Product Builder – Fintech

Mews

. Own the tribe’s engineering agents, skills and context, encoding architectural standards, review logic and quality gates .

Posted 11/12/2026full-timeRemote • Netherlands, Czechia, Ireland, Spain, United KingdomMid-LevelSenior💰 €79,500 - €98,200 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in integrating with Payment Service Providers and building AI-driven solutions for customer support. Possesses strong architectural judgment and a systems mindset to create reusable architecture and tooling while influencing cross-functional teams.

Highest-signal resume keywords

Payment Service Provider IntegrationAI Fluency Level 4Architectural JudgmentCoaching EngineersSystems Mindset

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Integration with Payment Service ProvidersAI Agent DevelopmentArchitectural StandardsSystem-wide RefactoringComplex Problem Solving

Soft Skills

Influencing Without AuthorityCoachingCollaboration

Industry Keywords

B2B SaaSOperational ComplexityFintech

About the role

Key responsibilities & impact

Own the tribe’s engineering agents, skills and context, encoding architectural standards, review logic and quality gates
Build an AI-first responder for customer payment-issue tickets, with rules for escalation to human support
Address complex technical problems including migrations, system-wide refactors and long-lived architecture decisions across PSP integrations
Keep Payment Interfaces integrations coherent as PSPs and regional requirements change
Collaborate with builders who own their work
Coach builders and correct off-standard outcomes at their source
Report to the Director of Product and Engineering
Participate in the Fintech tribe leadership group alongside product builders, staff engineers and product managers

Requirements

What you’ll need

Hands-on experience integrating with payment service providers or payment processors
Deep engineering craft and architectural judgment, including the ability to distinguish what should be codified from one-off solutions
AI Fluency Level 4 or equivalent hands-on experience building agents, skills, evaluations or tooling used by other engineers
Ability to explain where human oversight remains non-negotiable
Systems mindset focused on turning knowledge into reusable architecture and tooling
Ability to influence builders, product managers, principals and senior leaders without direct reports
Nice to have: experience in hospitality, travel or another operationally complex B2B SaaS environment
Nice to have: experience publishing or speaking externally about your work
Nice to have: track record of coaching other engineers and multiplying their effectiveness

Benefits

Comp & perks

Unlimited paid holiday
Participation in the company share program
Paid parental leave: 6 months fully paid for primary caregivers and 2 months for secondary caregivers, available after one year of service
Annual Learning budget of €300, with more for high performers
Monthly "EDGE" time to Explore, Develop, Grow, and Elevate
Work from anywhere policy with flexibility to work abroad for a few weeks each year
Relocation options, available after one year
Flexible, hybrid working options
Home office setup budget
Monthly work-from-home allowance
Claude tokens
Local benefits varying by location, including healthcare, retirement plans, team events, socials and other perks