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Salary
≈ $92k – $188k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Seniority
Architect
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 6, 2026. First seen by Alion on Oct 1, 2026.

Overview
Company
Impact
Profile match
Harmonic Security prevents employees from pasting sensitive data into public generative artificial intelligence tools. Founded in 2023 in London, it classifies content with its own models rather than brittle regular expression rules. The product gives security teams visibility into which assistants staff actually use.
Backed by Storm Ventures, N47

AI is being run everywhere, by humans and agents. Harmonic Security governs all of it. The AI Governance and Control (AIGC) platform understands user / agent intent and data context in real time, giving security teams visibility and control across every tool and workflow so companies can move faster with AI while minimizing risk.

We operate in one of the fastest-moving spaces in tech: the emerging intersection of AI and cybersecurity. It's a market still being defined, and we're among the first to build natively for it - protecting sensitive data in real time, at the endpoint, with minimal friction for the teams using it. Enterprises get full visibility and control. Their people get to innovate without guardrails slowing them down.

Named to the Rising in Cyber 2026 list, Harmonic is gaining serious recognition and serious traction. We're led by deep cybersecurity expertise and backed by investors who know the space: N47, Ten Eleven Ventures, and In-Q-Tel.

As AI adoption inside the enterprise accelerates, the ability to safely observe, control, and enforce policy in real time isn't a nice-to-have. It's mission-critical infrastructure. That's what we build.

How We Work: AI-First by Design

Harmonic exists to help enterprises adopt AI safely and at scale. We hold ourselves to that same standard. Everyone here actively leverages AI tools to perform their best work - from deep research and writing to building robust processes and automating complex workflows. We expect every new hire to bring a genuine curiosity for AI and a commitment to using it to work smarter, faster, and with greater creativity.

For some, this involves tinkering and remaining open to emerging tools; for others, it means architecting entirely new systems with AI at the core. We will be transparent about expectations for every role and provide the tools and support needed for you to thrive.

About the Role

You'll play a key role in helping prospective and existing customers understand how Harmonic can address their unique challenges.

Your days will be a mix of engaging with prospects and existing clients to demonstrate the capabilities of our product through technical storytelling, building proof of value (POV) plans, and executing them smoothly and successfully. Our Solutions Architects are experts in bridging the gap between the customer and our product and engineering teams, ensuring that real-world customer requirements are clearly understood, helping to drive the evolution of our product.

Success in this role means building strong relationships with customers, guiding them through their AI adoption journey, and ensuring they feel confident and empowered to use Harmonic’s solution to its fullest potential.

What You'll Do

  • Responsible and accountable for all pre-sale technical activities

  • Collaborate closely with customers to create and execute tailored POCs that highlight how Harmonic simplifies data protection for the GenAI era

  • Work as part of the EMEA/DACH sales team to close new business opportunities and support existing customers through the lifetime of their contracts

  • Work closely with product and marketing to turn deep technical insights into compelling content and messaging

  • Stay on top of the competitive landscape to help shape our story and spotlight what makes Harmonic stand out

What You Bring

  • A proven track record in a solutions architect, solutions engineering, or pre-sales engineering role in the enterprise security space

  • Hands-on, day-to-day experience with AI productivity tools - both browser-based (ChatGPT, Gemini, Perplexity) and application-integrated (Claude, Claude Cowork, GitHub Copilot, Cursor) - and a practical understanding of how these tools handle sensitive data in enterprise environments

  • Demonstrated ability to thrive in fast-moving environments. Highly organized, able to manage competing priorities and a high volume of concurrent engagements, context-switch quickly, and make sound judgment calls about where to focus without waiting for direction

  • Hands-on experience deploying and managing software in enterprise environments, including working with MDM solutions such as Intune, JAMF, and Kandji

  • Comfort operating in ambiguity. Confident using new tools and environments, and troubleshooting live issues under pressure

  • Scripting experience (Python, shell, PowerShell, or similar)

  • A proactive, hands-on mindset. You take ownership, solve problems independently, step up for new challenges, and support the people around you

Bonus Points if You Have

  • Experience in customer-facing post-sales roles such as technical customer engineering or technical account management

  • Familiarity with value-driven solution selling. Able to connect technical capabilities directly to customer business outcomes and articulate ROI throughout the sales cycle

Why Join Us

This isn't just a job - it's a chance to help define a category. Harmonic Security was named to the Rising in Cyber 2026 list, and we're just getting started. We're building at the intersection of AI and security, carving out an emerging market where the rules haven't been written yet, and the people who join now will write them.

We believe today's talent is tomorrow's success, and we're committed to creating an environment where you can do the best work of your life.

  • Recognized momentum - We made the Rising in Cyber 2026 list, a signal that the market is taking notice

  • Rare market opportunity - Join early in a category-defining company at the convergence of AI and security, where your work directly shapes how enterprises tackle one of the biggest unsolved problems in tech

  • Competitive pay and meaningful equity - A real stake in Harmonic's success, not a token gesture

  • Comprehensive benefits - 401K, pension plan, generous PTO, and flexible hybrid work

  • A small, high-trust team that values transparency, creativity, and continuous learning - no politics, no bureaucracy

  • Thoughtful leadership - that cares deeply about your growth, not just your output

  • Annual global off-sites - past trips include Lisbon, Portugal and Nashville, TN

  • Real ownership - you'll shape the product, the culture, and the direction of the company from day one

Harmonic's Core Values

Flourish in the Unknown

We embrace new, unfamiliar situations that require initiative and rapid decision-making. We orient ourselves quickly and deliver results with minimal guidance.

Never Full

We raise our hands, take on challenges, and assist others whenever possible. We hunger for opportunities to learn and do more.

Perfect Harmony

We support one another to create cohesion and unity. We collaborate openly, share feedback honestly, and help everyone produce their best work

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