Senior Presales Engineer

We are seeking a highly skilled Pre-Sales Engineer (Solutions Architect) to drive technical engagement and solution delivery for our customers. This is a pivotal role at the intersection of sales, engineering, and customer success, where you will leverage your expertise in DevOps, networking, and software development to ensure Glasswall solutions meet the precise needs of our clients.

About Us

We didn’t start out as a traditional security product. In the beginning, Glasswall was one of only two file sanitization filters in the US Intelligence Community’s highly classified networks. We are rated #1 by the National Security Agency. We designed Glasswall CDR to protect businesses against the most advanced file-based threats. Today, we’re trusted by commercial and government organisations around the world.

Our products specialise in ensuring the safe and secure handling of documents while integrating with enterprise ecosystems through advanced technologies such as REST APIs, ICAP, cloud storage monitoring, and internet isolation.

Our use of ICAP (Internet Content Adaptation Protocol) allows seamless integration with proxy servers, enabling real-time monitoring and enforcement of document security policies without disrupting network traffic. This capability is crucial for securing documents at scale across on-premises and cloud-based environments.

Inclusion

At Glasswall we believe that diversity of people and thought are central to our purpose. We are committed to making Glasswall a company that is attractive to people of many different backgrounds. This includes diversity in every sense of the word: those with different backgrounds, ages, ethnicities, gender identities, sexual orientations, ways of thinking and those with disabilities or neurodivergent conditions. We therefore welcome and encourage applications from everyone, including those from groups that are under-represented in our workforce.

One of our corporate objectives is to ensure that the organisational health of the firm is highly rated by our employees. We believe that this is only possible if we promote a culture of inclusion and respect across out business. Each quarter we survey employees on a range of questions relating to our organisational health. This holds a mirror-up to a business and ensures that we can focus on where we need to do better.

We have an Organisational Health Committee, which is chaired by a non-executive position. The panel has been formed to guide the leadership in taking positive action that supports a good work-life balance, family friendly relations and to be inviting to a diverse range of potential employees.

We also have a Women in Technology Group which has been formed to promote balance in the way that we communicate with, promote, encourage, and support people across our business.

Responsibilities:

Technical Pre-Sales Support

• Partner with the sales team to understand customer requirements and provide tailored technical solutions.

• Design and deliver technical presentations, demonstrations, and Proofs of Concept (PoCs).

• Develop solution architectures that integrate Glasswall products with customer environments, including on-premises, hybrid, and cloud setups.

• Demonstrate the use of ICAP to interact with proxy servers, ensuring seamless enforcement of document security policies.

• Respond to RFIs/RFPs with detailed technical documentation.

• Design and execute Proof-of-Value (PoV) engagements to demonstrate Glasswall\’s value, particularly in ICAP-enabled proxy environments and secure document workflows.

Customer Engagement

• Serve as the primary technical advisor during the sales process.

• Collaborate with clients to identify challenges in document security, compliance, or integration workflows and articulate how Glasswall solutions address these.

• Build strong relationships with customers to foster trust and ensure long-term satisfaction.

• Leverage experience in working with U.K. Government or financial service customers to navigate procurement processes and meet stringent security and compliance requirements.

DevOps, Networking, and Development Expertise

• Advise customers on deployment best practices, leveraging CI/CD pipelines, automation, and infrastructure-as-code principles.

• Troubleshoot and resolve integration challenges involving APIs, ICAP protocols, and proxy server configurations.

• Support customisation of Glasswall SDKs to suit client requirements, ensuring seamless integration with existing systems.

• Stay current on advancements in DevOps toolchains, cloud platforms, and security frameworks to guide customer implementations effectively.

Collaboration and Feedback

• Act as the voice of the customer by providing feedback to product and engineering teams to enhance product features and usability.

• Work closely with developers, product managers, and technical writers to improve documentation and developer experiences.

• Provide competitive insights and migration strategies for transitioning from alternative document security solutions.

• Support marketing and thought leadership initiatives by contributing technical expertise to whitepapers, blogs, and webinars.

Required Knowledge, Experience and Values:

• Education: Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.

• Technical Expertise:

o Strong experience in DevOps practices, tools (e.g., Terraform, CloudFormation, or Ansible), and cloud platforms (AWS, Azure, GCP).

o Deep knowledge of networking protocols (e.g., TCP/IP, DNS, VPN, HTTP/S) and proxy server configurations.

o Proficiency in programming languages (e.g., Python, Java, C#) and experience with RESTful APIs and SDKs.

o Experience with CI/CD pipelines, GitOps, and automation frameworks.

• Cybersecurity: Familiarity with ICAP, ZTNA, CASB, and modern security architectures.

• Customer-Focused Communication: Ability to translate complex technical concepts into clear, actionable insights for non-technical audiences.

• Problem-Solving: Hands-on troubleshooting skills to resolve integration and deployment challenges.

• Collaboration: Strong interpersonal skills to work effectively across sales, engineering, and customer teams.

Additional Preferred Experience:

• Experience with document handling solutions and/or integrations with Microsoft 365.

• Background in cybersecurity, particularly in intelligence, defence, or national security sectors.

• Familiarity with modern DevOps pipelines and container orchestration tools (e.g., Kubernetes, Docker).

• Demonstrated expertise in ICAP implementation and proxy server integration for content adaptation and security enforcement.

• Hands-on scripting and programming experience for automation (e.g., Python, Java).

• Exposure to observability practices, including monitoring, logging, metrics, and traces, to ensure operational excellence in deployments.

• Experience supporting U.K. Government customers, with knowledge of security clearance processes and compliance requirements.

Work/Life Balance

Our team puts a high value on work-life balance. It isn’t about how many hours you spend at home or at work; it’s about the flow you establish that brings energy to both parts of your life. We believe striking the right balance between your personal and professional life is critical to life-long happiness and fulfilment. We offer flexibility in working hours and encourage you to find your own balance between your work and personal lives.

Salary and Benefits

• Glasswall offers a competitive salary and incentives package.

• We offer flexible and remote working options, with hybrid working from our office in the Greater London area.

• Office travel and incidental WFH expense coverage.

• 25 days holiday (plus public holidays).

• Private Medical Insurance including mental health support and cancer care.

• Enhanced sick pay.

• Company sponsored life, critical illness, and income protection insurance.

• Contributory pension scheme.

• Access to ‘salary sacrifice’ benefits such as Cycle to Work and Tech Schemes.

The successful candidate will live in the United Kingdom and is comfortable working from home with some meetings being held in the London office.

We encourage you to apply even if your experience is not a 100% match with the position. We are looking for someone with relevant skills and experience, not a checklist that exactly matches the job description. We want to help you grow, and in return, you help us grow into a stronger, more inclusive organisation.

Glasswall is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, disability, age, or other legally protected status.

Application process

Interested candidates, can email jandersen@glasswall.com or visit http://careers.glasswall.com/