Java Developer

Required Skills for the Java role :

• Experience in Core Java, CXF, Spring.
• Experience in spring boot, microservices.
• Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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, preferably Sybase database
• Good knowledge of multi-threading and high volume server side development
• Experience in sales and trading platforms in investment banking/capital markets
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.
• Bachelor's/Master’s degree in Computer Science or related field from a top-tier institute (IIT, NIT, BITS, etc.).

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai

Experience - 4 to 10 years

Kindly revert over mail if you are interested.

Java Developer – Job Description

We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.

Key Responsibilities

• Design and develop robust backend services and APIs primarily using Java (Spring Boot)
• Contribute to Python-based components where needed for automation, scripting, or lightweight services
• Build, integrate, and optimize RESTful APIs and microservices
• Work with relational and NoSQL databases
• Write unit and integration tests (JUnit, PyTest)
• Collaborate closely with DevOps, QA, and product teams
• Participate in architecture reviews and design discussions
• Help maintain code quality, organization, and automation

Required Skills & Qualifications

• 4 to 10 years of hands-on Java development experience
• Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
• At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
• Familiarity with Python frameworks like Flask or FastAPI is a plus
• Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
• Good understanding of OOP, design patterns, and software engineering best practices
• Familiarity with Docker, Git, and CI/CD pipelines

Key Skills & Requirements

• Strong proficiency in Java 11 and above
• Hands-on expertise in Spring Boot and Microservices Architecture
• Strong Programming, Analytical, and Problem-Solving skills
• Proficiency with NoSQL Databases (MongoDB, Cosmos DB) and RDBMS (SQL/Oracle/Postgres)
• Experience with Messaging Queues (RabbitMQ/Kafka)
• Good understanding of Functional and Domain knowledge
• Expertise in Project Architecture & Data Flows
• Proficient in CI/CD tools (Jenkins or equivalent)
• Strong experience with Testing Frameworks: JUnit, Mockito, Cucumber, BDD
• Basic knowledge of Cloud Platforms (Azure / AWS)
• Familiarity with Project Management Tools – JIRA, Confluence, ServiceNow
• Monitoring tools knowledge like New Relic, Splunk, Nagios (good to have)

Responsibilities

• Design, develop, and maintain scalable backend applications using Java 11+ and Spring Boot
• Build and manage microservices-based solutions ensuring high performance and low latency
• Collaborate with cross-functional teams to define, design, and ship new features
• Implement best practices for CI/CD pipelines and automate deployment workflows
• Ensure code quality through unit testing, integration testing, and BDD practices
• Work with databases (SQL/NoSQL) for data modeling and optimization
• Monitor, troubleshoot, and enhance system performance using tools like Splunk, New Relic, Nagios
• Provide technical guidance and mentorship to team members

At least 4 years' experience as a Node.js developer.

Experience in Microservices

Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.

Mandatory experience in Postgres and MySql.

Knowledge of front-end technologies such as HTML5 and CSS3.

Superb interpersonal, communication, and collaboration skills.

Exceptional analytical and problem-solving aptitude.

Job Description:
We are looking for talented Technical Managers to be part of the Product Engineering team. The candidate should have good experience with Java/J2ee based technologies and will be responsible for delivering features that are meaningful to the customer and consistent with the product vision through the management of a cross-functional team. The person will also contribute to the team as a servant leader and ensure that the team has everything needed to be successful.

Technical Competencies

• Strong Java/J2EE development experience with demonstrated ability to develop and troubleshoot large mission applications & Software Products
• Experience on exception handling, correct use of data structures, multi-threaded programming, memory management and application tuning
• Excellent exposure in Object Oriented Design skills using Java/J2ee along with:
• Core Java Language (Collections, Concurrency/Multithreading)
• JDBC concepts (connection pooling, statement, result set)
• Web Technologies (Struts/Struts 2, Spring (IOP, MVC, AOP), Hibernate, JSP, Web services)
• Database optimization and profiling
• Core/JEE/Integration Design patterns/UML
• Should have experience in Unit Testing
• Good hands on experience with RDBMS like MySQL/Oracle with ability to write SQL Queries/Stored Procedures/Triggers/Joins/View etc
• Practical application of software product development standards and methodologies including Agile, XP, Kanban, RUP and UML
• Ability to apply design patterns consistently and also accurate when building per design requirements
• Good experience in source control, unit testing, code verification, documentation, automated build, continuous integration, metrics, and code reviews.
• Demonstrated problem solving, analytic and troubleshooting skills.
• Strong written and oral communication skills are required to effectively engage internal stakeholders and their technical representatives.

Responsibilities:

• Manages the team in producing working software each iteration in accordance with the team’s commitments
• Facilitates planning sessions, team meetings, and other “rituals,” such as the daily standup, iteration planning, iteration kickoff, iteration review, and retrospectives
• Ensures that the backlog of work for the team is well-defined with respect to scope, clarity of requirements, and acceptance criteria
• Helps remove roadblocks to delivery success.
• Helps the team follow its defined process, and leads process improvement efforts
• Understands the client’s business strategy and objectives as it relates to the product being developed; ensures that the client’s expectations are met or exceeded.
• Oversees the completion of stories, ensuring that the team understands what “Done” means for each story.
• Interfaces between the team and the customer
• Communicates effectively within the team and with all stakeholders by providing high-quality visibility into planned and actual deliverables.
• Is a model developer, with sharp coding skills and a passion for excellence
• Participates in design and coding activities, and helps with requirements, analysis, and testing as needed
• Ensures that the architecture of the product is sound
• Ensures product quality through effective monitoring of quality trends, test automation, defect tracking and root cause analysis.
• Assures that all production deliveries meet acceptance, operational, and quality criteria
• Develops camaraderie and strong collaboration across both the 3Pillar team and client team,
• Actively demonstrates and teaches strong consulting skills to teammates,
• Understands the full set of product development capabilities and speaks to them holistically,
• Proactively develops a deep "trusted advisor" relationship with the primary buyer,
• Assists in developing strategies to take advantage of opportunities within the account and works collaboratively with the Client Partner to execute them

Benefits

• A competitive annual salary based on experience and market demands
• Flexi-timings
• Medical insurance with the option to purchase a premium plan or HSA option for your entire family
• In-house Food & Refreshments
• Regular Health check-up camps arranged by the company
• Recreational activities
• Business casual atmosphere