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Senior/Principal Software Engineer

Hybrid in London·Added 19 days ago (last checked 3 Nov)

Our summary

Salary
£70,000 - £100,000 a year

About £4,260 - £5,710 a month after tax.

Work mode
Hybrid, London
Contract
Permanent
Experience
Senior level

Skills

Requirements

What we're looking for

Please note: This role requires applicants to hold active, or recently active, SC or DV clearance.

  • Active, or recently active, SC or DV clearance (essential)

Pay & benefits

What you'll get

We’re guided by four core values that make Gemba a great place to work:

  • Our people are our most important asset, and we prioritise their needs.
  • We succeed and fail as a team, not as individuals.
  • We do the right thing and we do the thing right.
  • We keep an unwavering focus on the customer’s needs.

Away from our values, Gemba offers an excellent and comprehensive package to our Gembans, including great salaries, meaningful perks, a culture of truly rewarding and celebrating success, amongst many other core benefits like flexible pensions and PMI.

As an Equal Opportunity Employer, we recognise, and studies confirm, that often underrepresented candidates in the workplace are less likely to apply to roles unless they meet all skills and experience of the position.

At Gemba we celebrate diversity and are committed to creating a diverse and inclusive workplace, therefore we make sure that our recruitment and selection processes never discriminate based upon age, race, religion, disability, sex, sexual orientation, gender reassignment, marriage and civil partnership, or pregnancy, and actively welcome applications from all groups.

The role

At Gemba Advantage, we build secure, user-centred digital products for critical public sector organisations across the UK. Our teams work on complex, high-impact systems, the kind that have to be secure, scalable, and actually usable by the people who rely on them.

We're looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You'll help design and build modern cloud-native services, guide engineering standards, and solve genuinely hard problems with our customers.

What you'll do

  • Design and deliver secure, scalable software in small agile teams
  • Stay hands-on while shaping architecture and technical direction
  • Set engineering standards and mentor others
  • Work directly with customers to solve complex problems
  • Champion modern engineering practices (cloud, CI/CD, DevSecOps)

How you'll work

This role also requires applicants to be willing to work on-site up to 4 days per week.

Skills & Expertise

  • Strong experience delivering production systems in complex environments
  • Depth in at least one modern language (Java, TypeScript, Python, Go etc.)
  • Cloud/container experience and a security-first mindset
  • Confidence influencing technical decisions and improving teams


Tech we commonly use

  • Java • TypeScript • Python • Go
  • React / Angular
  • AWS • Kubernetes • Docker
  • Elasticsearch • MongoDB • relational DBs
  • CI/CD • GitOps • infrastructure as code
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