Senior Software Engineer (Infrastructure)

Thought Machine's mission is bold – to properly and permanently rid the world's banks of legacy technology. To achieve this, we have developed the foundations of modern banking through core and payments technology which run natively in the cloud. What we are attempting is hard and means we need great people working together to build great technology.

We have grown rapidly in the past few years – growing our team to more than 550 individuals across offices in London, New York, Singapore, Sydney and our newly established Engineering Hub in Lisbon. We have raised more than £500m in funding and our investors include Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, Standard Chartered Ventures, and more.

We have created a culture that enables our team to produce the best work in the industry while ensuring we have fun along the way. We're regularly cited as having a fantastic workplace culture and have been recognised by Sifted magazine as having one of the highest Glassdoor ratings for a UK fintech company and the industry's most generous employee share package. Named one of the world's most innovative fintechs by Global Finance Magazine, we were also recognised by the Financial Times as one of Europe's fastest-growing companies for two consecutive years—and a UK Best Employer for 2026.

At Thought Machine, our Senior Software Engineers specialised in Infrastructure play a crucial role in deploying and maintaining our cutting-edge software, developing tools and integrations with third-party infrastructure components used in our customers’ environments. Our team's mission is to abstract away multi-cloud complexity and reduce cognitive load for other developers. We treat our platform infrastructure, spanning orchestration, observability, and data —as a first-class product, enabling our internal teams and global clients to operate securely and reliably at massive scale.
Duties

• Support the engineering team in building reliable, scalable applications

• Help design and build tools to make our services scalable and highly available, automating wherever possible

• Develop observability and orchestration tooling to allow our customers to monitor and manage their deployments

• Contribute to disaster recovery, backup and redundancy tooling and strategy

• Assist in improving the quality of our codebase by building new tools and processes

Essential

• A degree in Computer Science, Engineering or a similar technical field

• 5+ years of hands-on experience

• Experience developing production-ready infrastructure management tooling with either Python or Golang

• Familiarity with at least one of the following:

  • Observability Tools (e.g. Prometheus, OpenTelemetry, Grafana)

  • Databases (e.g. Postgres, DuckDB)

  • Event Streaming platforms (e.g. Kafka)

  • Container Orchestration (e.g. Docker, Kubernetes)

• Familiarity with cloud platforms such as AWS, Azure or GCP

• Experience with CI/CD systems (e.g. Jenkins, CircleCI, GitLab, GitHub Actions)

Desirable

• Experience supporting production systems in high-consistency transactional environments

Benefits

• Highly competitive salary and commission

• Pension plan (match up to 5%)

• Life insurance (3x annual salary)

• Competitive maternity (six months fully paid) and paternity leave (four weeks fully paid)

• Shared parental leave (matched to our maternity leave for the same point in time)

• 25 days holiday and bank holidays

• Flexible working hours

• Cycle-to-work scheme

• Electric car scheme

• Season ticket loan

• Access to outstanding learning materials and courses

• Sports and hobby clubs, subsidised by Thought Machine

• All the latest tech you need

• Start the day properly with fresh fruit and cereals

• Huge range of healthy (and not-so-healthy) snacks, smoothies and drinks

• A talented and experienced team as your colleagues

• An environment where we encourage learning and progress

• Two charity days a year

• Weekly food pop-up

We actively hire candidates who demonstrate technical excellence in their field and welcome people of all ages and backgrounds, providing everyone with equal access to professional development. You are encouraged to apply even if your experience doesn't accurately match the job description. We also encourage applications from those with different abilities, including candidates with ADHD, autism, dyslexia or dyspraxia.