Senior Infrastructure Engineer – Messaging

Job summary

Please note this role requires you to pass Security Check clearance. For further information, please see 'Selection process details'.

Are you passionate about delivering secure, resilient communication platforms at enterprise scale?

Do you thrive on solving complex technical challenges while influencing strategic direction and driving innovation?

If so come and join us as a Senior Infrastructure Engineer.

You will play a leading role in the implementation, support, and continuous improvement of DWP's enterprise messaging and collaboration platforms. Your expertise will help ensure secure, reliable, and high performing communication services that enable colleagues across the organisation to connect, collaborate, and deliver critical services to millions of customers.

This is more than a technical role. You will provide leadership across teams, shape the future direction of our messaging and collaboration technologies, and champion engineering best practice. Acting as a trusted technical advisor, you will influence key decisions, drive service improvements, and help deliver modern, scalable solutions that support DWP's digital ambitions.

We're looking for an experienced infrastructure professional with deep knowledge of enterprise messaging technologies, particularly Microsoft Exchange and Microsoft 365. You'll combine strong technical expertise with strategic thinking, stakeholder engagement, and a commitment to delivering secure and effective collaboration services at scale.

Job description

• Lead the design, implementation, and support of Microsoft Exchange Online, On Premises, and Hybrid environments, ensuring secure, resilient, and scalable messaging services.
• Design and deliver integrations between Exchange and enterprise systems using Microsoft Graph API, Exchange Web Services (EWS), REST APIs, and PowerShell automation.
• Develop and maintain automation, tooling, and reporting solutions to improve operational efficiency, service performance, and user experience.
• Act as the technical authority for Microsoft 365 messaging and compliance capabilities, including eDiscovery, retention policies, litigation hold, and information governance.
• Ensure messaging platforms remain secure, highly available, and compliant with organisational, regulatory, and legal requirements through effective security controls and resilience planning.
• Collaborate with technical, business, security, and legal stakeholders to shape messaging strategy and deliver solutions that meet organisational needs.
• Provide technical leadership, mentoring, and guidance to engineers, championing best practice, continuous improvement, and knowledge sharing across teams.
• Maintain architecture, operational, and service documentation, while proactively identifying opportunities to adopt emerging technologies and improve platform capabilities.

Person specification

See selection process for further details.

If you would like to learn more about the role, please contact [email removed].

Technical skills

We'll assess you against these technical skills during the selection process:

• Technical Breadth

Benefits

Alongside your salary of £57,946, Department for Work and Pensions contributes £16,786 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides (opens in a new window).

We also have a broad benefits package built around your work-life balance which includes:

• Working patterns to support work/life balance such as job sharing, term-time working, flexi-time and compressed hours.
• Generous annual leave – at least 25 days on entry, increasing up to 30 days over time (pro–rata for part time employees), plus 9 days public and privilege leave.
• Support for financial wellbeing, including interest-free season ticket loans for travel, a cycle to work scheme and an employee discount scheme.
• Health and wellbeing support including our Employee Assistance Programme for specialist advice and counselling and the opportunity to join HASSRA a first-class programme of competitions, activities and benefits for its members (subscription payable monthly).
• Family friendly policies including enhanced maternity and shared parental leave pay after 1 year’s continuous service.
• Funded learning and development to support progress in your role and career. This includes industry recognised qualifications and accreditations, coaching, mentoring and talent development programmes.
• An inclusive and diverse environment with opportunities to join professional and interpersonal networks including Women’s Network, National Race Network, National Disability Network (THRIVE) and many more.

Hybrid Working

This role may be suitable for hybrid working, which is where an employee works part of the week in their DWP office and part of the week from home. This is a voluntary, non-contractual arrangement and your office will be your contractual place of work.

If a hybrid working arrangement is suitable for the role and for you, you will normally be required to spend a minimum of 60% of your contracted working hours from your DWP office.

If you have a disability, caring responsibilities, or other circumstances that may affect your ability to meet the minimum office attendance requirement, please discuss this with us using the contact details in this advert.

Salary Information

Pay for this role is from £57,946 to £73,205.

The maximum salary for the grade is £68,205, however a Digital Allowance of up to £5,000 per annum is available for exceptional candidates. Digital Allowance is non-salary, and non-pensionable, and is classed as a temporary allowance. It is reviewed annually where it could be retained, amended, or removed.

Our offer to successful candidates will be based on an assessment of your skills and experience as demonstrated at interview.

Existing Civil Servants who secure a new role on lateral transfer will maintain their current substantive salary.

Civil Servants who gain promotion will move to the bottom of the grade pay scale or receive a 10% increase applied to their current substantive salary, whichever is greater.

Any temporary allowances that you are currently in receipt of will not form part of the calculation to determine your pay. Any allowances that are in payment will cease when you move into your new role.

Things you need to know

Artificial intelligence

Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance (opens in a new window) for more information on appropriate and inappropriate use.

Selection process details

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