Java Architect

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. 

ompany Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Job Title: Java Developer

Experience range:- 3-6 Years

Location:- Chennai

Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)

·    Strong written/verbal communication skills

·      Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)

·    Good knowledge of the JVM with an understanding of performance and memory optimization.

•  Good experience in Spring boot.
•  Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

•  Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.

•  Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

•  Expert level understanding of Object-Oriented Concepts and Data Structures

•  Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.

About the role:

The SDE 2 - Backend will work as part of the Digitization and Automation team to help Sun King design, develop, and implement - intelligent, tech-enabled solutions to help solve a large variety of our business problems. We are looking for candidates with an affinity for technology and automations, curiosity towards advancement in products, and strong coding skills for our in-house software development team.

What you will be expected to do:

• Design and build applications/systems based on wireframes and product requirements documents
• Design and develop conceptual and physical data models to meet application requirements. 
• Identify and correct bottlenecks/bugs according to operational requirements
• Focus on scalability, performance, service robustness, and cost trade-offs.
• Create prototypes and proof-of-concepts for iterative development.
• Take complete ownership of projects (end to end) and their development cycle
• Mentoring and guiding team members
• Unit test code for robustness, including edge cases, usability and general reliability
• Integrate existing tools and business systems (in-house tools or business tools like Ticketing softwares, communication tools) with external services
• Coordinate with the Product Manager, development team & business analysts

You might be a strong candidate if you have/are:

• Development experience: 3 – 5 years
• Should be very strong in problem-solving, data structures, and algorithms.
• Deep knowledge of OOPS concepts and programming skills in Core Java and Spring Boot Framework
• Strong Experience in SQL
• Experience in web service development and integration (SOAP, REST, JSON, XML)
• Understanding of code versioning tools (e.g., git)
• Experience in Agile/Scrum development process and tools
• Experience in Microservice architecture
• Hands-on experience in AWS RDS, EC2, S3 and deployments

Good to have:

• Knowledge on messaging systems RabbitMQ, Kafka.
• Knowledge of Python
• Container-based application deployment (Docker or equivalent)
• Willing to learn new technologies and implement them in products

What Sun King offers:

• Professional growth in a dynamic, rapidly expanding, high-social-impact industry
• An open-minded, collaborative culture made up of enthusiastic colleagues who are driven by the challenge of innovation towards profound impact on people and the planet.
• A truly multicultural experience: you will have the chance to work with and learn from people from different geographies, nationalities, and backgrounds.
• Structured, tailored learning and development programs that help you become a better leader, manager, and professional through the Sun King Center for Leadership.

About Sun King

Sun King is a leading off-grid solar energy company providing affordable, reliable electricity to 1.8 billion people without grid access. Operating across Africa and Asia, Sun King has connected over 20 million homes, adding 200,000 homes monthly.

Through a ‘pay-as-you-go’ model, customers make small daily payments (as low as $0.11) via mobile money or cash, eventually owning their solar equipment and saving on costly kerosene or diesel. To date, Sun King products have saved customers over $4 billion.

With 28,000 field agents and embedded electronics that regulate usage based on payments, Sun King ensures seamless energy access. Its products range from home lighting and phone charging systems to solar inverters capable of powering high-energy appliances.

Sun King is expanding into clean cooking, electric mobility, and entertainment while serving a wide range of income segments.

The company employs 2,800 staff across 12 countries, with women representing 44% of the workforce, and expertise spanning product design, data science, logistics, sales, software, and operations.

Radisys Corporation is looking for JAVA Backend developers with 6-10 years of experience for their Bangalore location.

The ideal candidate will be able to design and develop code for tasks after brainstorming sessions and applying best practices and coding conventions.

This position requires experience in Java, Spring, Spring Boot, microservices, message broker, and DB knowledge. Candidates should be skilled in developing enterprise applications that consist of FE, BE, and DB integration.

If you have experience with Docker and Kubernetes, that's an added advantage.

Work Location: Chennai

Work Experience: 5 to 8 Years

• Experience in working with Core Java (Ver 11), Spring, Spring Boot, Hibernate, JSF or Primefaces, SQL
• Familiarity with working with Jasper, Rest API is added plus

• Design, develop, implement, and maintain java application phases, code, and software
• Programming, testing, and debugging
• Competence and comfort using multiple frameworks
• Ability to gather accurate requirements and work closely with stakeholders
• Strong attention to detail with the ability to identify errors 

• Graduate in Computer Science / Computer Applications / Engineering / Information Technology

The ideal candidate should be a self-motivated, multi-tasker, and demonstrated team player. You will be responsible for the production support of software products and coordinating with various teams for support. You should have outstanding communication and Team-Player skills.

Educational Qualification: BCA, MCA or BE/B.Tech (CS)

Must-know technologies: Java,
Good to know technologies: DMN tools
Experience: 02 Years - 05 Years
Skill Level: Good

Responsibilities:

• Contribute to Java development work as well as the latest Decision model and notation tools

   

• Comply with coding standards and directions given by his direct manager Collaborate with an international and diverse team of Data Architects, Business Analysts, and Project Managers

• Tasks will be assigned and after completion, code need to be committed and task assigned for review by Senior Java developer

• Work with technology stakeholders to devise solutions that will fulfill business requirements and meet organizational strategic goals

• Develop application functionality which meets business requirements with high quality within given deadlines - develop maintainable, well-documented application functionality with an eye toward standardization, common components, simplicity, performance, robustness and other attributes of enterprise-strength solutions

• Thoroughly test all functionality - utilize detailed and thorough practices including negative testing, testing of boundary conditions, , and work collaboratively with business areas.

• Support interfaces between the deployment of developed applications and the decommissioning of legacy applications

• Support with the Development and Infrastructure Teams

• Design, and develop scalable, high-performance, highly reliable and secure applications using waterfall and agile methodologies

• Create reusable code

 If you are passionate about technology and asynchronous, reactive systems sound like fun then join our small team of developers who are defining the digital payments space in India. A place with lot of potential to learn payments domain and unleash the engineer in you to build scalable, reliable, low-latency systems to help banks reduce the digital divide. 

Responsibilities

• Developing new software based on the client or organization requirement.
• Working on the Change Requests raised by clients.
• Understanding the business requirement of client and provide software solution to solve the business requirement.
• Analyzing the existing software/solution/code and enhance it as per requirement.
• Debugging/ Analyzing existing software/ services and carry out changes as per
•  
• Co-ordination with the onsite team and provide solution to the problems/ enhancements/bugs etc. reported.
• Working with field engineers, need to visit customers if the problem is more serious.
• Support Deploying, testing of new releases/bugs/issues in new patches and support
• client in testing if required.
• Support on-site team or clients during production release/ DR / System upgrade etc.

Skill-Set Requirement

• Excellent knowledge and in hand experience of working on JAVA, HIBERNATE and SPRING.
• Good knowledge of Any Database (Oracle/SQL/MYSQL etc.) DDL &DML queries.
• Knowledge of the software life cycle.
• Strong knowledge of the OOPs concepts.
• Good analytical and problem-solving skills.
• Good communication skill.
• Prior knowledge of Linux operation system is welcomed/preferred.