

The ideal candidate will be responsible for designing, developing, testing, and debugging responsive web and mobile applications for the company. Using JavaScript (React), HTML, and CSS, this candidate will be able to translate user and business needs into functional frontend design. Someone with prior experience with Gatsby, Hasura, Redux, etc and live projects to showcase will get prioritised.
Responsibilities
- Designing, developing, and testing UI for mobile and web applications
- Build reusable code and libraries for future use
- Accurately translate user and business needs into functional frontend code
Qualifications
- Bachelor's degree or equivalent in Computer Science
- 2+ years' experience in frontend development
- Familiarity using Scrum/Agile development methodologies
- Experience building object oriented web applications in JavaScript, HTML5, and CSS3

About Calypsu
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About us
Flam is building AI Infrastructure for Brands in Immersive Advertising spanning across all channels viz. Digital, Broadcast TV, Retail, Communications, Print, OOH etc.
Vision: The Immersive & Interactive Layer for Every Screen & Surface
Flam aims to redefine how consumers interact with ads, content in every shape and form, retail aisles, live broadcasts and fan moments—turning content and interfaces into shoppable, shareable experiences that deliver measurable ROI. Flam has raised a $14 million Series A round led by global technology investor RTP Global with participation from Dovetail and select others bringing the total funding to $22 million.
Role overview
We are seeking a seasoned Frontend Engineer (SDE II / SDE III) to join our team and help build cutting-edge, immersive, and highly performant web applications. This role demands deep technical expertise in React, Next.js, Three.js, and WebGL/OpenGL, along with a strong foundation in frontend architecture and performance optimization.The ideal candidate is passionate about building high-quality interfaces, thrives on solving complex problems, and has prior experience leading frontend initiatives in a fast-paced environment.
Key Responsibilities
- Architect, develop, and maintain scalable and modular frontends using React and Next.js.
- Implement responsive, accessible UI components using Tailwind CSS.
- Design and develop interactive 3D experiences using Three.js, WebGL, and the Canvas API.
- Write custom shaders using GLSL and implement low-level WebGL rendering pipelines.
- Set standards for frontend architecture, including code structure, testing, and performance.
- Collaborate closely with product managers, designers, and backend teams to translate product requirements into technical solutions.
- Ensure applications meet high standards of performance, security, and cross-browser compatibility.
- Mentor junior frontend developers and participate in code reviews to maintain code quality and team growth.
Required Qualifications
- 3-6 years of professional frontend development experience.
- Expert-level proficiency with JavaScript (ES6+), React, and Next.js.
- Solid understanding of state management tools such as Context API or Zustand.
- Proficient with Tailwind CSS or similar utility-first CSS frameworks.
- Demonstrated experience in frontend architecture and leading large-scale projects.
- Advanced skills in Three.js, GLSL shaders, and WebGL/OpenGL.
- Familiarity with the Canvas API for 2D rendering.
- Strong grasp of frontend performance optimization techniques.
- Clear understanding of responsive design principles and web accessibility standards (WCAG).
- Hands-on experience with Git and modern CI/CD pipelines.
Nice-to-Have
- Experience with Next.js App Router and server components (Next.js 13+).
- Familiarity with animation libraries like Framer Motion or GSAP.
- Understanding of backend fundamentals (REST, GraphQL, authentication).
- Experience working on interactive applications in domains such as gaming, XR, or data visualization.

We are looking for a great Frontend developer who is proficient with React.js. Your primary
focus will be on developing user interface components and implementing them following
well-known React.js workflows (such as Flux or Redux). You will ensure that these components
and the overall application are robust and easy to maintain. You will coordinate with the rest of
the team working on different layers of the infrastructure. Therefore, a commitment to
collaborative problem solving, sophisticated design, and quality product is important.
RESPONSIBILITIES
● Developing new user-facing features using React.js
● Building reusable components and front-end libraries for future use
● Translating designs and wireframes into high quality code
● Optimizing components for maximum performance across a vast array of web-capable
devices and browsers
REQUIREMENTS
● 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
● Familiarity with RESTful APIs and sockets
● 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
● A knack for benchmarking and optimization
● Familiarity with code versioning tools
● Experience with PWAs and React Native is a huge plus

● Web fundamentals as HTML, JavaScript, and CSS
● JavaScript/Typescript frameworks, especially Angular 11 and above
● Libraries like jQuery
● CSS Preprocessors like SASS or LESS
● Front-end (CSS) frameworks like Foundation or Bootstrap, AJAX
● Mobile First and Responsive implementations
● Working with REST API's and integrating them properly in a UI layer


Who are we
Syook is an established startup headquartered in Bengaluru, working in the B2B space. We are currently on the path of high growth and productivity, and great culture building (because we know the two go hand in hand)! We are looking for folks who will ask questions like why/why not, what can I do to make this better, how can I help the company and most importantly, what can the company do to help you.
Our flagship product Syook InSite allows businesses to visualize their operations, providing information that can easily translate into measurable impact on the bottom-line. InSite is an Industrial Internet-of-Things (IIoT) solution that uses Bluetooth Low Energy (BLE) beacons to generate highly-accurate location data of all your resources (both assets and people), at much lower costs than https://syook.com/rfid-vs-ble-vs-uwb-vs-wi-fi/">comparable technologies. The result: Quick RoI and Improved Operational Performance. It’s Industry 4.0, ready for deployment!
Role overview
First and foremost, we're looking for people who are excited about what we're doing -- you don't need to know anything about IoT, but should be excited to learn. We're building in an entirely new space, so you'll be able to use creativity to help us solve problems and delight our customers.
Our product stack is MERN (React, Node + Express, MongoDB) with a few services also written in Java and Go and we use React Native on mobile.
We’re looking for someone who has always loved to be on the creative side of things and enjoys creating user experiences that are inviting, intuitive and impactful. You must enjoy designing the layouts of the product, the navigation and the complete look and feel of it.
A day in your role will involve any of the following (or a combination):
- Develop new user-facing features
- Build reusable UI components and libraries for future use (for web and mobile)
- Ensure the technical feasibility of UI/UX designs
- Optimize application frontend (web and mobile) for speed and scalability
- Ship out bug free code using TDD
- Work towards more stability & scalability of the frontend
- Understand the requirements and give adequate time estimates for the features
- Coordinate with QA for every feature and make sure releases are bug free
This list is not exhaustive at all, and you'll have a lot of autonomy over your work.
This is a full time position based out of Bengaluru with the option of working remotely few days of the week. During the interview, you'll be able to share what you're most interested in.
Why you might be excited about us
- We're working to solve a massive global problem and help organizations be more competitive. We love solving problems using technology and are bridging a massive gap in the operations excellence domain.
- We're small, so you'll be able to contribute efficiently and without bureaucracy. You'll quickly have responsibility over big areas of our product.
- Our team has a wide range of experiences (Oilfield, Telecom, Psychology PhD, etc.) and are excited to learn from you, too.
- You'll be able to work independently and set your own schedule. We don't micromanage and will help you do great work. We trust our people and believe that each person here puts their best foot forward.
- We'll mould your role to shape a career you're excited about. We care a ton about your satisfaction and job happiness, and will help prep you for whatever you're looking for in the future.
- We work hard and also highly value balanced work/life. We care about family and your own personal development, and don't expect for you to be always engaged with work.
Why you might not be excited about us
- We're small (35+ people in the company now), so if you like more established companies, it's not (yet) the right time. You'll help build our company's culture.
- Since we're an early stage startup, projects and priorities may shift.
- Our customers love us, and there's a lot we can improve. It's a great place to be, but it means there's some jank. (Nothing too scary! 😃)
- We can't (yet) provide constant close mentorship for junior developers. As we grow, we'll get a lot better at this.
- Since you'll have a lot of responsibility and creativity over projects, they may not be defined perfectly initially. You'll be expected to bring your own experience and perspective to help us do the right things, and raise flags if you think we should do things differently.
About you
None of these are requirements, but do describe the kinds of people that we think would be most effective at Syook right now.
- Love thinking broadly about problems and thinking creatively about how to solve them efficiently.
- Happy to try things out to validate new features, and move on if they no longer solve a problem.
- Excited for a front-row seat into a fast growing, early stage company. Things will change a lot!
- Enjoy thinking through trade-offs, with both mindfulness of short-term needs and our long-term direction.
- Happy writing documentation so that others can ramp up super easily and you're never a single-source-of-failure. We're a bit too small to have silos.
- You are driven and care about doing a good job and improving your craft.
- You have a growth mindset, can keep up with the latest technology changes and trends and suggest enhancements based on these
- Most importantly, you’re the kind of person who is friendly, approachable, ready to help others and personally driven to put your best foot forward.
Technically these are some of the things we would like for you to have to be able to contribute effectively in this kind of a position:
- You are fluent working with client-side scripting and JavaScript frameworks, in particular React and React Native along with state management libraries like Redux.
- You are proficient in understanding of web markup, including HTML5, CSS3
- You have knowledge of developing mobile apps
- You can write non-trivial programs in Javascript
- You can write clean, modular code in either Object-Oriented style or Functional style
- You are comfortable with Test Driven Development
- You are fluent in using the tools of the trade: Testing, Editors, Git, Command line, Slack
Apart from the above it would be a plus if you also have
- Knowledge of Docker
- Open source contributions
Our current development practices
Since we're an early-stage startup, we constantly have to ask "what gets the most value, cheaply, to validate our assumptions?" We build some things to last a long time, and others as prototypes.
We use linting, e2e testing, CI CD, observability logging, and production probers. We've documented both our web and mobile apps so that you should be able to get started easily—and if you need help, we'll absolutely improve our docs—and contribute your first day.
We recognize the value of maintainability and keeping our developer experience nimble. Our sprints are for 2 weeks and we push releases to production as per this schedule.
You'll help push us to be our best, and we're excited for recommendations and insights you have as you join. You'll be an owner and contribute towards how we work.
Joining our team
Interview process
We want you at your best, and won't be giving you gotcha-style algorithms questions. We want to get to know you, hear about what you're interested in, and learn about what you hope to do in the future.
1. Meet us and learn about Syook
You'll first talk to Sarlaksha or someone from the People Services team (over phone or video) and won't need to prepare anything in advance. The goal of this conversation is to get to know you and mutually explore if we might be a good fit for each other. You'll learn more about Syook and have a chance to ask any questions about our company, team culture, and product.
The conversation will also revolve around your technical experience. We'll talk about frameworks you've used, how you make technical decisions, types of problems you like to solve, etc. You won't need to prepare anything in advance.
This is primarily used to get a better feel for your experience, how you work, and where you may fit in. It'll be used to design the rest of the interview process.
Through this and the next steps, you'll meet more people in the company so we can get to know each other.
2. Technical challenge
Everyone has different strengths, and we want you to do your best. Our goal is for you to clearly demonstrate your technical aptitude. We're open to accommodating what would work best for you.
We can choose mutually between several different options:
- A live pair coding session where we'll work through some problems.
- Working through similar problems independently as a take home challenge.
- Presenting any previous work you've done (example: open source, side project, or even another interview you did).
3. Technical Discussions
If you clear the technical challenge then we will have a few rounds of technical discussions where we interact with you to understand in depth about your craft. These discussions will be with one of the engineers at Syook whom you will end up working with and the final discussion will be with our CTO (Aman Agarwal). We will try and see how you can augment our engineering culture and we’ll discuss the bigger picture also. You will also get to understand what your role is all about and how you can grow with us. Feel free to ask for feedback and any other questions you may have about the company and we will be happy to share the same.
4. People & Culture fit round
If you reach this stage, it automatically means that we’re convinced of your technical skills. However, that’s never enough for us. We want to ensure that you will feel comfortable working with us and that we can give you an environment where you can be your productive best. We will use this discussion to understand what you bring to the table apart from your technical skills in terms of initiatives, personality, and a certain entrepreneurial mindset.
5. Reference conversations
We will talk to a few people you've worked with before to learn more about how we can best work with you. We expect to hear great things, so this is primarily so we can work with you as effectively as possible.

We are looking for a senior React.js developer who can guide the current team and also work on our project. The requirement could be for 3-4 months or at max 6 months. Hence a full-time remote consultant is preferred with about 4-5 years of experience in React.
This position is for a ReactJS developer. Since we are a start-up this position will have a lot of exposure to other verticals such as product management as well. There is no limit to learning for a person who is willing to take responsibility.


FrontEnd Developer - ReactJs & Angular
Rejolut is among the fastest-growing and award winning Tech companies working on leading technologies namely Blockchain, Machine Learning & Artificial Intelligence, Complex mobile & Web Apps, IoT, etc.Rejolut is a venture-backed company with clients in over several countries namely Malaysia Airlines,gba global,my-earth,biomes, Dlg-hub,etc.
We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product.
Responsibilities:
- Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack
- Competent in building single page web applications using Node.js and React Js
- Redux/ Recoil Js for state management
- Universal rendering (Client-side rendering and Server-side rendering)
- Experience with cross-browser, cross-platform, and design constraints on the web
- Experience in developing automated unit and functional tests
- Experience in an agile development process
- Deep knowledge of algorithms and design patterns
- Have a passion for quality and writing clean, readable code that scales and performs well
- Good interpersonal communication skills
Desired Candidate Profile:
- 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 data structure libraries
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms
- Familiarity with modern front-end build pipelines and tools
- Experience with common front-end development tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools
Rejolut - As a Career Differentiator
- We are a young and dynamic team who are obsessed with solving futuristic and evolutionary business problems at scale with the next generation technology like blockchain, crypto and machine learning. Focuses on empowering people across the globe to be technically efficient, making advancements in technology and providing new capabilities that were previously thought impossible.
- We provide exposure to higher learning opportunities so that you can work on complex and cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, WebAssembly. Strong expertise in blockchain and crypto technology and working with the networks like Hedera Hashgraph, Tezos, BlockApps, Algorand, Cardano.
- We maintain high end transparency with clients and employees as Visibility unlocks Efficiency and trust unlocks Visibility.
- Company is backed by two technology Co-founders, well-versed with consumer applications and their work has been downloaded millions of times and have led teams in leadership positions in companies like Samsung, Purplle, Loylty Rewardz.
Benefits :
> Health Insurance
> Work from Home
> Fast growth and more visibility into the company
> Experience to work on the latest technology
> Competitive Learning Environment with supportive co-workers
> Employee friendly HR Policies
> Paid leaves up to certain limits
> Competitive salaries & Bonuses
> Liberal working atmosphere
> Get mentored by the best in the industry
Schedule:
Day Shift/Flexible working hours
Monday to Friday


Work Location: Madurai
Interview Process : Face to Face
Experiences : 2 Years to 8 Years
Please do share your resume to my inbox
Job Description : ReactJS (Lead)
* In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive webapplications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.
* Previous experience working as a react.js developer.
* In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
* 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.


Aviso is the AI Compass that guides Sales and Go-to-Market teams to close more deals, accelerate revenue growth, and find their True North.
We are a global company with offices in Redwood City, San Francisco, Hyderabad, and Bangalore. Our customers are innovative leaders in their market. We are proud to count Dell, Honeywell, MongoDB, Glassdoor, Splunk, FireEye, and RingCentral as our customers, helping them drive revenue, achieve goals faster, and win in bold new frontiers.
Aviso is backed by Storm Ventures, Shasta Ventures, Scale Venture Partners and leading Silicon Valley technology investors
Senior Frontend Developer roles gives you an opportunity to
● Collaborate with Product Designers, Product Managers and Software Engineers from conceptualizing new features to delivering user-friendly products
● Use the latest technologies to build new features that help our users run mission critical sales processes
● Take ownership of full software development lifecycle: feature requirements gathering, design, architecture, implementation, debugging, testability and deployment.
● Constantly pay down technical debt, improve software development process and refine technology roadmap
What you bring:
● At least 2+ years in front-end or full-stack software development
● Advanced level knowledge of Javascript, CSS and HTML5
● Experience with: Vue, React, Angular or equivalent javascript frameworks
● Experience with any of the hybrid mobile development tools like Angular/Ionic, React Native, Cordova, or PhoneGap
● Proficiency with Git or other distributed version control systems
● Solid knowledge of data Structures and algorithms
● BS/MS in Computer Science or a related field Aviso offers
Aviso Offers:
● Dynamic, diverse, inclusive startup environment driven by transparency and velocity
● Bright, open, sunny working environment and collaborative office space
● Convenient office locations in Redwood City, Hyderabad and Bangalore tech hubs
● Competitive salaries and company equity, and a focus on developing world class talent operations
● Comprehensive health insurance available (medical) for you and your family
● Unlimited leaves with manager approval and a 3 month paid sabbatical after 3 years of service
● CEO moonshots projects with cash awards every quarter
● Upskilling and learning support including via paid conferences, online courses, and certifications
● Every month Rupees 2,500 will be credited to Sudexo meal card







