Senior Frontend Developer

About Altimi

Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services.

Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC and/or modify legacy infrastructures.

The main area of competence include Product & Application Engineering, DevOps, Cloud Security & Managed Services and AI & Data Enablement.

Role Overview

As a Senior Frontend Developer, you will play a key role in designing and building the userfacing layer of our modern booking and resourcemanagement platform. This product powers scheduling, automation, and multilocation operations for businesses of all sizes - from local service providers to global enterprise clients.

You’ll be responsible for creating highquality, scalable interfaces that support complex booking flows, realtime availability, automation rules, and integrations with external systems. You’ll work closely with product, design, and backend teams to translate intricate workflows into simple, intuitive experiences. We’re looking for someone who is confident and comfortable to actively shaping the product.

Responsibilities

Build intuitive, highperformance interfaces for online booking, calendar views, resource allocation panels, and availability management.
Develop complex UI interactions for multilocation, multitimezone, and multiresource scheduling scenarios.
Create userfacing components powering automation workflows (reminders, rescheduling logic, recurring visits, waiting lists).
Work closely with backend engineers to integrate GraphQL APIs and ensure efficient data loading and clientside performance.
Improve and evolve the booking widget used on websites and social platforms (e.g., Meta/Instagram integrations).
Contribute to enterprise features such as advanced permissions, configurable booking flows, and custom reporting interfaces.
Participate actively in productside discussions — proposing UX improvements, challenging feature assumptions, and ensuring feasibility.
Maintain a clean, modular frontend architecture and mentor teammates in best practices.

Requirements

7+ years of professional experience in frontend development.
Strong expertise in React.js, JavaScript/TypeScript, and modern frontend patterns.
Experience working with GraphQL and familiarity with Node.jsbased environments.
Solid understanding of performance optimization and scalable UI architecture.
Excellent communication skills with C1+ English.
Confident, proactive attitude - comfortable debating product ideas and providing strong, informed opinions.

What’s in it for you?

Join for a role, stay for the development: More than 40% of our team is working with us longer than 5 years. Explore diverse domains, projects and modern technologies through internal mobility.
Learn from the best: Almost 60% of all our colleague has over 10 years of professional experience.
Flexibility: Work fully remotely, full-time from our office in Wroclaw or in a hybrid model.
Practical benefits: private medical care, life insurance, sport card, English and German classes in small, online groups.