Frontend Developer/Tech Lead – ReactJS

Frontend Focused Software Development Engineer

We make websites conversational. Our AI agents turn any website into an interactive experience — chat widgets, intelligent search, and AI embeds that let users ask questions, get answers, and take action without navigating pages. We’re a fast-moving product startup building at the intersection of design and AI, and we need a frontend engineer who brings both craft and conviction to

what they ship.

What We Look For First

Before anything else, we review your work. This is how we assess every candidate:

• GitHub profile — active, with real production repositories. We look at commit consistency, code architecture, folder structure, and how you make decisions under constraints. Boilerplate clones and tutorial repos do not count.
• Live deployed projects — at minimum two publicly accessible web applications. We open them in the browser, resize the window, throttle the connection, and interact with them. We are evaluating visual polish, responsiveness, interaction quality, accessibility, and performance — not just whether it loads.
• UI/UX taste — we will form an opinion on your design sensibility from your live work before we speak to you. If your interfaces feel generic, unfinished, or visually careless, that is signal.
• Code we can read — we will look at your source code. Clean structure, meaningful naming, thoughtful component boundaries, and documented decisions matter as much as functionality.

Applications without a GitHub profile and at least two live deployments will not be reviewed.

The Role

This is a full-ownership frontend role at an early-stage AI startup. You willdesign, build, and maintain the interfaces our customers interact with everyday — from the core product dashboard to landing pages to AI-native conversational experiences. You are not a ticket-taker. You will have direct input on product direction, collaborate closely with founders, and be expected to bring both engineering rigour and design instinct to every surface you touch. We are looking for someone who sits firmly at the intersection of engineering and design: technically deep, visually opinionated, and relentless about quality.

What You’ll Do

Core Engineering - Build and architect production-grade applications using Next.js, React, TypeScript, and Tailwind CSS - Implement modern rendering strategies — SSR, SSG, ISR, CSR — with deliberate performance budgets and Lighthouse targets - Integrate real-time features using WebSockets, Server-Sent Events, and streaming APIs - Connect with Node.js/NestJS and Python backends via REST and GraphQL; implement and maintain auth flows (JWT, OAuth 2.0, session-based) - Manage application state using Redux Toolkit, Zu- stand, or TanStack Query; handle forms via React Hook Form and Zod - Own the frontend testing strategy end-to-end — unit, integration, and E2E — using Jest, React Testing Library, and Playwright - Contribute to CI/CD pipelines, Docker-based development environments, and deployment workflows UI/UX Engineering - Translate product requirements, rough wireframes, and Figma designs into polished, pixel-perfect, and accessible web interfaces — independently, without hand-holding - Build and maintain a scalable design system: tokens, spacing scales, typography hierarchy, colour systems, and reusable component patterns - Apply strong visual design fundamentals — layout composition, typographic hierarchy, whitespace, contrast, and colour — directly in code - Build complex dashboards, data-heavy interfaces, and multi-step interactive workflows with a focus on information architecture and usability - Design and implement AI-native UI patterns: streaming chat interfaces, inline AI suggestions, conversational flows, and real-time response rendering - Implement responsive layouts that work flawlessly across breakpoints, devices, and browsers - Conduct UI/UX self-review on your own work — you catch visual inconsistencies, interaction gaps, and accessibility issues before they reach review - Work with animation and micro-interaction libraries to add purposeful motion that enhances, not distracts

Architecture & Quality - Design modular, scalable frontend folder structures with clear separation of concerns - Enforce component-driven development practices using Storybook - Drive structured code reviews and uphold engineering quality standards across the team - Instrument observability and error tracking on the frontend (Sentry or equivalent) - Mentor junior engineers and establish

patterns the whole team can follow 

What We’re Looking For

• 2+ years of production-grade frontend development — not freelance experiments or internal tools no one uses. Real products, real users, real traffic.
• Expert-level command of Next.js, React, TypeScript, and modern JavaScript (ES6+)
• Deep understanding of browser rendering, layout, and paint — you can diagnose performance issues beyond “run Lighthouse”
• A genuine, demonstrable eye for design — you understand layout, spacing, typographic scale, visual hierarchy, and colour theory, and you apply them instinctively in code
• Ability to independently take a rough idea or wireframe and produce a clean, well-structured, conversion-focused UI
• Strong working knowledge of accessibility standards (WCAG 2.1) and semantic HTML
• Experience building and consuming design systems, and the discipline to maintain them as a product scales
• Familiarity with design tools — Figma proficiency is a strong plus; you should at minimum be able to inspect, extract, and iterate on designs without designer dependency
• Experience integrating frontend applications with Node.js and Python backends
• Solid Git workflows, Docker-based local development, and CI/CD familiarity
• Ownership mindset — you think about the product and the user, not just the Jira ticket

Technical Depth We’ll Assess

During the hiring process, we will evaluate:

• Frontend architecture decisions — how you structure a scalable Next.js application, what tradeoffs you make and why
• UI/UX implementation quality — can you take a design brief and produce an interface that feels professionally crafted
• Performance mindset — code splitting, lazy loading, image optimisation, caching strategies, render optimisation
• State management and data fetching patterns — how you think about client-server state boundaries
• Component design — reusability, composability, prop interfaces, and avoiding premature abstraction
• Testing approach — what you test, how you test it, and how you think about test coverage vs. maintenance cost
• Design system thinking — how you build for consistency and scale, not just the current screen

Nice to Have

• Experience building AI-powered interfaces — streaming responses, type- writer effects, token-by-token rendering, inline AI suggestions
• Motion design experience — Framer Motion, GSAP, Lottie, CSS animations, and purposeful micro-interactions
• Contributions to open-source React, Next.js, or UI library projects
• Experience with data visualisation libraries — Recharts, D3, Visx, or similar
• Prior experience at an early-stage startup where the design–engineering boundary was blurred
• Exposure to growth-focused frontend work — landing page optimisation, A/B testing, conversion-focused UI
• Basic understanding of backend architecture — enough to have an informed opinion on API design Stack Next.js · React · TypeScript · Tailwind CSS · Zustand / Redux Toolkit ·TanStack Query · React Hook Form + Zod · GraphQL / REST · WebSockets· Jest · Playwright · Storybook · Docker · GitHub Actions · Framer Motion · Sentry

What We Offer

• Competitive salary with a strong growth trajectory
• High-impact, high-ownership role — you will directly shape the product experience
• Opportunity to build on cutting-edge AI-driven products from the ground up
• Fast execution cycles, minimal bureaucracy, and direct collaboration with founders
• Learning budget for courses, certifications, and tools
• A culture that values craft — we care deeply about what we ship and how it feels

StepsAI · Hyderabad · We build fast, own things fully, and care deeply about what we ship.

Are you a UI whiz with a knack for crafting beautiful and intuitive interfaces? Do you love the

challenge of building cross-platform apps with cutting-edge technologies? If so, we want you on our

team!

About the Role:

We're seeking a talented and passionate Software Engineer with a deep understanding of

JavaScript, React, and Flutter to join our fast-growing team. You'll play a key role in designing,

developing, and implementing user interfaces for our web and mobile applications. You'll collaborate

closely with designers, product managers, and backend engineers to bring our vision to life and

create exceptional user experiences.

Responsibilities:

- Design and develop user interfaces (UI) using JavaScript, React, and Flutter

- Build reusable, maintainable, and performant UI components

- Implement responsive layouts that adapt seamlessly across different devices (web, mobile)

- Integrate UI components with backend APIs

- Write clean, well-documented, and testable code

- Collaborate with designers to translate design mockups into functional UIs

- Participate in code reviews and knowledge sharing

- Stay up-to-date on the latest UI development trends and technologies

Qualifications:

- 3+ years of experience as a software engineer with a focus on UI development

- Proficiency in JavaScript, including ES6+ features

- In-depth knowledge of React and experience building React applications

- Solid understanding of Flutter and experience building cross-platform mobile apps

- Experience with UI design principles (user experience, accessibility)

- Familiarity with CSS frameworks (e.g., Bootstrap, Material-UI) a plus

- Experience with state management libraries (e.g., Redux, MobX) a plus

- Experience with unit testing frameworks (e.g., Jest) a plus

- Excellent problem-solving and analytical skills

- Strong communication and collaboration skills

- Ability to work independently and as part of a team

Bonus Points:

- Experience with UI animation libraries (e.g., React Spring, Rive)

- Experience with continuous integration/delivery (CI/CD) pipelines

- Experience with accessibility best practices

- Experience with version control systems (e.g., Git)

• Job Title - Frontend Software Engineer - Data
• Reports Into - Senior Software Engineer - Data
• Location - Hybrid / Bangalore 

A Little Bit about Kwalee…

Kwalee is one of the world’s leading multiplatform game developers and publishers, with well over 900 million downloads worldwide for mobile hits such as Draw It, Teacher Simulator, Let’s Be Cops 3D, Airport Security and Makeover Studio 3D. We also have a growing PC and Console team of incredible pedigree that is on the hunt for great new titles to join TENS!, Eternal Hope, Die by the Blade and Scathe.

What’s In It For You?

• Hybrid working - 3 days in the office, 2 days remote/ WFH is the norm
• Flexible working hours - we trust you to choose how and when you work best
• Profit sharing scheme - we win, you win 
• Private medical cover - delivered through BUPA
• Life Assurance - for long term peace of mind
• On site gym - take care of yourself
• Relocation support - available
• Quarterly Team Building days - we’ve done Paintballing, Go Karting & even Robot Wars
• Pitch and make your own games on Creative Wednesdays! 

Are You Up To The Challenge?

As a Frontend Software Engineer in the Data Science Team, you will build tools and develop technology that deliver data products to a team of strategists, marketing experts and game developers. You will design, build, test and deploy products which serve a company fuelled by data.

Your Team Mates

The Data Science team is central in developing the technology behind the growth and monetisation of our games. We are a cross functional team that consists of analysts, engineers and data scientists, and work closely with the larger engineering team to deliver products spanning our modern, cloud first, tech stack.

What Does The Job Actually Involve?

• Develop and maintain user-friendly and visually appealing web applications using Vue.js
• Create interactive and informative data visualisations for general audiences as well as highly specialised teams
• Integrate with large, complex data sources and machine learning models via APIs
• Work within a data focused team to increase access to and the understanding of test and analysis results within game development, marketing and other aspects of the company

Your Hard Skills

• Minimum 2 years browser-based programming experience
• A proven track record of programming high quality and innovative web pages using Javascript, HTML5 & CSS3 and relevant frameworks (ideally VueJS but could also be others e.g. ReactJS, AngularJS, Svelte)
• Knowledge of data visualisation libraries and techniques
• Understanding of REST APIs, asynchronous programming, and data handling
• An excellent working knowledge of various database, scripting, and development tools, for example bash, Python, Postgres, MySQL, CouchBase, git, JIRA
• A creative mindset motivated by challenges and constantly striving for the best

Your Soft Skills

Kwalee has grown fast in recent years but we’re very much a family of colleagues. We welcome people of all ages, races, colours, beliefs, sexual orientations, genders and circumstances, and all we ask is that you collaborate, work hard, ask questions and have fun with your team and colleagues. 

We don’t like egos or arrogance and we love playing games and celebrating success together. If that sounds like you, then please apply.

A Little More About Kwalee

Founded in 2011 by David Darling CBE, a key architect of the UK games industry who previously co-founded and led Codemasters, our team also includes legends such as Andrew Graham (creator of Micro Machines series) and Jason Falcus (programmer of classics including NBA Jam) alongside a growing and diverse team of global gaming experts.

Everyone contributes creatively to Kwalee’s success, with all employees eligible to pitch their own game ideas on Creative Wednesdays, and we’re proud to have built our success on this inclusive principle.

We have an amazing team of experts collaborating daily between our studios in Leamington Spa, Lisbon, Bangalore and Beijing, or on a remote basis from Turkey, Brazil, Cyprus, the Philippines and many more places around the world. We’ve recently acquired our first external studio, TicTales, which is based in France. 

We have a truly global team making games for a global audience, and it’s paying off: - Kwalee has been voted the Best Large Studio and Best Leadership Team at the TIGA Awards (Independent Game Developers’ Association) and our games have been downloaded in every country on earth - including Antarctica!

Role : React JS Developer 

• 3-5 years of experience as a React JS developer. 
• Must have Working Experience in a product based organization at least 18 months.
• Good Communication skills must. 
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model 
• Thorough understanding of React.js and its core principles 
• Experience with popular React.js workflows (such as Flux or Redux) ● Familiarity with newer specifications of ECMAScript
• Experience with HTML,CSS, Bootstrap and UI Design 
• Knowledge of RESTful APIs 
• Knowledge of modern authorization mechanisms, such as JSON Web Token ● Familiarity with modern front-end build pipelines and tools 
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc. 
• Ability to understand business requirements and translate them into technical requirements 
• Familiarity with code versioning tools {such as Git} 

PRIMARY RESPONSIBILITIES :-

• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of Angular and its components.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Good project management skills.

SECONDARY RESPONSIBILITIES :-

• Ability to work independently and take ownership of the project.
• Should be capable to work in a team.
• Must have strong communication skills.
• Should be enthusiasts and able to take challenge.

Appristine Technologies. We are based in Pune and offer an exciting working environment along with very attractive remuneration, to all deserving candidates. Currently, we are hiring for the following role.

1. ReactJS Developer – 2+ Years Exp.

Skills & Knowledge

• Minimum 3 years of development experience in React and Redux.
• Good understanding and experience of HTML / CSS / Javascript / Webpack / Bootstrap.
• Hands-on experience with ES6 / ES7 / ES8 features.
• Expertise with Web Services / REST APIs.
• Skillful experience in Node JS / Express / MongoDB will be a plus.
• Understanding of mobile cross-platform frameworks like React Native.