Core Java development Engineer

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. - 3-8 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.

Job Title : Senior Java Developer

Experience : 6+ Years

Shift Timing : 01:00 PM to 10:00 PM

Domain : Clinical Research

Location : Noida, Gurgaon & Pune

Mandatory Skills :

Java 8+, Hibernate, Oracle, PostgreSQL, JAX-RS (RestEasy), Jackson, REST APIs, JSP, React.js, GitHub, GitHub Actions, SonarQube, SonarLint, and AWS (IAM, SNS, SQS, S3, CloudWatch).

Job Summary :

We are looking for an experienced Senior Java Developer with 6+ years of experience to join the software development team of a leading Clinical Research organization.

The role involves developing and enhancing enterprise applications, building scalable APIs, and contributing to feature development while ensuring code quality and best practices.

Key Responsibilities :

• Develop and maintain enterprise applications using Java 8+ and Hibernate.
• Design and consume RESTful APIs using JAX-RS (RestEasy) and Jackson.
• Work with Oracle and PostgreSQL databases, including complex query writing.
• Develop UI components using JSP and React.js.
• Utilize GitHub and GitHub Actions for version control and CI/CD processes.
• Ensure code quality through SonarQube and SonarLint.
• Work with AWS services including IAM, SNS, SQS, S3, and CloudWatch.
• Collaborate with cross-functional teams to deliver high-quality solutions.

Note : Candidates should preferably be sourced from organizations within the Grid ecosystem.

Responsibilities

• Provide technology contributions in
• Working in an agile development environment
• Translating business requirements into low-level application design
• Application code development through a collaborative approach
• Doing Full-scale unit testing
• Applying test-driven and behaviour-driven development (TDD/BDD) QA concepts
• Applying continuous integration and continuous deployment (CI/CD) concepts

Soft Skills

• Should be able to contribute as an individual contributor
• Should be able to execute his/her responsibility independently
• Excellent problem-solving skills and attention to detail.
• Focus on self-planning activities
• Firm with communication skills

Mandatory Skills

• Java, Spring Boot, Python and relational / non-relational databases
• Container orchestration - Kubernetes, Docker
• Development experience in Linux environment
• Modern SDLC tooling (Maven, Git)
• Micro services design-oriented application development and deploying the same using Container orchestration in the cloud environment
• Understanding CI/CD pipeline & related system development environment

Nice-to-have Skills

• Front-end technologies (JavaScript, HTML5, CSS, Angular)

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

Role : Junior Developer (Junior Consultant) - Java/ React/Golang

Location : Gurgaon/Bangalore/Pune

Education : BE/ BTech/ MCA or equivalent engineering degree

Experience : 2-4 years of Java Programming experience

These are urgent positions and we are looking to onboard candidates by end of April . Only those should apply who can join immediately.

- Number of positions : 40

- Normal working hours

- Remote work environment

Salary : INR 4 Lakhs - 8.5 Lakhs/ year

- Selected candidates will undergo extensive Training of 6 weeks.

- 2.5 years of Service level agreement with Shortlisted and offered Candidates

Job Requirement :

Mandatory :

- At least 1.5 + year development or support experience in Java application

- Good understanding of Object-Oriented Concepts (OOPs)

- Understanding of web applications

- Good analytical and logical abilities

- Good communication and interpersonal skills

- Minimum 60 % marks in Class 10 & 12th & BE/BTech/ MCA

Desired :

- Working knowledge of JavaScript / Golang/ React

Perks and Benefits :

- Competitive Compensation

- Medical Insurance- Self, Family

- Term Life Insurance

- Group Personal Accident Insurance

- Long Service Awards

- Professional Certification Assistance

- Global Exposure

About Xebia :

Xebia Group consists of nine specialized, interlinked companies: Xebia, Xebia Academy, StackState, GoDataDriven, Xpirit, Binx.io, Instruqt, Qxperts and Xccelerated. Offices in Amsterdam, Utrecht, Hilversum, Paris, Gurgaon, Pune, Bangalore, Boston and Dubai.Expertise in Technology Consulting, Offshore Services, Deployment Automation, Digital Transformation, Agile Transformations, Agile Product Management, DevOps, Big Data & Data Science, Cloud Infrastructures, Agile Software Development, Blockchain, Quality & Test Automation, Classroom Training, In-Company Training, Artificial intelligence, and Machine Learning.Xebia explores and creates new frontiers. Always one step ahead of what businesses need, we turn the latest technology trends into advantages for our customers. As a mainstream frontrunner, we create new solutions and build the future with our clients.

About the company
Currently we are hiring for a VC backed startup a fast growing fintech startup based in Bangalore.

It is a super app to digitize India’s 50M+ sales agents where they can get access to relevant products & services, receive training through interactive videos on “how to sell, what to sell and whom to sell”, and earn money. For businesses, we help them save a huge effort in managing and training these agents and help them increase their reach to every nook and corner of the country.

India is a trust deficit market which cannot be accessed through Internet Marketing on Facebook and Google as the majority of the customers need training, push, motivation and a primer on why and how to use a product.

To solve this problem, traditional industries like BFSI, Telecom, Automobile, Real Estate etc. use 50M+ frontline sales executives to drive distribution. We believe that not just for these traditional industries but also for emerging companies in FinTech, EdTech etc these agents will play a pivotal role in accessing trust deficit customers.

They have grown to a  100,000+ agent network across India (growing 50% MoM) & are funded by tier1 VC’s and angels in India.

Summary of Role

As a lead of the consumer products software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of the software applications.

Responsibilities:

• Overlook development of all consumer products in JAVA
• Lead a team of 4-5 developers
• Optimize components for maximum performance across a vast array of web-capable devices and browsers
• Focus on code maintainability and performance of application
• Provide technical advice and assists in solving programming problems
• Continuously create new and interactive features that would help to improve user experience and user engagement.
• Assist with troubleshooting of issues as needed
• Lead the design and architecture of software solutions
• Assist in developing and maintaining continuous integration pipelines

Required Skills for this Role:

• JAVA
• Spring/Spring Boot
• Hibernate
• Linux
• REST
• Kafka
• Mysql
• AWS
• ELK Stack (Elasticsearch)
• CI/CD Pipelines
• Team Leadership experience of at least 3 year

Qualifications:

• 4+ years of experience in Java based technologies
• Experience in designing databases and system architecture
• Experience in building products from scratch at well funded start-ups
• Team Lead/Team Manager experience of at least 3 years

• Excellent Written/Oral communication skills in English
• Minimum 6 years of development experience is required including but not limited to:
• Azure Logic Apps
• Azure Service Bus
• Azure Web/API Apps
• Azure Functions
• Azure SQL Database / Cosmos DB
• Minimum 6 years of experience in enterprise software development using .NET stack, including REST APIs, Web Applications and distributed systems
• Working knowledge of security best practices (e.g. OWASP)
• Experience in NoSQL data stores development is an asset

Nontechnical

• Excellent Written/Oral communication skills in English
• Quick learner
• Passionate for technical excellence
• Self-motivated worker, that can complete tasks under minimal supervision
• Ability to work under pressure
• Team Player
• Comfortable performing component demonstration in front of key business holders, PMs, and clients

Requirements:

• Design, develop and implement technical solutions in Microsoft Azure environments using .NET and other programming languages
• Work with business analysts and end-users to define system requirements
• Work with the functional testers to ensure accuracy and solution integrity
• Frequently communicate with users, and team members during program development to review progress and ensure that requirements have been met.
• Evaluate the best approach to solve problems
• Present solutions and recommendations to stakeholders.
• Provide technical training and mentoring to other teams and team members

What will you do?

• You will be responsible for the design and development of large-scale, multi-tenant, distributed systems using scalable, fault-tolerant architecture with distributed queues (kafka), distributed caches (redis), high volume data stores (MongoDB, Cassandra, elasticsearch), container-centric deployments (kubernetes).
• Write Java codes using best practices with high quality standards.
• Participate in code reviews and deep dive into design discussions.