Senior AI-First Solutions Architect - Email Security

Mimecast; Greater London; On-site; GBP 124,000 - 186,000; Full time

Benefits offered by this job

Competitive base salary

Benefits package

Job summary

Mimecast in London is seeking a Senior Solutions Architect for Email & Collaboration Security. You will shape technical direction across product management, engineering and the Architecture Leadership Team, translating customer problems into durable architectural outcomes for ECS.

You will own integration contracts, ADRs, and data contracts, ensuring scalable, cost-aware designs that support AI-enabled workflows while balancing risk and speed.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 10+ years of professional software engineering and architecture experience, with at least 3 years in a senior architecture or principal engineering role.
• Active, daily use of AI development tools in a professional setting - not experimentation.

Responsibilities

• Lead from Problem Space, Not Solution Space.
• Own Integration Contracts as Product Artefacts.
• Build the Architectural Context.
• Govern Without Blocking.
• Reason About Cost and Unit Economics.
• Communicate at Every Altitude.

Skills

SaaS architectures

AWS

Kafka

Cross-functional collaboration

AI tooling usage

Education

Bachelor's degree in Computer Science or related

Tools

SMTP relay patterns

Data platforms

Job description

Mimecast in London is seeking a Senior Solutions Architect for Email & Collaboration Security. You will shape technical direction across product management, engineering and the Architecture Leadership Team, translating customer problems into durable architectural outcomes for ECS.

You will own integration contracts, ADRs, and data contracts, ensuring scalable, cost-aware designs that support AI-enabled workflows while balancing risk and speed.