Senior Technical Architect - Java

Job Title: Full Stack Developer (Java + React)

Location: Bangalore

Experience Level: 6–10 Years

Employment Type: Full-time

Job Summary-

Wissen Technology is looking for a skilled Full Stack Developer with strong experience in Java (backend) and React (frontend) to join our engineering team. You will be responsible for designing, developing, and maintaining scalable web applications, collaborating with cross-functional teams, and delivering high-quality software solutions.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and secure web applications
• Build RESTful APIs using Java-based frameworks
• Develop responsive and dynamic user interfaces using React
• Collaborate with product managers, designers, and other developers to define and deliver features
• Write clean, maintainable, and efficient code following best practices
• Perform code reviews and mentor junior developers
• Troubleshoot, debug, and upgrade existing applications
• Ensure application performance, quality, and responsiveness
• Participate in Agile/Scrum development processes

Required Skills & Qualifications

• Strong proficiency in Java (8 or above) and backend frameworks such as Spring Boot
• Solid experience with React.js, including hooks, state management, and component lifecycle
• Experience building and consuming REST APIs
• Familiarity with frontend technologies: HTML5, CSS3, JavaScript (ES6+)
• Knowledge of databases such as MySQL, PostgreSQL, or MongoDB
• Experience with version control systems like Git
• Understanding of software development principles, design patterns, and data structures
• Familiarity with build tools like Maven or Gradle
• Basic understanding of cloud platforms (AWS, Azure, or GCP) is a plus

Job Description

Position 1 : Sr Consultant / Consultant – Java + React (Remote) Joining time – Immediate joiner We are looking for Consultant or Senior Consultant role having 5-to-9-year experience. Must Have : Hands-on experience of 5+ years in Core Java, J2EE. Strong experience on java 8+. Strong experience on React. Strong understanding of Object-Oriented Programming and Design Patterns such as MVC and other popular design principles Strong Experience with micro services, Kubernetes, Docker, Kafka, Springboot Cloud experience of Azure/ AWS. Experience with deployment using DevOps tools on Azure Excellent communication and interpersonal skills Excellent troubleshooting skills, especially in complex application stacks Expert in understanding client requirement and designing solutions. Expert in problem solving, release management, repository management. Good To Have: Good experience of working with Node.JS, NoSQL systems GraphQL, Github Copilot Automated unit test cases include use of mocking frameworks. Ability to multi-task and switch context to changing priorities in a highly dynamic environment 

• Architect and Develop: Design, implement, and maintain high-performance backend services using Java/Golang and intuitive frontend interfaces using React.
• Technical Leadership: Provide technical guidance and mentorship to junior developers, promoting best practices and fostering a collaborative environment.
• Code Quality: Write clean, efficient, and well-documented code following industry best practices and coding standards.
• Collaboration: Work with backend developers, frontend developers, product managers, and other stakeholders to gather requirements and deliver robust solutions.
• Performance Optimization: Identify and address performance bottlenecks and scalability issues.
• Debugging and Troubleshooting: Diagnose and resolve complex issues in both backend and frontend components.
• Testing: Implement comprehensive testing strategies, including unit tests, integration tests, and end-to-end tests.
• Continuous Learning: Stay current with the latest industry trends, technologies, and best practices in full stack development.

Principal Software Engineer

Opportunity in this role / Why should you join here?

You will enjoy working with us if you are looking to work in a stimulating, flexible, open environment. You will experience ownership and independence at the same time providing technical solutions that work.

You will be part of the madness and thrill of growing the business from scratch. You get to make decisions, fail fast and learn fast. You get to contribute, add value to the organization by thinking like an entrepreneur. You are supported by the best talent in the industry and work with creative teams. You are rewarded as you go on proving yourself.

Requirements:

• Bachelor's degree in Computer Engineering/Computer Science or related field
• At least 6+ years of experience with at least 4 years of software application design experience
• Strong analytical and problem solving skills
• A full stack generalist with experience in both front-end and back-end technologies
• Proven experience in high-level programming languages, like Java and Development of scalable Web Applications and Web Services
• Experience in JavaScript frameworks like Angular, React, NodeJS
• Passion for delivering products end-to-end, from ideation to implementation
• Proven experience building complex web applications and micro services
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in PHP is a plus advantage

Responsibilities:

• Participate in design reviews and recommend improvements
• Provide technical guidance in software design and development activities
• Recommend new technologies to ensure quality and improve productivity
• Support in all phases of SDLC and ensure delivery of high-quality products
• Analyse business requirements and design/develop most effective technical solution
• Analyse and troubleshoot application issues in a timely fashion
• Work with other engineers in planning, prioritising and executing assigned tasks within deadlines

x• Work with QA team in preparing test cases and assist in automation

• Mentor other Engineers as and when required
• Assist in maintenances and upgrades of existing software applications
• Assist in risk assessment and mitigation activities.
• Assist in technical audits and make sure to implement audit recommendations.

Job Description for Java:

• Experience in JAVA programming and application development using Spring MVC, Spring Boot, Spring Security, Hibernate and Microservices

• Experience in building products with Full stack technologies, with excellent understanding of computer science fundamentals, data structures, algorithms, OOPs and OOA/D

• Experience in MySQL, Mongo dB (or other NOSQL db’s), REST, Web Sockets, JavaScript, Ajax

• Experience with GO a plus

• Experience with one of JavaScript Frameworks (React, Angular, Vue etc.)

• Experience in Rest API development using Spring MVC or Spring Boot

• Able to define, design, implement complex, and scalable systems

• Good team player and communication skills

• Experience with agile development methodologies with Test Driven Development (TDD)

• Experience with Jenkins Setup CI/CD (Continuous Integration / Continuous delivery)

• Proficiency in Java, with a good understanding of its ecosystems
• 2+ Yrs experience in microservices
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts
• Familiarity with different design and architectural patterns
• Skill for writing reusable Java libraries
• Know how of Java concurrency patterns
• Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services
• Experience in working with popular web application frameworks like Play and Spark
• Relevant Knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements
• Ability to write clean, readable Java code
• Experience in handling external and embedded databases
• Understanding basic design principles behind a scalable application
• Skilled at creating database schemas that characterize and support business processes
• Basic knowledge of JVM (Java Virtual Machine), its drawbacks, weaknesses, and workarounds
• Implementing automated testing platforms and unit tests
• In-depth knowledge of code versioning tools, for instance, Git
• Understanding of building tools like Ant, Maven, Gradle, etc
• Expertise in continuous integration
• Other required skills of a java developer include the basic knowledge of:
• JavaServer pages (JSP) and servlets
• Web frameworks like Struts and Spring
• Service-oriented architecture
• Web Technologies like HTML, JavaScript, CSS, JQuery
• Markup Languages such as XML, JSON
• Abstract classes and interfaces
• Constructors, lists, maps, sets
• File IO and serialization
• Exceptions
• Generics
• Java Keywords like static, volatile, synchronized, transient, etc
• Multi-threading and Synchronization

•  4-8 years of relevant experience in designing & developing and architecting systems/software
• for large business environments (Java, J2EE).
• • Strong design and coding skills in Enterprise Java, Hibernate, Spring, Spring Boot, REST web
• services, JMS (ActiveMQ), XML, JSON.
• • Must have good experience in Unix/Oracle/SQL.
• • Experience in any communication framework (MQ) is an added advantage.
• • Experience in Agile Development, Scrum, and Iterative approaches
• • Participate in requirement gathering JAD sessions and support documentation

Requirement :- Java Tech Lead (with knowledge of Angular)

• 5+ years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, JSON, XML
• 3+ years of experience in Spring Boot, Sprint Rest, Spring MVC.
• 5+ years of experience in REST, Micro service Development
• Knowledge of Design Patterns (Good to Have).
• Proven Experience in building complex web systems that have been successfully delivered to customers
• Experience in writing SQL-queries and knowledge of PL/SQL
• Experience in working with databases Oracle 10g, 11g, Postgres, Cassandra etc
• Exposure/Experience in working/setting up CI and CD environments (DevOps).
• Knowledge of development lifecycle, standards, approaches, utilities and environment: shells, version control systems, IDEs, project assembling tools;

Responsibilities:

•Participate in requirement, design, implementation, testing and support of custom banking solutions, which include features enhancements, new functionalities, and back-end systems integration.

•Define and manage resource plan together with the Project Manager aligning to the project schedule.

•Plan and drive the project's technical execution to achieve the committed scope and timeline.

•Monitor and report technical execution progress as well as all technical issues, risk or mitigation plan in a timely manner.

•Ability to coordinate multi-teams (e.g. customers, internal functional and technical SMEs), to understand business requirements, technical design and preparing of technical specifications.

•Assist in estimation of efforts and timescales for tasks delegated to the team.

•Contribute to design/code reviews for quality assurance and conformance to Company standards / guidelines.

•Hands-on participate in development and bugs fixing.

•Commit to continuous improvement and refinement of delivery.

•Strong technical knowledge and skills, consistently provide technical guidance and develop team members.

•Responsible for forward resource management, team building and staff career growth.

Requirements:

•Degree in Computer Sciences / Software Engineering / Information Technology.

•At least 5 years of working experience in Java EE development (preferably in the financial industry).

•Individual that is optimistic, proactive, good initiative, passionate, strives to achieve more as a team, and is able to motivate others.

•Understand design documentation standards such as Unified Modelling Language.

•Experience in various Java EE frameworks and design patterns. Preferably on Micro services architecture.

•Exposure in Java MVC frameworks such as Spring Boot.

• Design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.
• Contribute in all phases of the development lifecycle.
• Write well designed, testable, efficient code.
• Ensure designs are in compliance with specifications.
• Prepare and produce releases of software components.
• Build and deploy on to AWS
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.