Principal Engineer

Posted 5 days 14 hours ago by Albany Growth

Permanent
Not Specified
Other
Not Specified, United Kingdom
Job Description

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