First Product Reliability Engineer — AI-Driven Stability

Haddock; Barcelona; Hybrid; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Competitive salary (€50–70k gross/year

Hybrid work with 2 days in office

Office in Barcelona (Poblenou)

AI tooling access

Urban Sports Club membership

Salary-related benefits via Playflow

Job summary

haddock is seeking the first Product Reliability Engineer to build and own the reliability platform. You will lead two engineers and a rotating product engineer, spending about 75% of time on hands-on software engineering and building AI-driven tooling.

You will shape triage policy, severity models, and the metrics that document reliability. The role is based in Barcelona with hybrid work and opportunities to impact real restaurants through reliable software.

Qualifications

• 5+ years of engineering experience in SaaS startups or scale-ups.
• Owned a bug backlog for a squad or engineering team.
• Debug code you didn't write quickly and efficiently.
• Think in systems and processes, not only tickets.
• Mentored or led at least 2 engineers; management not required.
• AI-native mindset; daily AI usage and good judgement.
• Fluent in Spanish; comfortable with English in work.
• Experience in SaaS customer-facing environments is a plus.

Responsibilities

• Own the technical escalation layer: triage, reproduce, diagnose, resolve.
• Reduce inflow by addressing root causes and broad classes of tickets.
• Build internal tooling for data correctness and bulk fixes.
• Own metrics, weekly reports, and accountability for quality.
• Lead two engineers plus a rotating product engineer and oversee onboarding.
• Manage AI agents to triage and fix tickets and automate processes.
• Collaborate with customers and ensure reliability improvements across the product.
• Instrument inflow/resolution metrics to prove product improvement.

Skills

Engineering experience

Bug backlog ownership

AI-native work style

Mentored engineers

Spanish fluent

Tools

AI tooling

Job description

haddock is seeking the first Product Reliability Engineer to build and own the reliability platform. You will lead two engineers and a rotating product engineer, spending about 75% of time on hands-on software engineering and building AI-driven tooling.

You will shape triage policy, severity models, and the metrics that document reliability. The role is based in Barcelona with hybrid work and opportunities to impact real restaurants through reliable software.