Mahmoud Rizk

Director of Engineering at Bolt · Cloud infrastructure · Go, Kubernetes

Bolt

Paris, France · CET (UTC+1)

11+ years experience

École Polytechnique

English, French, Hindi

Advising

Messaging unavailable

Overview

Based in Paris. I lead cloud infrastructure at Bolt. Shipped 20 launches on the infrastructure team without a rollback. Before that: Klarna and N26. Most at home with incident response and Go. Former debater; now I argue with spreadsheets.

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Advice on cloud infrastructure
Second opinions on AWS decisions

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Requests to fix your code for free
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Crypto token projects

Travels often; replies within 48 hours

Skills

AWSKubernetesincident responseGoJava

AdvisingOpen to advising

closes in 3 months

Office hours for teams scaling past 50 engineers: cloud infrastructure and Java

Topics: cloud infrastructure, AWS, Kubernetes
Format: Formal advisor role
Terms: Free for early founders
Capacity: A few async reviews a month
Best for: Engineers moving into leadership

19 years of cloud infrastructure. Small equity or paid hours - flexible.

Paris, Francejavaawskubernetes

Open

Experience

Director of Engineering
Jul 2025 - Present
Bolt · 1 yr 3 mo · Full-time · Paris, France
- Grew the infrastructure team from 5 to 12 engineers.
- Shipped a rewrite that took build times from 41 minutes to under 6.
Senior Engineering Manager
May 2023 - Jul 2025
Klarna · 2 yr 2 mo · Full-time · Paris, France
- Moved 95% of infrastructure traffic off a legacy monolith without a customer-facing incident.
- Led the migration of 60 services to Go.
Senior Site Reliability Engineer
Feb 2021 - Mar 2023
N26 · 2 yr 1 mo · Full-time · Paris, France
- Shipped a rewrite that took build times from 17 minutes to under 6.
- Built the experimentation framework 22 product teams use to ship changes safely.
Staff Site Reliability Engineer
Jun 2017 - Feb 2021
IKEA · 3 yr 8 mo · Full-time · Paris, France
- Reduced cloud spend on infrastructure by 33% in two quarters.
- Shipped a rewrite that took build times from 45 minutes to under 6.
Senior Engineering Manager
Nov 2015 - Jun 2017
Nokia · 1 yr 7 mo · Full-time · Paris, France
- Brought on-call pages for infrastructure down from 18 a week to 4.
- Cut p99 latency on the infrastructure services from 839ms to 172ms.

References

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Education

École Polytechnique
Ingénieur, Mathematics
2002 - 2006

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