Senior Backend Engineer (Ruby on Rails) - Freelance

🚀 Senior Backend Engineer (Ruby on Rails) - Freelance

Location: Remote in Germany (HQ in Munich)

Rate: up to €500 per day (All-inclusive)

Language: English speaking

Start Date: ASAP

Duration: 2-4 Months+ (Project-based)

🌟 The Company

Do you want to create digital solutions that help patients better manage their health conditions and help doctors provide data-driven treatment? Then apply today!

Our client strives to give people with rare diseases individual insights, enabling them to make informed choices and live life to the fullest. Using the latest technology, they aim to bring data-driven insights to healthcare professionals, supporting them to improve lives through personalised care.

They are a small, dynamic team of experts in a scale-up environment, focused on continuously delivering high-quality solutions to the healthcare market. While they are a nimble digital health studio, they are backed by a large international Pharma company, offering the excitement of a startup with the financial stability of a corporation.

💡 The Project

As a Senior Backend Engineer (Freelance), you will join the team immediately to build and maintain the core of the platform, the API, and the Physician Dashboard.

This is a hands-on role where you will work with lean product teams to efficiently turn business requirements into finished features. You will modify API endpoints and the Postgres database to meet the changing needs of the patient app , while also leading development on the Physician Dashboard, a Rails web app with a responsive UI.

If you are a passionate engineer looking for an opportunity to make a meaningful change in the world, this is the project for you.

🎯 Responsibilities

• Core Development: Create and modify API endpoints and the Postgres database to support mobile app requirements.
• Web App Features: Lead the development of new features for the Physician Dashboard using Ruby on Rails.
• Best Practices: Work with the Lead Engineer to establish and execute Continuous Delivery (CI/CD) and Agile best practices.
• Quality Assurance: Drive test-driven development (TDD) by writing unit, functional, and integration tests, and reviewing team members' code.
• Collaboration: Work in conjunction with engineers to determine the most efficient way to implement features and solve bugs.

💻 Tech Stack

• Backend: Ruby on Rails
• Database: PostgreSQL.
• Architecture: Rails Engines , DDD, Design Patterns, SOLID principles.
• Testing: RSpec, Minitest, TDD.
• Infrastructure: AWS , Docker , Circle CI

🛠️ Your Experience

• 4+ years of professional work experience in IT/Software Engineering.
• Rails Expert: 3+ years of extensive experience with Ruby on Rails.
• Testing Culture: Strong experience with TDD and Ruby testing tools like RSpec or Minitest.
• Cloud & DevOps: Experience building solutions on AWS and working with modern build pipelines (e.g., Circle CI).
• Architecture: Experience with Domain-Driven Design (DDD) and SOLID principles.
• Regulated Industry: Ideally, you have worked on products in Software as a Medical Device (SaMD) or other regulated industries.

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🧬 You will be a cultural fit if...

• Autonomous: You are proactive, open to relationships, and able to manage yourself to get things done.
• Structured: You have a goal-oriented and cost-aware work ethic.
• Team Player: You are dynamic, open-minded, and able to work effectively in interdisciplinary teams.
• Pragmatic: You are interested in moving efficiently and your ideas help the team improve every day.

🎁 Benefits of this Contract

• High Impact: Direct contribution to a product that improves patients' quality of life.
• Remote Flexibility: Work fully remote from anywhere in Europe/Germany.
• Fast Process: Streamlined interview process with immediate decision-making.

📝 Interview Process

1. Intro Call: Experience & Culture check with the Head of Technology.
2. Technical Session:

• Technical Interview: Discussion with the backend team to assess Rails depth, architectural patterns (DDD/SOLID), and problem-solving abilities.
• Focus: Ability to write clean, testable code and reusability.
• Offer: Immediate decision and Statement of Work (SOW).