Platform Solution Architect

Ncounter; City Of London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading Defence technology firm is seeking a Platform Solution Architect with strong AWS expertise for a hybrid role in London. The ideal candidate will have recent Defence experience and a proven track record in delivering secure cloud platforms. Responsibilities include leading delivery teams, collaborating with stakeholders, and driving cloud strategy. This position requires active SC or DV clearance and offers a hands-on architecture role with opportunities for mentorship.

Qualifications

• Defence experience in complex secure programmes.
• AWS platform expertise including cloud native design.
• Hands on experience with at least one scripting language.

Responsibilities

• Design and lead modern cloud platforms delivery.
• Collaborate with engineering and security teams.
• Encourage continuous improvement and support delivery teams.

Skills

Recent and relevant Defence experience

Strong AWS platform expertise

Experience designing scalable cloud platforms

Ability to lead and mentor engineers

Strong background in DevOps practices

Experience integrating PaaS and SaaS services

Strong communication skills

Hands on experience debugging systems

Experience with scripting languages

Active SC or DV clearance

Job description

Contract Platform Solution Architect
AWS Focus
SC or DV Cleared
London Hybrid
Outside IR35

Ncounter are supporting a major Defence initiative, and we are looking for a Platform Solution Architect with strong AWS expertise and a track record delivering complex cloud platforms in secure environments. This is a hands‑on architecture role suited to someone who can shape technical strategy, guide Agile teams and work confidently with senior customer architects across demanding Defence programmes.

You will help design and lead the delivery of modern cloud platforms that are scalable, resilient and aligned to strict nonfunctional requirements. You will influence key architectural decisions, collaborate closely with engineering and security teams and ensure delivery teams are working with clear direction. This role suits someone who enjoys solving real world problems, shaping cloud strategy and supporting teams through the entire delivery lifecycle.

You will also encourage continuous improvement, introduce new ideas and support the evolution of platform standards. Strong communication skills are important as you will be working with both technical and non‑technical stakeholders across supplier and Defence organisations.

Required skills and experience

• Recent and relevant Defence experience across complex secure programmes
• Strong AWS platform expertise covering cloud native design, automation and operations
• Experience designing scalable, secure and cost effective platforms in public cloud
• Ability to lead and mentor engineers within Agile teams
• Strong background in DevOps practices, CI and CD, version control and automation tooling
• Experience integrating PaaS and SaaS services into cloud platforms
• Ability to communicate technical decisions clearly and support senior stakeholders
• Hands on experience debugging and supporting distributed systems in production
• Experience with at least one scripting language such as Bash, Python, Go or Powershell
• Active SC or DV clearance, with DV preferred

This is a London based hybrid role with regular time on site. If you have deep AWS platform expertise and strong Defence delivery experience, please get in touch for a confidential discussion.