
8–12 years of experience in Java application development.
Strong hands-on experience with Java, Spring, Spring Boot, and Hibernate/JPA.
Proficiency in SQL and relational databases (Oracle, SQL Server, PostgreSQL, or MySQL).
Experience in SQL query optimization, indexing, execution plan analysis, and database performance tuning.
Knowledge of REST APIs, Microservices, Maven/Gradle, Git, and JUnit.
Familiarity with CI/CD tools and Agile methodologies.
About Wissen Technology:
· 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. We help clients build world class products.
· Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.
· Globally present with offices 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.
· Wissen Technology has been certified as a Great Place to Work®.
· Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
· Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
· 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.
We have served clients across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include the likes of Morgan Stanley, MSCI, State Street Corporation, Flipkart, Swiggy, Trafigura, GE to name a few.

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.
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JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
Wissen Technology is now hiring for a Senior 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. - 5-8 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Role & Responsibilities :
- Individuals are responsible for all traditional development activities analysis, design, coding, testing, and documentation.
- Add new features to existing Windows and Web-based applications in Visual Studio 2019. Interacting with internal team.
- Transform business and design needs into innovative products.
- Drive all projects to completion within deadlines.
- Perform thorough testing to find issues ahead of time.
- Engineering software needs more precise analysis & coding skillset.
- Enhance skillset by working with fortune 500 clients.
- Interacting with internal team.
Qualifications :
- B.E in computer science or related fields.
- Excellent programming & communication skills Strong problem solving, judgmental, and decision-making skills.
- Ability to work at the tactical and strategic levels of IT initiatives.
- Impressive hands-on experience in Java, database(Oracle), OOPS, Java Swing, Javafx
- Self-Motivated, flexible & Innovative.
Job Description:
Minimum 3+ years of experience
Java, OOPS, Data structure, Design Patterns, Multithreading, Spring, Hibernate, Java Script based technology, knowledge of J2EE, PL - SQL..
Core Java Topics including Language Features, Architecture.
OOP Concepts in depth with real time scenarios
Understandings of special Keywords and their applicability as well as advantages and
disadvantages - Like static, final, this, super etc. static should be in depth
Singleton class, Serialization, Cloning, Anonymous Inner class concepts.
In depth concept of Dynamic and static polymorphism & Multiple Inheritance issue/ resolve.
Concepts on String, Exception Handling, Array etc.
Java SE 8 and 9 Features: Functional Inheritance, Lambda Expression, default and static method
etc.
Collection Classes in detail along with the internal data structure and working principle.
Multithreading concept. Concept on ConcurrentHashMap etc.
Analysis of Algorithm - Time Complexity – Big O Calculation
Code Optimizing techniques, Different Algorithm designs and strategies.
Design patterns in Java
Different Sorting & Searching Algo with their Time complexity analysis
Problem solving using Hackerrank or similar sites, with focus on Arrays, Linked Lists, Hash Maps,
Trees, Balanced Trees, Stacks, Queues, Strings , Big Number , Data Structures, Object Oriented
Programming
Exception Handling – Advanced, Sorting, Search, Recursion, Graph Theory.
Note: Core Java + PL/SQL (Unix will be add on)
Function: Software Engineering → Other Software Development
Java
Java developer responsibilities include designing, developing and delivering high-volume, low-latency applications for mission-critical systems.
Responsibilities:
Contribute to all phases of the development lifecycle.
Write well-designed, testable, efficient code.
Ensure designs comply with specifications.
Prepare and produce releases of software components.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
We are a Fintech Start up targeting to capture $ 900 BN consumer payment &lending opportunity. We are building platform of the future in which the offline / online merchants would be able to expand their consumer base. We also empower merchants to collect payment digitally and help build their identity through our offerings.
Consumers would be able to make their purchase decisions and would get the options to convert their purchases in to easy EMIs
The founders brings over 4 decade of banking & financial services experience with strong market connect to bring required resources (like Customer, Capital, relevant business team etc.). Detailed business model can discussed during the meeting process.About you
You are passionate, a strong technical contributor, and an emerging leader. You have a proven track record of creating reliable, scalable, and high-performance products, building large-scale distributed systems
Responsibilities
- Developing front end website architecture
- Designing user interactions on web pages
- Developing back end website applications
- Creating servers and databases for functionality
- Ensuring cross-platform optimization for mobile phones
- Ensuring responsiveness of applications
- Working alongside graphic designers for web design features
- Seeing through a project from conception to finished product
- Designing and developing APIs
- Meeting both technical and consumer needs
- Staying abreast of developments in web applications and programming languages.
Requirements
- Java 8 and above
- Experiencein databases Mongodb, MySQL, SQL Oracle etc.
- Working knowledge in IOC Container / Spring boot& ORM, Spring Security, AOP JMS.
- Experience in Microservices, Eureka, Zuul, Ribbon would be an added advantage.
- Experience with build tools like Ant, Gradle or Maven and troubleshoot build issues.
- Should have exposure to GIT, Jira etc..
- Develops resealable frameworks/components and POCs based on Product Architecture RoadMap.
- Uses best practices during web services implementations and works with the REST
- Strong analytic problem-solving skills.
- Proactive work ethic.
We are looking for a back end developer with strong foundational knowledge of SQL, microservices architecture and Javascript.
Please don't apply if experience < 2 years || Javascript !=advanced
Responsibilities:
1. Back end ownership and implementation of projects in Node.js
2. Strong knowledge of JS and SQL is critical
3. Knowledge and experince of working on RHEL/Ubutnu servers is an additional bonus
4. Experience in writing large modularised projects
5. Production experience in implementing highly scalable microservices
At Gida, you’ll be developing and contributing to different applications and projects. If you’re the person with the right calibre and mindset, you’ll get opportunities to work on diverse projects and learn new skills.
Hybrid work model - work from home with 1-2 days in office
About Toyota Connected
If you want to change the way the world works, transform the automotive industry and positively impact others on a global scale, then Toyota Connected is the right place for you! Within our collaborative, fast-paced environment we focus on continual improvement and work in a highly iterative way to deliver exceptional value in the form of connected products and services that wow and delight our customers and the world around us.
About the Team
Toyota Connected India is hiring talented engineers at Chennai to use Deep Learning, Computer vision, Big data, high performance cloud-based services and other cutting-edge technologies to transform the customer experience with their vehicle. Come help us re-imagine what mobility can be today and for years to come!
Job Description
Toyota Connected is looking for a Backend Developer who will architect, design, develop and participate in testing and documentation of large-scale, distributed software applications, systems and services. The Labs team is focused on creating products and services for next generation Connected vehicle systems and the team members are required to be creative in solving problems, excited to work in new technology areas and be ready to wear multiple hats to get things done. This is a highly-energized, fast-paced, innovative and collaborative startup environment; therefore, it is essential that not only the skillset, but also the personality matches such an environment.
You are a successful candidate if you:
- Are smart and can demonstrate it.
- Have 3+ years of experience as a developer for web scale products and services
- Have strong experience in Java or Golang (minimum 1 year) and implemented key aspects of an end-to-end solution
- Have expertise in implementing microservices (using tools and technologies for messaging, RPC, containerization, etc)
- Have expertise in design and development using DB (RDBMS, NoSQL) and caching (e.g Redis) solutions, especially in microservices environment
- Have experience with Containerization (Docker, Kubernetes, etc)
- Have Public cloud technology experience in production (Azure, AWS, or Equivalent)
- Have the ability and willingness to manage other developers including mentoring, performance reviews, etc
- Have solved non-functional aspects of like scalability, security, reliability with cutting edge if not bleeding edge technology
- Are good about creating unit tests, performing code reviews, optimizing performance and ensuring standards for maintainability
- You can manage ambiguity and are comfortable being set loose without a lot of direction
- You are confident in expressing your point of view from a position of knowledge and experience. You are also receptive to feedback and open to revising your plans when appropriate
- We think the knowledge acquired earning a degree in Computer Science would be of great value in this position, but if you're smart and have the experience that backs up your abilities, for us, talent trumps degree every time
It will be Nice if you have:
- Some front-end development experience
- Hands-on experience delivering products or solutions that utilized Machine learning, NLP or other forms of AI - with tools such as Scikit-learn, Tensor flow, Keras, Theano / Spacy, NLTK, etc
What is in it for you?
- Top of the line compensation!
- You'll be treated like the professional we know you are and left to manage your own time
- Yearly gym membership reimbursement & Free catered lunches.
- No dress code! We trust you are responsible enough to choose what’s appropriate to wear
- Opportunity to build products that improves the safety and convenience of millions of customers.
Cool office space and awesome benefits
Our Core Values
- Passionate: We are here to build something great, not just for the money. We are always looking to improve the experience of our millions of customers
- Innovative: We experiment with ideas to get to the best solution. Any constraint is a challenge, and we love looking for creative ways to solve them.
- Empathetic: We begin making decisions by looking at the world from the perspective of our customers, teammates, and partners.
- Collaborative: When it comes to people, we think the whole is greater than its parts and that everyone has a role to play in the success!
- Effective: We consistently go beyond, being smart and proactive, to make things the right things happen, not waiting to be told.
What we are looking for
- At-least 3 years of experience of development on backend applications. Full stack experience is a cherry on the top!
- Experience / knowledge of designing robust systems, maintaining & scaling them
- Experience with usage of NoSQL databases like MongoDB & with SQL and RDBMS Systems
- Experience of creating applications with any of the popular frameworks in Python, Java, GoLang, Node
- Experience with JS frontend frameworks like React, Angular, Vue etc is a big plus
- Well versed with versioning systems like git
- Understanding of rest API implementation
Some of the responsibilties you will be taking up are following
- Working on creating performant and fault tolerant systems which are scalable
- Design, build, and maintain high performance, reusable, and reliable codebase
- Effectively work with product to gather requirements, gain deep understanding of use cases and business needs, and translate into design and implementation.
- Maintain code integrity and organization.
- Manage basic devops related to CI/CD
- Creating secure systems
- Lead other junior developers
- Define optimal and minimal architecture to achieve product requirements









