
ompany Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Job Title: Java Developer
Experience range:- 3-6 Years
Location:- Chennai
Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)
· Strong written/verbal communication skills
· Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
- Good experience in Spring boot.
- Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
- Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
- Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
- Expert level understanding of Object-Oriented Concepts and Data Structures
- Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.

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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Role & Responsibilities
As a Software Development Engineer - 3, Backend Engineer at , you will play a critical role in architecting, designing, and delivering robust backend systems that power our platform. You will lead by example, driving technical excellence and mentoring peers while solving complex engineering problems. This position offers the opportunity to work with a highly motivated team in a fast-paced and innovative environment.
Key Responsibilities:
Technical Leadership-
- Design and develop highly scalable, fault-tolerant, and maintainable backend systems using Java and related frameworks.
- Provide technical guidance and mentorship to junior developers, fostering a culture of learning and growth.
- Review code and ensure adherence to best practices, coding standards, and security guidelines.
System Architecture and Design-
- Collaborate with cross-functional teams, including product managers and frontend engineers, to translate business requirements into efficient technical solutions.
- Own the architecture of core modules and contribute to overall platform scalability and reliability.
- Advocate for and implement microservices architecture, ensuring modularity and reusability.
Problem Solving and Optimization-
- Analyze and resolve complex system issues, ensuring high availability and performance of the platform.
- Optimize database queries and design scalable data storage solutions.
- Implement robust logging, monitoring, and alerting systems to proactively identify and mitigate issues.
Innovation and Continuous Improvement-
- Stay updated on emerging backend technologies and incorporate relevant advancements into our systems.
- Identify and drive initiatives to improve codebase quality, deployment processes, and team productivity.
- Contribute to and advocate for a DevOps culture, supporting CI/CD pipelines and automated testing.
Collaboration and Communication-
- Act as a liaison between the backend team and other technical and non-technical teams, ensuring smooth communication and alignment.
- Document system designs, APIs, and workflows to maintain clarity and knowledge transfer across the team.
Ideal Candidate
- Strong Java Backend Engineer.
- Mandatory (Experience 1): Must have 5+ years of backend development with strong focus on Java (Spring / Spring Boot)
- Mandatory (Experience 2): Must have been SDE-2 for at least 2.5 years
- Mandatory (Tech skill 1) : Hands-on experience with RESTful APIs and microservices architecture
- Mandatory (Tech skill 2): Strong understanding of distributed systems, multithreading, and async programming
- Mandatory (Tech skill 3): Experience with relational and NoSQL databases
- Mandatory (Tech skill 4) : Exposure to Kafka/RabbitMQ and Redis/Memcached
- Mandatory (Tech skill 5): Experience with AWS / GCP / Azure, Docker, and Kubernetes
- Mandatory (Tech skill 6) : Familiar with CI/CD pipelines and modern DevOps practices
- Mandatory (Company): Product companies (B2B SAAS preferred)
- Mandatory (Stability): Must have stayed for atleast 2 years with each of the previous companies
- Mandatory (Education): B.Tech in computer science from Tier 1, Tier 2 colleges
● Design and deliver scalable web services, APIs, and backend data modules.
Understand requirements and develop reusable code using design patterns &
component architecture and write unit test cases.
● Collaborate with product management and engineering teams to elicit &
understand their requirements & challenges and develop potential solutions
● Stay current with the latest tools, technology ideas, and methodologies; share
knowledge by clearly articulating results and ideas to key decision-makers.
Requirements
● 3-6 years of strong experience in developing highly scalable backend and
middle tier. BS/MS in Computer Science or equivalent from premier institutes
Strong in problem-solving, data structures, and algorithm design. Strong
experience in system architecture, Web services development, highly scalable
distributed applications.
● Good in large data systems such as Hadoop, Map Reduce, NoSQL Cassandra, etc.. Fluency in Java, Spring, Hibernate, J2EE, REST Services Ability to deliver code
quickly from given scenarios in a fast-paced start-up environment.
● Attention to detail. Strong communication and collaboration skills.
• Participation in the requirements analysis, design, development and testing of applications.
• The candidate is expected to write code himself/herself.
• The candidate is expected to write high level code, code review, unit testing and deployment.
• Practical application of design principles with a focus on the user experience, usability, template
designs, cross browser issues and client server concepts.
• Contributes to the development of project estimates, scheduling, and deliverables.
• Works closely with QA team to determine testing requirements to ensure full coverage and best
quality of product.
• There is also the opportunity to mentor and guide junior team members in excelling their jobs.
Job Specifications
• BE/B. Tech. Computer Science or MCA from a reputed University.
• 6+ Years of experience in software development, with emphasis on JAVA/J2EE Server side
programming.
• Hands on experience in Core Java, Multithreading, RMI, Socket programing, JDBC, NIO,
webservices and Design patterns.
• Should have Knowledge of distributed system, distributed caching, messaging frameworks, ESB
etc.
• Knowledge of Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database is
essential.
• Additionally, knowledge of HBase, Hadoop and Hive are desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Should have experience as a participant in Agile methodologies.
• Should have excellent written and verbal communication skills and presentation skills.
• This is not a Fullstack requirement, we are purely looking out for Backend resources
SENIOR SOFTWARE DEVELOPER (BACKEND DEVELOPMENT):
We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade web applications.
You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Responsibilities
• Java developer responsibilities include designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
• 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
Requirements
• BS/MS degree in Computer Science, Engineering or a related subject from renowned (IITs, NITs, BITS etc) colleges
• Excellent aptitude, algorithmic and puzzle solving skills
• Proven hands-on Software Development experience
• Proven working experience of 2+ years 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, Multi-Threading etc)
• Good knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in the Spring Framework
• Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT,
Spring MVC)
• Experience with agile development
Requirements
- 2-5 years of experience as a back-end developer
- Expertise with Java 1.8 and React JS
- Understanding of OOPS concepts, Design Principles, and implementations of different types of Design Patterns.
- Should have a strong acumen in Data Structures, Algorithms, problem-solving.
- Experience in Microservices
- Extensive experience in developing Web Services APIs using RESTful API design
- Comfortable writing Unit Test Cases
- Good to have experience/knowledge of
- Docker,
- Scala,
- Python, and
- AWS and other Cloud platforms
- Able to connect the dots between code and business value
Responsibilities
- Engage in high-level conversations about business strategy and the role tech plays in it
- Write well-designed, testable, and efficient code that powers our application
- Write specs and do planning for everything we build
- Conduct application analysis, testing, and debugging
- Diligently document code to keep it clean and transparent
- Ensure cross-browser and device compatibility
You Are
- You believe it’s always on you to make sure anything you do is a success.
- You have the ability to make quick and effective decisions.
- In love with a challenge. You revel in solving problems and want a job that pushes you out of your comfort zone.
- Open to change. You’re inspired by the endless ways in which everything we do can always be improved.
- 2+ years of professional software development experience
- 2+ years of object-oriented Java / 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-oriented Java
- 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
Job Role :
Quinbay is an upstart digital platforms and products company with a core focus on disrupting traditional markets and business models with the strength of our innovation driven digital value. We harness the power of our open innovation culture, our unique talent selection approach, the skills and expertise of our people across various industries, domains and technologies and a unique blend of analytics driven strategies for creating future digital platforms.
OPPORTUNITIES :
- Pursue opportunities in and learning/growth interests in Mobile, product development, product management, Analytics, Machine learning, UI/UX design, DevOps, Automation, Drones, bots and Java / open source development frameworks and methodologies - on a variety of domains like eCommerce, Logistics and fulfilment, Mcommerce and a whole lot others.
- Opportunities to be part of fastest growing eCommerce platforms in exciting application areas like core commerce, supply chain, logistics and fulfilment, merchant, mobile commerce, analytics, automation and a lot more for the global markets positioned for Asia.
Job Description
- Contribute in all phases of the development lifecycle
- Understand/learn the existing applications
- Provide support on IT Applications to customers
- Prepare and produce build release
- Strive for continuous improvement, developing well designed and efficient code
- Keep up with changes in technology and propose solutions
- Ensure defect free deliveries by actively participating in quality assurance
Education & Job Qualification
- Good academic qualifications
- Experience in developing web applications using Java, Spring, Hibernate, DWR, JSP
- Knowledge in Oracle Database concepts
- Sound knowledge in the following is a must
o Hibernate
o Spring
o Oracle & MongoDb
o HTML & CSS
o Javascript
o Jquery
o Angular 4
o Node JS
Knowledge of Japer Reports will be an added advantage - Good communication skills and be a good listener
- Problem solving skills
- Willingness to learn and do all development activities including quality assurance
- Team player
About Recko:
Recko was founded in 2017 to organise the world’s transactional information and provide intelligent applications to finance and product teams to make sense of the vast amount of data available. With the proliferation of digital transactions over the past two decades, Enterprises, Banks and Financial institutions are finding it difficult to keep a track on the money flowing across their systems. We are building products which enable them to handle and monitor massive volumes of transactional data without writing a single line of code and ensure the right amounts are flowing between the right beneficiaries, with the right deductions at the right time. Over the last few months, we have grown to a point where we are processing more than 25 million transactions monthly for our customers.
Recko is a Series A funded startup, backed by marquee investors like Vertex Ventures, Prime Venture Partners and Locus Ventures. Traditionally enterprise software is always built around functionality. We are reimagining enterprise software to be built around the user. We believe software is an extension of one’s capability, and it should be delightful and fun to use.
Working at Recko:
We believe that great companies are built by amazing people. At Recko, We are a group of young Engineers, Product Managers, Analysts and Business folks who are on a mission to bring consumer tech DNA to enterprise fintech applications. The current team at Recko is 50 members strong with stellar experience across fintech, e-commerce, digital domains at companies like Flipkart, PhonePe, Ola Money, Belong, Razorpay, Grofers, Jio, Oracle etc. We are growing aggressively across verticals.
About the Role:
What are we looking for:
1. 2+ years of experience with Java MVC frameworks like Spring / Dropwizard / Play and with
MySQL / Oracle / PostgreSQL.
2. Experience building at least one application from scratch.
3. Understanding of at least one test frameworks and basic system administration.
4. Experience with cache store / message broker like Redis / RabbitMQ / Kafka.
5. Good to have: Experience with NoSQL databases like Cassandra, MongoDb, Neo4j, ElasticSearch. etc and Understanding of different concurrency models used in Akka, node.js, Go, RxJava etc
6. Interest in learning new languages / framework as needed.
7. A growth mindset and passionate about building things from the ground up and most
importantly, you should be fun to work with.
As a backend developer at Recko, you will:
1. Design and implement microservices with high reliability and scalability.
2. Be involved and participate in the overall application lifecycle.
3. Define and communicate technical and design requirements.
4. Learn about new technologies and incorporate them.
5. Improve engineering standards, tooling, and processes.
6. Collaborate with multi-disciplinary team of designers, developers and system administrators.







