Technical Solutions Engineer

About Halon When you join Halon, you join a team with a clear vision and mission. If you are looking for a journey where you can make a real impact, we will support you every step of the way. As Halon continues to grow, so can you. Bring the ambition and drive to move forward, and you will find plenty of opportunities to take on new challenges, expand your responsibilities, and shape your career with us. Changing email infrastructure is not an everyday decision. It requires a trusted partner that can meet complex technical and business needs. Halon provides leading email infrastructure solutions, backed by one of the strongest teams in the email space. Our mission is straightforward, yet ambitious: to empower businesses through Dynamic Email Operations™. Email remains one of the most important communication channels for business success, and we provide secure solutions that enable flexibility, scalability, and control. About the Role We are looking for a talented, customer-focused Systems Engineer with a strong background in Linux and networking to join our global technical implementation team as a Technical Solutions Engineer. At Halon, we build advanced email infrastructure and security software for demanding, business-critical use cases. Our customers include organisations such as LinkedIn, SAP, Zendesk, Microsoft, Rakuten and 1&1. Customer satisfaction is central to our success: we work closely with our clients and consistently achieve an NPS of 70+. Responsibilities As our customer base continues to grow, we are expanding our technical implementation team. This is a diverse, hands-on, and dynamic role in which you will:

• Build proof of concepts for prospective clients, implement and support migrations for newly signed customers, and occasionally assist long-standing clients with more complex work on their existing systems.
• Support customers throughout the full journey—from pre-sales and implementation to ongoing technical engagement—creating continuity for both you and the client.
• Continuously learn and develop your expertise while working with large-scale, complex systems where every customer environment is different.
• Design and implement email systems using Halon server software and the Halon Scripting Language.
• Communicate with customers asynchronously via Slack and email, as well as in video meetings alongside Sales Engineers or Technical Account Managers.
• Collaborate closely with the product team, surfacing customer challenges and opportunities for improvement.

We believe you:

• Thrive in an autonomous environment and take ownership of customer implementation projects.
• Balance confidence in our ability to help customers succeed with curiosity, humility, and a willingness to learn. This balance is central to our culture and to building trust with clients and prospects.
• Have experience with Linux networking and server technologies, containers such as Docker, orchestration tools such as Kubernetes, proxies such as HAProxy, and related technologies.
• Are highly comfortable working from the command line and can quickly research and learn unfamiliar technologies.

Technical foundation

• Scripting or programming experience, for example Shell, Python, Perl, or PHP.
• Linux server operations in complex production environments.
• Configuration management and automation tools such as Ansible, Chef, or Puppet.
• Container and orchestration tools such as Docker and Kubernetes.
• Elasticsearch/Kibana or similar observability stacks.
• Git, YAML/JSON, and REST APIs.

Nice to have

• Experience with email technologies and protocols, including SMTP, DNS, SPF, DKIM, and DMARC.
• Experience with email servers such as PowerMTA, Momentum, Postfix, or similar solutions.
• A solid understanding of computer systems, from disk latency and CPU instruction sets to the way software behaves and can be optimised.

What we offer

• A dynamic role where no two projects are alike and continuous learning is part of the job.
• The opportunity to work with large-scale, mission-critical systems.
• An ambitious, optimistic, and highly capable team.
• Competitive compensation and benefits, along with attractive incentive programmes.