
Greetings from Wissen Technology!
We are hiring Java Developers for Mumbai location.
Exp - 4 - 8 years
Location - Mumbai (Goregaon) - Hybrid
Notice Period - immediate or serving notice period only
Interview Process - Initial rounds virtual + Final round F2F
Software Engineer/Senior Software Engineer/Lead Engineer-Java
· Experience in Core Java 5.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
· Possess good architectural knowledge and be aware of enterprise application design patterns.
· Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
· Good development experience with RDBMS
· Good knowledge of multi-threading and high volume server side development
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.
Job Brief-
· Understand product requirements and come up with solution approaches
· Build and enhance large scale domain centric applications
· Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Position Responsibilities :
The Database Architect is responsible for the design, optimization, and evolution of the database layer supporting enterprise applications in cloud environments. This role focuses on ensuring efficient data access patterns, scalable query workloads, and robust database architecture capable of supporting high-volume and high-concurrency systems.
This role goes beyond traditional database administration and requires deep technical expertise in SQL query optimization, database internals, and performance diagnostics. The Database Architect analyzes how applications interact with the database and guides improvements in schema design, data access patterns, and system scalability.
As a senior technical leader, the Database Architect helps define long-term strategies for scalable and efficient data architecture while working closely with engineering teams to promote best practices for database design and SQL development.
KEY RESPONSIBILITIES
Database Architecture & Optimization
- Design and evolve database architectures for scalable enterprise systems.
- Define efficient data access patterns that support high concurrency and large datasets.
- Improve schema design, indexing strategies, and query patterns.
- Ensure database designs support both transactional and data consumption workloads.
SQL Performance Engineering
- Analyze and optimize complex SQL queries and execution plans.
- Improve database performance through indexing strategies, statistics management, and query tuning.
- Investigate workload behaviour and recommend architectural improvements.
Data Access & Systems Thinking
- Provide guidance on scalable approaches for retrieving and delivering data for data-intensive application features.
- Recommend architectural strategies such as data aggregation, caching, or pre-computed datasets where appropriate.
- Apply systems thinking to improve how data is modeled, accessed, and delivered across the application.
Advanced Diagnostics
- Diagnose database behaviour using tools such as Query Store, Extended Events, and execution plan analysis.
- Analyze query performance, wait statistics, and workload patterns to identify optimization opportunities.
Collaboration & Technical Leadership
- Partner with engineering teams to guide scalable SQL development and data access practices.
- Participate in architecture and design discussions involving database interactions.
- Document best practices and architectural recommendations.
AI-Assisted Engineering
- Use AI-assisted tools to accelerate query analysis, diagnostics, and workload investigations.
- Validate AI-generated insights through empirical testing and database telemetry.
Qualifications :
TECHNICAL SKILLS & EXPERTISE
Database & SQL Server (Required)
- Advanced SQL Server performance tuning, including query optimization, execution plan analysis, and index design
- Strong experience diagnosing and resolving deadlocks using Extended Events and deadlock graphs
- Deep understanding of locking, blocking, and transaction behaviour, including wait statistics and lock escalation
- Experience optimizing stored procedures, including mitigation of parameter sniffing and plan cache management
- Strong knowledge of indexing strategies, including covering indexes and filtered indexes
- Solid understanding of statistics, cardinality estimation, and query optimizer behaviour
Performance Analysis Tools (Required)
- Experience using SQL Server Profiler and Extended Events for workload diagnostics
- Advanced execution plan analysis using SSMS or Azure Data Studio
- Familiarity with SET STATISTICS IO/TIME for query performance evaluation
- Strong experience using Query Store to analyse query performance and plan behaviour
- Ability to diagnose issues through wait statistics and blocking chain analysis
Enterprise Application Data Architecture
- Strong understanding of database design within multi-tier enterprise applications
- Experience optimizing database workloads supporting high-concurrency systems and large datasets
- Understanding how application query patterns influence database performance
- Familiarity working with application platforms such as .NET, APIs, or modern web frameworks
Cloud & Enterprise Database Environments
- Experience working with cloud-hosted database environments
- Understanding of scalability considerations in enterprise systems
- Experience analyzing and optimizing database workloads in production environments
QUALIFICATIONS
- 8+ years of experience working with enterprise database systems
- Proven expertise in SQL performance tuning and database workload optimization
- Strong experience in analysing execution plans and database performance behaviour
- Experience collaborating with engineering teams on data architecture and query design
- Strong analytical and problem-solving skills
AI-FIRST MINDSET REQUIREMENT
We value engineers who view AI as a productivity multiplier. The ideal candidate actively leverages AI tools to accelerate diagnostics, analyze database workloads, and uncover optimization opportunities while applying strong engineering judgment to validate results
About FoundingMinds:
We are one of the preferred product development partners in the software industry. We work with clients across the globe to design and develop products for them. We are also an incubator for many startups. As a contributor, you will get an opportunity to work with different ideas, brainstorm with diverse people, widen your way of thinking, learn different technologies, research what you have to do, contribute your best to the projects and take ownership of what you do to your project. If you are passionate you will have no dearth in opportunities to build your career in Founding Minds.
Profile required
- Experience in Java stack (preferably Springboot)
- Strong knowledge in Design Principles & Patterns and Development methodologies
- Must have Good experience working on Rest services
- Good experience with Java Microservices architecture
- Strong Expertise with RDBMS and NoSQL databases
- Experience in test driven development (unit testing. Mocking, BDD)
- Strong experience in Agile methodologies
- Preferable to have experience working on Angular and React
- Preferable to have experience on Docker and kubernetes
- Preferable to have experience in finance domain
- Preferable to have experience in AWS or any other cloud services
The ideal candidate should have
- Strong fundamentals in Core Java, JDBC, and J2EE.
- Hands-on experience of development and support of enterprise-level cloud-native application
- Hands-on experience in Java, Spring, Spring Boot, ORM Tools, and Cloud technologies
- Hands-on experience of Java Microservices architecture
- Hands-on experience with AWS services
- Good communication & presentation skills
- Have a good sense of humor
If you’re an innovative thinker with a passion for technology and a drive to make a difference, we’d love to meet you. Apply now and take the next step in your career with FoundingMinds!
A leading software company is looking for Java candidates for Pune location.
Experience in Springboots, microservices and fintech domain
Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, data structure and SQL skills .
Required Skills:
- Experience - 5 to 10 years.
- Experience in Core Java 5.0 and above, CXF, Spring.
- Extensive experience in developing enterprise-scale n-tier applications for 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.
- Design & build a highly scalable, robust backend architecture for our cloud services
- You will be part of a software development team for developing and enhancing SaaS applications.
- Take responsibility of entire module/feature set and develop, test, debug and maintain the application software throughout the product lifecycle
- Working with the Product Management Team to validate and plan new features
- Working with cross-functional teams to deliver stellar end user experience
- Research new technologies and tools that help in building the next generation of our services
- Test, debug and maintain the application software throughout the product lifecycle
Desired Candidate Profile
- Must have experience with web development in Java 8+, Spring/J2EE or similar frameworks and technologies. (Mandatory)
- Must have worked on REST API (Mandatory)
- Should be an enthusiast for writing clean, reusable code, willing to learn new things as a self-starter person
- 2+ years of strong relevant experience in developing Object-oriented technologies.
- Strong working experience with any of the following DBs - Postgres / MySQL / Oracle or MSSQL
- 3+ years of professional software development experience
- 3+ years of object-orientedJava/ J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc…)
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Understanding concepts of CDN & Content Management
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Experience leading or working with cross geography teams
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
POSITION
- You will be actively involved during the entire technology development lifecycle. Responsibilities will include all aspects from design, coding, testing, customer feedback cycle changes and support.
- Primary role in software development with object-orientedJava
- The customized solutions that you will be architecting and developing will also require knowledge and experience with spring / Hibernate, SOAP / REST, and SQL.
- Ability to learn new technologies quickly and willingness to read and digest large existing source code and take ownership on complex component or subsystem to drive improvements and re-architecture
- Work with a team of amazing developers and designers involved in the design and development of global platforms
- Invent and prototype new features, build, test and ship them to customers as SaaS, cloud based or hosted product platforms
- Drive the implementation of new technologies which improve our ability to build great customers products.
- Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.
QUALIFICATION
- A Bachelor’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
As a Software Engineer at Quince, you'll be responsible for designing and building scalable infrastructure and build applications to solve some very interesting problems in the logistics and finance tech space.
Responsibilities:
- Design and architect solutions on the cloud for various business problems with workflow efficiency and scale in mind.
- Be on the forefront with the business team to learn, understand, identify and translate function requirements into technical opportunities.
- End-to-end ownership - from scoping the requirements to the final delivery of the solution with keen eye to details and quality.
- Build and improve logistics components for this innovative M2C supply-chain model.
- Build and maintain scalable ETL data pipelines.
Requirements:
- Bachelors/Masters/PhD in Computer Science or closely related subject.
- 1-5 years of experience in building software solutions.
- Good at data structures and their practical applications.
- Proficiency in Kotlin, Java, Python.
- Experience in deploying and maintaining applications on cloud platforms (Ex: AWS, Google cloud).
- Proficiency with SQL and databases - relational and/or nosql (Snowflakes, AWS RedShift, etc).
- Experience with messaging middleware such as Kafka is good to have.
Dot is a technology start-up, operating in Fintech and e-commerce space. With the aim to
revolutionize offline-to-online(O2O) space, Dot strives to enable digital transformation of Offline businesses using smart innovations. This is a huge market, serving the 1.3 billion strong Indian population.
The start-up is led by a strong and experienced team. It has already raised seed funding of ~US$ 35.5 Million from renowned investors.
To know more, head over to: www.dotpe.in
About the Founders
The company is led by an experienced team, three ex-PayU employees - Shailaz Nag, Gyanesh Sharma & Anurag Gupta, with proven expertise & knowledge of the fintech space as well as experience in building & managing companies.
Shailaz Nag is a well known visionary entrepreneur. He was ex-Managing Director and co-founder of PayU, (India’s largest and profitable Payment Company) which is currently valued at US$ 3 Billion. He was also one of the founding members of Ibibo Group. Shailaz Nag is a Chartered Accountant and also holds an MBA degree.
Gyanesh Sharma is an IIT Delhi alumnus, holding a B.Tech. degree in Computer Science. He has strong experience in leading tech teams, holding position of
● CTO at Shopclues
● Head of engg. at PayU
● Engg. Head at MakeMyTrip
Anurag Gupta has a decade long experience in building financial services business. He was Vice-President & Business head at PayU for Omnichannel business. He also headed Bank & Product Partnership for PayU.
Investors
Dot has raised seed funding of US$ ~35.5 million from
● Naspers Fintech (PayU) -
○ $120bn group with global presence. Listed in London, Johannesburg, Amsterdam
○ Presence in India : MMT-Goibibo, PayU, Flipkart, Swiggy, Byju’s, OLX
○ Global Presence : Tencent - WeChat, OLX
● Fosun RZ Capital
○ Affiliate of Fosun Group - A $100Bn Chinese conglomerate
○ Presence across global growth markets
● Info Edge
○ Parent company of naukri.com, jeevansaathi.com, 99acres.com, shiksha.com
○ Listed on NSE & BSE with a market cap of INR 27,000 crore
○ Major investor in zomato.com & policybazaar.com
Products
At Dot, we are solving the key problems that lie at the heart of Offline businesses by equipping them with commerce and fin-tech products. We are building a horizontal Omni-channel platform encompassing several Products all aimed at empowering all types of merchants, big or small, with Digital Technology. Whilst strengthening the merchants, our products also aim to direct this digital transformation towards improving the customer journey.
Our initial Product line-up has already garnered attraction from several renowned enterprises as well as significant interest from every medium and small-scale merchant we touch. And this just marks the start of our journey!
About Profile
Responsibilities
• Understanding the business requirement and provide good scalable solution
• Integration of user-facing elements developed by a front-end developers with server side logic
• Completely owning the backend services of a module
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Our stack is ReactJS, React Native, Golang, MySQL, NoSQL and hosting environment is AWS
Skills and Qualifications
• Extensive and expert programming experience in anyone programming language (Golang/ C/ Java).
• A solid foundation in computer science, with strong competencies in data structures, algorithms, software design and distributed system applications
• Experience with building and scaling apps with RDBMS as well as NoSQLs.
• Experience creating scalable Web APIs for mobile and browser consumption
• Integration of multiple data sources and databases into one system
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Have a penchant for solving complex and interesting problems
• Worked in start-up culture with high levels of ownership and commitment
• Excellent coding skills – should be able to convert design into code fluently
• Engineers from Tier 1 colleges
We’re looking for a Senior Backend Engineer to help us build the tools, services, and applications that will enable us to be the planet’s most patient-focused pharmacy. You will work on projects ranging from greenfield initiatives to matured products with an active user base.
What you’ll do:
- Collaborate with engineering team to design and implement products using event driven micro-services architecture.
- Interact with Product Managers and key stake-holders on regular basis to understand and execute Product vision.
- Take charge of end-to-end feature development, right from proof-of-concept to production deployment and support
- Brainstorm and lead continuous improvement projects for product
- Providing feedback to peer developers on code quality and development standards.
- Mentoring team on strong coding and design standards.
- Setting the bar high for development practises while striking the right balance between pragmatism and perfection for code and processes.
- Effectively document API's and services using Swagger/OpenAPI, visualize flow and dependencies using diagrams, and create technical documents on engineering wikis.
- Present crisp and clear feature demos to stakeholders.
Some of our opensource projects- https://meet.google.com/linkredirect?authuser=0&dest=https%3A%2F%2Fgithub.com%2Fmedly">https://github.com/medly
Your tool-belt:
We don’t expect anybody to be an expert on all of these, but you should be deeply familiar with some, and a self-starting learner who isn’t afraid to ask for help:
- Polyglot Development (at least 1 more lang apart from Java and JavaScript)
- At least one JVM language
- Functional Programming,
- OO Design, Clean Code, SOLID principles
- Solid grasp on HTTP, and REST
- Web based SaaS product development
- Deployment to AWS or any cloud
- Test Driven Development,
- Security Compliance like HIPAA, PCI-DSS, SOC2
- Git, Linux, CI/CD, Gradle, IDEA
- Security based on OAuth2 / OIDC
- SQL and NoSQL DBs like PostgreSQL, DynamoDB, ElasticSearch
- Docker
- SQL Migration tools like Liquibase, Flyway
- Semantic Versioning, Feature Toggles, PR, Feature Branches
What you`ll need:
- 3+ Years of experience mainly on Backend Development using any two languages (Java, Kotlin, NodeJS, Ruby etc.)
- Minimum a bachelor degree in Computer Science, Engineering or any related field.
You will work on the following:
- Develop service/APIs using Kotlin/Micronaut Node/Serverless
- Aurora Serverless PostgreSQL DB
- AWS, Lambda, API Gateway, Amplify, Cognito, Okta
- Github, Github Actions, SonarCloud
- Database versioning using tools like Liquibase
- Terraform to manage infra
- Cloudwatch/AWS X-Ray to monitor the infra
- Opportunity to make Open Source Contribution









