
Experience: 5 TO 8
Location: MUMBAI
Wissen Technology is now hiring for a Java Developer - MUMBAI 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 TO 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.

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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Role & Responsibilities:
- Proven working experience in mobile app development using React Native.
- Extensive experience in native mobile development for both Android and iOS platforms.
- Solid understanding of JavaScript and its core principles including ES6+ syntax.
- Proficiency with React and its ecosystem.
- Experiencing in building pixel-perfect, buttery smooth UIs across both mobile platforms.
- Proficiency and expertise with consuming RESTful APIs and asynchronous programming and knowledge of offline storage.
- Knowledge in creating and publishing APK file to both play store and app store.
- Knowledge of modern authorization mechanisms, such as JSON Web Token and authentication flows like OAuth.
- Knowledge of mobile app development lifecycle and best practices.
- Experience with code versioning tools such as Git.
- Excellent problem-solving and debugging skills.
- Ability to work independently and as part of a team.
- Strong communication and interpersonal skills.
If interested kindly share your updated resume on 82008 31681
- 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 Experience into Microservices , Data structures , Oops , Algorithms, multithreading etc
- 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.
- Experience into High /Low level designing.
- 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.
- Hands-on experience with
- EJS- express.Js,
- MVC, MVVM, full stack MVC,
- GITHUB,
- Rest API.
- Should have strong DB Knowledge.
- Should have good knowledge of Version Control.
- Ability to Re-structure
- Hands-on experience in backend architecture.
- Ability to lead a team.
- Should be a self-starter
- You have 2-5 years of experience using two or more development languages (ASP.NET, JavaScript, Scala, C#, etc.) with experience in Object-Oriented programming and full-stack web application development
- You can write clean, high-quality code in a variety of languages and are also able to spot and improve bad code
- You have experience with Agile and/or Continuous Delivery approaches such as Continuous Integration, TDD, Infrastructure as Code, etc.
- Experience with developing web applications based on ReactJS
- Hands on experience in setting up automated build pipelines based on Jenkins, Gradle, MSBuild, Maven etc.
- Bonus points if you have knowledge of cloud technologies such as AWS/Azure/GCP, Docker and Kubernetes
- Experience with atleast one RDBMS sql-server or postgress having good sql skills
- You will champion best practices like writing clean and reusable code using practices like Test Driven Development, SOLID principles, OO design, and pair programming
- You will partner with developers from other cross-functional teams advocating devops culture
- Experience with building REST APIs and asynchronous messaging systems
- You will work in collaborative, product-focused teams to build innovative customer experiences
- Take ownership and accountability beyond individual deliverables, always pushing the envelope in order to deliver awesome results for our clients
Should be in chennai location
Should be able to develop
Responsibilities
- Help define Technical Roadmap and own the entire product delivery end to end
- Work very closely with various business stakeholders to drive the execution of multiple business plans and technologies
- Improve, optimize and identify opportunities for efficient software development processes
- Hire, Develop and Retain a strong team of engineers
- Keep abreast of the changes in the industry and champion new technologies and development processes within the team
- Thinking backwards from a customer POV and relentlessly pursuing customer's cause in tech and product decisions
Apply If You have:
- Graduation/Post Graduation degree in Computer Science (IITs, IIITs and NITs preferred)
- 6-10 years of strong experience in JAVA(Spring/Hibernate/JPA/REST), JavaScript, NodeJS with good exposure to MySQL
- Experience with AWS, Microservices, Caching, Performance Optimization, Nginx, Solr, Redis, Redshift
- Experience working with agile teams and making rapid decisions in dynamic and disruptive environment
- 2+ years of leading and managing a team consisting of backend, frontend and QA.
- Hands on writing and reviewing code
- Exceptional design and architectural skills
- Strong communication skills
- High motivation to work in a fast paced, dynamic, collaborative team environment
Job Description:
Mandatory Skills: Java, J2ee, spring, hibernate, spring mvc.
Preferred: Restful, microservices, spring boot.
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Someone from the product based/Fintech
Immediate Joining or Notice Upto 30 Days
WFH
Roles & Responsibilities:
● Invent, design and build software that is stable and performant
● Primary role will be quality and timely delivery of the application/ feature/ module your team
will be working on
● Adopt and execute good design philosophy and code writing practices
● Ensure the code goes through rigorous tests and quality checks before deployment
● Work with other software engineers and database engineers to set excellent development
practices and deliver innovative changes in new and existing products
● Be hands-on technical, thus, leading by example using web, mobile and database
technologies
● Work on project ideas with customers, stakeholders and peers
● Be actively involved in code review process, design discussions, team planning
Minimum Qualifications:
● Bachelor's degree in Computer Science, Software Engineering, or a related technical
discipline
● 3-6 Years of Experience
● Expertise in software design and development
● Proficiency with at least one Object Oriented language (e.g. Java)
● Have knowledge about Computer Science fundamentals in object-oriented design, data
structures, algorithm design, problem-solving, and complexity analysis
● A strong track record of project delivery for large, cross-functional projects
● Experience with building high-performance, highly available and scalable distributed systems
● Experience with API Design, ability to architect and implement an intuitive customer and
third-party integration story
● Ability to think and analyse both breadthwise (client, server, DB, control flow) and depth-wise
(threads, sessions, space-time complexity) while designing and implementing services

We are hiring for Python Developer for one of the leading company in Cloud & Blockchain communication
Job Description
• Develop new API features and maintain existing features
• Write reusable microservices and libraries for future use
• Optimize backend services for scalability
• Build products for our customers on top of our APIs
• Build internal tools and automate repetitive operations
Desired Profile
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Exp- 2-5 Years (preferably in Product based company)
• Good understanding of various backend components and microservice architecture
• Good understanding of at least one SQL and Non-SQL datastore
• Strong understanding of data structures and algorithms
• Basic understanding of frontend web technologies like ajax
• Proficient understanding of Git and version control
• Familiarity with a Unix-like operating system is a must
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About the Role
If you are interested in developing the future architecture of Uber's Rider stack by building its core building blocks, join the Rider Backend Platform team. We build backend architectural components and frameworks comprising of services, libraries, state storage and other building blocks that aim to optimise the core Rider flow and foundational features that are shared among all rider products, including but not limited to, Uber Rider app, UberLite, m.uber.com, etc.
What You'll Do
- Work with Rider product engineering teams to identify, design and build solutions that help scale Rider services and platforms.
- Drive adoption of best practices in code health, testing, and maintainability
- Analyze and decompose complex software systems and collaborate with cross-functional teams to influence design for scalability and testability
- Work with smart and motivated teammates in a fast-paced, collaborative environment.
- Build elegant backend platform components for high throughput and low latency distributed systems.
- Solve challenging problems with cutting edge design and algorithms.
What You'll Need
- 4+ years Strong meaningful Individual contributor experience as a software engineer
- Design: Knowledge of data structures and an eye for design. You can discuss the tradeoff between design choices, both on a theoretical level and on an applied level.
- Strong coding/debugging abilities: You have advanced knowledge of at least one programming language, and are happy to learn more. Our core languages are Go and Java.
- Fast learner: We're looking for software engineers who thrive on learning new technologies and don't believe in one-size-fits-all solutions. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment.
- A team player: You believe that you can achieve more on a team -- that the whole is greater than the sum of its parts. You rely on others' candid feedback for continuous improvement.
-
Business acumen: You understand requirements beyond the written word. Whether you're working on an API used by other developers, an internal tool consumed by our operation teams, or a feature used by millions of customers, your attention to details leads to a delightful user experience.
About the Team: **Rider Backend Platform**
Builds the core building blocks needed to power the rider experiences on the different Rider facing apps including the core Uber app, Uber Lite, Web as we move on to become the preferred transportation platform for millions of riders all over the world.
Uber
At Uber, we ignite opportunity by setting the world in motion. We take on big problems to help drivers, riders, delivery partners, and eaters get moving in more than 600 cities around the world.
We welcome people from all backgrounds who seek the opportunity to help build a future where everyone and everything can move independently. If you have the curiosity, passion, and collaborative spirit, work with us, and let's move the world forward, together.






