Senior Fullstack Engineer

EGYM; Berlin; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Development budget

Internal trainings

Flexible working hours

30 days holiday

Language courses (EN/DE)

Lease a bike

Wellpass membership

Inhouse gym

Company & team events

Hybrid work model

Corporate benefits

Sabbatical

Zusammenfassung

EGYM is seeking a Senior Fullstack Engineer (m/f/d) with a mobile focus to join our Berlin-based team. You will participate in end-to-end product development, bringing mobile frontend experience and helping to improve our backend systems.

You will drive customer-facing feature development, provide technical leadership, and contribute to platform wellness through the Community of Practice. Expect to build web interfaces, strengthen our mobile frontend, and ensure high-quality, scalable code

Qualifikationen

• Senior Fullstack Engineer with a mobile focus involved in end-to-end product development.
• Drive customer-facing features from idea to implementation and tests.
• Provide technical leadership, define roadmaps, architectures, and best practices.
• Improve platform wellness through participation in Communities of Practice and cross-team initiatives.
• Frontend web UI development and building our mobile frontend tech stack; write clean, testable code.
• Collaborate cross-functionally, unblock blockers, and maintain strong communication.

Aufgaben

• Own feature development from concept through delivery.
• Architect and guide frontend/backend solutions for scalable platforms.
• Lead code quality through tests and reviews and promote best practices.
• Collaborate across teams to align on product goals and timelines.
• Contribute to UX-focused design decisions and responsive interfaces.

Kenntnisse

Frontend development

Backend development

TypeScript

HTML/CSS

RESTful APIs

CI/CD

State management

Design systems

Team collaboration

Problem solving

Tools

Ionic Framework

Ionic Portals

Capacitor

TanStack Query

Recoil

Jotai

SQLite

Node.js

Jobbeschreibung

• As a Senior Fullstack Engineer (m/f/d) with mobile focus for our online services you are involved in all parts of the product life cycle: enjoy working on end-to-end product development, bringing in your mobile frontend experience and helping to improve our backend systems
• Feature Development: You drive the development of customer-facing features, from idea over user experience tests to implementation
• Technical Leadership: You provide technical leadership and direction to the team, helping define the team’s roadmap, architecture, processes, and best practices
• Platform Improvement: You participate in the Community of Practice to improve platform wellness within the organization, including bringing ideas for improvement and taking ownership of the next step
• Frontend Development: You create web-based user interfaces and tools and help us build our mobile frontend tech stack
• Code Quality: You write well-designed, testable, efficient code by using the best software development practices
• Collaboration & Communication: You can unblock yourself, support and effectively communicate cross-functionally in order to achieve results
• Technical Expertise: You seamlessly convert data structures, design scalable solutions that work across multiple teams and proactively identify bug-prone areas in the code
• Design & UX Focus: You are passionate about user experience, interaction design and responsive design
• Adapt to fast-paced Changes: You are interested in some of the latest trends of software engineering: build systems, test automation and continuous delivery
• Your training goals for the first 6 months
• Ownership & Delivery: You take full ownership of your work, understand its architecture, and deliver on product requirements while continuously improving testability and functionality
• System Knowledge: You are familiar with the EGYM ecosystem and understand the roles of different teams within the software engineering department
• Team Integration: You seamlessly blend into the team and company culture
• Codebase Proficiency: You are proficient in working with and effectively contributing to our codebase

Benefits

• Development budget
• Internal trainings
• Flexible working hours
• 30 days of holiday
• EN & DE language courses
• Lease a bike
• Wellpass membership
• Inhouse gym
• Company & team events
• Hybrid work model
• Corporate Benefits
• Sabbatical

Web Technology Proficiency: You are a native web technologist with excellent HTML and CSS skills-complex UIs are no challenge for you—and you possess advanced TypeScript knowledgeCI/CD Proficiency: You have experience building pipelines and a strong understanding of end-to-end continuous deliveryMobile PWA Enthusiast: You are passionate about building mobile progressive web apps. Experience in Ionic Framework, Ionic Portals, Capacitor, and debugging native apps is a big plusAPI integration and strategic state management expertise: You are experienced in integrating APIs, organising data into state and efficiently managing it using TanStack Query, Recoil, Jotai and any other state manager, with an understanding of the nuances of when they are needed or notFrontend Expertise: You have at least 5 years of hands-on experience and proficiency in frontend development and running web servicesDesign System Knowledge: You have experience working with design systems like MUI or custom-built solutions as well as unit, integration, and end-to-end testingDatabase Experience: You have some experience working with databases, including running scripts, debugging by reviewing database structures, and hands-on experience with SQLite is a plusBackend Understanding: You are familiar with the Node environment and have some backend development experience-NodeJS and RESTful are a must, while Java or Golang is a plus