iwoca is looking for a Principal Engineer to lead the technical evolution of the Repeats team's core systems. You will balance architectural design, people management, and hands-on coding to build scalable, adaptive systems for customer routing and offer generation.

What You'll Do

Own the technical roadmap, re-architecting code to meet dynamic challenges.
Lead the evolution of system architecture to optimize customer journeys and enhance decision-making.
Collaborate with Principal Engineers across teams to design and deliver a coherent system.
Be an active, hands-on contributor to the codebase, leading by example in quality, testing, and performance.
Drive technical strategy and execution for projects, translating product goals into production-ready code.
Proactively identify and resolve technical debt and production issues.
Manage three engineers, responsible for their performance, coaching, and career development.
Define and champion engineering best practices and standards within the team and wider group.

What We're Looking For

Expertise in systems architecture, including designing and managing complex domain models.
Advanced proficiency in software development using an object-oriented language.
Experience delivering and operating live customer-facing systems in a production environment.
Experience leading a team of engineers, including line management.
Product-focused mindset, with experience working with stakeholders to turn business problems into technical solutions.
Pragmatism in making high-stakes technical decisions, weighing trade-offs.
Clear, concise written and verbal communication.

Nice to Have

Experience with Python, Django, or PostgreSQL.
Familiarity with data analytics or machine learning processes.
Experience with complex data architectures, including event-sourced data models.
Numerical or technical background, ideally with a degree in maths, physics, computer science, engineering, or a related field.
Front-end development experience.

Technical Stack

Python
Django
PostgreSQL

Team & Environment

You will manage three engineers and be part of the Repeats team, which includes engineering, product, data, and design.

Benefits & Compensation

Compensation: £100,000 - £160,000
Flexible working hours.
Medical insurance from Vitality, including discounted gym membership and a private GP service.
25 days’ holiday, an extra day off for birthday, option to buy/sell 5 days, unlimited unpaid leave, one-month fully paid sabbatical after 4 years.
Instant access to emotional and mental health support with Spill.
Pension and share options.
Generous parental leave and a nursery tax benefit scheme.
Paid volunteering day.
Cycle-to-work scheme and electric car scheme.
Two company retreats a year.
Learning and development budget for everyone.
Company-wide talks with internal and external speakers.
Access to learning platforms like Treehouse.