
Job Description
- Experience in UI development using React JS
- In depth knowledge of JavaScript, CSS, HTML and front-end languages
- Excellent front-end coding skills, and a good understanding of progressive applications
- Strong knowledge of UI design principles, patterns, and best practices
- Experience working with JavaScript and Typescript, React, Redux, RxJS, Yarn
- Experience in test driven development using modern source control and continuous integration
- Design, develop, test, deploy and maintain software
- Delivering high quality and well-structured code

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We are seeking an experienced Senior React Web Developer to join our product development team. As a Senior React Web Developer, you will be responsible for developing and maintaining our web applications using ReactJS and Material UI. You will work closely with other developers, designers, product managers, and stakeholders to create high-quality, user-friendly, and scalable software.
Responsibilities:
- Design and develop high-quality, responsive, and user-friendly web applications using ReactJS and Material UI.
- Collaborate with product managers, designers, and stakeholders to ensure the project meets the business requirements and user needs.
- Write clean, maintainable, and efficient code.
- Optimize the application for maximum speed, scalability, and usability.
- Develop reusable UI components and libraries.
- Ensure the technical feasibility of UI/UX designs.
- Identify and troubleshoot bugs and issues.
- Stay up-to-date with the latest trends and technologies in ReactJS, Material UI, and front-end development.
- Participate in code reviews and contribute to the development of best practices.
- Mentor and guide junior developers in the team.
Requirements:
- Bachelor's degree in computer science or related field.
- At least 7 years of experience in front-end development, with at least 4 years of experience in ReactJS and Material UI.
- Strong proficiency in JavaScript, CSS, HTML, and related web technologies.
- Experience with Redux, Redux-Saga, and other state management libraries.
- Experience with building scalable and complex web applications.
- Strong problem-solving skills and attention to detail.
- Experience with Agile development methodologies.
- Strong communication and collaboration skills.
- Experience with Git and version control.
- Ability to work independently and as part of a team.
- Experience with GraphQL and Apollo Client.
- Experience with server-side rendering using Next.js .
- Experience with AWS or other cloud providers.
- Experience with CI/CD pipelines and automation.
- Experience with testing frameworks like Jest, Enzyme, or Detox.
- Experience with UX/UI design and prototyping tools.
We are looking for a good JavaScript 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
Skills:
- 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 (Redux)
- Familiarity with newer specifications of ECMAScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
Frontend Developer (ReactJS)
Company Profile
Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.
Opportunity
We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.
Here’s are some of the things you might have to do on any given day:
- Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc
- Write meaningful test cases for frontend &
- Integrate our products with 3rd party products/tools/services
- Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc
Ideal Background / Experience
- At least 12 months of diverse experience in web development for product or services oriented environment with exposure to working production deployments
- Expertise in programming using Python/ReactJS or similar scripting languages
- In-depth exposure to technologies used in web-based SaaS products, including REST APIs
- Sound understanding of Postgres and NoSQL databases such as MongoDB
Nice to have exposure to any of
- AWS
- Azure
- ELK
- Object Relational Models (SQLAlchemy, etc)
- Google APIs
- Microservices Architecture Pattern
- NodeJS / ExpressJS
Work From Home
Package: upto 10L
React + Next.js + Microfrontend, strong communication skills, and the ability to work independently.
Skillset required: Javascript, React.js, Good CSS and Designing, React Native, Unit testing, Next.js, Microfrontend, HTML, Redux
Additional Technical requirements: SSR, (GitHub Actions, GitHub/bitbucket/Git, GitLab CI/CD); JavaScript, TypeScript, Linting), Competitive Coding Experience (good to have)
Freelance Job HTML/CSS HTML5 React JavaScript Redux Next.Js
Tentative start date of the project: 2/1/2023 for about 2 months or more
Full allocation - 8 hrs a day * 20 days per month
Timezone: IST overlap with US timezone 8-11 PM IST
● Bachelor’s degree in Computer Science or equivalent preferably from IIT, NIT & other
premier institutes.
● Rockstar Javascript developer, who appreciates the intricacies of JS as well as passionate
to follow new trends in JS.
● Experience with product companies.
● 3-7 yrs software development on advanced JavaScript stack (Native Javascript,
Asynchronous Request Handling, AJAX, HTML5, CSS3, etc)
● In-depth knowledge in React Native.
● Proficiency in NodeJs will be a plus.
● Proficiency in any other modern web frameworks will be a plus.
● A solid knowledge of advanced data structures & algorithms.
● Proficient in Computer Science fundamentals & object-oriented design.
● Solid understanding of cross-browser compatibility issues and ways to tackle those.
● Must possess a track record of building Single Page responsive UI.
● Knowledge of NodeJS will be a plus.
● Experience with Databases such as NoSQL and any RDBMS will be a plus.
● Experience with transport protocols such as TCP, HTTP & WebSocket.
● Expressing and appreciating design patterns is a real addition.
Skills
- Have published at least one original React JS Application.
- Experience with third-party libraries and APIs
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
Roles
Should be able to single-handedly build performant mobile apps on the React JS platform. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
- Build pixel-perfect, buttery smooth UIs across web platforms.
- Leverage APIs for deep integrations with web platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Writing application interface codes using JavaScript following react.js workflows.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
About Company: Spica Systems (https://spicasys.com )
Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.
- Looking for a Software developer who will work on the product's Web UI side
- Hands on and working experience with React JS
- Experience in WebUI using Javascript technology.
- Experience: 2-4 years of React development in a team environment
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Redux.
- Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering
Traits: Quick learner, open minded, willing to learn
Work Location: Bangalore
Work Days: Sunday to Thursday
Shift: Day Time
Week Off: Friday & Saturday
Responsibilities
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI designs
- Optimize application for maximum speed and scalability
- Assure that all user input is validated before submitting to back-end
- Collaborate with other team members and stakeholders
Key Skills
- Should have hands-on experience in advanced JavaScript libraries and frameworks, such as ReactJS, Bootstrap. (ReactJS is Mandatory)
- Proficient in web markup, including HTML5, CSS3
- Good understanding of server-side CSS pre-processing platforms, such as LESS and SASS and experience in building/using REST APIs
- Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
- Good understanding of asynchronous request handling and partial page updates.
- Good understanding of SEO principles and ensuring that the application will adhere to them.

We are building a workspace for Marketing teams - Think Webflow for Marketing teams, Grafana for Marketing teams who operate on large data sets and need a clear intuitive interface to look at all their data.
Traditionally Marketing teams have always had to depend on a large BI team to provide them with the data they need to make decisions. Clarisights eliminates this by giving Marketing teams everything they need in one intuitive, collaborative reporting platform.
We work with large enterprise Marketing teams around the world like Delivery Hero - The world's largest food delivery co., HelloFresh the world's largest mealkits delivery co. etc.
Our platform is central to how business teams make decisions and you will work on the interface that these teams use. We are helping non technical business users get comfortable with data by giving them a platform they can use to drive.
What makes this role challenging? Think Google Docs, Slides and Sheets all combined in one platform. We have a collaborative text editor which is used by teams together and we built our table grid which is extremely powerful. Tables, being one of the heaviest and most used widgets we have, have records composed of metric data(averages, share percentages, comparison data), multiple creatives(images, videos, gifs), trends(charts inside each cell) and a lot more.
The huge amount of data points naturally increases the amount of DOM nodes and thus it becomes memory heavy and CPU intensive to run the app in the browser. One table can have 500 records that the users can scroll through at once. Now imagine having 10+ of such tables in one tab, and each report comprising of multiple tabs. And we also support features like drilldowns/breakdowns, column freezing, row freezing, in the tables all while ensuring a smooth user experience.
We decided to build it from scratch using React Virtualize since most table libraries did not give us the performance or features we need. We also extensively use charts to visualize data and as we are scaling, a lot of these components have to be rebuilt to handle the volume of data we process.
We are only getting started, we want to make our platform a lot more collaborative and immersive by giving teams ability to interact with charts by adding annotations and ability to tag team members and leave notes for them. This might seem a solved problem when you look at collaboration on Google Docs but it's an extremely tricky problem for us as we don't deal with static data the way you have it with Google Docs.
Unlike read only dashboards which do not allow edits after building, our platform is meant for collaboration within teams. Think of how shitty collaboration was for design teams before Figma.
What we are looking for?
We are looking for someone who obsesses over performance and is comfortable with profiling performance, can think of frontend architecture. We are also looking for a lead who can mentor the team on performance and scale.
While working with such complex interfaces, often times, performance and the tech becomes a bottleneck for the user experience we strive for. We are looking for someone who —
- Understands fundamentals of Application Design and has designed/architected applications from scratch.
- Has worked on large-scale applications, and setup/maintained its data pipelines (data flows from backend to frontend)
- Has architected efficient and reusable front-end systems that drive complex web applications
Preferable Qualifications
- 3+ years of JavaScript experience, including concepts like asynchronous programming, closures, types.
- HTML/CSS experience, including concepts like layout, specificity, cross browser compatibility, and accessibility
- Experience with browser APIs and optimizing frontend performance
- Previous experience with dashboard apps, charts framework, window virtualisation
- Has written Generators for project setup
- Comfortable with tech like Postgres, Docker, Rails
- Understands tooling like Webpack, Babel
Experience with React and Typescript is preferable but not necessary.
First 30 days, one will work on
- Understanding the data flow and familiarise oneself with the app components
- One feature/task like updating something that touches majority of the app — this is again aimed to get familiarity with the whole codebase in the quickest way
- Synchronising the data pipelines by adopting better serialisation protocols
- Creating avenues to improve app performance (by profiling and benchmarking)








