About us:
Equal parts creative agency, engineering firm, and consultancy, Grappus has a reputation of doing things differently. We work with brands big and small, far and wide, helping them understand, prototype and deploy a broad range of custom tech. We value design and we cringe at bad UX. Each project is a clean slate, we don’t have frameworks, or any pre-made formulas. We’re not here to just grow big, make money and win awards. We’re here to crack the process of building truly innovative products from scratch. Products that make people say ‘damn’.
People at Grappus usually experience a highly accelerated career growth well beyond the narrow constraints of their ‘job description’. Here, the growth ladder is tailored to you. It operates exactly as fast as you can manage to grow. We think it's a waste when smart people are unable to make an impact. Our aim is to unleash your potential by giving you massive challenges and the freedom to solve them.
We’re in a fluid world, where we don’t know what technologies we’ll use next, or the projects we’ll work on. We’re actively searching for ways to shine a light on our blind spots, whether it is in the products we want to build, the problems we like to solve, or the company culture we try to create. That’s what makes life at Grappus so exciting. Grappus is an ongoing experiment and you are a part of it. We'll be a different company a few years from now because you are going to change it for the better. We can’t wait to see where you take us.
About the role:
We are seeking a Sr. Frontend Developer who has a knack for coming up with creative solutions to unique problems, planning development cycles and writing technical documentation while leading a team of developers. You can get in where needed to write clean, reusable, and performant code, with creative sensibilities to push projects towards perfection. You should have good time management skills and be able to work both autonomously and collaboratively with a cross-discipline team of product managers, strategists, UX designers, art directors, and developers. Most importantly, you have an eye for detail and the ability to make beautiful designs come to life through code.
What we’d like to see:
● Ability to write elegant and readable code
● Excellent problem solving skill and love technical challenges
● Lead a team of developers and showcase managerial skills
● Comfortable working in a team-oriented and collaborative environment
● Strong understanding of Agile and Lean software development processes and practices
● Stays plugged into emerging technologies/ industry trends and applies them proactively
● Knowledge of software best practices, like test driven development and continuous integration
Must have:
● BE/ B.Tech in Computer Science or a related field or equivalent practical experience
● Proven working experience in frontend programming for a minimum of 3 years
● Good understanding of frameworks like Bootstrap, Backbone, ReactJS, Redux and libraries like jQuery, LESS and Ajax
● Knowledge of performance testing frameworks including Mocha and Jest
● Experience with browser-based debugging and performance testing software
● Strong understanding of server-side scripting and Javascript frameworks, including jQuery
● Aggressive problem diagnosis and creative problem solving skills and client handling skills
● Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
● Experience with coaching and mentoring junior web developers
● Experience in working with a variety of external frameworks and libraries
● Proven experience integrating with, along with a deep understanding of, service-based Web APIs including REST and/or GraphQL
● Good knowledge of User Interface patterns and techniques to solve common UI problems
Nice to have:
● Familiarity and experience using a variety of architectural design patterns
● Personal projects or contributions to the open source community
● Knowledge of modern authorization mechanisms, such as JSON Web Token
● Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
● Strong organizational skills to juggle multiple tasks within the constraints of timelines
● Team player (those great personality types that people love to work with)
● Great communication skills
Why you’ll love it here:
(Besides working with our team with infinite charm)
● We have no fixed work timings or leave policy, you can take unlimited leaves and start your day whenever you want. (Just make sure others in your team don’t suffer)
● We don’t track these hours you put in or ask you to fill time sheets. We don’t believe in
micromanaging, if you’re struggling, ask for help. If someone else is, offer some support.
● We never mind if people make mistakes or screw up in any way, and offer full encouragement to help people learn fast by failing fast.
● We always encourage people to be completely candid, raise alarms, or log complaints
anonymously in our feedback tool, no matter how harsh.
● We are a ‘Work from Anywhere’ company, since passionate, driven people can work from
anywhere they want; their homes, or cafes, or mountains, or beaches, anywhere.
● We have a 15-day notice period. We want to build a place where people work willingly and passionately.

About Grappus
About
With a team comprising of tech enthusiasts, we are a high energy startup exploring the domains of emerging mobile market. Looking for a smart, sexy and intuitive mobile app to bring a significant impact to your business? We, at Grappus are committed to deliver innovative mobility solutions that surpasses customer expectations - building brand loyalty and nurturing continuous engagements. Our collaborative approach brings digital strategy to life through our custom-built versatile solutions fortified to meet your ever changing business environment. We strive to build high quality products for startups and enterprise clients across iPhone, iPad, Android and the web. With a valuable experience and knowledge of the mobile market along with our passion towards technology, we bring complete perfection to our work.
Connect with the team
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Experience : 2+ Years
Location : Gurgaon, Sector 48 (Work From Office)
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We are seeking a talented React.js + Web3 Developer to join our fast-growing engineering team.
The ideal candidate should have strong front-end development skills along with hands-on experience in blockchain/Web3 integrations.
Mandatory Skills : React.js, JavaScript/TypeScript, Web3.js/Ethers.js, Wallet Integrations, State Management (Redux/Zustand), REST APIs, Git.
Key Responsibilities :
- Develop responsive, scalable front-end applications using React.js & TypeScript.
- Integrate Web3.js / Ethers.js to connect UI with blockchain networks.
- Work with REST & GraphQL APIs for backend communication.
- Implement wallet integrations (MetaMask, WalletConnect, Coinbase Wallet, etc.).
- Collaborate with blockchain engineers for smart contract interactions.
- Optimize UI performance, handle state management, and write clean, maintainable code.
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Mandatory Skills :
- Strong hands-on experience in React.js, JavaScript/TypeScript.
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- Understanding of wallet integrations, dApps, and blockchain basics.
- Knowledge of state management (Redux/Zustand/Context API).
- Strong debugging, problem-solving, and Git experience.
Nice to Have :
- Familiarity with Solidity, Smart Contracts, and Ethereum ecosystem.
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Mandatory Requirements:
• Strong knowledge of HTML5, JavaScript ES6 and above.
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• In-depth experience with React or a similar front-end framework. Candidates with only hands-on experience will not be considered.
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• Ability to write clean, maintainable, and testable code.
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• Experience with Git and version control practices.
• Good communication and collaboration skills.
Desirable Skills:
• Familiarity with Storybook.
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The company’s advert platform is powered by artificial intelligence, which is used by businesses for Influencer Discovery, Campaign Management, and Campaign Analytics through UPCRED Pixel Management.
Our technology visions to have one-third of the world's social consumers discover new things through recommendation feeds from their favourite social media creator and which connects advertisers to these audiences to grow their business.
UPCRED Social has long-term partnerships with a variety of digital content creators and has the vision to democratize the social earning for content creators in India.
UPCRED Advert wants to be an all-in-one influencer marketing platform designed to help businesses own their influencer relationships.
Responsibilities:
The React Developer will own and drive web development—including decisions about tools, technologies, and processes - for UPCRED.
This is an incredible opportunity for anyone interested in being a part of a high-performing, fast team with a massive learning curve. Our team moves fast and develops world-class products by pushing the boundaries of React development. If hired, you will be part of UPCRED's in-house Product & Engineering team.
Develop cross-browser & cross platform supported web applications in React which customers love using.
Work with product, design, backend teams to develop features.
Work on bindings and integrations required with react libraries & REST api's.
Plan, estimate, and delivery your project with minimal supervision.
Skills:
2 - 5 years of React experience with some hands-on experience with web application development.
Experience with React Ecosystem (React Router, Styled-components, Server-side rendering, Context API, React Hooks) is strongly preferred.
Experience with state management libraries such as Redux or MobX is a huge plus.
Proficient understanding of cross-browser compatibility issues and ways to work around such issues
Understanding of REST APIs, the document request model, offline storage, state
management.
Experience with Content/Video-based website.
Understanding of Social Video-based web Architecture
HOW?
Apply, and let us know your interest?
UPCRED, that's how we grow, fair and transparent!
Note: Candidates who is having a notice period of more than 45 do not apply
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React JS Developer
- 0-1 years of experience as a React JS developer.
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Jivox is transforming the way the world experiences digital marketing. We connect brands with their audiences in the most personalized way: using big data, AI/machine learning, Dynamic Creative Optimization (DCO), customer journey optimization, and identity technologies to deliver omni-channel precision marketing.
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A Powerful Dynamic Creative Personalization platform serves millions of ad impressions a day and evaluates 30 billion+ rules / day. Our proprietary machine learning technology, powers personalization in real-time, creates personalized experiences across all channels including display, video, native and social.
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Relevant experience in Javascript: Min 1 year
Must Have
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- Good to have cross-browser / Cross-platform compatibility knowledge.
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