About the role
Job Description
We're looking for a Senior Frontend Engineer to join our FinTech Platform team and help us build seamless payment experiences for consumers and merchants.
In this role, you'll own consumer-facing and merchant-facing payment journeys, driving frontend architecture, performance engineering, and product quality. You'll work across modern web technologies, contributing to highly scalable and secure payment solutions.
What will you work on?
* designing and implementing microfrontend architecture across payment products and services, * owning performance engineering and continuously improving Core Web Vitals across customer-facing applications, * participating in the full development lifecycle, from requirements and specification through testing and release, * building integrations with backend services using GraphQL and REST APIs, * implementing real-time user experiences using Server-Sent Events and similar technologies, * developing secure payment-related user interfaces aligned with industry requirements and best practices, * contributing to frontend tooling, developer experience, and modern engineering workflow.
Qualifications
This cooperation may be a strong match if you:
* have at least 5 years of experience building modern frontend applications, * have hands-on experience with React, Vue, or Angular and TypeScript, * have experience designing and implementing microfrontend architectures, * have experience building and maintaining automated end-to-end tests using Playwright or similar frameworks, * understand frontend performance optimisation, Core Web Vitals, profiling, and bundle analysis, * have practical experience integrating REST and GraphQL APIs, * are familiar with OAuth2, OIDC, JWT, feature flags, and progressive delivery approaches, * actively use AI tools such as GitHub Copilot, ChatGPT, or Claude to improve development efficiency and quality, * communicate in English at B2 level or higher.
Additional advantages:
* experience in payments, fintech, or e-commerce products, * knowledge of PCI DSS requirements, CSP configuration, and secure browser-based architectures, * experience with WCAG accessibility standards, * backend development experience in Node.js, Java, Python, or C#, * experience building embeddable widgets or SDKs.
Additional Information
What we offer:
* the opportunity to build products that sit at the heart of InPost's growing financial services ecosystem, * ownership of business-critical solutions operating at scale, * a modern engineering environment focused on autonomy, accountability, and continuous learning, * collaboration with highly experienced product, engineering, and business teams, * access to cutting-edge technologies, event-driven architectures, and cloud-native solutions, * opportunities to shape technical standards, mentor others, and influence platform evolution, * full-time contract of employment.