UI Developer at Wissen Technology · Mumbai, Navi Mumbai · 4 - 7 years · Profitable · Posted 29 Jul 2024

What you’ll do:
● Own and build next-generation web applications which are efficient, reusable front-end abstractions
and systems.
● Explore and design lively and compelling consumer experiences.
● Ensure that all the assigned systems are performing to scale.
● Actively participate in design and code reviews to build robust applications and prototypes
● You will mentor junior engineers on design and proper coding practices
What you will need:
● A deep expertise in Angular / React, Javascript, HTML5 and CSS3.
● Understanding of browser internals and a basic understanding of the network stack.
● Understanding of common design patterns followed in front-end projects.
● Basic awareness of application security practices and deployment techniques for front-end projects.
● Should have sound knowledge in computer science fundamentals like data structure, object-oriented
programming and possess excellent communication skills.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Medflix is a platform by PlexusMD (www.plexusmd.com/app), a network trusted and loved (4.4 stars on Playstore and 4.4 on Appstore) by more than 3 lakh doctors in India and working closely with leading healthcare providers and companies like AIIMS, Jaslok, Hinduja, Apollo, HCG, Elsevier, Association of Physicians of India, Indian Association of Cardio-thoracic surgeons, Society of Nuclear Medicine, Govt of Gujarat (HFW Dept), Govt of Haryana (SIFHW), McKinsey and company, Takeda, Mankind and others.
About the Role
Tech stack (expertise in all is not required, experience in some will be sufficient):
- React / Next.js (required, at least 1 year of experience)
- Express.js (required, at least 1 year of experience)
- Familiarity with cloud services (gcp / azure / aws)
- PostgreSQL (or expertise in any relational database)
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- Docker/Kubernetes deployment (good to have)
For this role we are looking for engineers with an entrepreneurial mindset, an understanding of how startups operate and who like to get their hands dirty when unknown things come their way. You will work closely with the product team to prioritise and ship features with a predictable cadence.
As this role is full-stack, you need to have a good understanding of frontend design and be obsessed with responsiveness and pixel-perfect behaviour. On the backend side, an OCD for efficiency and optimisation is a required personality trait.
Demonstrated history of solving hard problems (frontend/backend or both) is a great-to- have.
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While we ensure competitive compensation (plus ESOP options for deserving candidates), at Medflix, you will also have a strong say in how final solutions look. You will get the opportunity to learn to steer an accelerating rocket ship.
College credentials, background or years of experience are no bar for growth inside the company for enthusiasts who believe in our mission and demonstrate that passion to create a product that healthcare workers love.
Role : Senior Full Stack Engineer (Frontend Focus)
Location : Hyderabad/Bangalore/Gurgaon/Mumbai
Role Summary
We're looking for a **Senior Full Stack Engineer (Frontend Focus)** to build modern, AI-powered enterprise applications. You'll primarily focus on creating scalable, high-performance frontend experiences using React and Next.js, while contributing to backend services, APIs, and AI integrations where needed. You'll work closely with Product, Design, and AI teams to build intuitive, performant, and production-ready applications.
Minimum Qualifications
* 3–7 years of software engineering experience.
* Strong experience with React, Next.js, TypeScript, JavaScript, HTML, and CSS.
* Experience building and shipping production-grade frontend applications, including enterprise dashboards and data-intensive applications.
* Strong understanding of frontend architecture, state management (Redux, Zustand, Context API, or similar), rendering lifecycle, and performance optimization, including code splitting, lazy loading, bundle optimization, caching strategies, and Core Web Vitals.
* Experience building complex UI experiences using modern frontend technologies, including data visualization, Canvas, WebGL, Service Workers, and Web Workers.
* Experience building and integrating REST APIs and backend services using Node.js.
Preferred Qualifications
* Experience building AI-powered applications or AI agents using LangChain, LlamaIndex, CrewAI, or similar AI frameworks.
* Experience with vector databases and Retrieval-Augmented Generation (RAG) applications.
* Experience with DevOps practices and cloud platforms such as AWS, Azure, or GCP.
* Experience with Docker and Kubernetes.
* Experience building reusable component libraries, design systems, or micro-frontend architectures.
UniAbroad is a fast-growing platform helping students explore global education opportunities and connect with institutions worldwide. We aim to simplify the study abroad journey through technology-driven solutions.
Key Responsibilities
- Design, develop, and maintain web applications and platforms
- Write clean, scalable, and efficient code
- Collaborate with product, design, and hiring support teams
- Integrate APIs and third-party services
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Required Skills
- Strong knowledge of JavaScript, Python, or Java
- Experience with React / Node.js / Django / Laravel
- Understanding of databases (MySQL, MongoDB)
- Familiarity with Git and version control
- Basic understanding of REST APIs
- Good problem-solving and analytical skills
1–3 years of experience in software development
Experience working in a startup environment
Knowledge of cloud platforms (AWS, Azure, or GCP)
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Role: Full Stack Engineer
Location: Hyderabad/Mumbai/Bangalore/Gurgaon
Required Experience: 4-7 years
Role Summary:
We are looking for Software Engineers with deep experience in building highly scalable and reliable enterprise applications. We are looking for engineers who have experience building cloud based/cloud native solutions from scratch. This includes demonstrable expertise in an enterprise friendly backend framework. We expect the engineer to work in a team consisting of Project Managers, Designers, Data Scientists and Software Architects. This is an exciting opportunity to work in a fast paced and innovative environment along with a group of world class and entrepreneurial professionals.
Responsibilities:
• Design and develop user-friendly web interfaces using HTML, CSS, and JavaScript.
• Utilize modern frontend frameworks and libraries such as React, Angular, or Vue.js to build dynamic and responsive web applications.
• Develop and maintain server-side logic using programming languages such as Java, Python, Ruby, Node.js, or PHP.
• Build and manage APIs for seamless communication between the frontend and backend systems.
• Integrate third-party services and APIs to enhance application functionality.
• Implement CI/CD pipelines to automate testing, integration, and deployment processes.
• Monitor and optimize the performance of web applications to ensure a high-quality user experience.
• Stay up-to-date with emerging technologies and industry trends to continuously improve development processes and application performance.
Qualifications:
• Bachelors/Masters in Computer Science or related subjects or hands-on experience demonstrating working understanding of software applications.
• Knowledge of building applications that can be deployed in a cloud environment or are cloud native applications.
• Strong expertise in building backend applications using Java/C#/Python with demonstrable experience in using frameworks such as Spring/Vertx/.Net/FastAPI.
• Deep understanding of enterprise design patterns, API development and integration and Test-Driven Development (TDD)
• Working knowledge in building applications that leverage databases such as PostgreSQL, MySQL, MongoDB, Neo4J or storage technologies such as AWS S3, Azure Blob Storage.
• Hands-on experience in building enterprise applications adhering to their needs of security and reliability.
• Hands-on experience building applications using one of the major cloud providers, preferably GCP.
• Working knowledge of CI/CD tools for application integration and deployment.
• Working knowledge of using reliability tools to monitor the performance of the application.
About the Role
We are looking for a motivated Software Developer to join our team and help design, develop, test, and maintain reliable software applications. The ideal candidate should have strong programming fundamentals, problem-solving skills, and a willingness to learn new technologies.
Key Responsibilities
- Develop, test, and maintain web and software applications.
- Write clean, scalable, and well-documented code.
- Work with frontend and backend technologies to build new features.
- Identify and fix bugs, performance issues, and technical problems.
- Integrate APIs and third-party services when required.
- Work with databases and maintain data integrity.
- Collaborate with designers, developers, and other team members.
- Participate in code reviews and follow software development best practices.
- Stay updated with emerging technologies and development tools.
Required Skills
- Strong knowledge of HTML, CSS, and JavaScript.
- Knowledge of at least one programming language such as Python, Java, PHP, C++, or JavaScript/Node.js.
- Basic understanding of databases such as MySQL, PostgreSQL, or MongoDB.
- Familiarity with REST APIs and Git/GitHub.
- Good understanding of software development and debugging.
- Strong logical thinking and problem-solving abilities.
Preferred Skills
- Experience with React, Angular, or Vue.js.
- Experience with Node.js, Django, Flask, Laravel, or similar frameworks.
- Knowledge of cloud platforms such as AWS, Azure, or Google Cloud.
- Familiarity with AI/ML integration or automation is a plus.
Qualifications
- B.Tech/B.E., BCA, MCA, or a related degree.
- Freshers with strong programming skills are welcome to apply.
What We Offer
- Opportunity to work on real-world software projects.
- Learning and professional development opportunities.
- Collaborative and growth-oriented work environment.
- Exposure to modern technologies and development practices.
- Competitive salary based on skills and experience.
Job Overview
We are hiring a Senior Full-Stack Engineer to design and scale high-performance web applications. You will drive technical decisions using React, Node.js, and TypeScript while building event-driven cloud architectures.
Key Responsibilities
- Develop scalable frontend features using React and robust backend APIs with Node.js/TypeScript.
- Architect and deploy cloud-native microservices on AWS.
- Implement asynchronous communication using messaging tools like Kafka, RabbitMQ, SQS, or SNS.
- Optimize SQL/NoSQL databases and maintain automated CI/CD pipelines.
- Mentor junior developers and lead code reviews.
Required Skills
- 6+ years in full-stack software development.
- Mastery of TypeScript, React.js, and Node.js.
- Hands-on experience with AWS and modern messaging queues.
- Strong problem-solving and communication skills.
Location: Hyderabad
About StrideOne:
StrideOne is a unified tech-enabled financial platform and NBFC focused on enabling MSMEs and SMEs through structured credit solutions, receivables financing, and receivables management. We are designed to simplify access to capital, improve cash flow visibility, and support risk-aware financial decision-making for growing businesses across industries. With a steadily growing disbursement footprint, an expanding anchor network, and established partnerships with multiple lending institutions, StrideOne is entering its next phase of growth. The organisation is building a financial ecosystem that combines lending, receivables management, and data-driven workflows, positioning itself to scale sustainably while maintaining strong governance, portfolio quality, and operational discipline.
Key Responsibilities:
Architect & Design: Design and implement highly scalable, available, and secure web applications. You’ll be responsible for designing multi-tenant architectures, ensuring data isolation, and leveraging modern cloud infrastructure to ensure the platform scales efficiently.
Security Focused Development: Develop and enforce secure coding standards and best practices for cloud-based applications and APIs. Conduct regular code reviews with a focus on security vulnerabilities.
API & Microservices Design: Design and implement secure, scalable, and maintainable APIs and microservices that integrate seamlessly with the platform. Ensure the use of best practices for service discovery, communication, and fault tolerance.
Performance Optimization: Identify and resolve performance bottlenecks in the application and infrastructure, ensuring scalability and responsiveness under varying load conditions.
Compliance & Regulatory Requirements: Ensure that applications comply with industry standards and regulations (e.g., GDPR, HIPAA, SOC 2, ISO 27001). Assist with audits and security certifications.
Collaboration & Leadership: Work closely with product managers, QA engineers, and other stakeholders to define and implement new features and improvements. Collaborate with the infrastructure team to ensure seamless deployment and scaling of the application. Also mentor and guide junior engineers on secure coding practices and development techniques.
Security Automation & Monitoring: Implement logging, monitoring, and alerting systems to continuously assess the security posture of the application. Stay up to date with the latest security trends, vulnerabilities, and best practices. Promote security awareness and training within the engineering team.
Qualifications:
Experience: 2+ years of experience in software engineering, with a focus on developing secure and scalable multi-tenant web applications with customer data isolation and tenant-specific configurations.
Tech Stack: Proficiency in modern web technologies (Python is a plus), relational databases, and cloud platforms (AWS, Azure, GCP).
Microservices Architecture: Strong experience designing and developing microservices-based architectures. Familiarity with service discovery, API Gateway, inter-service communication, and distributed systems principles.
Scalability & Performance: Experience with designing highly scalable and performant systems. Knowledge of caching, database sharding, partitioning, and high-throughput systems.
Security Expertise: Understanding of cloud security principles, cryptography, identity and access management (IAM), and secure coding practices.
Analytical Skills: Strong problem-solving skills with the ability to analyze complex security issues and provide practical solutions.
Soft Skills: Strong communication skills with the ability to explain complex technical concepts to non-technical stakeholders. Experience working in agile, collaborative environments.
About the role
A Gurugram-based FinTech is hiring a Web Developer Intern (posted by Ziro.digital, the hiring partner). On-site, Sector 94, Gurugram. 6-month internship, 6 days/week, 10 AM–7 PM.
Skills
• Next.js
• Node.js and REST APIs
• MySQL or MongoDB CRUD
• HTML/CSS/JS ES6+ (Tailwind preferred)
What you'll do
• Build and maintain web applications end-to-end
• Frontend development in Next.js
• Backend development in Node.js
• Database operations (MySQL/MongoDB)
• Debugging and performance tuning
Perks
• Real-world projects
• Hands-on mentorship
• Full-time offer based on performance
Apply now — start date: immediate.

We have an existing academic journal publishing and management platform developed using:
- Next.js
- React
- Node.js
- PostgreSQL
- REST APIs
The platform is already functional and includes author, reviewer, editorial and admin workflows.
We are looking for an experienced Senior Next.js Developer / Frontend Tech Lead to work on an existing production application.
The primary requirement is to redesign and rebuild the frontend while reusing the existing backend, APIs, database and business logic wherever technically feasible.
This is not a greenfield project and we do not want unnecessary rewriting of the existing backend.
Key Responsibilities
- Study and understand the existing Next.js application and architecture.
- Review existing APIs and backend integration.
- Develop a completely redesigned, professional academic/publishing frontend.
- Convert Figma designs into clean, responsive Next.js interfaces.
- Integrate the new frontend with existing Node.js APIs.
- Maintain existing workflows and functionality.
- Work on author, reviewer, editor and admin dashboards.
- Develop responsive interfaces for desktop, tablet and mobile.
- Improve frontend performance, usability and maintainability.
- Ensure proper authentication and role-based access handling.
- Identify frontend/backend dependencies that may require minor backend changes.
- Follow clean coding standards and reusable component architecture.
- Work through Git with proper commits, branches and code reviews.
- Coordinate with UI/UX designer and QA during development.
- Ensure the redesigned application is production-ready.
Existing Modules
The existing platform includes functionality such as:
- Author registration/login
- Manuscript submission
- Manuscript tracking
- Peer-review workflow
- Reviewer dashboard
- Editorial workflow
- Publication processing
- Payment-related workflows
- Article/publication management
- Journal management
- Certificates
- Referral/credit functionality
- Admin dashboard
- Reports and operational dashboards
The exact modules and workflows will be provided during the project.
Required Skills
Must Have
- 4+ years of professional React/Next.js experience
- Strong Next.js knowledge
- React + TypeScript
- JavaScript/TypeScript
- REST API integration
- HTML/CSS
- Responsive design
- Git/GitHub/GitLab
- Experience working with existing production codebases
- Good understanding of authentication and authorization
- Ability to understand backend APIs and database relationships
Good to Have
- Node.js
- PostgreSQL
- Tailwind CSS
- Next.js App Router
- Dashboard/SaaS application development
- Experience with complex multi-role applications
- Experience with academic, publishing, research or workflow-based platforms
What We Are Looking For
We are looking for someone who can understand an existing application before changing it.
You should be comfortable working with an existing codebase rather than expecting to rebuild everything from scratch.
Strong attention to:
- UI quality
- UX
- Performance
- Clean architecture
- Reusable components
- Security
- Cross-browser compatibility
- Maintainability
is required.
Important
- Existing backend and database should be reused wherever possible.
- Do not rewrite existing functionality without approval.
- Existing production data must not be modified or exposed.
- Development will be performed in a staging environment.
- Git-based development is mandatory.
- NDA and confidentiality agreement will be required.
- Ownership of the developed code and project deliverables will belong to the company.
Selection Process
Shortlisted candidates will first be asked to:
- Review the existing application architecture.
- Understand the existing APIs and workflows.
- Identify what can be reused and what needs modification.
- Complete a small paid technical task.
- Discuss the proposed development approach and timeline.
Candidates who demonstrate strong understanding of the existing system will be preferred.
About Vijay Sales
Vijay Sales is a consumer electronics and appliances retailer, selling through its stores across India, its website and its app.
Our technology team builds the software the business runs on: order management, customer support automation over WhatsApp, reviews and ratings, and the dashboards our operations teams use every day.
The role
We are hiring full stack engineers who can take a feature from spec to production across React, Node.js and MongoDB.
You will work on customer-facing and internal products, often both in the same week. One sprint may be a review submission page used by customers on their phones. The next may be an API that pulls order status from our order management system for the support bot.
We are looking for engineers with 3 to 6 years of experience who are comfortable owning both the front end and the back end of what they ship.
What you'll do
- Build responsive, mobile-first interfaces in React using our in-house UI component libraries.
- Design and build REST APIs and background services in Node.js.
- Model data in MongoDB and keep queries fast as collections grow.
- Integrate with the systems the business runs on: order management, ERP, point of sale and ticketing.
- Build messaging flows over WhatsApp, email and SMS, including delivery tracking, retries and fallbacks.
- Work with the conversational AI team to expose order, invoice and support actions to the customer support bot.
- Write tests, review code and own your features in production, including monitoring and fixing what breaks.
- Work directly with product and operations teams to turn a business problem into a working release.
Our stack
React, Node.js and MongoDB are the core. Everything else in the table is what you will connect to or build alongside.
- Front end: React, with Vijay Sales' in-house UI component libraries
- Back end: Node.js services and REST APIs
- Database: MongoDB
- Messaging: WhatsApp Business, Amazon SES for email, RCS and SMS as fallback
- Conversational AI: LangChain and Rasa, behind the customer support bot
- Business systems: Order management (OMS), ERP, POS, Ticketing Systems
What we're looking for
- 3 to 6 years of professional experience building and shipping web applications.
- Strong JavaScript and TypeScript fundamentals: async patterns, the event loop, modules, error handling.
- Solid React skills: hooks, state management, component design, performance on low-end mobile devices.
- Hands-on Node.js experience: building REST APIs, authentication with JWT, role-based access, input validation.
- Working knowledge of MongoDB: schema design, indexing, aggregation pipelines.
- Experience integrating third-party APIs and webhooks, and handling their failures gracefully.
- Comfort with Git, code review, automated tests and CI/CD.
- Clear written and spoken communication. You will talk to operations and business teams, not only engineers.
Nice to have
- Experience with the WhatsApp Business API, Gupshup or similar messaging platforms.
- Exposure to LLM application development: LangChain, retrieval, tool calling, or bot frameworks such as Rasa.
- Background in retail, e-commerce or order management systems.
- Experience integrating with ERP or POS systems.
- Familiarity with AWS, Redis and message queues.
- React Native or other mobile app experience.
Why join and how to apply
- Your work reaches real customers and store teams quickly. There is very little distance between a release and the people who use it.
- You own features end to end, from the first conversation with the business team to production.
- You get hands-on exposure to conversational AI and LLM-based products alongside core full stack work.












