Principal Engineer

Principal Back End Engineer (Ruby / AWS / Postgres / Redis)

Hybrid (UK – Remote-first with London office)

£95k – £120k + Benefits

Albany Growth are partnering with a high-growth UK-based SaaS company backed by recent investment and now ready to scale their engineering team with 2 senior hires.

They are now hiring a Principal Engineer to drive backend excellence across a complex, high-availability platform used by global customers.

This is a hands-on senior leadership role with significant influence across engineering standards, architecture, and mentorship. You\’ll work across a modern Ruby-based stack, and play a key role in scaling platform infrastructure and guiding technical decisions that impact millions.

Key Responsibilities

• Lead the design and development of backend services in a mission-critical platform
• Set and uphold engineering best practices across performance, testing, security, and delivery
• Mentor peers and contribute to the technical and professional growth of the wider team
• Own features from concept to production, balancing architectural integrity with delivery pace
• Collaborate closely with product and engineering leadership on roadmap planning and system evolution
• Contribute to compliance-focused, change-controlled deployments with high DORA metrics (elite-level performance)
• Continuously improve tooling, observability, and infrastructure to support scalable growth

Key Requirements

• Proven experience as a Principal / Lead / Staff level Engineer, ideally in SaaS or platform environments
• Expertise in Ruby on Rails and strong understanding of distributed backend systems
• Experience with infrastructure at scale—ideally across AWS, Terraform, Kubernetes, Postgres, Redis
• Comfortable working in fast-paced, collaborative, remote-first environments
• Strong communication and mentoring skills with a product-oriented mindset

📍 Remote-first (UK-based)

💵 £95k – £120k base + 5% pension + private healthcare + benefits

🎯 Mission-led product with complex real-time challenges

🔁 Modern stack: Ruby on Rails / AWS / Terraform / Kubernetes / Go (for performance-critical paths)

If you\’re ready to shape backend systems that underpin global infrastructure, apply using the link and we’ll be in touch with further details.

Principal Back End Engineer (Ruby / AWS / Postgres / Redis)

Hybrid (UK – Remote-first with London office)

£95k – £120k + Benefits