Lead Platform Architect for AI-Enabled Housing Platform

Alto

Greater London

Hybrid

GBP 110,000 - 170,000

Full time

5 days ago

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Benefits offered by this job

Everyday Flex

Annual leave 25 days + service

Volunteer day

Festive closure

Cycle to work

Calm App

Enhanced parental leave

Fertility support

Income protection

Private medical insurance

Gym in London

7.5% pension

Bonus up to 10%

Referral bonus

Job summary

Alto Software Group is moving its housing transactions platform onto a next-generation architecture designed for AI agents and people. You will own the target architecture, set boundaries, and code the foundations while guiding multiple teams to move features onto the new platform.

Expect end-to-end ownership from design to rollout with safety, data protection, and auditability baked in. You’ll work across .NET, TypeScript, React, and AWS, moving production data to modern services while keeping

Qualifications

Moved live systems before with both old and new running in production.
Lead safe displacement of legacy debt in long-lived codebases.
Designed for AI agents from the start, not retrofitted.
Defined data ownership boundaries and encoded them in code.
Set clear technical strategy and aligned cross-team decisions.
Presented proof-of-concept work for early feedback.
Consider user impact during migrations and changes.
Communicate design trade-offs clearly to product and business teams.

Responsibilities

Own the target architecture and key design decisions.
Define boundaries between system parts and standardize how everything is built.
Spend significant time coding to prove architectural choices.
Move real features onto the new platform and roll out to customers.
Guide and review teams building on the platform, removing bottlenecks.
Decide end-to-end ownership once decisions are made and plan rollback where needed.