MERN Stack Developer

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. 

Hiring for Mern Stack Developer

Exp : 4 - 6 yrs

Edu : BE/B.Tech

Work Location : Noida WFO

Notice Period : Immediate

Key Responsibilities:

Develop and maintain web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js)

Design and develop RESTful APIs and backend services Build responsive and user-friendly front-end interfaces using React.js

Collaborate with cross-functional teams to define, design, and ship new features Optimize applications for maximum speed and scalability

Required Skills:

Strong experience in JavaScript (ES6+)

Hands-on experience with React.js and component-based architecture

Experience with Node.js and Express.js for backend development

Knowledge of MongoDB or other NoSQL databases

Understanding of RESTful APIs and web services Familiarity with version control tools like Git Good understanding of HTML5, CSS3, and responsive design

Job Title: Senior Java Full Stack Developer

Locations: Delhi NCR, Hyderabad, Chennai, Pune, Bangalore Experience: 6–13 Years

Employment Type: Full-Time

"Need Immediate joiners or serving notice period candidates only can join in a maximum of 30 days"

About the Role

We are looking for an experienced and highly skilled Java Full Stack Developer with strong backend expertise in Java and hands-on experience in ReactJS for front-end development. The ideal candidate will drive the design, development, and implementation of high-performance, scalable applications that meet business goals.

Key Responsibilities

Backend Development (Approx. 80%)

• Design, develop, and maintain robust and scalable backend services using Java, Spring Boot, and related frameworks.
• Build and optimize RESTful APIs and microservices.
• Collaborate with cross-functional teams to define backend architecture and ensure high availability and performance.
• Troubleshoot complex issues, debug code, and improve overall system reliability.
• Participate in code reviews, design discussions, and technical decision-making.

Frontend Development (Approx. 20%)

• Develop responsive user interfaces and reusable ReactJS components.
• Integrate frontend components with backend services and APIs.
• Ensure high performance, cross-browser compatibility, and seamless user experience.

General

• Work in an Agile/Scrum environment and deliver high-quality software on schedule.
• Maintain robust documentation and follow SDLC best practices.
• Mentor junior developers and contribute to team growth.

Required Skills & Qualifications

• 6–13 years of professional experience in software development, with a strong focus on backend systems.
• Advanced proficiency in Java, Spring Boot, and related server-side technologies.
• Hands-on experience with ReactJS and modern JavaScript.
• Solid understanding of REST APIs, microservices architecture, and web services.
• Strong database skills (SQL and/or NoSQL) and familiarity with schema design.
• Experience with version control (e.g., Git) and CI/CD practices.
• Excellent problem-solving, debugging, and communication skills.

Preferred Skills (Bonus)

• Experience with containerization and orchestration (Docker, Kubernetes).
• Exposure to cloud platforms (AWS, Azure, GCP).
• Knowledge of message queuing (Kafka, RabbitMQ).
• Familiarity with automated testing frameworks and best practices.

Education

• Bachelor’s or Master’s degree in Computer Science, Engineering, IT, or a related field (or equivalent practical experience)

• Experience building applications using NodeJS and frameworks such as Express.
• Thorough understanding of React.js and NodeJS including its core principles.
• Ability to understand business requirements and translate them into technical requirements.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Strong experience with MongoDB, Postgres
• Highly proficient with Vue.js framework and its core principles such as components, reactivity, and the virtual DOM
• Familiarity with the Vue.js ecosystem, including Vue CLI, Vuex, Vue Router
• Good understanding of HTML5 and CSS3, and Sass 
• Understanding of server-side rendering and its benefits and use cases

Responsibilities and Duties

  Can work on live projects of international clients.

  Can handle multiple projects

  Error-free coding.

Requirement -

  Minimum 3 Years Experience.

  Knowledge in Custom PHP, Codeigniter, Laravel

  Knowledge in MYSQL

  Knowledge in HTML5, CSS3

  Knowledge in Javascript

  Knowledge in Jquery

  Knowledge in Ajax

  Knowledge in Web API & Rest API

  Knowledge in Third Party API Integration

1.Atleast 1.5 - 3 yr Experience in Mongodb

2.Overall 4-10 yrs Experience  in PHP/MERN Stack Development

3.Strong Experience in large data set

4.Strong Knowledge in anyone of PHP ( Yii2, Larvel,Codeigniter)

5.Good understanding of Code optimization.

6.Excellent in Designing & Architecture, handle AWS(Amazon Web Services) for our product in Financial domain.

7.Expert in working on core PHP,Oops,MySQL,Javascript,Ajax,HTML5,CSS3,& JQuery technologies

8.Proficient Understanding of Code Version Tools Such as Git ,Bit Bucket

9.The candidate should be well versed with problem solving skills,task breakdown  & code reviewing.

• Minimum 2years working experience in Application development using Angular 5/6.
• Strong proficiency in JavaScript and the JavaScript object model, JS MVC frameworks, redux such as Angular5/6, State Management With NgRx(Required).
• RestAPI Integration via Http,
• ThirdParty Integrations (Angular Material or PrimeNG),
• Lazyloading ( custom preloading Strategy ),
• Validation,
• Reactive Architecture ( RxJs Observables & Operators )
• Unit Testing (*not mandatory but would be a plus),

Responsibilities and Duties

• Be part of a full team delivering a complete front-end application
• Ensuring high performance on mobile and desktop
• Cooperating with the back-end developer in the process of building the RESTful API
• Develop/Design, implement, and test high-quality web applications in a cloud-based environment.
• Help brainstorm and plan new applications and web services.
• You will take ownership of technical problems and their resolution, including proactively
• Communicating with product managers, developers, architects, and the operations team.
• Provide accurate effort-estimates for deliverables.
• Be committed to the deadlines.

Responsibilities

• Deliver products on scope, time and with the highest quality
• Set up coding standards and processes in the team 
• Ensure adherence to engineering best practices, scalable architecture and modular design
• Lead efforts of a rapidly growing engineering team of strong individual contributors
• Lead design and code reviews and ensure high quality in implementation
• Ensure performance and security criteria are met
• Communicate technical directions to all levels within the company
• Report the status of work and present solutions 
• Contribute to organization-level goals like talent hiring, people skill development, etc.

Qualifications

Required Experience

• Love for Software and the Microsoft tech stack.
• 4+ years of experience with .NET, C#, ASP.NET, Microsoft Azure, etc
• Passion for upcoming tech; experience/tinkering with ASP.NET Core, Azure Cosmos DB, etc
• Basic SQL programming 
• Ability to work with client-side scripting languages; newer frameworks and paradigms such as React, Flutter or Angular
• 2+ years of experience developing large/complex application end-to-end

Technical Skills

• Proficiency in Web Development is required.
• Strong middle-tier development (API's).
• Should be hands-on with the technical deliverables.
• Very strong software engineering - design, development and testing, experience.
• Good understanding of design / architectural patterns and automation platforms.

Other Skills

• Excellent written and oral communication, team skills
• Ability to handle ambiguity and collaborate across multiple groups
• Ability to manage multiple projects/tasks concurrently and drive them to success
• Facilitate collaboration in cross-company discussions (i.e. vendor teams)
• Sound problem resolution, judgment, negotiating and decision making skills
• Excellence in strategic thinking, leadership and be able to influence without authority.
• Ability to rapidly assimilate new information and techniques