UX Designer

Senior Full Stack Engineer

We’re looking for a Senior Full Stack Engineer who loves to build. This role is all about getting things working—fast—and then making them solid.

You’ll be hands-on across the stack, taking defined user journeys and turning them into real, clickable prototypes, then hardening them into reliable, production-ready features. There’s no people management here—just solving problems, writing code, and shipping.

You’ll work closely with your Innovation partner (who’s experimenting with new ideas and patterns) and help bring those ideas into the product in a practical, shippable way. We collaborate remotely, with in-person sessions to whiteboard, pair, and move things forward quickly.

Our Core Tech Stack

Frontend

• React + TypeScript (Vite)
• Storybook

Backend & APIs

• .NET (Minimal APIs)
• TypeScript (Node.js / Express)
• REST and gRPC

Testing

• Playwright (E2E & API)
• Vitest

AI / Process

• Agentic-driven code generation
• Automated workflow validation and refinement

What You’ll Do

• Build end-to-end features across frontend and backend—from idea to demo to production-ready.
• Turn lightweight wireframes and “good enough” requirements into working software.
• Prototype quickly, then clean things up: edge cases, error handling, performance, tests.
• Take AI-generated code and make it production-worthy.
• Plug experimental UI and workflows into our core applications and services.
• Work closely with design and engineering to keep things practical and moving.

What We’re Looking For

• You’re an experienced full stack engineer who likes shipping more than theorizing.
• You’re comfortable working across React + TypeScript and modern backend APIs.
• You enjoy ambiguity and don’t need everything fully specified to get started.
• You use AI tools to move faster—but you know when to step in and clean things up.
• You care about quality, testing, and building things that don’t fall over later.
• You’re self-directed, motivated, and take ownership of what you build.

What Success Looks Like

• Features go from idea to working demo quickly.
• Prototypes turn into stable, production-ready flows.
• Core admin and platform functionality “just works.”
• New ideas don’t stay experimental—they make it into the product.

ABOUT UNRAVEL CARBON

Unravel Carbon enables companies to assess their carbon footprint by tracking their digital financial footprint with its proprietary carbon emission factor model; making it easy, fast and convenient to become climate positive.

We aim to accelerate the participation of all companies, big and small, in the global fight against climate change. And we want to do it the 21st century way—autonomous, painless, and beautiful.

Unravel Carbon consists of a team of software engineers, data scientists, founders and climate experts with a passion to solve the world’s most pressing issue—climate change. Collectively, our leadership team has launched and invested in multiple companies, and are now combining their experience and knowledge here at Unravel.

We are backed by some of the world’s best funds and investors and are part of Y Combinator’s W22 batch. 

Unravel Carbon was founded in 2021 with headquarters in Singapore.

Unravel Carbon on LinkedIn: https://www.linkedin.com/company/unravelcarbon/

ABOUT THE ROLE

We are looking for early members of our India team. You will be part of the team that establishes our India product development team. We are looking for candidates who have high potential, are excited about tackling the climate change problem and are excited to grow in a high-growth environment while working with the Singapore HQ.

A junior/mid-level React developer. Must be comfortable to work in a small development team and have the initiative to work alone on smaller problem sets.

• Build frontend features using React & typescript
• Collaborate with the backend team on API requirements and contracts
• Analyse processes and code to troubleshoot problems and identify areas of improvement.
• Participating in continuing education and training to remain current on best practices, learn new technologies, and better assist other team members.
• Take lead on projects, as needed.

ABOUT YOU

• Willingness to learn, be a self-starter, and thrive in uncertainty; you would be one of the first few employees at an early stage startup, be prepared to venture into unknown territory, collaborate and learn
• Meticulous and detail-oriented
• Required skills:
• React, 
• Typescript,
• React-query, 
• GraphQL
• Charts & visualisations libraries
• Any ui components library skills
• Bonus skills:
• Next.js
• Server components
• CSS-in-Js

YOUR WORK STYLE

• An understanding of agile product development
• Self exploration and self learning of the latest technologies and applying them to solving the technical challenges our team face
• Self­-starter (proactive and independent) with an ability to prioritise different assignments and tasks to meet deadlines
• Comfortable working in a collaborative environment
• Eager to think outside of the box and creatively problem-solve

YOUR PREFERRED BACKGROUND

A Bachelor’s Degree in Computer Science, IT, or related discipline AND 1+ years working experience in the IT industry. 

WHAT WE OFFER YOU

We offer an exciting challenge for a purpose-driven person who thoroughly enjoys learning and takes up responsibilities in a multi-cultural, primarily virtual, and pioneering organisation.  

We nurture a culture that allows you to thrive, where your skills can be honed and your ideas will be heard, and where collaboration across teams and with global partners is the default.

JD for .Net:

• Strong knowledge on C#, Asp.Net Web forms and Web API

• Experience with Bootstrap, jQuery and Responsive web designing

• Experience with SQL server, Stored Procedure and performance tuning

• Excellent Problem solving, communication and Debugging skills

• Ability to learn and work on new technology in a short span of time

• Extensive experience with Object- Oriented Programming and Design patterns.

• Knowledge on .NET Core, Elastic Search, Knockout JS, Windows services are added advantage.

### Responsibilities:

* Collaborative Development:

 - Work closely with Product, UX/UI, and Backend teams to design, build and extend consumer facing products, platforms, and features.

* Reusable Components:

 - Develop reusable iOS software components for our platform, ensuring modularity and maintainability.

* Continuous Integration and Delivery:

 - Collaborate with QA to implement CI/CD pipelines for automated and manual testing, ensuring app releases maintain high standards.

* Performance Monitoring:

 - Monitor the performance of live apps, continuously improving code quality and user experience.

* Innovation and Evaluation:

 - Stay updated with new mobile methodologies and technologies, evaluating their potential integration into our development process.

### Requirements:

* Proven Experience:

 - Demonstrated experience in developing mobile applications, specifically on the iOS platform using Swift.

* Modern Development Practices:

 - Up-to-date knowledge of modern iOS programming paradigms and experience with native app development.

* API and SDK Expertise:

 - Experience in API design, SDK architecture, and the mobile software lifecycle development practices.

* UX/UI Design:

 - Strong exposure to UX/UI design with experience in creating intuitive apps with pixel-perfect interfaces.

* Computer Science Fundamentals:

 - Solid understanding of algorithms and data structures.

* Methodologies:

 - Familiarity with SDLC and Agile methodologies.

* Startup Experience:

 - Prior experience working in a startup environment is a plus.

Desired Experience

3+ years

Job Description

What You’ll Do

• Taking an active role in architecting the solutions we build
• Designing and implementing web applications using JavaScript and its frameworks (i.a. React, Vue, Angular), HTML5 and CSS3
• Working closely with the dispersed development team, client, and project manager in SCRUM methodology
• Ensuring that programming practices and code quality are respected
• Supporting other engineers with your expertise when needed (knowledge sharing)
• Leading your colleagues’ growth and development

What you bring to the table

• 3+ years of Experience with React. Good to have a working knowledge of React Native, Angular, VueJS
• Strong expertise with HTML, CSS, and writing cross-browser-compatible code.
• Good understanding of AJAX and JavaScript DOM manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Hands-on and implements complex React modules
• Able to implement automated testing platforms and unit tests
• Understanding of fundamental design principles behind a scalable application
• Proficient understanding of code versioning tools (Git)
• Critical thinker and problem-solving skills

Bonus if you have…

• Experience with Angular2+ and Node
• Experience with AWS or GCP infrastructure
• Curiosity about new languages, libraries, frameworks
• Contributions to open-source projects
• Experience with Selenium, or Jest or similar front end test frameworks

• Build fast and efficient next-generation web applications
• Implement new features and optimize existing ones
• Collaborate with Designers to iterate on the design
• Work closely with Backend Engineers to integrate APIs and other services
•  Find and address performance issues
• Identify and communicate front-end best practices
• Customer-focused, whether responding to support queries or developing new features and functionality.
• Able to provide constructive feedback and effectively review code, guiding other UI engineers in the right direction

• 3+ years of experience in UI/frontend development.
• Hands-on experience using React as a front-end development framework.
• Sound knowledge of front-end development languages, tools and methodologies like HTML5, CSS3, JavaScript and associated technologies and toolsets (e.g. jQuery, Sass)
• Able to write front-end code that is cross-browser and cross-device friendly, through responsive or adaptive techniques is essential.
• Working knowledge of AWS for product development and deployment is preferred
• Experience using Continuous Integration (CI) / Continuous Delivery (CD) systems for development and deployment.
• Proven knowledge of Test-Driven Development (TDD).

Responsibilities:

- Integration of user-facing elements developed by front-end developers with server-side logic.

- Writing reusable, testable, and efficient code.

- Design and implementation of low-latency, high-availability, and performant applications.

- Implementation of security and data protection.

- Integration of data storage solutions {mysql, redis}.

- Understanding the requirements and planning the implementation accordingly.

- Good interaction with the team. Good debugging skills.

Skills:

- Strong proficiency with JavaScript {optimized code}.

- Knowledge of Node.js and frameworks available for it {sequelize}.

- Understanding the nature of asynchronous programming and its quirks and workarounds.

- Optimization in terms of memory and time.

- Good understanding of server-side templating languages.

- Basic understanding of front-end technologies, such as HTML5, and CSS3.

- Understanding accessibility and security compliance.

- User authentication and authorization between multiple systems, servers, and environments.

- Integration of multiple data sources and databases into one system.

- Understanding fundamental design principles behind a scalable application.

- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.

- Creating database schemas that represent and support business processes.

- Implementing automated testing platforms and unit tests.

- Proficient understanding of code versioning tools, such as Git.

• This position involves testing activities of all phases of software development life cycle and the development of GUI automated tests for end-to-end testing of a Business-to-Business web application that spans Front Office (website) and Back Office (Linux) implementations. The successful candidate will be working closely in a team environment with product development engineers and quality assurance to create automated acceptance, functional, smoke tests and performance tests.
• Ownership of the entire test cycle for an Agile team, including story decomposition and sizing, test and test automation approach, test plans and objective creation, testing.
• Maintaining test suites and test tools, test environment setup, defect management, test execution and test reporting.
• Work on improving Best Practices in Test Management and Quality Assurance Process.

• 5-10 years of experience.
• Minimum 5 years of Experience in Selenium Web-driver. 
• Good understanding of QA methodology, automation expertise and ability to code.
• Good understanding of various operating systems such as Microsoft Windows and Linux/Unix.
• Good knowledge of SQL and relational database such as Oracle, MS SQL Server, and MySQL.
• Good understanding of browser technologies such as Internet Explorer, Mozilla, Firefox, and Google Chrome.
• Good knowledge of Rest API testing.
• Some knowledge of programming/scripting languages/environments such as XML, JavaScript, Perl, PL/SQL and Unix/Linux Shell, Python.
• Some understanding of network protocols such as TCP/IP, HTTP and SSL.
• Some knowledge of programming languages such as Java.
• Experience with tools such as Selenium strongly desired.
• Experience with tools such as cucumber strongly desired.
• Experience in supply chain management software and industry an advantage.
• Ability to work both independently and in a team environment. 
• Must possess critical thinking skills in addition to good interpersonal and communication skills. 
• Willing and able to create and adapt to new tools or technologies.