
Senior Front End Engineer (React.js & React Native - Mobile Experience)
Job description
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a Front End software engineer, you will work on the ReactJS & React Native (Mobile Experience) powered user interface used by Fulfil merchants to manage their back-office operations. This is mission critical software and your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux) & React Native (Mobile Experience). You will ensure that these components and the overall application are robust and easy to maintain. In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality are important.
What You’ll Do:
- Collaborate with a small yet extraordinarily talented team of engineers to implement front-end technologies
- Develop new user-facing features using React.js & React Native (Mobile Experience)
- Work closely with the Design and Product teams to translate complex technical workflows into delightful user experiences
- Define how Fulfil builds user interfaces and ensure that we’re utilizing and keeping up with modern web standards
- Continually test, measure, and iterate on the results of your work in the spirit of continuous improvement
- Write clean, reusable, and well-tested front-end code
- Help to bridge the responsibilities of the Product and Engineering teams, spending time with both on the way to launching new products
- Architect efficient and reusable front-end abstractions and systems that drive complex web applications
- Build and contribute to open source projects
- Build reusable components and front-end libraries for future use
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
Requirements
We’re Looking for Someone With:
- 5+ years of experience as an engineer
- Experience in building large-scale web applications in a fast-moving team environment
- A strong understanding of UX and UI design standards
- The perfectionist’s touch on a pragmatist’s deadline: you strive for pixel-perfection and intuitive functionality
- Strong proficiency in JavaScript (2-4 Years of experience), including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js & React Native (Mobile Experience) and its core principles, with experience in popular React.js workflows (such as Flux or Redux)
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc
- The ability to bring any design to life with HTML and CSS, with cross browser compatibility and accessibility
- Smarts, humility, communication skills, and equal willingness to teach and learn
- Familiarity with RESTful and GraphQL APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in developing large client side JavaScript applications
- Familiarity with code versioning tools like GIT
- Experience with Javascript testing tools and test automation
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Demonstrated work beyond the front-end, experienced in integrating with a wide array of back-end technologies and services (e.g. experience with Python, AngularJS)
- Experience developing large client-side applications and optimizing them for performance
- You can straddle client and server development, creating APIs that drive web apps
- You understand the intricacies of timezones
- Web optimization, performance tools, and load testing
- You maintain or contribute to an open-source project

Similar jobs
We are looking for a talented Lead UI/UX Designer with experience in building SaaS
products to join our dynamic team. This role is perfect for a creative individual who thrives in a
fast-paced environment and is passionate about delivering exceptional user experiences from
concept to launch.
Salary No bar for good candidates.
Qualifications:
● Bachelor's degree in design, human-computer interaction, or related field; equivalent work
experience may be considered.
● Proven experience as a UI/UX Designer, preferably with a focus on SaaS products.
● Strong portfolio showcasing a range of UI/UX design projects and processes, including
wireframes, prototypes, and finished designs.
● Proficiency in UI/UX design tools such as Sketch, Adobe XD, Figma, or InVision.
● Excellent communication, collaboration, and problem-solving skills.
● Ability to thrive in a fast-paced, dynamic environment and manage multiple projects with tight
deadlines.
Link to apply - https://tally.so/r/wv0lEA
Key Responsibilities:
- Software Development:
- Design, implement, and optimise clean, scalable, and reliable code across [backend/frontend/full-stack] systems.
- Contribute to the development of micro services, APIs, or UI components as per the project requirements.
- System Architecture:
- Collaborate and design and enhance system architecture.
- Analyse and identify opportunities for performance improvements and scalability.
- Code Reviews and Mentorship:
- Conduct thorough code reviews to ensure code quality, maintainability, and adherence to best practices.
- Mentor and support junior developers, fostering a culture of learning and growth.
- Agile Collaboration:
- Work within an Agile/Scrum framework, participating in sprint planning, daily stand-ups, and retrospectives.
- Collaborate with Carbon Science, Designer, and other stakeholders to translate requirements into technical solutions.
- Problem-Solving:
- Investigate, troubleshoot, and resolve complex issues in production and development environments.
- Contribute to incident management and root cause analysis to improve system reliability.
- Continuous Improvement:
- Stay up-to-date with emerging technologies and industry trends.
- Propose and implement improvements to existing codebases, tools, and development processes.
Qualifications:
Must-Have:
- Experience: 2–5 years of professional software development experience in [specify languages/tools, e.g., Java, Python, JavaScript, etc.].
- Education: Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
- Technical Skills:
- Strong proficiency in [programming languages/frameworks/tools].
- Experience with cloud platforms like AWS, Azure, or GCP.
- Knowledge of version control tools (e.g., Git) and CI/CD pipelines.
- Understanding of data structures, algorithms, and system design principles.
Nice-to-Have:
- Experience with containerisation (e.g., Docker) and orchestration tools (e.g., Kubernetes).
- Knowledge of database technologies (SQL and NoSQL).
Soft Skills:
- Strong analytical and problem-solving skills.
- Excellent written and verbal communication skills.
- Ability to work in a fast-paced environment and manage multiple priorities effectively.
Job Description
We are looking for a Front-End Web Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.
Responsibilities
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Assure that all user input is validated before submitting it to the back-end
- Collaborate with other team members and stakeholders
Skills And Qualifications:
- Proficient understanding of web markup, including HTML5, CSS3
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
- Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
- Good understanding of ( Developer should know advanced JavaScript libraries and frameworks, such as AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS, etc.)
- Good understanding of asynchronous request handling, partial page updates, and AJAX
- Basic knowledge of image authoring tools to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as (Git / SVN)
Roles and Responsibilities
- Working with designers, product managers to collaboratively own the front-end layer at FalconBrick and deliver stellar end user experiences
- Building responsive and elegant mobile and desktop web UIs
- Test, debug and maintain the application software throughout the product lifecycle
- Architect, develop and maintain front-end libraries
Desired Candidate Profile
- You love working with JavaScript and are very familiar with JavaScript design patterns and can build fairly complex UI
- Have at least 2 years experience in development of responsive web/mobile applications using advanced JS and web technologies
- And with at least 1 year of experience building frontend UI with a framework like ReactJS
- Youre very comfortable in writing HTML and CSS and love designing beautiful webpages
- Have good communication skills, strong work ethics And are comfortable with agile, iterative development practices and code reviews
- Collaborate with engineering, design and product teams to build and ship new features.
- Seeing through a project from conception to finished product using Agile methodologies.
- Maintain and improve web applications. Optimize applications for maximum speed
- Design mobile-based features
- Self-contribution & able to manage and execute work through team members.
- Developing features to enhance the user experience.
- Create quality mockups and prototypes
- Translate application storyboards and use cases into functional applications.
- Create proof of concepts to demonstrate feasibility of proposed solution
- Continuously discover, evaluate and learn new technologies to stay at the forefront of technology innovation
- Write good quality, modular, reusable, well documented, unit-tested code.
- Design and build advanced applications for the Android and iplatforms form on.
- ReactNative
- Collaborate with engineering and cross-functional teams to define, design, and ship
- new features
- Work with outside data sources and APIs
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- •Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize
- development efficiency.
REQUIREMENTS
- Knowledge of developing trends and emerging standards in mobile apps and
- mobile payments
- Excellent technical knowledge of React Native
- Pro with Android and iOS UI design principles, patterns, and best practices
- Good understanding of RESTful APIs and how to connect Android applications to
- back-end services
- You care about quality and you know what it means to ship high-quality code
- Contribute to the design, architecture, and development of apps that are elegant,
- efficient, secure, highly available, and maintainable
- Highly motivated and maintain a positive, “can-do” attitude in an uncertain
- environment
- Follow and help cultivate consistent development best practices.
2. Following best practices in code quality
3. Working on version management
Job Title: UI Developer- HTML / CSS / JavaScript
Department: Technology and Research
Location: Mohali, Punjab
Reports to: Technical Lead
Context
Sampana Digital (SDPL) (http://www.sampanadigital.com">www.sampanadigital.com) is a digital technology company that provides end-to-end product engineering and digital transformation services. Our engineering services includes web & mobile application development, user experience design, cloud, testing and infrastructure managed services to transform businesses digitally. We also enable enterprises with contextual and personalized two-way multi-channel mobile communications, including SMS, voice, email and PWA technology.
We believe in small teams of smart, committed, and diverse individuals coming together and form a breakthrough insight. We are a team of passionate professionals to craft an unbeatable culture and services.
Come and join us!
Role Description
We are looking for a creative and skilled UI Developer to develop websites and applications with functionality and aesthetics in mind. The UI Developer will work with Back-End Developers and Front End Developers to ensure that the website is optimized for several devices and presented in an attractive way. As a UI Developer one must have excellent knowledge of HTML, CSS and JavaScript.
Job Responsibilities
- Writes high quality code & unit tests, builds, tests as per agreed timelines
- Participates in technical design and provides estimation
- Owns one or more small to medium features
- Becomes a go-to person in at least one area
- Communicates clearly and gets clarification upfront to minimise rework.
Skills
- Exhibit strong problem solving skills, helps other developers and demonstrates teamwork
- Understands detailed requirements and demonstrates excellent problem solving skills
- Deep understanding of software engineering practices, Design Patterns.
- Hands-on experience in UI framework
- Understanding of web markup, including HTML5, CSS3 and cross-browser compatibility issues.
- Proficiency in converting visual design (created in Adobe Photoshop, Illustrator,etc) into HTML CSS.
- Strong sense of ownership, drive and ability to deliver results
- Strong communication skills
- Must have experience in bootstrap/ responsive design
- Experienced in web performance testing tools








