Mimecast Services Ltd

Senior Solutions Architect - Email & Collaboration Security - London UK Why This Role ExistsThe Email & Collaboration Security (ECS) product line sits at the intersection of some of the most consequential challenges in enterprise security today: AI augmented threats, sprawling collaboration surfaces, multi cloud delivery complexity, and the expectation that detection and response capabilities keep pace with a threat landscape that does not wait. This architecture is not greenfield. It carries two decades of accumulated product decisions, integration contracts, and operational constraints. The right candidate understands why that history matters before proposing how to move beyond it. Reasoning about legacy shape and evolutionary trajectory simultaneously is not optional; it is the job. The successful candidate will serve as connective tissue across product management, engineering, and the broader Architecture Leadership Team - turning customer and business problems into coherent, deliverable technical direction, and owning the decisions that give ECS engineering teams a stable foundation to move fast with quality. AI First Ways of Working Mimecast is an AI first engineering organisation and this is an operating expectation. The person in this role is expected to use AI tools as a genuine, daily part of how they work: for design exploration and iteration, documentation, analysis, prototyping, and research synthesis. This means having a real, practised opinion on where AI tooling accelerates quality decisions and where it introduces risk. It also means designing systems that incorporate AI components thoughtfully: understanding the implications of LLM integration, agent boundaries, prompt and data contract stability, and evaluation coverage for AI driven features. Candidates who treat AI tooling as optional or experimental are not the right fit for this role. The expectation is fluency and daily practice, not passing familiarity. ECS Domain Email threat detection and prevention Email security efficacy Collaboration security DMARC analyzer Data platform and observability Analysis and Response End user application integration Internal operations enablement What You Will Do Lead from Problem Space, Not Solution SpaceThe role engages at the problem framing stage, not after requirements have already hardened into tickets. This means facilitating workshops with PMs, UX, and engineers to surface real customer constraints and articulate what good looks like in business and user terms before any technical shape is proposed. Own Integration Contracts as Product ArtefactsThe durable interfaces - APIs, event contracts, data schemas - that connect ECS capabilities to the broader Mimecast platform are first class artefacts owned by this role. They outlast individual features, and the coordination work that makes integrations actually land across teams and time is part of the remit. Build the Architectural ContextEngineering Teams Operate Inside ADRs, service interaction patterns, NFR targets, and data contracts are not documentation - they are the substrate that lets engineering teams and AI assisted development workflows make consistent decisions at scale. The artefacts produced in this role are clear, reasoned, and durable. Govern Without BlockingGovernance is a mechanism for alignment and acceleration, not gatekeeping. Structure and discipline are introduced where they reduce risk or improve quality - and removed where ceremony adds cost without value. The role engages the Chief Architect early, pushes back constructively when platform standards do not fit the ECS context, and helps teams close decisions with conviction rather than endless review. Reason About Cost and Unit EconomicsInfrastructure choices are sized, cost trajectories modelled for new architecture work, and unexpected spend is flagged with a proposed remediation. The frame is cost per outcome - per protected mailbox, per remediated incident - not just monthly AWS spend. Communicate at Every AltitudeA one page decision record that lands with engineers, a solution brief that holds up under senior architecture review, a strategy narrative that resonates with product and commercial leadership - this role operates across all of those registers. Whiteboard sessions produce actual decisions, not just richer ambiguity. What You Will Bring 10+ years building and operating production SaaS systems, with at least 3 years in a Solutions Architect, Principal Engineer, or equivalent role carrying product shaping responsibility A genuinely broad architectural lens - thinking about system shape, data flows, and organisational constraints rather than reaching for the nearest deep technical rabbit hole Comfort operating across cloud native patterns (AWS, Kafka, managed services, distributed event architectures) at high throughput - able to reason about trade offs with confidence, without needing to be the most technically specialist person in the room Product Understanding - Not Just Technical Understanding Prior close collaboration with Product Managers and UX designers, with an understanding of jobs to be done framing and a real opinion on what makes a product bet good - not just a technical bet Genuine customer orientation: asking what problem the customer has before asking how to build the feature Understanding of SaaS unit economics, the commercial implications of architectural choices, and how to reason about scale from a product perspective as well as a systems one An understanding of what twenty years of software history means in a production system - no assumption of greenfield, and no treatment of legacy as only debt; it is accumulated context Structure and discipline as cognitive defaults, not imposed processes - thorough, well reasoned artefacts, and a habit of leaving things clearer than they were found An ability to connect dots across a large picture with many moving parts, make a call, and communicate it clearly - rather than waiting for certainty that will not arrive Self Direction and Strategic Initiative A proactive self starter who identifies the right problems to work on without being told, and drives them to resolution Comfortable acting independently within a set of principles, while keeping the right stakeholders informed and in sync - not seeking permission, but maintaining alignment Thrives with ambiguity and treats it as a problem to be structured, not a reason to pause Learning Orientation - Not Encyclopaedic Knowledge Able to reach a solution even without all the knowledge in front of them - a problem solver who knows how to navigate to an answer, not a mnemonic database AI tooling treated as a core capability multiplier, with a real daily practice in design work, documentation, research synthesis, and prototyping Stays ahead of where the market and the technology are going, and brings that signal back into product and architecture decisions Bonus Points Background in email security, threat detection, DLP, identity, or data platforms Familiarity with agentic AI, MCP (Model Context Protocol), or LLM application architecture Experience with eval design for AI features, product discovery practices, or data contract / data mesh approaches Exposure to M365 or GWS integration patterns, SMTP relay architecture, or cloud native security SaaS What We Offer Impact: architecture decisions that protect millions of mailboxes and shape the technical direction of one of Mimecast's core product pillars Voice: a direct working relationship with the Chief Architect and a genuine say in technology direction - not an advisory lane Senior peers: a small, high trust Architecture Leadership Team where everyone operates at a high level Qualifications Bachelor's degree in Computer Science, Software Engineering, or a related field - or equivalent demonstrable experience 10+ years of professional software engineering and architecture experience, with at least 3 years in a senior architecture or principal engineering role A track record of product shaping responsibility, not just technical delivery Active, daily use of AI development tools in a professional setting - not experimentation, practice Equal Opportunity Employer Mimecast is an equal opportunity employer committed to an inclusive and diverse workplace. We consider everyone equally: your race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or any other protected characteristic won't affect your application. The base salary range for this position is £124,000 - £186,000 base + benefits. This reflects the minimum and maximum target for new hire salaries for this position. This position may also be eligible for incentive plans and other related benefits. Our salary ranges are determined by role, level, and location. These factors and individual capabilities will also determine the individual pay offered.

Role Overview Regional Vice President, UKI - Lead the UKI business, own full accountability for the UKI ARR base and net new ARR performance, and be an integral part of the EMEA leadership team. Operating across a base of 12,000+ customers and hundreds of channel partners, the role directly leads 60 sellers and indirectly influences a further 60 across channel, customer success and sales engineering, driving growth through authentic leadership and operational excellence. What you'll do • Directly lead a team of 60 sellers across new business and expansion, driving revenue growth through disciplined pipeline management and a high performance sales culture. • Indirectly lead a further 60 across channel, customer success and sales engineering to deliver the right outcomes for Mimecast and its customers. • Collaborate with all customer facing and go to market functions to ensure customer success. • Provide leadership for employee experience across customer facing employees in the UK. Key Responsibilities Provide strategic and operational direction to the UKI sales organisation to meet corporate objectives and maximise sales revenue through partner driven sales. Recruit, lead, mentor and motivate the sales organisation to understand our company mission, vision, strategy and transformation initiatives. Create and drive new strategic go to market plans to scale to meet our company growth ambitions. Act as a strategic thought leader, advisor and partner to the SVP EMEA and the broader senior leadership team at Mimecast. Act as a change ambassador for global, EMEA and local business drivers and initiatives. Develop depth and rigour in operational cadence, including accurate and accountable forecasting aligned to company goals, creating a culture of understanding, support and coaching for the sales and supporting teams. Proactively share and seek best practices from leaders across the global sales organisation. Work closely with functions across the organisation to establish and develop strong, collaborative partnerships to ensure continued success. Build and maintain C level relationships with strategic channel partners including Softcat, Bytes, CDW and other key partners, ensuring Mimecast is the preferred cyber security vendor of choice within their portfolios. What you'll bring A strong listener. Driven by values and a sense of purpose. An energetic and inspirational leader. Passionate about driving operational discipline and excellence. Sales Leadership Experience - 10+ years of sales leadership in a client facing SaaS sales environment, deep cyber security and channel sales experience, direct accountability for a significant ARR base and net new ARR targets, with a demonstrable track record of meeting or exceeding both retention and growth commitments at scale. Team Building & Leadership - Proven track record of building and managing a diverse and multi functional team of 120+ members across direct and indirect reporting lines, ability to scale a sales organisation in a high growth software business, create a coaching culture for sales growth, and collaborate across a highly matrixed organisation. Scale & High Growth - Demonstrated history of leading businesses through significant scale, driving organic growth via net new enterprise logos, renewals and client expansion, including the ability to drive multi product adoption across a broadening portfolio, increasing wallet share and deepening customer dependency on the platform. Comfortable defining and executing the distinct motions required across Mid Market and SMB, recognising that velocity, coverage models and sales plays differ materially from enterprise, and building the right structure, enablement and leadership layer to succeed across all segments. Operational Excellence - Proven ability to develop and implement metrics driven operational discipline, deliver forecast accuracy and pipeline rigour aligned to corporate revenue targets, strong analytical and financial acumen, and proficiency in leveraging modern sales intelligence and productivity tools such as Salesforce, Gong, and AI powered platforms. Cyber Security Domain Knowledge - Deep understanding of the modern cyber threat landscape, including the evolution of email borne threats, ransomware, supply chain attacks, identity compromise and data exfiltration, ability to articulate the business risk and operational challenges customers face in securing a distributed, cloud first workforce, credible at C level with CISOs, CIOs and IT leadership, translating technical risk into commercial and reputational consequence. Culture, Talent & Winning Mindset - Builds teams that want to win, attracts and retains exceptional talent, leads with authenticity and high expectations, celebrates success loudly, learns from setbacks quickly, fosters a resilient, growth oriented mindset, and creates an environment where diverse perspectives are actively sought. Compensation The on target earnings (OTE) range for this position is £280,000-£420,000 (OTE) plus benefits. Additional incentive plans and benefits may be offered in accordance with company policy and local regulations. EEO Statement We're proud to be an Equal Opportunity and affirmative action employer. We particularly welcome applicants from traditionally underrepresented groups. We consider everyone equally: your race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or any other protected characteristic won't affect your application. Due to certain obligations to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment.

About Mimecast Mimecast is a global cybersecurity leader redefining how organisations secure human risk. Our AI powered, API enabled Human Risk Management platform is purpose built to protect organisations from the full spectrum of cyber threats-integrating cutting edge technology with human centric pathways to deliver visibility, strategic insight, and decisive action. More than 42,000 businesses worldwide trust Mimecast to stay ahead of an evolving threat landscape. Our portfolio spans email security, insider risk management (Incydr), human risk awareness and training (Mimecast Engage), and a Human Risk Command Center that scores, surfaces, and enables action on human risk across an entire organisation. About the role We are looking for a Director level Field CISO to join our Security function and report directly to the Global Field CISO. Based in London with two days per week in the office, you will serve as the primary trusted security advisor across our most strategic accounts in EMEA, operating at the intersection of customer success, executive advisory, and industry thought leadership. This position involves advisory support rather than pre sales or support functions and requires a deep understanding of human risk and technology integration. What You'll Do Act as trusted advisor to CISOs, CTOs, and board level stakeholders at top strategic accounts across EMEA, helping them build and mature their human risk management programmes. Guide customers through insider risk strategy, Incydr deployment, AI agent risk, and enterprise risk frameworks, translating Mimecast platform capabilities into measurable business outcomes. Support customers through audits, regulatory examinations, and compliance programmes across a fragmented regional landscape (PDPA, DIFC, POPIA, Saudi NCA, and more). Provide rapid response to security incidents affecting customers, regardless of direct product impact. Represent Mimecast at major EMEA security conferences (GISEC, GITEX, Black Hat MEA, sector specific FSI and government events) and advance the human risk narrative. Author whitepapers, research reports, and opinion pieces on human risk, insider threat, AI security, and the evolving threat landscape. Build and sustain a credible public profile across EMEA that extends the Global Field CISO's reach and reinforces Mimecast's position as the human risk authority in the region. Partner with sales on security sensitive enterprise deals, shortening sales cycles and lifting win rates through advisory credibility in regulated sectors. Support land and expand motions by deepening relationships within existing accounts and surfacing expansion opportunities. Log all advisory linked opportunities in CRM to build evidence of Field CISO ROI and demonstrate how security advisory translates to customer outcomes. Feed structured customer insights back to product and engineering to surface gaps in human risk capabilities and product features. Advocate for reductions in customer audit and compliance toil by pushing for product changes that simplify evidence collection. Contribute to the Mimecast CISO Customer Advisory Board (CAB) and regional CISO community events, building a customer community that values Mimecast as a long term security partner. What You'll Bring Depth of experience in enterprise information security, with more than 10years in a leadership role, including at least 3years as a CISO, VP of Security, or equivalent within an enterprise. Operational experience is mandatory. Bachelor's degree in computer science, information technology, cybersecurity, or a related field (Master's preferred) or equivalent senior security leadership experience. Advanced certifications: CISSP, CRISC, CISM, GCEIT, or equivalent GIAC. Proven ability to engage and influence C suite and board audiences with credibility and humility. Prior exposure to multiple EMEA sub regions with genuine cross cultural fluency. Comfortable operating as a Director level individual contributor without day to day management oversight. Salary and Benefits The base salary range for this position is £124,000-£186,000 plus benefits. This range represents the minimum and maximum new hire compensation for this role and may be eligible for incentive plans and additional benefits in accordance with company policy and local regulations. Equal Opportunity Mimcast is an Equal Opportunity and Affidavitive Action Employer. We encourage applicants from all backgrounds, including under represented groups. We consider all candidates equally without regard to race, gender, age, religion, sexual orientation, or any other protected characteristic. Successful candidates will undergo a background check in accordance with local law, with no requirement for a lie detector test in Massachusetts.

Mimecast Services Ltd is seeking a Director-level Field CISO in London. You will act as a trusted security advisor to top strategic accounts in EMEA, guiding them to build and mature their human risk management programs. The ideal candidate should have over 10 years in enterprise information security leadership, including 3 years as a CISO. This role focuses on advisory support, requiring deep knowledge of human risk and technology integration. The salary range is £124,000-£186,000 plus benefits.

Mimecast Services Ltd is seeking an Incydr Sales Specialist in Greater London to lead sales efforts for the Incydr product. This role involves building relationships, introducing Incydr to security buyers, and ensuring all activities meet privacy and security policies. The ideal candidate will have exceptional sales skills, a proven track record in SaaS sales, and deep knowledge of the cybersecurity landscape. Compensation includes an OTE range of £128,000-£192,000 plus benefits.