Senior Frontend Engineer

Project overview

Hello,

We are called People More because we treat our employees with respect, but also because the projects we work on are for people and should be easy and pleasant to use. We are technological, but we look at the bigger picture :)

The company is made up of people with a huge client base in the country and abroad, for whom we build projects from scratch (UX, UI, frontend, backend, mobile) or in part. We work directly for our clients and also support our partners in their own solutions. This ensures a wide range of projects and the ability to change! We work with clients all over the world.

For the project that we are working on with our partner, we are looking for Senior Frontend Engineer.

Your duties will include:

• Designing, developing, and evolving microfrontend-based architectures for applications supporting digital payment services.
• Analysing and improving frontend performance, with a particular focus on Core Web Vitals and the responsiveness of customer-facing applications.
• Participating in all stages of the software development lifecycle, including requirements analysis, technical specification, implementation, testing, and production releases.
• Developing and maintaining frontend integrations with backend systems through REST and GraphQL APIs.
• Implementing interactive, real-time application features using Server-Sent Events (SSE) and comparable technologies.
• Building secure, reliable, and user-friendly interfaces for payment-related processes in accordance with relevant industry standards and security practices.
• Enhancing frontend development tools, improving developer experience, and contributing to efficient, modern engineering workflows.

Requirements

• Minimum 5 years of commercial experience developing modern frontend applications.
• Strong hands-on experience with TypeScript and at least one of the following frameworks or libraries: React, Vue, or Angular.
• Practical experience in designing and implementing microfrontend architectures.
• Experience developing, maintaining, and executing automated end-to-end tests using Playwright or similar testing frameworks.
• Solid understanding of frontend performance optimisation, including Core Web Vitals, application profiling, and bundle analysis.
• Proven experience integrating frontend applications with REST and GraphQL APIs.
• Familiarity with authentication and authorisation mechanisms, including OAuth2, OIDC, and JWT, as well as feature flags and progressive delivery practices.
• Regular use of AI-assisted development tools, such as GitHub Copilot, ChatGPT, Claude, or equivalent solutions, to improve coding efficiency and software quality.
• Very good English and Polish

Nice to have

What we offer:

Why it’s a good idea to work with People More?

What does the recruitment process look like?

• Previous experience developing products or applications in the payments, FinTech, or e-commerce sectors.
• Understanding of PCI DSS, Content Security Policy (CSP) configuration, and secure browser-based application architectures.
• Knowledge of web accessibility guidelines, particularly WCAG.
• Additional backend development experience with Node.js, Java, Python, or C#.
• Experience designing or developing embeddable frontend widgets or Software Development Kits (SDKs).
• We are open and honest and we solve problems instead of generating them.
• Maybe it’s obvious, but we really respect our employees and associates. We used to be software developers, too, and we appreciate that job!
• A small team
• An international working environment and international projects
• Private medical care
• Sports card
• Training courses
• Hybrid work: 1 day per week in the office (Kraków or Warsaw)
• If you are not satisfied with your work or your tasks, we’ll find a way out together!
• If you get bored, we will offer you a new product and new, fascinating tasks
• We will work on your brand together: you will get an opportunity to attend conferences, including as a speaker, and we will help you publish in recognized magazines and online
• We will facilitate your access to challenges that are usually difficult to get
• At any time, you can talk directly to the board of People More—we talk your language because the company’s founders are software developers and designers!
• A friendly remote initial interview
• A remote technical talk
• The decision to work together!

Project details

• Start: flexible
• Remote: hybrid
• Location: Kraków, ., PL
• Rate: 120-150 EUR/h