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Tessell

Posted 28 Aug 2026

Sr. Staff Frontend Engineer

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Employment
Full time
Team
Software Engineering
Posted
28 Aug 2026

About the role

Responsibilities:

  • Design, implement, and maintain dynamic and responsive user interfaces across web platforms.
  • Collaborate with UX/UI designers, product managers, and backend engineers to create a cohesive and high-quality user experience.
  • Build reusable, modular, and scalable components using modern web technologies (e. g., React, Typescript).
  • Optimise the front-end architecture for performance, scalability, and maintainability.
  • Ensure the application is cross-browser and cross-platform compatible.
  • Write clean, efficient, and well-documented code with an emphasis on testability.
  • Develop UI components and patterns that adhere to design principles and our design system.
  • Troubleshoot and resolve UI issues and performance bottlenecks.
  • Contribute to the technical roadmap and provide recommendations for improving the overall user experience.
  • Stay up-to-date with emerging technologies and best practices in front-end development.
  • Participate in code reviews and mentor junior developers.


Requirements:

  • Bachelor's degree in computer science, engineering, or a related field (or equivalent experience).
  • 8+ years of experience in front-end development, with a focus on building complex, modern user interfaces.
  • Strong proficiency in JavaScript, HTML5 and CSS3
  • Experience with modern front-end frameworks like React (preferred) and TypeScript.
  • Knowledge of state management libraries (e. g., Redux).
  • Familiarity with version control systems such as Git.
  • Experience working with RESTful APIs and handling asynchronous data.
  • Passion for writing clean, maintainable, and well-documented code.
  • Excellent problem-solving skills and attention to detail.
  • Strong collaboration skills, with the ability to work in a fast-paced, team-orientated environment.


Preferred Qualifications:

  • Familiarity with UI design tools (e. g., Figma) and an understanding of design systems.
  • Knowledge of testing frameworks (e. g., Cypress).
  • Familiarity with containerisation (e. g., Docker) and cloud services (AWS and Azure).
  • Prior experience working in a startup environment or with agile methodologies.

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