Senior Frontend Engineer On-site Teya Porto

Teya is a Fin Tech company dedicated to building a better future for merchants, serving them through payment and management tools. Focused on efficiency, technology, and people, we provide merchants with the help they need to grow.

Teya is a payment and software service provider, headquartered in London serving small, local businesses across Europe. Founded in 2019, we build easy to use, integrated tools that enable our members to accept payments and boost business performance.

We’re here because we don’t believe there’s a level playing field that gives small businesses with a fighting chance against the giants of the high street.

We’re here because we see banks and legacy service providers making things harder for them. We don’t think the best technology or the best service should be reserved for those with the biggest headquarters.

We’re here to fight for a future where small, local businesses can thrive, and to commit the same dedication they offer all of us.

We’re looking for exceptional talent to join our mission. We offer a chance to create impact in a high-energy and connected culture, while benefiting from continuous learning opportunities, a supportive community which is proud to serve our mission, and comprehensive benefits.

We are seeking a highly skilled and passionate Senior Frontend Engineer to join our growing team, with a specialized focus on developing and enhancing our critical back‑office applications. In this pivotal role, you'll design, develop, and maintain cutting‑edge user interfaces that empower our team of 100 customer agents to efficiently support a vast network of over 800,000 merchants.

• Lead the design, development, and implementation of highly responsive and scalable web applications using React, Next.js, and a strong emphasis on Type Script.
• Collaborate deeply with product and design teams to understand the unique needs of our customer agents and translate complex operational workflows into intuitive and efficient user interfaces.
• Develop robust, data‑intensive UIs that handle large datasets and complex business logic, ensuring high performance and responsiveness for our internal users, leveraging Type Script for robust type checking and improved code quality.
• Write clean, maintainable, and efficient code, ensuring high performance and reliability of mission‑critical internal applications, with a focus on type‑safe development practices.
• Actively participate in code reviews, providing constructive feedback to peers and mentoring junior engineers, particularly on effective Type Script usage and best practices in the context of large‑scale internal tools.
• Identify and address performance bottlenecks and bugs, ensuring a smooth and uninterrupted experience for our customer agents.
• Contribute to the ongoing improvement of our frontend development practices, tooling, and standards, with an emphasis on internal system development and type safety.
• Stay up‑to‑date with the latest frontend technologies, trends, and best practices, applying them to enhance our back‑office platforms.

• 5+ years of professional experience in frontend development.
• Expert‑level proficiency in Type Script, including advanced type manipulation, generics, and understanding of complex type inference.
• Strong proficiency in React.js and its core principles, developed with a type‑safe approach.
• Extensive experience with Next.js for server‑side rendering, static site generation, and API routes, with a focus on Type Script integration.
• Experience with state management libraries (e.g., Redux, Context API, Zustand) in a Type Script environment.
• Familiarity with consuming RESTful APIs, with an understanding of how to define and use types for API responses.
• Strong understanding of web performance optimization techniques.
• Experience with version control systems (e.g., Git).
• Excellent problem‑solving skills and attention to detail.
• Strong communication and collaboration abilities, especially when working with internal stakeholders.

• Experience with Graph
  
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