Ruby on Rails Developer (Senior)

Type of employment: Fulltime OR Contractor

Salary: 215 - 420 EUR/ManDay (depending on the offered job level, your professional, technical skills, knowledge, education and work experience)

Who We Are:

At Innovatrics, our mission is to simplify complex biometric and security challenges with smart technology solutions. We provide advanced biometric identification and attendance solutions that help organizations streamline operations, enhance security, and comply effortlessly with regulatory requirements. We're trusted by prominent companies across Slovakia and the Czech Republic, serving industries such as manufacturing, retail, and hospitality. Join us if you're passionate about technology that significantly enhances operational efficiency and security for businesses of all sizes.

Why This Job Is Exciting:

As a Senior Ruby on Rails Developer, you will play a crucial role in designing, developing, and maintaining scalable backend services that support critical operations within Innovatrics' Fingera platform. Fingera integrates attendance tracking, access control, and catering management into a unified system, significantly enhancing operational efficiency and security for businesses across various sectors, including manufacturing, retail, and hospitality. Your work will directly impact our customers' daily operations by addressing their pain points, such as attendance accuracy, fraud prevention, and efficient shift management.

You’ll have the opportunity to:

Within one month, you will…

• Familiarize yourself with our technical infrastructure, product architecture, and development workflows.
• Set up your development environment and complete onboarding tasks.
• Participate in your first sprint planning and delivery cycle.
• Build relationships with colleagues both inside and outside of your immediate team to foster effective collaboration.

Within three months, you will…

• Independently contributed to feature development, bug fixes, and enhancements in our Ruby on Rails applications.
• Fully engage in code reviews, providing constructive feedback to peers.
• Begin understanding deeper business logic and collaborate effectively with stakeholders.

Within six months, you will…

• Lead technical design discussions and effectively implement complex features.
• Identify performance bottlenecks and devise strategic solutions to address scalability issues.
• Mentor junior developers, promoting best practices and high coding standards.

Within one year, you will…

• Own and lead significant portions of our backend architecture, influencing long-term technical strategy.
• Continuously improve our technology stack, promoting innovation, scalability, and reliability.
• Actively participate in shaping product roadmaps alongside Product Management and Engineering leadership.

Requirements

Qualifications:

• Extensive experience (7+ years) with Ruby on Rails, preferably Rails 7.x.
• Expert understanding of Ruby fundamentals, advanced OOP principles, and design patterns (SOLID, GRASP).
• Demonstrable experience in system design, including microservices, monolithic architectures, event-driven, and domain-driven design.
• Proficiency in database technologies such as PostgreSQL, advanced SQL optimization, and performance tuning.
• Strong expertise in TDD and BDD practices with RSpec, Capybara, FactoryBot, etc.
• Deep knowledge of web application security (data encryption, secure protocols, XSS, CSRF, SQL injection prevention).
• Proven track record of using DevOps practices and tools (AWS, Docker, Kubernetes, CI/CD).
• Responsible approach to work, demonstrating autonomy and independence.
• Strong analytical skills with the ability to clearly describe complex technical challenges and propose effective solution strategies.
• Proven capability to effectively communicate and collaborate in cross-functional teams and settings, including with non-technical stakeholders.
• Experience mentoring team members and fostering knowledge sharing and continuous improvement.

Techstack:

• Ruby, Ruby on Rails (7.x)
• PostgreSQL, Redis
• AWS, Docker, Kubernetes
• Git, GitLab CI/CD
• Linux environments

Benefits