Selective by design.
We are selective by design. Arcseer is built for individuals who have invested seriously in their craft — whether in security research, exploitation, systems engineering, or applied AI. The work demands more than familiarity with tools or frameworks; it requires judgement, discipline, and the ability to reason about complex systems under real-world constraints.
Much of what we do reflects the expectations of organisations operating at scale, where failure has material consequences. We value people who take ownership of problems, who are comfortable with ambiguity, and who hold themselves to a higher standard than is typically required.
"This is not an environment optimised for comfort or speed alone, but for those who want to do work that will endure scrutiny and deliver meaningful impact."
Current openings.
We're looking for a progressive, hands-on People Operations Manager to help build and scale our people function from the ground up. This is a true generalist role for someone who thrives in early-stage environments, enjoys wearing multiple hats, and is passionate about creating a high-performing, people-first culture.
As our People Operations Manager, you will play a pivotal role in shaping the employee experience as we grow. This is not a siloed HR role – you will be a jack-of-all-trades, owning everything from hiring and onboarding to culture, performance, and compliance.
In an early-stage environment, priorities will evolve quickly, so adaptability, pragmatism, and sound judgement are critical. You will partner closely with leadership to design and implement scalable people practices while also rolling up your sleeves to execute day-to-day operations.
Key responsibilities include:
- Building and refining hiring processes to attract high-quality talent
- Designing onboarding experiences that set employees up for success
- Supporting managers with performance management and development frameworks
- Establishing core people policies and ensuring compliance with relevant regulations
- Driving employee engagement, culture, and internal communication initiatives
- Managing HR operations including contracts, benefits, and employee records
- Acting as a trusted advisor to leadership on people-related decisions
You will thrive in this role if you:
- Enjoy working across a broad range of people topics rather than specialising in one area
- Are comfortable operating with ambiguity and limited structure
- Take ownership and execute with a bias for action
- Balance empathy with commercial awareness
- Are motivated by building something from scratch and seeing it scale
This is an opportunity to define the people function in a growing company and have a meaningful impact on how we hire, develop, and support our team.
An ambitious, customer-centric entry-level role focused on building relationships, understanding customer needs, and contributing to the growth of Arcseer. Ideal for someone looking to develop a career in cybersecurity sales within a fast-moving, early-stage environment.
As a Business Development Executive, you will be at the forefront of engaging with prospective and existing customers. This is a hands-on, learning-focused role where curiosity, energy, and a customer-first mindset are critical.
You will be responsible for building rapport with customers, understanding their challenges, and helping communicate how Arcseer can support them. You will also play a key role in feeding customer insights back into the business, helping shape product development and positioning.
Key responsibilities include:
- Engaging with prospective customers via outreach, events, and inbound enquiries
- Building strong, trust-based relationships with customers
- Understanding customer needs and articulating Arcseer's value proposition
- Supporting senior sales team members in progressing opportunities
- Maintaining accurate and up-to-date records in CRM systems (e.g. HubSpot)
- Feeding customer insights into product and marketing teams
You will thrive in this role if you:
- Have a strong interest in cybersecurity and technology
- Are naturally curious and enjoy learning quickly
- Are confident communicating with a range of stakeholders
- Take a proactive, customer-first approach
- Are organised and developing strong CRM discipline
This role offers significant growth potential, with a clear pathway into more senior business development positions.
A high-performing, customer-centric enterprise sales role for a proven Business Development Executive. Focused on engaging senior stakeholders, navigating complex organisations, and delivering value-led outcomes across £20k–£500k deals within a fast-growing cybersecurity environment.
As a Senior Business Development Executive, you will play a central role in driving Arcseer's enterprise growth across the UK market. You will be responsible for originating and closing high-quality opportunities, working with customers to understand their needs, and positioning Arcseer's platform in a way that delivers meaningful security and business outcomes.
This role requires strong enterprise sales capability – including navigating procurement, managing multiple stakeholders, and maintaining momentum through 3–6 month sales cycles. You will engage regularly with CISOs, CIOs, and senior technical stakeholders, requiring both commercial credibility and a solid understanding of cybersecurity within large organisations.
A Challenger Sales mindset is expected. You should be comfortable leading insight-driven conversations that reframe customer thinking, while maintaining a strong customer-first approach throughout.
Key responsibilities include:
- Owning and delivering against an annual quota of £1m+
- Building and progressing a pipeline of enterprise opportunities (£20k–£500k deal sizes)
- Engaging with senior stakeholders including CISOs, CIOs, and security leadership teams
- Navigating complex buying groups and procurement processes efficiently
- Leading structured, insight-led discovery and qualification
- Positioning Arcseer's offering in line with both technical requirements and strategic business objectives
- Maintaining rigorous CRM discipline and high-quality pipeline management
- Collaborating with product and leadership teams to feed back actionable customer insights
You will thrive in this role if you:
- Have 3–5 years of proven success in enterprise B2B sales
- Are experienced in managing 3–6 month sales cycles within complex organisations
- Have sold into or regularly engaged with CISOs, CIOs, or equivalent senior stakeholders
- Possess strong technical understanding and familiarity with cybersecurity in large enterprises (direct cyber sales experience beneficial but not essential)
- Demonstrate a Challenger Sales approach, bringing insight and constructive tension to customer conversations
- Exhibit high levels of personal discipline in CRM usage, forecasting, and pipeline hygiene
- Combine a customer-first mindset with strong commercial execution
- Are primarily UK-focused, with international sales experience considered an advantage
This is a high-impact role offering the opportunity to shape Arcseer's enterprise presence, influence product direction through customer insight, and operate at the forefront of AI-driven cybersecurity innovation.
A hands-on Finance Director role for a commercially minded leader who can build and run the finance function in a fast-growing start-up. Responsible for both strategic financial leadership and day-to-day execution.
As Finance Director, you will take ownership of the finance function in a growing, early-stage business. This is a highly hands-on role – you will be as comfortable building financial models and managing cash flow as you are setting financial strategy and supporting leadership decision-making.
You will work closely with the leadership team to ensure strong financial discipline, clear visibility of performance, and a scalable foundation for growth. In the early stages, this role will span everything from core financial operations through to strategic planning, requiring pragmatism, ownership, and a bias for action.
Key responsibilities include:
- Owning the end-to-end finance function, from day-to-day operations to strategic planning
- Managing cash flow, forecasting, and financial modelling to support growth
- Preparing management accounts, budgets, and board-level reporting
- Ensuring compliance with statutory, tax, and regulatory requirements
- Establishing and improving financial processes, controls, and systems
- Supporting commercial decision-making with clear financial insight
- Managing external relationships (e.g. accountants, auditors, tax advisors)
- Preparing the business for future scale, including potential fundraising or investment activity
You will thrive in this role if you:
- Have experience operating in a start-up or high-growth environment
- Are comfortable switching between strategic thinking and detailed execution
- Take ownership and are willing to roll up your sleeves
- Have strong commercial awareness and can partner effectively with leadership
- Are pragmatic, solution-oriented, and comfortable with ambiguity
- Have excellent attention to detail alongside the ability to see the bigger picture
This is an opportunity to shape the financial foundations of a growing company, with significant influence over both day-to-day operations and long-term direction.
Speculative applications
If your background is relevant and you hold yourself to a high standard, we'd like to hear from you.