Staff Software Engineer

Staff Software Engineer – Backend – UK-Based – Up To £120k

Python, Java, AWS, Terraform

Are you a seasoned backend engineer ready to take the lead on complex systems at scale? I am helping a leading B2B SaaS find a Backend Staff Software Engineer to join a high-performing, collaborative, and mission-driven team building software that powers the global built environment.

This role can be remote from anywhere in the UK or if you are based in London hybrid – 2 days in office.

🚀 Why Join?

You’ll play a pivotal role in shaping and delivering robust backend systems using Python, and the tech stack also includes Java, AWS and Terraform, while mentoring engineers and championing technical excellence. You’ll join a rapidly scaling (25% in 12 months!), PE-backed SaaS company with over 20 years of product maturity and almost 1000 customers worldwide.

💼 What You’ll Do

• Own the full development lifecycle of complex features and systems
• Design scalable, distributed backend systems and lead architectural decisions
• Collaborate cross-functionally with Product and other Engineering teams to solve high-impact challenges
• Guide and mentor engineers, providing technical leadership and championing best practices
• Drive improvements in security, reliability, and performance
• Advocate for high-quality documentation and strong engineering culture

🧠 What You Bring

• 7+ years of backend engineering experience with deep Python expertise
• 3+ years in a technical leadership or staff-level technical role
• Strong architectural skills with microservices, CI/CD, and cloud infrastructure
• Experience in Agile/Scrum environments
• Bachelor's or Master’s in Computer Science or related field

Tech Stack: Python, Java, Terraform, Docker, AWS, MySQL, GitHub Actions

🎁 What’s on Offer

• Competitive salary
• 25 days annual leave + 8 bank holidays + 5 paid sick days
• Flexible remote working (2 in-office days per week for London-based team)
• Pension plan
• Parental leave and “Getting Started” stipend
• 5-day Work From Abroad policy

✨ Finally

You’ll be part of a passionate, diverse, and collaborative team dedicated to solving real-world challenges in architecture, construction, and engineering through powerful software tools. This role is looking for someone who is focused on technical rather than people leadership.