Java Developer

JOB DESCRIPTION:

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 4– 12 years of strong hands-on experience in Core Java.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

Why Join Wissen Technology?

• Be a part of a high-growth organization that has expanded 400% in the last five years.
• Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
• Engage with Fortune 500 clients and deliver high-impact projects.
• Certified as a Great Place to Work®.
• Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
• Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
• Global presence across US, India, UK, Australia, Mexico, and Canada.

Website : www.wissen.com 

Role: Sr. Java Developer

Exp: 5-7 Years

CTC: up to 30 LPA

Location: Bangalore

Roles and Responsibilities:

• Requirement Analysis, Design and develop, build and maintain modular widgets, custom
• interfaces and middleware components using technologies mentioned.
• Only candidates with motivation to do hands on development and troubleshooting, are
• Willing to help team members when they are stuck, and are willing to work for a technology oriented firm should apply.
• Candidates with experience in technologies like J2EE, spring, Hibernate and java related technologies should apply.
• Ability to design and code using open-source technologies and frameworks.

Looking candidates from Banking or Payment Domain

🔧 Key Skills

• Strong expertise in Python (3.x)
• Experience with Django / Flask / FastAPI
• Good understanding of Microservices & RESTful API development
• Proficiency in MySQL/PostgreSQL – queries, stored procedures, optimization
• Solid grip on Data Structures & Algorithms (DSA)
• Comfortable working with Linux & Windows environments
• Hands-on experience with Git, CI/CD (Jenkins/GitHub Actions)
• Familiarity with Docker / Kubernetes is a plus

• Design, develop, and maintain Java-based applications using Spring Boot and Hibernate frameworks.
• Collaborate with cross-functional teams to gather and analyze requirements, and translate them into technical solutions.
• Implement microservices architecture to build scalable and resilient systems.
• Write clean, efficient, and maintainable code adhering to best practices and coding standards.
• Conduct code reviews and provide constructive feedback to team members.
• Troubleshoot and debug issues to ensure optimal performance and reliability.
• Stay updated with the latest trends and technologies in Java development, microservices, and cloud computing.

Role & Responsibilities:

• Individuals are responsible for all traditional development activities analysis, design, coding, testing, and documentation.
• Add new features to existing Windows and Web-based applications in Visual Studio 2019. Interacting with internal team.
• Transform business and design needs into innovative products.
• Drive all projects to completion within deadlines.
• Perform thorough testing to find issues ahead of time.
• Engineering software needs more precise analysis & coding skillset 
• Enhance skillset by working with fortune 500 clients
• Interacting with internal team. 

Qualifications:

• B.E in computer science or related fields.
• Hand on development experience with web & database technologies (MS SQL).
• Excellent programming & communication skills Strong problem solving, judgmental, and decision-making skills.
• Ability to work at the tactical and strategic levels of IT initiatives.
• Impressive hands-on experience in .Net technologies. Impressive hands-on experience and knowledge with C#, SQL, JSON, XML, Win Forms & MVC, Angular, JavaScript, jQuery , HTML/CSS.
• Self-Motivated, flexible & Innovative.

We are on a mission to enable businesses to build agile and accountable technology teams that can deliver results in a secure and scalable way. You will be working in one such technology team for our clients across the world.

• Collaborate with front-end and back-end developers and designers to build website following client requirements

• Create clear, simple, and reusable code

• Develop all server-side logic, including data storage to optimize website performance

• Identify programming bottlenecks and bugs and find fixes

• Test, update and validate web applications to be used on different web browsers

• Execute automated testing platforms and system tests

• BSc/BE/BTech in Computer Science, Engineering or a related field

• At least 2+ years of experience with JavaScript and Node.js

• Hands-on expertise in REST, MySQL/PostgreSQL, WebSocket, MongoDB, Redis, etc.

• Familiarity with Docker and AWS infrastructure

• Understanding of data security principles

• Proficiency in JavaScript, web stacks, libraries, and frameworks

• Strong analytical and problem-solving aptitude skills

We are looking for an experienced Lead Java Developer to join our team and take a leadership role in driving the design, development, and delivery of highquality software solutions. A Senior Java Lead Developer will be responsible for leading a team of developers, providing technical guidance, and ensuring the successful execution of projects. Should have a strong background in Java development, excellent leadership skills, and a track record of delivering complex software projects on time. System Architect: Should have Architect the system before for a large scale solution Understanding of various java design pattern and use the pattern which is more appropriate Understanding of various micro-service design pattern and use the pattern which is more appropriate Has worked on DDD with CQRS Has designed solution for multi tenant application. Technical skills: Used latest version of java and good understanding of it Skilled in spring boot, spring MVC Basic Skill: 10+ years of experience in development. Good communication skills in English. Testing: Skilled in using Junit Security: Good understanding of application security Understanding of DDOS and best practice for that Good understanding of rate limiting API Good understanding about spring security or any thing better Database: Great understanding of MySQL Experience in extensively using hibernate Debugging: Understanding about Logging Skilled in debugging production issue

Role Description

The SDE 2/3 will be part of the engineering/development team in Games24x7 Pvt. Ltd. and will be responsible for taking ownership of the core products of the company. The applicant must have good communication, interpersonal, technical and analytical skills in order to take part in the collaborative and cooperative development process that delivers the high quality software we use to provide the best possible playing experience to our players. He/she must be an expert in the Java programming language and needs to be familiar with popular IDEs, tools and scripting languages on the Linux operating system. Familiarity with an RDBMS, preferably PostgreSQL, is essential to succeed in this position.

General Accountabilities/Job Responsibilities:

• Participate in the requirements analysis, design, development and testing of applications.
• Write clean and efficient code and stay hands-on with it.
• Write high level code, code review, unit testing and deployment.
• Ensure practical application of design principles with a focus on the user experience, usability, template designs, cross browser issues and client server concepts.
• Contribute to the development of project estimates, scheduling, and deliverables.
• Work closely with QA team to determine testing requirements to ensure full coverage and best quality of product.
• Take up the opportunities to mentor and guide junior team members in excelling their jobs.

Requirements:

• B.E. /B.Tech. in Computer Science or MCA from a reputed university.
• 3-12 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.
• Knowledge of distributed system, distributed caching, messaging frameworks, ESB etc.
• Experience in Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database
• Additionally, knowledge of HBase, Hadoop and Hive is desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Experience as a participant in agile methodologies.
• Excellent written and verbal communication skills and presentation skills.
• This is not a fullstack requirement, we are looking for a purely backend expert.