Full Stack Developer (Java and React.js) (Remote)

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.

Engineer the Future of AI-Powered Recruitment Applications

About Us:

At PyjamaHR, we're creating recruitment software so intuitive you could use it in your pajamas. We integrate cutting-edge LLMs and Generative AI technologies into practical, powerful applications that are transforming how 525+ companies hire talent. While others are still talking about AI potential, we're shipping AI-powered features that deliver real value. As we scale from Bangalore to the US market, we need exceptional full-stack talent who can turn advanced AI capabilities into elegant, user-friendly experiences.

The Role:

As a Senior Full-Stack Engineer at PyjamaHR, you'll build the applications and interfaces that bring our AI capabilities to life. This isn't about training models—it's about implementing, integrating, and optimizing Generative AI within robust full-stack applications. You'll work across our entire technology ecosystem to create seamless experiences that leverage AI to solve real recruitment challenges. Your code will directly impact how companies discover, evaluate, and hire talent.

What You'll Do:

• Implement AI-Powered Features - Integrate Generative AI capabilities into practical, user-facing applications
• Build End-to-End Solutions - Develop both frontend experiences and backend services that leverage AI capabilities
• Create Scalable Architectures - Design systems that grow with our rapidly expanding user base
• Optimize Performance - Ensure our applications remain responsive even when processing complex AI operations
• Enhance User Experiences - Translate advanced AI capabilities into intuitive, accessible interfaces
• Drive Technical Excellence - Set standards for code quality and engineering practices across the team
• Collaborate Across Functions - Work with product, design, and data teams to deliver cohesive solutions
• Solve Complex Challenges - Apply your technical creativity to the unique problems of AI-powered recruitment

Who We're Looking For:

• 3-5 years of full-stack development experience building production applications
• Experience implementing and integrating Generative AI into web applications
• Expertise with either Django/React or Node.js/React technology stacks
• Strong experience with cloud platforms (Azure preferred, AWS acceptable)
• Proven ability to build performant, scalable web applications
• Excellence in modern JavaScript/TypeScript and frontend development
• Solid understanding of software architecture principles
• Product-minded approach to engineering decisions
• Ability to thrive in fast-paced environments with evolving priorities
• Bachelor's or higher in Computer Science or equivalent practical experience

The Rewards:

• Salary range of ₹30-40 LPA for exceptional talent (with room to negotiate for truly outstanding candidates)
• Equity package with significant growth potential
• Minimal bureaucracy and maximum impact
• Autonomy to make important technical decisions
• The opportunity to shape an industry-leading product
• Collaborative, innovation-focused work environment

Location: Bangalore (Koramangala 8th Block)

This role is perfect for engineers who want to apply their full-stack expertise to implement cutting-edge AI technologies in real-world applications. If you're excited about building the interfaces and systems that make advanced AI accessible and valuable to users, we want to talk to you.

Job : Full Stack Developer                                

Location:Hyderabad

Mode:Hybrid

Experience : 5 +

Skills: React Js,Node Js, Javascript , AWS

We are seeking a talented Full Stack Developer to join our dynamic team. The ideal candidate should have a strong background in Node.js, React.js, AWS, and proficient skills in JavaScript. As a Full Stack Developer, you will be responsible for designing, developing, and maintaining web applications throughout the entire software development lifecycle. Your expertise will contribute to the creation of innovative solutions that enhance user experience and drive business growth.

Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop server-side logic using Node.js, ensuring high performance and responsiveness to requests from front-end components.
• Build reusable and efficient front-end components using React.js.
• Implement and maintain API integrations with third-party services.
• Optimize applications for maximum speed and scalability.
• Collaborate with other team members and stakeholders to troubleshoot, debug, and optimize application performance.
• Stay up-to-date with emerging technologies and industry trends to ensure the best practices are consistently applied.
• Implement security and data protection measures.
• Participate in code reviews and provide constructive feedback to team members.
• Deploy applications on AWS and manage cloud infrastructure.

Description:

• 5+ years of overall experience with 3 years of exp in React.js,Node.js
• Bachelor's degree in Computer Science, Engineering, or a related field.
• Proven experience as a Full Stack Developer or similar role.
• Strong proficiency in JavaScript and its modern frameworks (Node.js, React.js).
• Experience with AWS services and cloud infrastructure.
• Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks/libraries.
• Recommended Experience: Proficiency in Node.js, Typescript, React, and MongoDB.
• Knowledge of database systems (SQL, NoSQL)
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
•  Experience with browser-based debugging and performance testing 
• Excellent problem-solving and communication skills.
• Ability to work both independently and collaboratively in a team environment.

How to Apply:

If you have a passion for backend development, possess the required experience, and are excited about contributing to innovative projects, we invite you to apply.

P99soft is an equal opportunity employer, dedicated to fostering diversity and creating an inclusive workplace for all employees.

We have openings for Fullstack / Backend / Frontend Developers who can write reliable, scalable, testable and maintainable code.

At Everest, we innovate at the intersection of design and engineering to produce outstanding products. The work we do is meaningful and challenging - which makes it interesting. Imagine each line of your code, making the world a better place. We work on five workdays weeks, and overtime is a rarity. If clean architecture, TDD, DDD, DevOps, Microservices, Micro-frontends, scalable systems resonate with you, please apply.

To see the quality of our code, you can checkout some of our open source projects: https://github.com/everest-engineering

If you want to know more about our culture:

https://github.com/everest-engineering/manifesto

Some videos that can help:

https://www.youtube.com/watch?v=A7y9RpqXAdA;

https://youtu.be/PPjyP1WPOn8" target="_blank">https://youtu.be/PPjyP1WPOn8

• Passion to own and create amazing product.
• Should be able to clearly understand the customer's problem.
• Should be a collaborative problem solver.
• Should be able a team player.
• Should be open to learn from others and teach others.
• Should be a good problem solver.
• Should be able to take feedback and improve continuously.
• Should commit to inclusion, equity & diversity.
• Should maintain integrity at work

• Familiarity with Agile methodologies and clean code.

• Design and/or contribute to client-side and server-side architecture.

• Well versed with fundamentals of REST.

• Build the front-end of applications through appealing visual design.

• Knowledge of one or more front-end languages and libraries (e.g. HTML / CSS, JavaScript, XML, jQuery, Typescript) JavaScript frameworks (e.g. Angular, React, Redux, Vue.js)

• Knowledge of one or more back-end languages (e.g. C#, Java, Python, Go, Node.js and frameworks like SpringBoot, .NET Core) 

• Well versed with fundamentals of database design.

• Familiarity with databases - RDBMS like MySQL, Postgres & NoSQL like MongoDB, DynamoDB.

• Well versed with one or more cloud platforms like - AWS, Azure, GCP.

• Familiar with Infrastructure as Code - CloudFormation & Terraform & deployment tools like Docker, Kubernetes.

• Familiarity with CI/CD tools like Jenkins, CircleCI, Github Actions..

• Unit testing tools like Junit, Mockito, Chai, Mocha, Jest

Responsibilities:

• Design, develop, and maintain software applications.
• Go the extra mile to identify customer needs and pain-points. 
• Relentless focus on delivering high quality, bug-free code.
• Help and mentor those around you to achieve the team and company goals.
• Closely work with the SRE and DevOps team to set up microservices infrastructure. 
• Maintaining and auditing code/design quality as per set guidelines and standards in assigned projects.
• Testing of completed tasks in ongoing projects in the team before sending updates to reporting authority/client.
• Participate in application design, code reviews and documentation.

Requirements:

• Experience in agile development process.
• Excellent knowledge of HTML5, CSS3.
• Excellent knowledge of JavaScript.
• Experience with cross-browser, cross-platform and design constraints on the web
• Good understanding and experience of working on Vue.js/React.js.
• Prior experience building REST APIs
• Hands-on experience with Node.js/Golang/Java + Redis + Elasticsearch.
• Experience with AWS/GCP is a plus
• Knowledge of version control systems like GIT.
• Experience in developing automated unit and functional tests
• 3 - 6 years of experience with a Bachelor's in Computer Science or related field

• 1-2 years of work experience, preferably in a startup
• An engineering degree from a reputed college or University
• Hands-on experience in developing end-to-end applications using Node.Js, ReactJs,
• Knowledge of HTML/CSS, web standards, best practices
• Experience of working with databases - MySQL, MongoDB
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• An experience in writing clean, semantic code with cross-browser compatibility in mind
• Proficient understanding of code versioning tools, such as Git/SVN
• Excellent coding and debugging skills
• A passion and the ability to make beautiful, smooth, delightful web experiences
• A Will-Do attitude

• A team of aces, from top-tier schools and startups, to work with
• A fast-paced, data-driven, and fun work environment
• A huge appetite for new, disruptive, creative and implementable ideas
• An open work culture

• Competitive salary
• Great working environment, opportunity to work directly with the founders on very exciting real-life problems.
• Opportunity to grow really fast.

• Shortlist
• Intro call of 15min
• 1-2 Tech rounds
• HR round
• Offer rollout