Fullstack Developer (Flutter & NestJS) (w/m/d)

Aparkado UG; Köln; Hybrid; EUR 45.000 - 75.000; Vollzeit

Zusammenfassung

Join a dynamic startup where you can make an impact from day one! As a Fullstack Developer, you will develop high-performance applications for mobile and backend systems, contributing to architectural decisions and ensuring code quality through comprehensive testing. With a flexible hybrid work model, you will collaborate with a motivated team, tackling challenges and celebrating successes together. This role offers the chance to grow both professionally and personally while shaping a product that improves the lives of truck drivers across Europe.

Leistungen

Impact from Day 1

Dynamic Environment

Flexibility

Growth & Development

Team Culture

Qualifikationen

• Several years of hands-on experience in software development.
• Strong knowledge of Flutter for building performant UIs.
• Solid understanding of NestJS and modular development.

Aufgaben

• Develop and maintain a Flutter-based mobile app focusing on performance.
• Implement and enhance the NestJS backend, including API interfaces.
• Design and optimize MongoDB databases for performance.

Kenntnisse

Flutter

NestJS

MongoDB

Unit Testing

Integration Testing

Clean Code Principles

MVVM Pattern

State Management Solutions

Strong Communication Skills

Proactive Work Style

Tools

Docker

CI/CD Pipelines

Sentry

Google Cloud

Jobbeschreibung

Your role

As a Fullstack Developer (Flutter & NestJS), you will play a key role in our team, developing high-performance, scalable, and intuitive applications for both mobile and backend systems. We are looking for someone who doesn’t just write code but actively contributes to architectural decisions, takes testing seriously, and develops solutions independently. If you are a team player who enjoys diving into new technologies and tackling challenges, this is the perfect role for you! We are looking for someone who has in-depth experience in the backend and at the same time can actively support our frontend team.

Your tasks

• Develop and maintain our Flutter-based mobile app, focusing on performance and responsive UI
• Implement and enhance our NestJS backend, including modular development and API interfaces (REST & GraphQL)
• Design and optimize MongoDB databases for performance and scalability
• Ensure high code quality through testing (unit, integration) and applying Clean Code principles
• Utilize the MVVM pattern and built-in state management solutions in Flutter
• Collaborate with the team to deliver a solid MVP, balancing quality and speed
• Share knowledge and discuss best practices, architectural decisions, and new technologies with colleagues
• Take full ownership of projects – from planning to go-live

About you

Must-Haves:

• Several years of hands-on experience in software development with real-world projects (not just online courses)
• Flutter (mobile): Strong knowledge of building performant and responsive UIs
• Experience with state management solutions in Flutter
• Familiar with the MVVM pattern
• NestJS (backend): Solid understanding of modular development, REST & GraphQL APIs
• MongoDB: Proficiency in database design, querying, and performance optimization
• Testing is not just a buzzword for you – you value unit tests, integration tests & Clean Code principles
• Strong communication & teamwork skills – you enjoy sharing knowledge, collaborating, and knowing exactly when it’s needed
• Proactive & responsible work style – you take ownership of your projects and drive them forward independently
• Ability to negotiate and balance quality (usability) with time constraints, ensuring we always deliver a solid MVP
• Fluent English skills

Nice-to-Haves:

• Experience with HereMaps or similar mapping solutions
• Knowledge of cloud technologies (preferably Google Cloud)
• Familiarity with Keycloak or Auth0, including OIDC and OAuth2
• Experience with monitoring & logging using Sentry
• Agile mindset and experience with Scrum
• Ability to challenge architectural decisions
• Experience with DevOps tools such as Docker & CI/CD pipelines

Why Aparkado?

• Impact from Day 1 – Shape a product that improves the lives of thousands of truck drivers across Europe.
• Dynamic Environment – Work in a highly motivated startup with short decision-making processes.
• Flexibility – Hybrid work in Cologne or remote – the choice is yours.
• Growth & Development – We invest in your professional and personal growth.
• Team Culture – Be part of an ambitious team that celebrates success and tackles challenges together.