Engineering Manager - Trust Detection (ML)

Location: UK-based, London, with partially remote hybrid working

Company

hirify.global is a peer-to-peer circular fashion marketplace for buying, selling, and discovering secondhand fashion, with more than 56 million registered users and over 500 employees.

What you will do

• Manage, coach, and develop Backend Engineers through feedback, career growth, performance management, hiring, and onboarding.
• Partner with the ML Manager and Product Manager to set direction, priorities, roadmap, and shared goals.
• Own the technical direction and delivery of the trust detection platform, working with staff engineers and partner teams.
• Move models from experiments into reliable production systems with real-time inference, monitoring, safe rollouts, testing, observability, cost control, and operational excellence.
• Build shared risk-scoring services used across listings, search, chat, account security, and other teams.
• Collaborate with Trust & Safety Operations, Policy, Legal, Data, Compliance, Security, and product partners to balance safety, fairness, compliance, and delivery speed.

Requirements

• Experience managing and developing engineers, ideally including senior engineers.
• Strong software engineering background with confidence engaging in architecture and technical trade-offs.
• Experience leading teams that run production systems, with a focus on reliability and quality.
• Experience working with, or a genuine appetite to learn how to lead, ML or data-heavy teams; model-building experience is not required.
• Clear ownership of team health and delivery, with the ability to create momentum in ambiguous, fast-changing problem spaces.
• Collaborative shared-leadership style, comfort with healthy disagreement, and ability to make decisions collectively.
• Confidence constructively challenging engineers, ML, product partners, and stakeholders.
• Motivation to protect people and build trusted online communities.

Nice to have

• Production ML experience, including MLOps, model serving, real-time inference, feature pipelines, retraining, or drift monitoring.
• Experience in trust and safety, fraud, abuse, spam, content moderation, or marketplace integrity.
• Experience building shared services or APIs used by other teams.
• Experience with experimentation, shadow testing, golden-set evaluation, or other methods of measuring real-world model impact.
• Cross-functional delivery with Operations, Policy, Legal, Compliance, or Security partners.

Culture & Benefits

• Partially remote hybrid working through hirify.global's MyMode model, with office-based, flex, and remote options depending on the role.
• Healthcare access, counselling and coaching, employee assistance support, and mental health first aid.
• 25 days of annual leave, up to 2 additional paid volunteering days, and a paid four-week sabbatical after five years of consecutive service.
• Paid parental leave, IVF leave, shared parental leave, and emergency parent/carer leave.
• Learning budget, development chats, performance reviews, and company-wide training.
• Life insurance worth 3x salary, pension matching up to 6%, dog-friendly offices, and other hirify.global extras.