step of the product development process (ideation, implementation, and release)
• Experience with performance tuning, profiling, and debugging applications
1. Must have knowledge of Laravel and PHP
2. Can solve bbugs
3. can work with multiple of projects like eCommerce, Tour & Travels, LMS etc.
Roles & Responsibilities:
- Design and Build API/Micro services using Spring boot.
- Experience in Spring Reactive programming.
- Exposure to docker and containerization
- Developing enterprise grade highly scalable java-based application
- Writing test cases using Java testing framework like JUnit, Mockito.
- Proficient understanding of code version tools, such as Git, SVN
- Displaying initiative and an ability to lead others, and develop applications team disciplined manner
- Participating in application solutions including assisting with planning and architectural design, development, resolution of technical issues, and application rationalization.
- Utilizing and applying robust analytic thinking with the ability to identify, debug, and resolve technical issues.
- Achieving significant contributions within a small team of developers to lead teams and deliver solutions within an Agile methodology, whilst ensuring quality, timeliness and team-wide adherence to good architectural practice and guidelines.
- Good Experience in Application Software Design and Development, Object Oriented Analysis and Design (OOAD), Software Testing and Debugging.
- Conduct peer code reviews










