Systems Engineers

and Solution Architects

We are looking for Systems Engineers and Solution Architects to join the Principle One team, working closely with our clients and delivery teams across a wide range of projects in the Law Enforcement and National Security sector.


Responsibilities include:

  • Working closely with other team members such as Functional, Application, Data and Security Architects to develop designs to deliver new solutions and capabilities to meet customer requirements

  • Ensuring designs meet key functional and non-functional requirements and supporting full traceability

  • Working with customer technical authorities and product owners to ensure that they have a clear understanding of architecture and design proposals at an appropriate level and their impact on delivery

  • Working closely with our delivery managers to drive estimating effort to develop an understanding of potential solution costs and delivery timescales

  • Promoting good practice in engineering methods and consistency in delivery across Principle One

  • Coaching and mentoring junior staff


As a candidate you will have:

  • Experience across software design, infrastructure and systems engineering approaches

  • Strong customer facing skills and an aptitude for working as part of a team, coaching and mentoring junior staff

  • Experience of working under agile delivery methods (such as SAFe)

  • A strong understanding of modelling languages and tools (such as Archimate and Enterprise Architect)

  • Experience of Service Architecture and of preparing for transition into service


We are open to part time and flexible working arrangements and are committed to a policy of Equal Opportunity, Diversity and Inclusion. We offer a competitive salary, 25 days holiday (based on full time working) with flexibility for additional unpaid leave, private healthcare and a discretionary bonus scheme.


Although the role will be primarily based remotely to begin, we do anticipate that there will be some requirement to work part time from our London office in Vauxhall and with our customers on site as lockdown eases. Due to the nature of the work, we will require that you complete a BPSS security check and are willing to apply for further clearance.

Please email  to find out more or to provide us with your CV.

Tintagel House
92 Albert Embankment
London SE1 7TY

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