Principal Engineer

• Ship a committed piece of work to production within the first three months
• Identify platform improvements following shipped work
• Take a project from prototype to production, such as redesigning event processing or data pipelines for greater load and reliability
• Set standards for agentic engineering and develop workflows and patterns adopted by other teams
• Shape bets, deliver committed work and get projects over the line using Shape Up
• Influence technical direction and what teams build without line management authority
• Collaborate with an engineering team of approximately 40 software, platform and data engineers and data scientists
• Balance committed work, improvements and future-cycle exploration according to business needs
• Remain an individual contributor with no line management and continue writing code
• Work with a stack including TypeScript, Node, Python, Kafka, Postgres, Kubernetes on AWS, React and Rust

• Experience at several startups and on systems at real scale, shipping software that people actually used
• A track record of building and running software in production across different companies and codebases, including the unglamorous years after launch
• Experience setting technical direction without authority over the people doing the work
• Experience finding and fixing system bottlenecks under real load using profilers and flame charts
• Comfort across Python, Node, React, Rust and data science
• Understanding of model evaluation metrics including precision, recall and F1 score
• Hands-on engineering experience and intention to remain hands-on
• Already using agentic tools day to day
• Ability to identify worthwhile work and make the case for it
• Sound judgement on security, privacy and client trust in regulated financial software
• Clear communication with engineers, senior stakeholders and clients
• Must live in, have the right to work in, or be willing to relocate to Slovenia; employment contracts are available only in the UK or Slovenia
• Right to work in Slovenia required
• Subject to pre-employment screening, including reference, credit and criminal record checks
• Nice to have: experience with open banking, connections or identity systems

• 5% employer pension contribution from your first day, with a 3% employee contribution
• 25 days’ holiday plus bank holidays, rising to 30 days after two years
• Option to take UK bank holidays at other times, on days of significance to you
• Holiday purchase scheme
• Private medical insurance, including cover for pre-existing conditions, plus dental and optical benefit
• Three months’ Moneyhubber Family Pay when you become a new parent
• Permanent health insurance and life cover well above the industry standard
• Employee assistance programme
• Life event leave
• Professional development support, with a dedicated allowance of time and money
• £750 towards professional memberships
• Remote working support, including access to co-working spaces and help setting up your home office
• High-spec laptop
• Cycle to work scheme
• EV car scheme