Senior Software Engineer (Infrastructure)

Thought Machine; Greater London; On-site; GBP 80,000 - 100,000; Full time

Benefits offered by this job

Highly competitive salary

Pension plan (match up to 5%)

Life insurance (3x annual salary)

25 days holiday

Flexible working hours

Access to learning materials

Cycle-to-work scheme

Sports and hobby clubs

Job summary

A leading fintech company in Greater London is seeking a Senior Software Engineer specialized in Infrastructure. The role involves deploying and maintaining software, automating deployment processes, and developing observability tools. Candidates should possess 5+ years of experience, a degree in a technical field, and proficiency in Python or Golang. This position offers a competitive salary, generous maternity and paternity leave, and flexible working hours, creating a supportive work environment.

Qualifications

• 5+ years of hands-on experience in software engineering.
• Experience developing production-ready tooling with Python or Golang.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.

Responsibilities

• Support the engineering team in building reliable applications.
• Help design and build tools for scalable services.
• Develop observability and orchestration tooling.

Skills

Production-ready infrastructure management

CI/CD systems

Cloud platforms

Python

Golang

Education

Degree in Computer Science or Engineering

Tools

Prometheus

Postgres

Docker

Kubernetes

Job description

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 and Sydney. We have raised more than $500m in funding and are now valued at $2.7bn. 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. The role spans across building mechanisms to automate and streamline deployment processes, to facilitating infrastructure changes in the data and streaming platforms which support our products, among other things. We build automation to provide an intuitive and reliable user experience to operate and integrate with Vault for Thought Machine engineers and bank SREs.

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.