Lead Front-End Developer

Frontend Developers

• Contract To Hire (Initial Engagement: 6 months)

Experience: 5+ years

Mandatory Skills:

● React.js

● React Native

● JavaScript

● Experience in developing scalable and maintainable web and mobile applications

● Frontend architecture and reusable components

● State management

● REST API/backend service integration

● Application performance optimisation

● Authentication/authorisation and frontend security

● Git and pull-request-based development

● Clean, reusable and testable code

● Agile/product development experience

● Code reviews, debugging and production issue resolution

Good to have:

● TypeScript

● Next.js

● Jest / React Testing Library

● CI/CD

● Application monitoring

● Mobile deployment

Title: React.js Lead Developer (Svelte Js experience would be a plus) Location: ChennaiMode:

Onsite - Work from OfficeType:

ContractDuration: Long term

We are looking for an experienced Technical Lead – Frontend Engineering with strong expertise in React.js and Svelte.js to lead the design and development of scalable, high-performance web applications. The ideal candidate will be a hands-on technical leader who can drive frontend architecture, guide engineering teams, establish development standards, and collaborate closely with product, UX, backend, and architecture teams.

• Requirements: A minimum of 7+ years of experience in software/frontend application development.
• Strong hands-on development experience with React.js.
• Strong hands-on development experience with Svelte.js and/or SvelteKit.
• Advanced proficiency in JavaScript ES6+ and TypeScript.
• Solid experience of HTML5, CSS3, SCSS, Responsive Web Design, and Modern frontend development practices
• Strong experience developing reusable UI components and component libraries.
• Experience with frontend state management solutions such as Redux, Redux Toolkit, Zustand, Context API, and Svelte Stores
• Experience integrating applications with REST APIs and/or GraphQL.
• Strong knowledge of asynchronous programming and API communication.
• Strong understanding of frontend application architecture and design patterns.
• Experience with Git-based source-control platforms.
• Experience with modern build and development tools such as Vite, Webpack, npm, Yarn, or pnpm
• Experience with unit and frontend testing frameworks.
• Strong debugging, troubleshooting, and performance optimization skills.

Job Description:

https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link

About NonStop io Technologies:

NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud

group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment

Brief Description:

NonStop io is seeking a proficient React.js developer to join our front-end development team. In this position, you’ll be mainly crafting and integrating UI components through React.js methodologies and workflows like Mobx and Redux.

Responsibilities:

● Developing and implementing UI components using React.js

● Collaborating with cross-functional teams to design and ship new features

● Building reusable components and front-end libraries for future use

● Translating designs and wireframes into high-quality code

● Optimizing components for maximum performance across various web browsers

● Troubleshooting and debugging issues to ensure smooth user experiences

● Participating in code reviews to maintain code quality and consistency

● Improvement and optimization of existing codebase

● Keeping up with industry trends

● Identifying issues with technologies and architecture and then implementing solutions

● Assist with ticket creation, refinement, and estimation

● Participate in sprint planning and ticket distribution for frontend team

Qualifications & Skills:

● Proficiency in React.js and its core principles

● Strong JavaScript, TypeScript, HTML5, and CSS3 skills

● Experience with popular React.js state management libraries and approaches (such as Mobx, Redux, and Context API)

● Familiarity with RESTful APIs and integration

● Knowledge of modern authorization mechanisms, such as JSON Web Tokens

● Understanding of front-end build tools and pipelines

● Familiarity with any one of backend technologies such as Node.js, Java, or Python

● Excellent problem-solving and communication skills

● A strong attention to detail, and a passion for delivering high-quality code

● Expertise in designing scalable and efficient front-end architecture

● Adaptability to changing project requirements and priorities

● Experience with version control systems, particularly Git

● Experience working in Scrum and familiarity with Atlassian (Jira, Confluence, Bitbucket)

● Experience with diverse applications and architectural patterns

● A degree in computer science, software engineering, or a related field

● Strong understanding of object-oriented programming principles and design patterns

● Familiarity with automated testing frameworks and methodologies

● Excellent problem-solving skills and attention to detail

● Strong communication skills and ability to work effectively in a collaborative team environment

● Ready to be a tech-agnostic engineer and comfortable to shift on any tech stack

● Comfortable working with AI (Claude code, Cursor etc)

If you're passionate about technology and want to work on impactful projects, we'd love to hear from you

NEED TO HAVE :

1) Have some knowledge of front end like React.JS

2) HTML, CSS

3) Strong in JavaScript concepts

4) Good communication skills

5) Loves to code

GOOD TO HAVE :

1) Experience with type script will be a plus

2) Experience with Nest.JS framework will be a plus

3) Strong hold on ES6 principles.

4) Familiar with TDD ( Test Driven Development ) will be a plus.

5) Familiar with working in CI / CD will be a plus

6) Micro-Service architecture knowledge will be an added benefit.

You can contact me on this WhatsApp number: Nine three one six one two zero one three two

Role Description

This is a full-time role for a React.js Developer who will be responsible for developing, maintaining, and optimizing responsive and scalable web applications. The successful candidate will work closely with UI/UX designers, backend developers, and product teams to convert designs and requirements into high-quality, production-ready applications. The role requires strong problem-solving skills, attention to detail, and the ability to take ownership of features from development through deployment.

Key Responsibilities

• Develop responsive and scalable web applications using React.js.
• Build reusable and maintainable frontend components.
• Convert UI/UX designs and Figma prototypes into functional web interfaces.
• Integrate frontend applications with REST APIs and backend services.
• Manage application state using Redux, Context API, Zustand, or similar technologies.
• Optimize applications for performance, responsiveness, and scalability.
• Debug and resolve frontend issues across development and production environments.
• Ensure cross-browser and cross-device compatibility.
• Collaborate with UI/UX designers, backend developers, QA, and product teams.
• Participate in code reviews and follow clean coding and development practices.
• Write and maintain appropriate tests for frontend applications.
• Stay updated with modern frontend technologies and best practices.
• Take ownership of features from development and testing through deployment and maintenance.

Requirements

• Strong proficiency in JavaScript (ES6+) and React.js.
• Good understanding of React Hooks, component architecture, props, state, and Context API.
• Strong knowledge of HTML5 and CSS3 and responsive web development.
• Experience integrating REST APIs and working with JSON.
• Experience with state management libraries such as Redux, Zustand, or similar.
• Experience with Git and GitHub/GitLab.
• Understanding of frontend performance optimization and browser debugging.
• 3+ years of hands-on experience in frontend development with React.js.
• Experience with TypeScript and Next.js is preferred.
• Familiarity with UI libraries such as Tailwind CSS, Material UI, or similar is a plus.
• Experience with frontend testing tools such as Jest, Vitest, or React Testing Library is a plus.
• Good problem-solving and analytical skills.
• Strong communication and collaboration skills.
• Ability to work independently, prioritize tasks, and meet deadlines.
• A proactive approach to learning and solving technical problems.

Candidates with strong practical experience, personal projects, GitHub contributions, or demonstrable frontend work may also be considered in place of extensive professional experience.

Juntrax is a global integrated office management platform for SMEs.

**What we are looking for : **

* Someone who has led a team of developers in a product-centric company by providing technical direction for the design, development, testing, and release of a product.  

* Designed scalable Applications 

* Possesses hands-on experience building end to end systems 

* Good architectural & product design skills 

* Strong coding, data structures and algorithms background

* The ability to own end to end responsibility - right from requirement gathering to product release 

* The ability to produce bug-free and production-grade code 

* Engage with stakeholders and ensure the product is on target for timely development.

* Possess the following technical skills: Javascript,MeteorJs, NodeJS, MongoDB, ExpressJS, ReactJS, Elastic Search, AWS, ReactNative

* Must be highly motivated and be willing to take up the challenges with working in a start-up.
- Must have entrepreneurial skills.

**Main Responsibilities: **

Build & lead a team by example 

* Develop a deep understanding office management product and startup ecosystem and execute to the release of the product 

* Architect, design, and document processes and procedures for future releases.

* Should be able to help out in coding and performing code reviews with the team in MERN/Meteor Stack.**

**What we have to offer : **

* -Work with a performance-oriented team driven by product ownership 

- Learn to design system for high accuracy, efficiency, and scalability 
- Equity and Co-foundership will be offered

- Office Culture based on collaboration and desire to deliver the best product

Sapical  is looking for an experienced Full Stack Technical Lead to provide technical leadership, engineering governance, delivery management, and people leadership across multiple software development projects.

The role combines hands-on full-stack technical expertise with project delivery and team management responsibilities. You will be responsible for ensuring the successful delivery of scalable, secure, and high-quality enterprise applications.

The ideal candidate should have strong experience across React.js, Node.js, MongoDB, APIs, integrations, cloud technologies, and microservices, along with proven experience leading engineering teams.

Experience Required

• 8+ years of overall software engineering experience
• At least 3 years of experience in a Technical Lead, Engineering Lead, or Delivery Lead role
• Experience managing teams of 10+ members
• Strong experience in full-stack application development and technical leadership

Key Responsibilities

• Lead technical design, architecture reviews, and engineering governance across multiple projects.
• Provide technical oversight for React.js, Node.js, MongoDB, APIs, integrations, and cloud-based solutions.
• Manage multiple project streams, delivery plans, risks, dependencies, and resource allocation.
• Drive Agile delivery practices including sprint planning, estimation, tracking, and release management.
• Conduct code reviews and ensure adherence to engineering standards and best practices.
• Mentor development teams and support technical and professional growth.
• Collaborate closely with stakeholders, business users, architects, QA, and DevOps teams.
• Monitor project progress and provide regular status reporting to leadership.
• Support hiring, onboarding, performance management, and team development.
• Ensure successful delivery within agreed scope, schedule, quality, and budget expectations.

AI & Automation

• Drive the strategic adoption of AI and automation technologies across engineering teams.
• Identify opportunities to improve engineering productivity and delivery efficiency through AI and automation.
• Help reduce development effort and time-to-market through effective adoption of emerging technologies.

Technical Requirements

Frontend Technologies

• Strong hands-on experience with React.js
• JavaScript (ES6+) and TypeScript
• Modern JavaScript frameworks and state management libraries
• Experience building responsive and performance-optimized web applications

Backend Technologies

• Strong experience with Node.js
• Express.js and/or NestJS
• REST APIs and GraphQL
• Microservices architecture
• API integrations and enterprise application development

Databases

Experience with one or more of:

• MongoDB
• PostgreSQL
• MySQL
• MS-SQL

Cloud & DevOps

• Docker
• CI/CD pipelines
• AWS and/or Azure
• Monitoring and observability tools

Leadership & Delivery Competencies

• Project planning and delivery management
• Agile/Scrum methodologies
• Stakeholder management
• Risk and issue management
• Resource planning and team allocation
• Executive reporting and communication
• Team leadership and mentoring
• Continuous improvement and process governance

Preferred Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related discipline
• Experience delivering enterprise-scale digital transformation projects
• Experience managing distributed teams
• Experience working in client-facing engagements

What Success Looks Like

• Successful delivery of multiple concurrent projects
• High customer and stakeholder satisfaction
• Strong engineering quality and governance
• Effective team leadership and retention
• Consistent adherence to project timelines and delivery commitments

Why This Role?

This is an opportunity to take ownership of full-stack engineering and technical delivery, while leading teams and driving engineering excellence across enterprise projects.

You will play a key role in shaping technical solutions, improving engineering processes, mentoring teams, and driving the adoption of AI and automation across engineering.

Key Skills

React.js | Node.js | TypeScript | JavaScript | Express.js | NestJS | MongoDB | PostgreSQL | REST API | GraphQL | Microservices | Docker | CI/CD | AWS | Azure | Agile | Technical Leadership | Team Management | AI & Automation

Key Responsibilities

Frontend & Extension Development

• Build and maintain highly responsive, modern user interfaces using React.js for web applications, browser extensions, and Electron-based desktop clients.

• Architect and develop modular, reusable UI components using Material-UI (MUI / Joy UI) and styled-components/Emotion.

• Manage complex multi-target build pipelines (Web, Extension, Electron) using Webpack and Craco.

AI Integration & Engineering

• Seamlessly integrate Generative AI capabilities into the frontend, including AI-driven chatbots, contextual AI suggestions, and RAG (Retrieval-Augmented Generation) interfaces.

• Collaborate closely with backend and AI specialists to consume AI-powered REST APIs and WebSocket streams, ensuring fluid and responsive user experiences.

• Implement robust markdown and code rendering (e.g., react-markdown) for rich AI conversational outputs.

Real-Time Data & State Management

• Implement low-latency, real-time communication features using Socket.IO for chat and collaborative functions.

• Efficiently manage complex application state, data fetching, and caching using modern tools like React Query and Axios.

Quality & Collaboration

• Work within a monorepo/workspace structure to maintain distinct client, component, and extension packages.

• Participate in code reviews to maintain high code quality, performance, and enterprise security standards.

• Collaborate with teams using Agile/Scrum methodologies for rapid and structured delivery.

Required Skills:

• Core Languages: Proficiency in JavaScript (ES6+) and TypeScript.

• Frontend Frameworks: Strong, hands-on experience with React.js (Hooks, Context), React Query, and React Router.

• Styling & UI: Deep understanding of HTML5, CSS3, and CSS-in-JS libraries (e.g., styled-components, react-jss). Hands-on experience with MUI (Material UI / Joy UI) is highly preferred.

• Architecture & Build: Experience configuring and optimizing builds with Webpack and Craco. Familiarity with npm workspaces/monorepos.

• Real-time & APIs: Ability to design and implement robust client-side integrations with RESTful APIs and WebSockets (Socket.IO).

• Agile & Workflow: Experience working with Agile and Scrum methodologies.

Preferred/Bonus Skills:

• Experience in building and packaging Browser Extensions and/or Electron applications.

• Genuine curiosity and awareness of Generative AI workflows (e.g., prompt engineering concepts, handling streaming AI responses).

• Experience with rich text editing or markdown rendering in React.

Job Description: Tech Lead – AI & Technology

Role Title: Tech Lead – AI & Technology

Location: Bangalore, India – Fully On-site

Experience: 5+ Years

Employment Type: Full-time

About the Role

We are looking for an experienced and hands-on Tech Lead to lead a small engineering team and drive the development of AI-powered applications, internal technology platforms, and modern IT solutions. The Tech Lead will be responsible for technical direction, architecture, development, code quality, team management, and end-to-end delivery of technology projects. The ideal candidate should have strong programming experience, particularly in Python and ReactJS, along with practical experience working with AI/ML technologies.

1. Technical Leadership & Team Management

• Lead and mentor a team of developers and technical team members.
• Own technical delivery across multiple projects and initiatives.
• Assign tasks, review progress, resolve technical blockers, and ensure timely delivery.
• Conduct code reviews and establish engineering best practices.
• Mentor team members and support their technical growth.

2. Software Development & Architecture

• Design and develop scalable, secure, and maintainable applications.
• Lead backend development using Python and frontend development using ReactJS.
• Define application architecture, technology choices, APIs, integrations, and development standards.
• Review technical designs and ensure high-quality implementation.
• Troubleshoot complex technical issues and drive effective solutions.

3. AI & Technology

• Lead the development and integration of AI-powered applications and solutions.
• Work with AI/ML models, APIs, LLMs, Generative AI, and related technologies.
• Evaluate emerging AI tools and technologies and identify opportunities for practical implementation.
• Collaborate with product and business teams to translate requirements into AI-enabled technology solutions.

4. Project Delivery

• Own the complete technology lifecycle from requirements and architecture to development, testing, deployment, and maintenance.
• Plan sprints, estimate development efforts, and track technical milestones.
• Work closely with cross-functional stakeholders to understand requirements and deliver solutions.
• Ensure projects meet timelines, quality standards, security requirements, and performance expectations.

5. Engineering Quality & Infrastructure

• Establish standards for coding, testing, documentation, version control, and deployment.
• Ensure applications are scalable, reliable, and secure. l Collaborate on cloud infrastructure, APIs, databases, CI/CD, and deployment processes.
• Identify opportunities to improve system performance and engineering efficiency.

Technical Skills – Must Have

• 5+ years of software development experience.
• Strong hands-on experience with Python.
• Strong experience with ReactJS / React.
• Experience leading or managing technical team members.
• Strong understanding of AI/ML and Generative AI technologies.
• Experience with APIs, databases, Git, and software development lifecycle.
• Strong understanding of application architecture and system design.
• Experience building and deploying production-grade applications.

Technical Skills – Good to Have

• Experience with LLMs, RAG, AI agents, or Generative AI applications.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Experience with Docker, CI/CD, and DevOps practices.
• Experience integrating third-party AI APIs and services.
• Experience working in startups or fast-paced technology environments.

What We Are Looking For

• Strong technical ownership and problem-solving ability.
• Ability to balance hands-on coding with team leadership.
• Excellent communication and stakeholder management skills.
• Ability to mentor developers and drive accountability within the team
• Strong interest in AI and emerging technologies.
• A proactive, ownership-driven approach with the ability to work in a fast-paced environment.

Why Join Us?

• Work on AI-powered technology with meaningful social impact.
• Lead a small, high-ownership technology team.
• Work across AI, software engineering, and modern IT infrastructure.
• Opportunity to shape technology architecture and engineering practices from the ground up.
• Collaborative and fast-moving environment with significant technical ownership.