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.