Senior Solution Architect - Email & Collaboration Security

Role Overview

The Senior Solution Architect for Email & Collaboration Security (ECS) plays a critical role in addressing significant challenges in enterprise cybersecurity, including AI-powered threats, extensive collaboration platforms, and complex multi-cloud environments. This role sits at the crossroads of legacy product decisions and future innovation, requiring an understanding of past architectural choices to guide future developments.

Key Responsibilities

• Lead problem discovery efforts before technical solutions are defined by collaborating with product managers, UX teams, and engineers to clarify customer needs and business goals.
• Manage and own integration contracts such as APIs, data schemas, and event contracts, ensuring durable and coordinated interfaces across product teams.
• Create architectural decision records, service interaction patterns, non-functional requirement targets, and data contracts that support consistent engineering and AI-assisted development practices.
• Implement governance that balances risk reduction and quality improvement without obstructing progress, actively engaging with senior architecture leadership to align standards appropriately.
• Analyze cost structures and unit economics with an emphasis on outcomes like protection per mailbox or incident remediation rather than just infrastructure expenses.
• Communicate effectively across all organizational levels — from detailed decision documents for engineers to strategic narratives for senior leadership.

Qualifications and Experience

• Over 10 years of experience developing and operating production SaaS systems, including a minimum of 3 years as a senior architect with substantive product-influencing responsibilities.
• Broad architectural perspective focused on systems design, data flows, and organizational factors rather than narrowly deep technical expertise.
• Familiarity and comfort with cloud-native technologies such as AWS, Kafka, managed services, and distributed event-driven architectures at scale.
• Close collaboration experience with product and UX teams, understanding jobs-to-be-done frameworks and product value beyond technical metrics.
• Strong customer-centric mindset emphasizing problem identification before solution design.
• Understanding of SaaS unit economics and scalability considerations both from technical and product viewpoints.
• Appreciation for complex legacy systems as context and an emphasis on clear, structured, and durable documentation and decision-making.
• Self-motivated with strategic initiative, able to work independently while maintaining stakeholder alignment, and able to navigate ambiguity by structuring problems.
• Advanced proficiency and daily use of AI tools for design, documentation, prototyping, and research synthesis as a core part of work processes.

Preferred Skills and Experience

• Experience with email security technologies, threat detection, data loss prevention (DLP), identity management, or data platforms.
• Familiarity with agentic AI, model context protocols (MCP), and large language model (LLM) architectures.
• Experience designing evaluation frameworks for AI features, product discovery practices, or data mesh strategies.
• Exposure to integrations with Microsoft 365, Google Workspace, SMTP relay architectures, and cloud-native security SaaS offerings.

What We Offer

• Opportunity to influence architecture decisions protecting millions of mailboxes and shaping a core product pillar's technical direction.
• Direct collaboration with the Chief Architect and a meaningful role in technology strategy beyond advisory capacity.
• Membership in a high-functioning, trusted architecture leadership team operating at an advanced level.

Additional Information

• This role is based in London, UK and is full-time onsite employment.
• Bachelor's degree or equivalent experience in Computer Science, Software Engineering, or related field required.
• Employment contingent on successful background checks consistent with local laws.
• The position complies with equal opportunity and affirmative action policies, encouraging applications from underrepresented groups.

Compensation

The salary range offered for this position is £124,000 to £186,000 annually, with additional benefits and eligibility for incentive plans. Salaries are determined based on role, level, location, and individual capabilities.

Equal Opportunity Statement

The employer is dedicated to creating an inclusive and diverse workplace. No applicant’s race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or other protected characteristic will affect their consideration.