Senior Front End Developer

2 weeks ago

United Kingdom Koiji Full time

We are looking to hire a front-end developer who has 6+ years' experience in React Native and Typescript . This is a remote position but you must be located in the UK, preferably in or near London. You will be joining an elite team with an elite product.

About Us:

We spent six years researching what makes you and anyone else who you are. During this research, we decided to put this understanding into a matchmaking app to upgrade the market and actually solve the currently unsolved problem of ‘how do I meet the right person for me?’.

Our app, Koiji, has been developed in React Native in the front-end and PHP/Laravel in the back-end. We wish to migrate the code from React Native to TypeScript on the front-end for scalability purposes.

General Requirements:

  • 6+ years’ experience in React Native and Typescript, 4 of which ideally will be in start-ups
  • Experience working in a small team (2-10 devs)
  • A collaborative approach to build apps and solve complex problems
  • Attention to detail and problem-solving skills
  • Ability to write clean, well-documented code that follows good coding practices
  • Complete understanding of the Full Mobile App Development lifecycle right from prototyping for both iOS and Android platforms
  • Knowledge of type checking, unit testing, typescript, prop types, and code debugging
  • To work with other developers and track development progress accurately and timely
  • To give accurate timelines for development
  • To meet deadlines given - trust is massively important for us as business, and other, decisions are made upon your estimations
  • To be fully committed to the product’s growth and scalability by producing excellent work product that rarely needs to be revisited
  • To have great soft skills for mentoring junior devs where appropriate

Front-End Requirements:

  • Mobile App Development Expertise: experience working with React Native mobile app development along with tools like Flux, Flow, Redux, etc.
  • React Fundamentals Proficiency : strong knowledge of React fundamentals such as Virtual DOM, component lifecycle, and component state
  • API Integration and Data Management : experience working with REST APIs, document request models, offline storage, and third-party libraries
  • React Native Ecosystem Familiarity: Well-versed in a variety of React Native software, React Native frameworks and technologies.
  • Strong TypeScript Proficiency : a deep understanding of TypeScript language features, including advanced concepts like generics, decorators, intersection types, and conditional types.
  • Experience with TypeScript in Large-scale Projects : experience working on complex projects with TypeScript, including architecting and maintaining large codebases.
  • Type Safety Practices : you should be proficient in leveraging TypeScript's type system to enforce type safety throughout the codebase, reducing runtime errors and improving maintainability.
  • Integration with JavaScript Libraries and Frameworks : experience in integrating TypeScript with JavaScript libraries and frameworks, ensuring seamless interoperability and type definitions for external dependencies.
  • Knowledge of Advanced TypeScript Patterns : familiarity with advanced TypeScript patterns such as type guards, mapped types, conditional types, and utility types, which can significantly enhance code quality and maintainability.
  • Understanding of Tooling Ecosystem : proficiency in TypeScript tooling ecosystem, including popular editors (e.g., Visual Studio Code), build tools (e.g., Webpack, Parcel), and testing frameworks (e.g., Jest).
  • Strong Object-Oriented Programming (OOP) Skills : a solid understanding of OOP principles and design patterns, such as SOLID principles, dependency injection, and composition over inheritance.
  • Knowledge of TypeScript Best Practices : familiarity with industry best practices and conventions for writing clean, idiomatic TypeScript code, including code organization, naming conventions, and module structure.
  • Debugging and Performance Optimization : Experience in debugging TypeScript code efficiently, as well as optimizing performance using TypeScript features like type narrowing and leveraging compiler optimizations.
  • Continuous Learning and Adaptability : Look for candidates who demonstrate a willingness to learn and adapt to new TypeScript features and best practices, as the language evolves rapidly.

FAQs:

  • This is a remote position but our team is based in London/elsewhere in the UK (remote and co-working space). You’d be expected to meet with the CEO from time to time to work together in person (rare). At some point we may get an office in London.
  • The salary range depends upon your technical ability and years of experience (more ability than experience).
  • Start Date: ASAP
  • This is a full-time position.

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