
Java Developer – Job Description
Wissen Technology is now hiring 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 consultancy.
Required Skills:
• Exp. - 2 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 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.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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📍 Position : Java Architect
📅 Experience : 10 to 15 Years
🧑💼 Open Positions : 3+
📍 Work Location : Bangalore, Pune, Chennai
💼 Work Mode : Hybrid
📅 Notice Period : Immediate joiners preferred; up to 1 month maximum
🔧 Core Responsibilities :
- Lead architecture design and development for scalable enterprise-level applications.
- Own and manage all aspects of technical development and delivery.
- Define and enforce best coding practices, architectural guidelines, and development standards.
- Plan and estimate the end-to-end technical scope of projects.
- Conduct code reviews, ensure CI/CD, and implement TDD/BDD methodologies.
- Mentor and lead individual contributors and small development teams.
- Collaborate with cross-functional teams, including DevOps, Product, and QA.
- Engage in high-level and low-level design (HLD/LLD), solutioning, and cloud-native transformations.
🛠️ Required Technical Skills :
- Strong hands-on expertise in Java, Spring Boot, Microservices architecture
- Experience with Kafka or similar messaging/event streaming platforms
- Proficiency in cloud platforms – AWS and Azure (must-have)
- Exposure to frontend technologies (nice-to-have)
- Solid understanding of HLD, system architecture, and design patterns
- Good grasp of DevOps concepts, Docker, Kubernetes, and Infrastructure as Code (IaC)
- Agile/Lean development, Pair Programming, and Continuous Integration practices
- Polyglot mindset is a plus (Scala, Golang, Python, etc.)
🚀 Ideal Candidate Profile :
- Currently working in a product-based environment
- Already functioning as an Architect or Principal Engineer
- Proven track record as an Individual Contributor (IC)
- Strong engineering fundamentals with a passion for scalable software systems
- No compromise on code quality, craftsmanship, and best practices
🧪 Interview Process :
- Round 1: Technical pairing round
- Rounds 2 & 3: Technical rounds with panel (code pairing + architecture)
- Final Round: HR and offer discussion
Your responsibilities will include:
Designing, implementing and maintaining Java-based applications
Contributing in all phases of the development lifecycle
Writing testable, scalable and efficient code
Test and debug new applications and updates
Maintain up to date code documentation
Participating in code reviews
Key Requirement:
- You have prior experience in Core Java.
- Strong knowledge of Java Application Frameworks
- Hands-on experience working in SQL
- Experience in API development using Java will be a plus.
- Excellent knowledge and experience in writing testable, scalable, flexible, robust and efficient web applications using JavaEE 6/7 technologies, specifically, Spring core, Spring Boot Spring Data, spring batch and JPA
- Experience in successfully deploying Java-based applications in production and understanding load-balancing, authentication, and fault tolerance through Tom Cat.
- Experience in database modeling (MySQL/NoSQL databases such as Mongo DB)
- Knowledge of integrating with Ant, Maven, GIT and Shell scripting.
- Strong backend experience to develop Data Layer using at least one of the ORM frameworks like Hibernate, JPA etc.
- Strong RDBMS Skills and SQL skills. Experience in MySQL, Teradata and warehousing databases.
-
Experience in Analytics frameworks and visualization products.
- Excellent knowledge and experience of Maven, Continuous Integration, and Continuous Delivery with Jenkins.
• Experience with JavaScript frameworks, especially Angular is a definite plus.
Java 8, J2EE , Spring Boot, Microservices, Apache Spark, DevOps, Advanced SQL, preferably with
expertise in Data engineering/Data analytics,
ELK(Elastic Search, Logstash , Kibana) stack, Teradata, any No SQL database, Hands on experience in
maintaining products on Cloud Technologies like PCF, Azure, Docker, Kubernetes, etc, NodeJS,
Angular 2x, GitLab with CI/CD, Hands on experience in Unix server, Shell scripting, Large data
processing, Performance tuning, Experience in working in various Test Automation frameworks like
Selenium, Test NG, Python, Cucumber, Karma, Karate/ Jasmine, etc
Experience in using Eclipse, Spring tool suite, Project building tools - Maven, Gradle, etc, JIRA for ALM.

- Discussing the project aims with the company requirement and development team.
- Designing and building web applications using Laravel.
- Troubleshooting issues in the implementation and debug builds.
- Working with front-end and back-end developers on projects.
- Testing functionality for users and the backend.
- Ensuring that integrations run smoothly.
- Scaling projects based on Company feedback.
- Recording and reporting on work done in Laravel.
- Maintaining web-based applications.
- Presenting work in meetings with clients and management.
Roles and Responsibilities;-
- Include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
- Designing, developing and delivering high-volume, low-latency applications for mission-critical systems
Framework required – spring boot, Hibernate
Skills - Should have knowledge of JPA, js, Ajax
Job ID : LK0601
Java Developer JD;
- 2-7 years of Experience
- Java 8
- Spring boot
- API development
- MVC architecture
- web services
- OOPS
Required Skill:
• Good hands-on experience with Java and JEE
• Good hands-on experience with Microservices
• Good experience in UI frameworks (HTML, Java Script, HTML5, JSP, Ajax)
• Good understanding of Spring, Spring boot, Spring Integration
• Good experience with service oriented architecture and REST, JSON, XML, SOAP
• Good experience with any Directory technology LDAP
• Good Experience with a relational database like Oracle
• Experience working with Agile Methodology
• Experience in using RTC, code quality tools, defect tracking tools
• Good experience with code reviews
• Excellent team player with good organizational, communicational, analytical and logical skills.
• Good understanding of the web browsers and web applications
Desired Skills:
• Good experience with Ping product like PingAccess and Ping Federate
• Apache Camel
Qrata is currently searching for a full stack developer for a YC backed product startup.
Familiar with push notifications service and socket programming
Self-motivated with the ability to work independently or jointly in a self-directed way.
Demonstrated successful development of enterprise-grade web applications
Proven analytical and problem-solving capabilities
Comfortable leading product development
Strong work ethic and desire to build industry-leading products
Startup experience
Worked on product development
JD:
Your role will include:
- Writing and testing your code, innovating and contributing towards increasing the value delivered by your team.
- Setting a high bar through your design, development, analysis and deployment activities
- Understanding and participating in evolving the architecture of our products.
- Keeping up-to-date with new technologies, best practices, and work on optimizing the tooling and automation.
- Understanding the latest development and engineering paradigms like Scrum/Agile/TDD/BDD/DDD etc.
You have experience with the following:
- Strong experience of leading and being part of technical teams preferably following agile methodology.
- Strong technical background with ability to provide technical guidance to other team members.
- Knowledge of microservices and must have experience of implementing a few microservices by the least.
- Knowledge of API driven platform development & Software Integration.
- You have hands-on experience in building secure, high-performing and scalable systems in Java.
- Exposure to JVM based languages like Java, Scala, Clojure.


