X3 Software Architects – Data & Performance – .NET, Azure, SQL, Cloud Architecture

Software Architect – Data & Performance – .NET, Azure, SQL – Scotland / UK Remote – Award-Winning, High-Growth AI SaaS Scale-Up

This hire will play a critical role in defining how data, AI, and large-volume workloads power the future of the platform.

This is not a “maintenance architect” role.

This is a hands-on architectural leadership position shaping the backbone of a high-impact SaaS product.

Your role will involve the following:

🌳 Defining scalable architectural solutions for high-volume data

🌳 Leading data performance and optimisation initiatives

🌳 Embedding security and privacy-by-design principles

🌳 Delivering and reviewing cloud-native Azure solutions

🌳 Driving architectural change within established codebases

🌳 Supporting how AI and data intelligence integrate into core product workflows

This is a role for someone who enjoys modernising, evolving and strengthening architecture — not just maintaining it.

We’re seeking a strong back-end architect operating confidently within:

🌳 Performance optimisation and query tuning

You’ll be comfortable navigating complex data environments and implementing architectural improvements without disrupting delivery momentum.

🌳 A senior back-end engineer or architect with strong system design capability

🌳 Experienced implementing architectural change in live SaaS products

🌳 Excellent at breaking down large, ambiguous problems into manageable deliverables

🌳 Confident managing risk, complexity and trade-offs

🌳 Strong collaborator who can align engineering with product and business goals

🌳 Comfortable in a fast-scaling environment with evolving requirements

🎁 What You’ll Get

🌳 33 days holiday (rising to 40 days with tenure)

🌳 4-week paid sabbatical after 5 years

🌳 20 hours paid volunteering time

🌳 Monthly team social time

Hybrid – Edinburgh or UK Remote

🌳 No mandated office days – autonomy and outcomes matter

🌳 Strong collaborative culture with optional in-office connection

This is a pivotal role influencing how data, performance and AI scale across the platform.

You’ll help define how customers access, use and interact with mission-critical data — driving measurable business results.

Immediate interview slots available for strong candidates.

📌 Please ensure your CV clearly demonstrates:

• Data-heavy or performance-sensitive systems

• Technical leadership within live SaaS environments

People & Planet Before Profit.

Building teams that leave the world better than we found it.