Senior Software Engineer (f/m/d)

Ruby Berlin HR Consulting; Deutschland; Vor Ort; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A recruitment agency is looking for a Senior Software Engineer (Full Stack) in Germany to join a rapidly growing B2B SaaS company in the automotive sector. This role involves developing and enhancing features for their loyalty program using Ruby on Rails, taking ownership of complex tasks, and collaborating closely with product and design teams. Ideal candidates should have over 5 years of software engineering experience, strong expertise in Ruby on Rails, and the ability to work across the stack. Join this startup-like culture that emphasizes autonomy and responsibility.

Qualifikationen

• 5+ years of professional software engineering experience.
• Strong expertise in Ruby on Rails and the surrounding ecosystem.
• Ability to work across backend and frontend components with confidence.

Aufgaben

• Develop and enhance full-stack features with a focus on Ruby on Rails.
• Build functionality for the customer loyalty program, including backend logic.
• Collaborate with product managers, designers, and engineers in an agile environment.

Kenntnisse

Ruby on Rails

Full-stack development

API design

Problem-solving

Agile/Scrum

Tools

Postgres

CI/CD

Jobbeschreibung

About Us

We are a boutique recruitment agency supporting fast‑growing tech companies. Currently we are supporting our partner, a fast‑growing B2B SaaS company in the automotive industry (Berlin/Hamburg).

To support their rapid growth, we are looking for a Senior Software Engineer (Full Stack) with deep Ruby on Rails experience. You will play a key role in developing new features for their loyalty program while helping reduce workload on the current team by taking ownership of complex end‑to‑end initiatives. As a Senior Full Stack Engineer, you will work across the entire stack, primarily in Ruby on Rails on the backend and modern frontend technologies to build scalable features, improve system performance and shape the loyalty program that directly impacts thousands of workshops. This role is ideal for an engineer who enjoys both hands‑on coding and collaborating closely with product and design.

Requirements

• Develop and enhance full‑stack features with a strong focus on Ruby on Rails
• Build new functionality for the customer loyalty program, including backend logic, API endpoints, and frontend components
• Improve performance, scalability, and reliability of existing systems
• Take ownership of complex tasks to help reduce pressure on the current engineering team
• Collaborate with product managers, designers and other engineers in a fast‑moving, agile environment
• Write clean, maintainable, well‑tested code and support continuous improvement
• Contribute to architectural discussions and propose meaningful improvements
• Ensure smooth integrations between backend services, APIs, and frontend interfaces

Required Experience

• 5+ years of professional software engineering experience
• Strong expertise in Ruby on Rails and the surrounding ecosystem
• Full‑stack experience, ideally with modern technology
• Experience designing and implementing APIs
• Solid understanding of database technologies (e.g., Postgres)
• Familiarity with cloud environments, CI/CD, and deployment workflows
• Ability to work across backend and frontend components with confidence

Personal Attributes

• Strong ownership mindset with the ability to take pressure off a busy engineering team
• Excellent problem‑solving skills and a preference for simple, logical solutions
• Clear communicator who collaborates well in an Agile/Scrum environment
• Thrives in a startup‑like culture with autonomy and responsibility