
Role: Backend Developer-SDE2
- 3-5 years of exp into
Responsibilities:
- Work on the development backend systems for our first product.
- Build reliable, secure and performant backend systems.
- Drive test coverage and continuous delivery automation within the team.
Requirements:
- 3-4 years of software development experience.
- Strong computer science fundamentals.
- Good knowledge of Java ecosystem.
- Can write code that is readable, maintainable and performant.
- Good understanding of relational databases, transactions, entity-relationship modeling.
- Comfortable writing multi-threaded programs.

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We're looking for a high-energy Java engineer to design and implement scalable microservices using Spring Boot. You'll collaborate across teams to deliver clean, efficient, and high-performance backend services.
🛠️ Key Responsibilities
- Design, develop, and maintain RESTful services and microservices using Spring Boot
- Utilize OOP, Java Collections, Exception Handling, and method overloading/overriding in modern coding practices
- Build and optimize multithreaded systems (Threads, synchronization, wait(), notify(), yield()) for performance and scalability
- Write unit and integration tests (JUnit, Mockito, Spring Test) to ensure code quality
- Collaborate with cross-functional teams (QA, DevOps, Product) through code reviews and feature planning
- Diagnose and resolve performance bottlenecksJVM tuning, SQL/caching optimizations
- Adhere to coding standards, best practices, and participate in peer code review
🎯 Required Skills & Experience
- Strong Java fundamentals: OOP, Collections, Generics, Exception Handling
- Concurrency mastery: multithreading, synchronization primitives (wait(), notify(), yield())
- Spring Boot: solid experience building, testing, deploying REST APIs
- Microservices: design, inter-service communication, stateless service patterns
- Testing frameworks: JUnit, Mockito, Spring Test
- Performance tuning: profiling, optimization with JVM settings and database queries
- Tools & practices: Git, Maven/Gradle, CI/CD pipelines, Docker/Kubernetes (plus)
- Soft skills: strong problem-solving, collaboration, and effective communication
Java Technical Lead
We are solving complex technical problems in the financial 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.
Experience: 10+ years
Location: Mumbai
Job Description:
• 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.
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.
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
Must have experience / knowledge in Cluster Management Frameworks(e.g., Spark), Kafka,ElasticSearch, Docker, Kubernetes and database, build-and-test(preferred).
Must have hands-on experience with Java, Spring Boot & Hibernate
Must have good experience with Cloud (AWS/Azure/GCP)
Demonstrate project management skills
Experience with customer facing and handling customer expectations
Must have excellent verbal and written communication skills
Skills:
Java
very strong on Spring frameworks
Hibernate
Relational Database (Pref PostgresQL)
AWS / Azure
- Expertise in software design and development.
- Proficiency with at least one Object Oriented language(e. g. Java)
- 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.
Company operates in over 25 countries across six continents and is part of Publicis Media, one of four solution hubs within Publicis Groupe, which is present in over 100 countries and employs nearly 80,000 professionals.
It believe there are better ways for brands to connect with people. And we’re on a mission to guide brands to better connections -- across consumers, channels and partners. These are just some of the services we offer our clients in our quest to deliver ambitious outcomes.
-
Build an algorithm for artist to detect if their music was violating copy right infringement laws
-
Successfully won Techcrunch Disrupt
-
Optimized an algorithm that holds the current world record for Weisman Scores
Job Summary
Require a java developer having 2+ years of experience especially in Spring and Hibernate
Job Type: Full-time
Responsibilities and Duties
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
Key Skills
JEE, JPA2 , Hibernate
Required Experience and Qualifications
Proven hands-on Software Development experience
- Proven working experience 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 etc)
- Excellent 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 test-driven development
Job Type: Full-time









