Senior Ruby on Rails Devloper

Reference: PIA_1787152345

Location: Remote (Belgium preferred, open to nearshore Europe)
Contract: 12-Month Initial Contract (Long-Term Engagement)
Team Size: 8-10 Engineers
Work Model: Primarily Remote, 1 Day per Month Onsite

The Opportunity

Backend Software Engineer to join a growing technology team focused on transforming and automating accounting processes. This role is ideal for an engineer who enjoys working on complex backend systems, implementing AI-driven solutions, and modernising legacy platforms.

You will play a key role in developing intelligent automation capabilities, integrating OCR technologies, and deploying AI-powered workflows that improve operational efficiency across the business. At the same time, you'll be expected to confidently work within and enhance an existing Ruby-based codebase.

This is a hands-on individual contributor position within a collaborative engineering team of approximately 8-10 people.

Key Responsibilities

  • Design, develop, and maintain backend services and APIs
  • Enhance and modernise legacy Ruby applications
  • Implement AI and machine learning solutions to automate accounting and finance processes
  • Develop and integrate OCR technologies for document processing workflows
  • Build scalable, reliable, and secure backend architectures
  • Collaborate with product, engineering, and business stakeholders to deliver automation initiatives
  • Identify opportunities to improve performance, maintainability, and system efficiency
  • Participate in code reviews, technical discussions, and architectural decisions
  • Support the continuous evolution of AI-enabled business solutions

Required Experience

  • Strong backend engineering experience
  • Proven experience working with Ruby/Ruby on Rails
  • Experience implementing or integrating AI/ML solutions
  • Experience with OCR technologies and document automation workflows
  • Strong understanding of API design and backend architecture
  • Experience working with legacy systems and modernization projects
  • Solid knowledge of software engineering best practices, testing, and CI/CD
  • Ability to work independently in a remote-first environment
  • Strong English communication skills

Nice-to-Have

  • Accounting, finance, or bookkeeping domain experience
  • Exposure to intelligent document processing solutions
  • Experience within fintech, accounting software, or automation-focused environments
  • Additional cloud platform experience (AWS, Azure, or GCP)

What's on Offer

  • Opportunity to work on cutting-edge AI and automation initiatives
  • Long-term project within a leading accountancy and advisory group
  • High level of autonomy and technical ownership
  • Remote-first working model with limited onsite requirements
  • Collaborative and experienced engineering team
  • Exposure to innovative AI, OCR, and workflow automation technologies

GCS is acting as an Employment Business in relation to this vacancy.

COMPETITIVE SALARY
Added 19/08/2026
Reference: PIA_1787152345

Senior Ruby on Rails Devloper

Belgium Freelance IT Audit & Risk Remote

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