Software Engineer II

Location: Bangalore

Experience: 5 to 10 years

Joiners: Immediate / Notice Period < 30 days

Company: Wissen Technology

🔍 Job Overview:

We are looking for a passionate and skilled Fullstack Developer with strong backend expertise in Java and advanced frontend proficiency in React, JavaScript, and TypeScript. The ideal candidate will have a deep understanding of core computer science concepts like Multithreading, Collections, and Immutability, and should be highly proficient in building scalable, maintainable systems.

🛠️ Key Responsibilities:

• Design and develop robust, scalable backend systems using Java (preferably Java 8 or higher).
• Build interactive, high-performance UIs using React.js, JavaScript, and TypeScript.
• Implement complex business logic with clean and maintainable code.
• Write efficient, thread-safe code utilizing Multithreading, HashMaps, HashSets, and Collections.
• Work with iterators and immutability principles to build reliable data flows.
• Collaborate with product managers, designers, and QA teams in an Agile environment.
• Troubleshoot and debug production issues as needed.

✅ Must-Have Skills:

• Strong programming experience in Core Java, Multithreading, and Java Collections Framework.
• Solid knowledge of React.js, JavaScript (ES6+), and TypeScript.
• Hands-on with HashMap, HashSet, Iterators, and Immutable Data Structures.
• Experience working with REST APIs, Spring Boot, and microservice architectures.
• Familiarity with version control systems like Git and CI/CD pipelines.
• Strong problem-solving and analytical skills.

💼 Good to Have:

• Exposure to cloud platforms (AWS, GCP, Azure).
• Experience with state management tools like Redux or Context API.
• Knowledge of performance optimization and memory management in JavaScript.

MERN Stack Devolper:-

Job Description: -**

Full Stack Developer will work closely with cross-team to discover effective and elegant solutions to complex problems.

Excellent knowledge of HTML, CSS, Material-UI and Responsive.

Strong concepts of Javascript, ReactJs, NextJS.

Should have Excellent Experience of Node.js.

In-Depth knowledge of Express Js, JavaScript,

Should have experience in MongoDB, GraphQL, and any graph Database

Experience working with REST APIs.

Good Knowledge of AWS – Beanstalk, EC2, S3, Lambda, Cloud Watch.

Good Knowledge of JSON, API, and JWT.

Good Knowledge of Firebase – Authentication, Firestore, Realtime DB, Hosting.

·Good understanding of/experience with CI tools (Jenkins, Github Actions) and testing frameworks

Good to have Agile Continuous Deployment experience.

Ability and willingness to manage multiple projects/tasks.

Great collaborator who takes initiative, asks questions, explains themselves clearly, and are open to feedback

Ability to Identify and fix production and non-production application issues as a part of the deployment.

Should have completed B. Tech and 2+ years of experience in IT department

Understanding accessibility and security compliance (Depending on the specific project)

User authentication and authorization between multiple systems, servers, and environments.

Integration of multiple data sources and databases into one system

Understanding fundamental design principles behind a scalable application.

Good communication and language skills.

Strong focus on performance optimizations, caching, and scalability.

Ability to deal well with ambiguous/undefined problems; ability to think abstractly.

No salary bar for a good candidate

Job Description: Software Engineering –Sr. Software Engineer

Key Responsibilities - Responsible for design, problem solving, develop, modify, debug and/or maintain software system for one or more specific modules within a large software system scope

Must have:

React JS, Java script, Jquery, JSP, Struts, Java, Spring Framework, Database

Preferred Skills/Experience:

• 7+ years of hands-on software development experience in designing and implementing complex, distributed applications.

Knowledge on front end technology is must such as React JS / Angular

• Knowledge and real time experience in Designing, Development, and Maintenance of Scalable, Distributed applications.

• Strong experience in Java, Spring Boot-based application on RDBMS (SQL Server ).

• Hands on experience with frameworks like ReactJS, AngularJS, NodeJS and designing Microservice/Event-driven architecture.

• Experience with cloud migration (AWS or Azure) and managing the development of cloud-based applications and development of APIs, web services.

• Capable of troubleshooting errors, finding root causes, resolving failures in real time.

• knowledge of Relational Databases, SQL and ORM Technologies(Hibernate, JPA, Spring Data).

• Experience with version control and source code management tools such as Git, GitHub and Bitbucket.

• Thorough understanding of Java and J2EE Internals (Class Loading, Memory Management, Transaction Management.).

• Knowledge on creation of CI/CD pipelines using Jenkins, Groovy and GitHub actions workflows.

• Knowledge on working and leading Agile/Scrum development cycles.

• Implement test cases using Junit, Mockito, Cucumber, jest

Professional development experience, working the Full stack on large scale B2B, SaaS products. • Expertise with learning new technologies and strong experience with our tech stack AngularJS, JavaScript, Node.js, Go, React.js and Postgres. • Bachelor’sin Computer Scienceorsolid knowledgeof CS fundamentals(OOP, designpatterns, algorithms, etc...) • Experience and adesire towork in a fast-paced environment. • We are a leading cloud-based open platform used by some of the most prestigious companies around • You will get to work with some of the most complex technologies on the market today • You will have an opportunity to work at all levels of the organization.

FULL STACK DEVELOPER

Responsibilities

• Develop interactive, user-friendly applications using the latest frameworks

• Deliver across the entire application life cycle in the stages of concept, design, build, deployment, test, and release to app stores and support.

• Collaborate with product owners and designers to translate product requirements and designs into reality

• Own and develop feature sets that involve responsive UIs and restful services to ensure a seamless user experience.

• Interact with the product, engineering, and business teams across geographies to leverage their expertise and contribute efficiently.

• Ensure that all components and the overall application are robust and easy to maintain.

• Continuously optimize and improve the application performance

• Proactively acquire knowledge of the latest industry trends and best practices in mobile technologies to implement them and educate the teams to increase the effectiveness of technology solutions.

Requirements

• B.Tech/ B.S. or M.Tech/ M.S. or equivalent in Computer Science, IT, or related field

• 2-6 years of experience

Mandatory Skills

• 2+ years of experience designing and building production-level web applications including:

• Programming knowledge in JavaScript, NodeJS

• Good knowledge in developing front-end software, with deep experience in one or more relevant

front-end frameworks (ReactJs, Angular, Vue etc.).

• Expertise in Web/mobile app development using React Native

• Experience in product development on mobile platforms using React Native

• Familiar in developing backend (JS/Node/C#).

• Basic understanding of RDBMS databases

• Working knowledge of design patterns, SOLID principles, and development best practices. Ability to

independently write code and unit test cases

• Mastery of standard frontend technologies like modern HTML, CSS, JavaScript (we use React,

Redux, Webpack, NodeJS etc.), REST, and JSON.

Desirable Skills

• ES6/7, Node, package management /webpack/parcel.

• Exposure to data modeling with any of the database technologies.

• Full stack understanding of web/mobile/API/database development concepts and patterns.

• Experience in DevOps would be a plus.

• Experience in TypeScript would be a plus.

• Excitement about the latest trends in application design

• Collaborate with multiple stakeholders to understand the business context
• Take responsibility for developing product features
• Implement development best practices

• Rich experience in Javascript and front end frameworks like React, Angular or Vue
• Build a backend APIs using Java, Node, Python or GoLang
• Proficiency in leveraging Cloud Native components in AWS, Azure or GCP
• Experience in building scalable applications using Microservices principles is a plus
• Experience in designing for performance is a big plus
• Ability to write high quality code
• Experience in polygot persistence using databases like relational (MySQL, Postgres) and NoSQL (MongoDB, Cassandra, DynamoDB, Redis etc)
• Familiarity with DevOps tools and technologies is a plus
• Passion for continuous learning of new technologies

We are looking for a seasoned full-stack developer(JavaScript) to build out and manage our Web and API infrastructure. Successful candidates will have a minimum of three years’ recent experience with all of the skills listed below.

Our project entails implementing our pre-approved UI, constructing our API, connecting the two, and setting up our cloud infrastructure. This includes all associated areas such as database and architecture design.

• Design and implementation of the overall web architecture
• “Pixel-perfect” implementation of our approved user interface
• Ensuring the entire stack is designed and built for speed and scalability
• Design and construction of our REST API and integration with front-end
• Design and implementation of continuous integration and deployment
• Write clean, great quality, scalable and maintainable code with thorough testing
• Troubleshoot, test and maintain the products and databases to ensure strong optimization and functionality

At least two years’ experience with:

• Writing HTML, CSS, and JavaScript. Being up on latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum)
• A relevant experience in back-end programming with NodeJS
• A relevant experience in front-end programming with ReactJS
• Database design and management of MySQL and DynamoDB
• Cloud infra management and deployment for the relevant environment
• Ideally, familiarity with Sass and Webpack
• Thorough understanding of user experience and possibly even product strategy
• Experience implementing testing platforms and unit tests
• Proficiency with Git
• Appreciation for clean and well documented code
• Knowledge of Serverless Framework and AWS Lambda is a plus.

Expertrons is an initiative by experienced professionals turned entrepreneurs (IITB alum) having built a few of India's largest companies across multiple domains. This will be an opportunity to directly work with the founders. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of adapting to changing market conditions, willing to join a growing startup, a rational and no-nonsense approach and practical thought process.

Good-to-Have Attributes: Start-up experience, Android experience would be a plus. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of building a robust, scalable tech platform adaptable to changing market conditions, willing to join a growing startup, a rational and no non-sense approach and practical thought process.

Responsibilities and Duties

Good-to-Have Attributes: Start-up experience, Android experience would be a plus. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of building a robust, scalable tech platform adaptable to changing market conditions, willing to join a growing startup, a rational and no non-sense approach and practical thought process.

Required Experience, Skills and Qualifications

Required Skills: Database - MySQL, NoSQL (MongoDB), Restful Architectures, AWS, SAAS, JavaScript, PHP, Cordova