Responsibilities:
- Write effective, scalable code
- Develop Connectors tool GUI for various source and target systems/platform/products
- Test, debug, build and deploy UI components in the existing product
- Improve functionality of existing SDK/Frameworks
- JavaScript
- ReactJS
- Redux-Saga
- ES6 (or TypeScript) syntax
- Good problem-solving
- Good debugging
Good to Have:
- TypeScript experience
- Material UI experience
- JEST knowledge
- Git and Github/Gitlab/Bitbucket experience

About Semperfi Services and Solutions
About
Connect with the team
Company social profiles
Similar jobs
Role Overview
We are seeking a Frontend Engineer (4–5 years experience) responsible for
building responsive, high-quality user interfaces and delivering seamless
user experiences. The role requires strong knowledge of modern frontend
technologies, solid UI/UX design principles, and the ability to take full
ownership of frontend development. The ideal candidate will collaborate
with product, design, and backend teams to translate ideas into scalable,
user-friendly web applications.
Key Responsibilities
Develop and maintain responsive, high-quality user interfaces for web applications using modern frontend technologies.
Translate UI/UX designs and product requirements into clean,
efficient, and scalable code.
Ensure strong adherence to design principles, usability, and
accessibility standards.Take full ownership of frontend features, from development to deployment and optimization.
Collaborate closely with product managers, designers, and
backend engineers to deliver seamless user experiences.
Optimize applications for performance, speed, and cross-browser
compatibility.
Build reusable components and maintain a consistent design
system across the product.
Debug issues, perform testing, and continuously improve the
frontend architecture and code quality
Requirements
4–5 years of experience in frontend development.
Strong proficiency in HTML, CSS, and JavaScript.
Experience with modern frameworks such as React,
Angular, or Vue.js.
Good understanding of UI/UX design principles and
responsive design.
Ability to build scalable, reusable components and maintain
clean code.
Experience working with REST APIs and integrating
frontend with backend services.
Familiarity with version control systems (Git) and modern
development workflows.
Strong problem-solving skills and ability to work
independently with full ownership of frontend features.
Nice to Have
Experience with TypeScript and modern frontend frameworks
such as React, Angular, or Vue.js.
Familiarity with state management libraries like Redux or
Zustand.
Experience working with UI libraries or design systems
(Material UI, Tailwind, Bootstrap, etc.).
Requirement
Position : Sr React Js Developer
Location : Bangalore
Experience : MIN 4 years
Mandatory skills :
Reactjs, Javascript, Redux
NP : Immediate to 15 days
Ctc : As per company norms
Snr Web developer (New)
Knowledge in react JS, Javascript, HTML, CSS
Understanding of advanced hooks, redux, saga concepts, context API
Advanced understanding of ES6, ES7 JS, advanced javascript and typescript features
Understanding of coding practices, best practices, architecture
Understanding of advanced concepts in reactJS like observables, interceptors, code splitting, performance enhancement and SEO
Regards
sunitha,
HR Executive
We are looking for a full time Reactjs Developer who is well-versed with the process of combining the art of programming with the art of designing.
**Responsibilities:-**
1) Translation of the UI/UX design wire-frames to actual code that will produce visual elements of the application.
2) Work with the UI/UX design team and bridge the gap between graphical design and technical implementation.
3) Should take an active role on both sides and help in defining the look and functionality of the application.
**Skills**
1) Deep knowledge in React.JS Practices
2) Must have minimum 3 years hands-on experience with with NgRX or Redux.
3) Knowledge of JavaScript and HTML5
4) Knowledge of CSS and JS methods.
5) Writing non-blocking code and resorting to advanced techniques such as multi-threading
6) Build and deployment process knowledge. Roles and Responsibilities
Desired Candidate Profile
Perks and Benefits
We have an urgent opening for the React JS Developer.
Must have hands on experience for at least 2 years.
We are US based IT Company.
Working 5 Days a Week.
Best package in the industry.
Responsibilities:
1. Developing new user-facing features using React.js
2. Developing and implementing highly responsive user interface components using react concepts.
3. Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
4. Troubleshooting interface software and debugging application code.
5. Monitoring and improving front-end performance.
6. Translating designs and wireframes into high-quality code.
7. Proficiency with agile development methodologies
8. Work and collaborate with the rest of the engineering team
Skills and requirements:
1. Thorough understanding of React.js or Vue.js and its core principles
2. Experience with popular React.js workflows (such as Flux or Redux)
3. In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
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
Our company is seeking an Angular Developer who has the technical ability to implement user interfaces using JavaScript and the Angular framework. You will need to know the best practices and modern ways of creating interfaces and ensure the interface is able to interact with backend APIs. You will also need to have great communication and collaboration skills as you will need to interact with fellow frontend and backend developers regularly to ensure components can be integrated together.
Responsibilities
As an Angular Developer at our company, you will:
- Work with other team members.
- Design and implement visually aesthetic user interfaces.
- Identify issues with front-end code and rectify them to remove bugs.
- Create unit tests to ensure code is functioning as expected.
- Create well-written documentation.
- Ensure front-end code is able to query APIs.
- Audit code to identify bottlenecks of performance and fix them.
Requirements
Our ideal Angular Developer will have:
- The ability to problem-solve.
- High level of knowledge around the Angular framework and JavaScript.
- High-level knowledge of front-end interfaces.
- Fundamental knowledge of UX/UI.
- Fundamental knowledge of SEO.
- Good interpersonal skills
About TO THE NEW:
TO THE NEW (TTN) is a technology services company that designs, builds, & runs digital products and platforms for Fortune 500 companies, enterprises, SaaS, and consumer tech companies. We are recognized by global analyst firms like Gartner, Everest, ISG, and Zinnov for our capabilities in Digital Engineering, Cloud, and Data & Analytics. We have deep expertise in Experience design, Open source technologies across Web, Mobility, CMS, diverse Cloud infrastructures, DevOps, Big data & analytics, Quality, and test automation; combined with proven experience in Agile methodologies.
Founded in 2008, TTN is one of the fastest-growing companies with a growth rate of over 60% since 2017. Our passionate team of 2000+ “Newers” is spread across our delivery centers in Delhi, Dubai, NYC, and Sydney. TO THE NEW is a consistent winner of the prestigious ‘Great Place to Work’ award since 2015 and ranked #47 in the ‘Top 100 companies in India to Work’ for in 2019. Recently TTN was also recognized as one of the ‘Top 25 India’s best IT & IT-BPM workplaces’.
We take pride in our culture driven by passion for making an impact through technology and is backed by our emphasis on learning and development.
Responsibilities:
1. Create high performance, secure, responsive, clean and simple front-end builts in collaboration and discussion with backend developers, designers and product owners
2. Responsibility for resolving all issues assigned in a timely manner
3. Participate in and lead architectural discussions with a group of senior architects
4. Identify and establish best practices and frameworks keeping in mind parameters of performance, responsiveness, security, maintainability, extensibility, and reuse
5. Translate designs and style guides into interactive user interfaces, ensuring cross browser compatibility, performance and robustness
6. Deliver high quality code that is maintainable and readable.
7. Develop and maintain features using JavaScript.
8. Our clients would value you for your comprehensive knowledge and understanding of Front-end design and architectures
Requirements:
1. Experience in developing front-end technologies using Object Oriented JavaScript, React.js, HTML, & CSS
2. Understanding of various browser engines
3. Experience to handle cross browser compatibility issues
4. Experience of full software development life cycle and good understanding of version control systems like Git.
5. Experience with an agile development methodology, preferably Scrum
6. Excellent time management, multi-tasking and communication skills
7. Understand the needs of our users and customers at the beginning of each project
8. Provide complete, actionable, and timely technical feedback to your Agile team
9. Mentor fellow and junior engineers
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
Who are we? 👋
Toplyne is a global SaaS product built to help revenue teams, at businesses with a self-service motion, and a large user-base, identify which users to spend time on, when and for what outcome. Think self-service or freemium-led companies like Figma, Notion, Freshworks, and Slack. We do this by helping companies recognize signals across their - product engagement, sales, billing, and marketing data.
Founded in June 2021, Toplyne is backed by marquee investors and angels (we'll be happy to tell you how much we've raised, and from whom on call). We are building out our founding team as we speak and we'd love to chat with you!
And you are? 👩🏻🔧
You taking a lot of pride in writing scalable, readable & maintainable code. You have a product bent of mind. You like working in a fast paced environment and ship code most days of the week. You enjoy working cross functionally in a collaborative environment with designers, PM's to build the best product possible. You don't mind getting on customer calls to understand their perspective to build a better product or help them with issues they might be facing.
You're hungry, ready to hustle, and keen to learn!
What will you get to work on? 🏗️
As a founding member of the core engineering team, you will:
- Work with the founders in co-creating the product with early believers (read: customers)
- Develop massive, complex software systems that scale globally.
- Build and own a substantial part of the product and help build the culture of engineering within Toplyne
What do we expect from you? 🙌🏻
- Strong first principles
- Hustle! We're young, lean, and in our early days. You'd have to set up your own shop, work with design customers to find generalisable use cases, and build them out.
- Ability to collaborate with cross-functional teams to build and ship new features
- 2-6 years of experience
- Good understanding and experience working with javascript frameworks such as React.
- Work closely with developers and UX designers to ensure that the presentation layer is implemented in accordance with best above best practices and UX specifications.
What do we not expect from you? 🙅🏻♂️
- Not looking for a 10x engineer. We are ok if you are 1x but are really good at what you, a good human being & work well in a team.
Responsibilities
- Delivering a complete front end application
- Ensuring high performance on mobile and desktop
- Writing tested, idiomatic, and documented JavaScript, HTML and CSS
- Coordinating the workflow between the graphic designer, the HTML coder, and yourself
- Cooperating with the back-end developer in the process of building the RESTful API
- Communicating with external web services
Skills and Qualifications
- Proficiency with JavaScript and HTML5
- Professional, precise communication skills
- Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience
- Creating self-contained, reusable, and testable modules and components
- Ensuring a clear dependency chain, in regard to the app logic as well as the file system
- Ability to provide SEO solutions for single page apps
- Extensive knowledge of CSS and JS methods for providing performant visual effects and keeping the framerate above 30fps at all times
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Validating user actions on the client side and providing responsive feedback
- Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed
- Creating custom, general use modules and components which extend the elements and modules of core AngularJS
- Experience with all levels of operation available to the front-end, such as from creating XHRs in vanilla JS to using a custom wrapper around $resource
- Experience with building the infrastructure for serving the front-end app and assets
- Architecting and automating the build process for production, using task runners or scripts
- Documenting the code inline using JSDoc or other conventions
- Writing extensive unit tests using automated TDD tasks
- Creating e2e test suites for all components, and running them with Protractor (or a well reasoned alternative)
- Creating configuration, build, and test scripts for Continuous Integration environments










