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Java Developer – Job Description Wissen Technology is now hiring for a 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. - 4 to 7 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 Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ 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 offers 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. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

 Experience in Core Java, Spring Boot. 

• Experience in microservices. 

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns. 

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications. 

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2 

• Good knowledge of multi-threading 

• Basic working knowledge of Unix/Linux 

• Excellent problem solving and coding skills in Java 

• Strong interpersonal, communication and analytical skills. 

• Should be able to express their design ideas and thoughts

Java Developer – Backend (Spring Boot + WebFlux)

Company Overview

Dive into the galaxy of innovative possibilities and unfold the future with Pattem Digital. We are a leading software product development company specializing in delivering 100+ services across frontend, backend, CMS, and cutting-edge technologies. With a global presence and proven track record, we help businesses scale through agile and efficient software solutions.

Position Overview

We are looking for a skilled Java Backend Developer with strong expertise in Core Java, Spring Boot, and Spring WebFlux. The ideal candidate will be responsible for building scalable backend systems, developing reactive and RESTful APIs, and contributing to high-performance applications.

📍 Location: Whitefield, Bangalore (Onsite – 5 Days/Week)

📅 Experience: 5–6 Years

Key Responsibilities

● Develop and maintain backend services using Java, Spring Boot, and Spring WebFlux

● Design and implement RESTful and reactive APIs for scalable applications

● Work with databases (SQL/NoSQL – MongoDB preferred)

● Implement multithreading, concurrency, and reactive programming for performance optimization

● Collaborate with frontend teams, QA, and product managers

● Debug, troubleshoot, and resolve production issues

● Write clean, maintainable, and efficient code

● Participate in code reviews and maintain coding standards

● Ensure application performance, scalability, and security

Required Qualifications

Technical Skills

● Strong hands-on experience in Core Java (OOPs, Collections, Multithreading)

● Experience with Spring Boot, Spring MVC, and Spring WebFlux

● Good understanding of Microservices architecture

● Experience with MongoDB / SQL databases

● Knowledge of Java Streams, Exception Handling, Concurrency, and Reactive Programming

● Familiarity with Linux environment

● Experience with Git, Maven, CI/CD pipelines

● Understanding of API design, reactive systems, and system architecture

Experience & Education

● 5–6 years of experience in backend development

● Bachelor’s degree in Computer Science or related field

Soft Skills

● Strong problem-solving and analytical skills

● Good communication and teamwork abilities

● Ability to work in a fast-paced environment

● Ownership mindset and attention to detail

Preferred Qualifications

● Experience with Kafka or event-driven architecture

● Exposure to AWS or cloud platforms

● Experience working in Reactive systems / high-throughput applications

● Experience working in Agile environments

About Klevu:

Klevu is a discovery experience suite that revolutionises online shopping. It provides a range of SaaS based solutions, that are deep rooted in AI-ML technology and delivered via cloud for online retailers. Klevu is a global Finnish company that prides in diversity, great team, excellent partner network and global customer footprint. Learn more from www.klevu.com

Experience: 5+ years

Location: Ahmedabad, Gujarat

Responsibilities:

• Build, scale and maintain various services on the Klevu platform
• Design and develop solutions for business needs on the Klevu platform

Must have skills:

• 4+ years on experience with Java
• Experience in Web application development on Spring framework
• Experience working with database technologies – RDBMS or NoSQL
• Ability to communicate effectively within and outside the engineering team
• Familiar with agile software development process

Nice to haves:

• Experience in Hibernate, MySql, Redis, ActiveMQ or Kafka
• Experience in UI Frameworks like Jquery, React, Angular or equivalent
• Experience in REST API development
• Experience in debugging issues and checking production logs
• Experience working in eCommerce and/or SAAS startups
• Experience working with microservices architecture

What we offer:

• Being part of one of the most exciting search technology company from Nordics with global footprints
• Work with a team in 3 continents (North America, Europe, Asia)
• Excellent work culture, hands-on, result oriented
• Good salary and flexible hours

Neptune Ubicom Pvt. Ltd. is looking for passionate and talented Java Developers to be a part of our engineering team. We are hiring for Java Developer inspiring to develop into Full-Stack Developer. If you love building high quality, user-friendly web-applications, then you have our attention!

Your day with us!

As a Java Developer, you will design, create and analyse solutions to various project tasks daily. Your day involves brainstorming and knowledge sharing amongst your teammates. You learn and develop your skills by creating unique solutions daily.

Here are a few of your responsibilities?

End to End Software Design which will involve work on Database, working on Back-end and Front-end, documentation, and testing.

• You will be a part of a functional Java developing team
• You will be assigned a project based on your choice and skill set
• You will get the opportunity to work on a complete product development cycle
• You will be involved in the daily scrum and functional discussion meetings with your German counterparts 
• You will be thoroughly guided and supported to develop your technical skillset.

Technologies you get to use:

• Java+Spring (Back-end)
• TypeScript+Angular (Front-end)
• Git, Jira, Confluence, Maven, etc.
• And many more tools that you'll learn on the job!

What makes you a good fit?

• You have a minimum of 2 years of hands-on experience as a Java Developer. 
• You are someone who wants to explore new horizons for their career and develop into a Full Stack role.
• You possess a Bachelor’s Degree in Engineering with specialisation in CS/IT or equivalent
• You have excellent knowledge of Java
• You have great programming skills
• You have demonstrated a passion for coding through various projects, challenges or extra-curricular activities. Having a programmer portfolio is a major plus
• You have the potential to develop a keen understanding of our culture. And to imbibe it, and be the ambassador of our culture.

Why should you join us?

• Embark on an exciting journey with us! 
• Enjoy being part of a great team of engineers, creating innovative new products
• Learn and acquire knowledge of different technologies
• Participate or/and take a lead on various stages of the on-going projects
• Develop your interpersonal skills every day with new challenges
• We do not believe in the crisp cotton shirt is the only productive work attire. Here at NUPL, you dress smart and decent and we will be good to go
• We follow a strict '5 Day' work week policy. Those weekends are for family, friends, and relaxation
• We offer a competitive leave package, a work from home facility, and a flexible work hour policy to help you attain a great work-life balance
• We offer an environment where you can make suggestions and develop your ideas with the team. In a flat hierarchy, you will have your ideas and opinions heard
• We all know how hard it is to focus on work when craving for food, we have an in house open pantry just for this!
• We offer various opportunities to widen your horizon of knowledge and skills. We also offer support for various courses and certifications
• We provide a competitive benefits package.

Interested to know more about us?

We are a multinational IT Company with our offices based in Germany and India. To know more about us and our work culture check out the link below:

https://www.linkedin.com/company/13597515" target="_blank">www.linkedin.com/neptune-ubi/

Joining: ASAP! ; )

Compensation: We offer a competitive package as per the industry standards. The final package is dependent on one’s performance during the recruitment process. We wish all the best for all the aspiring Full Stack Developers applying for this position!

1. Design and develop features using Java, Spring, and Hibernate
2. Ability to design database schema, develop views and stored procedures
3. Maintain existing software systems by identifying and

Correcting software defects.

1. Review and analyse business requirements and provide technical software defects.

Key Skills:

1. Good understanding of algorithms, data structures & design patterns
2. Thorough understanding of core Java, Spring framework
3. Experience with Spring Boot to bootstrap applications
4. Good understanding and working experience with RESTful web services
5. Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools such as Git, etc.
6. Self-starter who can think outside of the box, and come up with a solution to resolve and mitigate complex problems
7. Experience working in an Agile development environment using methodologies like Scrum and tools like JIRA, Confluence, etc Experience.Comfortable with MYSQL,Mongodb

Role & Responsibilities:

1. Design and develop features using Java, Spring, and Hibernate
2. Ability to design database schema, develop views and stored procedures
3. Maintain existing software systems by identifying and correcting software defects
4. Review and analyze business requirements and provide technical feasibility and estimates
5. 2-4 years of work experience developing Java-based backend applications. Around 1 year of work experience e using Spring Boot, Spring Cloud and Microservices.

Backend Developer

Role : Backend Developer

Department : Technology Team

Experience : 2 - 3 Years of working experience in Backend

Experience in a related position from Gaming Industry would be preferred 

Location : South Delhi; 5 Day Working

Qualification : Bachelor’s degree in Technology

Major Skills : Java, NodeJs, Microservices, Data Structures, etc

Ideal Candidate Requirements :

• Experience in development of Java and NodeJs based applications.
• Experience in building microservices from scratch to production level.
• Strong experience in Core Java and MultiThreading
• Good Knowledge of Data Structures
• Worked on Oracle, REDIS and DYNOMITE
• Good Knowledge of Telecom Protocol SIP

Ideal Candidate Skills Requirements :-

• Distributed systems - Microservices - Algorithm design, System Design
• Performance Engineering, Scalability and Architecture
• Gaming Models, Matching and Allocation Algorithms
• Spring Boot, Hibernate, Java reactive, JPA 
• Relational Databases - MSSQL,
• Design Patterns : MVC, Singleton, Adapter, Factory, Builder, Strategy
• Messaging Queues - Apache Kafka
• Cache - Redis
• Search - Elastic Search
• Java
• NoSQL - Mongo, Cassandra 
• Jenkins, GIT, BitBucket, JIRA