
Job Title: Java Developer
Location: Chennai
Experience: 3+ Years
Employment Type: Full-time
Job Description:
We are looking for a skilled and passionate Java Developer with a strong foundation in Core Java and Object-Oriented Programming concepts. The ideal candidate should possess excellent communication skills and have hands-on experience with multi-threading, collections, databases, and backend development frameworks like Spring and Spring Boot. Exposure to cloud platforms and frontend technologies is a plus.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications using Core Java and Spring Boot.
- Apply strong knowledge of Java Collections Framework and concurrent programming techniques including ExecutorService, ForkJoinPool, and other threading mechanisms.
- Optimize JVM performance and memory usage.
- Participate in all phases of the software development lifecycle: requirement gathering, design, development, testing, and deployment.
- Write clean, maintainable code following best practices, coding standards, and design patterns.
- Conduct code reviews, unit testing, and participate in peer programming.
- Collaborate effectively with team members and stakeholders to deliver high-quality solutions.
- Interact with databases like Oracle, Sybase, or SQL Server, with a strong understanding of views, triggers, indexing, and stored procedures.
Must-Have Skills:
- 3+ years of hands-on experience in Core Java
- Strong understanding of Collections, Multithreading, and Concurrency
- Proficient in Spring Framework, especially Spring Boot
- Deep understanding of Object-Oriented Design and Data Structures
- Strong experience in RDBMS (Sybase/Oracle/SQL Server) including indexing, replication, CLOB/BLOB types, views, and procedures
- Excellent written and verbal communication skills
Good to Have:
- Exposure to Microservices architecture
- Familiarity with NoSQL databases
- Knowledge or willingness to work on frontend technologies
- Experience working with public cloud platforms (AWS, Azure, GCP)
Soft Skills:
- Strong analytical and problem-solving skills
- Team player with a proactive attitude
- Ability to work independently and in a fast-paced environment
If you are passionate about Java development and want to work on cutting-edge technologies in a collaborative environment, we would love to hear from you.
Let me know if you want this converted into a company-branded format or with CTC/NP details added.

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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Requirements
- Bachelors/Masters in Computer Science or a related field
- 5-8 years of relevant experience
- Proven track record of Team Leading/Mentoring a team successfully.
- Experience with web technologies and microservices architecture both frontend and backend.
- Java, Spring framework, hibernate
- MySQL, Mongo, Solr, Redis,
- Kubernetes, Docker
- Strong understanding of Object-Oriented Programming, Data Structures, and Algorithms.
- Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
- Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story
- Ability to think and analyze both breadth-wise (client, server, DB, control flow) and depth-wise (threads, sessions, space-time complexity) while designing and implementing services
- Exceptional design and architectural skills
- Experience of cloud providers/platforms like GCP and AWS
Roles & Responsibilities
- Develop new user-facing features.
- Work alongside the product to understand our requirements, and design, develop and iterate, think through the complex architecture.
- Writing clean, reusable, high-quality, high-performance, maintainable code.
- Encourage innovation and efficiency improvements to ensure processes are productive.
- Ensure the training and mentoring of the team members.
- Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed.
- Research and apply new technologies, techniques, and best practices.
- Team mentorship and leadership.
B.Tech./ BE - Computer, IT, Electronics only
Requirements:
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Skills:
- 3+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
- Java
Agile and Kafka
Microservices
Springboot
NoSQL/MongoDB
Scrum
Great opportunity to work in Roots Innovations Pvt.ltd., We simplify the RPA (Robotic Process Automation) platform with AI-powered Bots to manage business processes & compliance for all types of industry sectors.
Educational Qualification: BE/B.Tech/BCA/BCS/MSC/MCA/MCS/M.Tech(Certification course will be Advantage)
Experience - 4 to 10 years
Job Description:
· Implement a robust set of services and APIs to power the back-end application
· Optimize application for maximum speed and scalability
· Implementation of security and data protection
· Follow and understand architecture design and implementation on
development, testing, implementation, and documentation.
· Conduct reviews and conduct team training on the complex features of NodeJS.
· Analyze business/functional requirements and translate them into
concrete tasks
· Manage Product releases
Skill Set Required:
· Experienced in NodeJs or any NodeJS frameworks
· Experienced & Good knowledge of Relational and NoSQL databases (MongoDB)
· Exposure to Cloud Environments like AWS, MS Azure or Google Cloud
· Knowledge of an interest in Agile Methodologies, such as Extreme Programming (XP) and Scrum
· Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)
• Proficient in software development from inception to production releases using modern
programming languages ( Preferably Java, NodeJS, and Scala)
• Hands-on experience with cloud infrastructure, solution architecture on AWS or Azure
• Prior experience working as a Full-stack engineer building cloud-native, SaaS products.
• Expertise in programming and designing circuit breakers, the localized impact of failures,
service mesh, event sourcing, distributed data transactions, and eventual consistency.
• Proficient in designing and developing SAAS on Microservices architecture
• Proficient in building Fault tolerance, High availability, and Autoscaling for microservices
• Proficient in Data Modelling for distributed computing
• Deeps Hands-on experience on Microservices in Spring Boot and in large scale projects in
Spring Framework
• Fluency in cloud-native solution architecture; designing HA and Fault-Tolerant deployment
topologies for API Gateway, Kafka, and Spark clusters on cloud.
• Fluency in AWS, Azure, Serverless Functions in AWS or Azure and in Docker and Kubernetes
• Avid practitioner and coach of Test-Driven Development
• Deep understanding of modeling real-world scheduling and process problems into algorithms
running on memory and compute efficient data structures.
• We value Polyglot engineers a lot, hence experience in programming in more than one
language is a must, preferably one of Groovy, Scala, Python or Kotlin
• Excellent communication skills and collaboration temperament
• Articulation of technical matters to Business Stakeholders, and the ability to translate business
concerns into technical specifications.
• Proficiency in working with cross-functional team on refining initiatives to objective features.
Good To Have:
• Hands-on experience with Continuous Delivery and DevOps automation
• SRE and Observability implementation experience
• Refactoring Legacy products to microservices
Skills required:
Expertise in core java
Strong skills in algorithms, data structures and object-oriented programming
Strong skills in designing scalable web systems
Experience in working on REST services and libraries like spring and hibernate
Experience in writing complex queries and understanding of database concepts and configurations (MySQL)
Understanding of design patterns.
Experience in micro services architecture will be a plus.
Good to have:
Experience in third party integrations.
Experience - 3- years in Java Backend integration
Position Responsibilities:
1. Design, implementation, and deployment of applications
2. Expert knowledge in performance, scalability, enterprise system architecture, and engineering best practices.
3. Functionally decompose complex problems into simple, straight-forward solutions.
4. Work extensively with cross-functional teams across.
5. Work with the business team and project managers to convert functional requirements into detailed technical specifications.
6. The ideal candidate will be a leader, builder, and operator. He/she should be able to operate in a very fast-paced environment where time to hit the market is supercritical.
Desired Candidate profile:
1. A Bachelor's/Master’s degree in Computer Science or equivalent combination of technical education from Elite College or institution and work experience.
2. 4+ years of Software Development experience.
3. Excellent object-oriented design and coding skills (Java, C++ on a UNIX or Linux platform).
4. Very strong software development background including design patterns, data structures, test-driven development.
5. Ability to design and implement systems end to end on your own while maintaining highest coding standards.
6. Excellent knowledge of design patterns and ability to reflect it in their code.
7. Ability to lead projects and mentor junior engineers on the same.
8. Mandatory work experience in skills sets: REST API, JDBC, RDBMS (PostgreSQL, MySQL)
9. Solid Experience with distributed (multi-tiered) systems, algorithms, and relational databases.
10. Software development experience in Servlet, JSP, Spring, AWS, S3, SQS, building web services and highly scalable applications or Google Cloud Suite.
11. Excellent verbal and written communication skills.
About us:
Equal parts creative agency, engineering firm, and consultancy, Grappus has a reputation of doing things differently. We work with brands big and small, far and wide, helping them understand, prototype and deploy a broad range of custom tech. We value design and we cringe at bad UX. Each project is a clean slate, we don’t have frameworks, or any pre-made formulas. We’re not here to just grow big, make money and win awards. We’re here to crack the process of building truly innovative products from scratch. Products that make people say ‘damn’.
People at Grappus usually experience a highly accelerated career growth well beyond the narrow constraints of their ‘job description’. Here, the growth ladder is tailored to you. It operates exactly as fast as you can manage to grow. We think it's a waste when smart people are unable to make an impact. Our aim is to unleash your potential by giving you massive challenges and the freedom to solve them.
We’re in a fluid world, where we don’t know what technologies we’ll use next, or the projects we’ll work on. We’re actively searching for ways to shine a light on our blind spots, whether it is in the products we want to build, the problems we like to solve, or the company culture we try to create. That’s what makes life at Grappus so exciting. Grappus is an ongoing experiment and you are a part of it. We'll be a different company a few years from now because you are going to change it for the better. We can’t wait to see where you take us
Learn more about us: https://grappus.com/">https://grappus.com/
About the role:
We are seeking a Senior Java Developer who has a knack for coming up with creative solutions to unique problems, planning development cycles and writing technical documentation while leading a team of developers. You can get in where needed to write clean, reusable, and performant code, with creative sensibilities to push projects towards perfection. You should have good time management skills and be able to work both autonomously and collaboratively with a cross-discipline team of product managers, strategists, UX designers, art directors, and developers. Most importantly, you have an eye for detail and the ability to make beautiful designs come to life through code.
What we’d like to see:
- Ability to write elegant and readable code
- Excellent problem solving skills and love technical challenges
- Comfortable working in a team-oriented and collaborative environment
- Strong understanding of Agile and Lean software development processes and practices
- Stays plugged into emerging technologies/industry trends and applies them proactively
- Knowledge of software best practices, like test driven development and continuous integration
Must Have:
- BE/BTech in Computer Science or a related field or equivalent practical experience
- 2+ years of software development experience including deep, hands on experience in building back end applications using Java and Spring ecosystem
- Strong command over core Java:
- Understands the application of java best practices including logging & exception handling
- Familiar with the Java Concurrency model
- Understands Java collections, generics and java 8 based functional programming features
- Has extensively used the Spring ecosystem:
- Spring Boot
- HTTP/REST API development
- Spring Data (JPA)
- ORM tools like Hibernate (can fine tune mappings for performance)
- Unit and integration testing facilities of Spring Boot
- Experience coaching and mentoring junior developers
- Aggressive problem diagnosis and creative problem solving skills and client handling skills
- Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Implemented CI/CD in any of the projects done and experience with Test Driven Development
Nice to Have:
- Understanding of API Development best practices
- Knowledge of Kubernetes/Docker and Devops
- Some or all of these AWS services: EC2/ECS; lambda; SQS/SNS; API Gateway, Cognito; Elastic Search
- Has contributed to the development or enhancement of CI/CD pipelines in a previous project
- Contributed in the creation of end-end automation tests (functional or non-functional)
- Has designed relational databases; conversant with SQL
- Personal projects or contributions to the open source community
- Strong organizational skills to juggle multiple tasks within the constraints of timelines
- Team player (those great personality types that people love to work with)
- Great communication skills
Company profile
We are the pioneering player in the FinTech industry in India in the institutional credit space. We have created a one of a kind online marketplace for institutional credit ‘CredAvenue’, bringing together issuers and lenders, while also participating in the marketplace through their own balance sheet. Within a short span of two years, CredAvenue has gained immense traction and boasts of multiple clients across sectors, 120+ investors across multiple segments and a high volume of credit deal closures. To read about the latest numbers we have clocked, please visit http://www.credavenue.com">www.credavenue.com.
We are backed by two of the leading global Private Equity firms and have also been successful in attracting high quality talent from some of the leading companies and universities globally. With the fundamentals in place, we are now gearing up for our next phase of high growth, and we are further building up our team to take the company to the next level.
Primary Responsibilities
- Responsible for full software life-cycle, system design and development of front-end & back-end systems
- Writing high-quality code, participating in code reviews, designing/architecting systems of varying complexity and scope
- Identify libraries and technologies worth experimentation
- Build innovative solutions from scratch and liaise with architects and engineers to build solutions
- Mentoring other team members
Required Skill
- Degree in Computer Science or relevant experience
- 2-7 years of relevant hands-on software engineering experience doing software design and development
- Proven experience of working on back-end web frameworks like RoR (preferable) or Python/Django or Node.js
- Good command over at least one JavaScript frameworks like React.js, Vue.js or Angular
- Excellent understanding of relational database structures, having knowledge of unstructured databases (NoSQL) will be an added advantage
- Expertise in object-oriented design, unit testing, integration testing, data structures, algorithms, scalable APIs, etc.
- Knowledge of working on cloud technologies and exposure of AWS services (EC2, RDS, S3, etc)
- Work in a fast-paced environment and make pragmatic engineering decisions in a short amount of time
- Experience with Agile Development and Scrum methodologies.
Work Environment Details
- An opportunity to play a formative role in an ambitious financial services marketplace spanning investment banking, debt capital markets, institutional finance, retail lending and asset management
- A journey that will challenge and reward you in a manner few others will








