Astrid Gustafsson

Backend Engineer, Philips - PCI DSS · Java · idempotency

Philips

Stockholm, Sweden · CET (UTC+1)

3+ years experience

Sorbonne University

English, Swedish

Learning Collaborating

Messaging unavailable

Overview

I work on payments infrastructure at Philips in Stockholm. Moved 90% of payments platform traffic off a legacy monolith without a customer-facing incident. Marathoner (7 so far).

Good reasons to reach out

Collaborators for my side project
Mentors who have done this before
Speaking or podcast invitations
Thoughtful intros to people in my field
Questions about payments infrastructure

Please don't message about

Crypto token projects
Requests to fix your code for free
Offshore staffing offers

Answers in batches on Fridays

Skills

PCI DSSJavaTypeScriptPostgreSQLGodistributed systemsidempotency

LearningLearning something

closes in 3 months

Learning PCI DSS - want a mentor for monthly reviews

Goal: Get good enough at distributed systems to own it at work.
Where I am now: Working on it daily
Ideal mentor: Someone who has worked in payments infrastructure for a few years
Cadence: Weekly
What I can offer back: Help with frontend work

3 years in so far. Looking for honest feedback, once or twice a month.

Stockholm, Swedenpostgresqlgopci dss

Open

CollaboratingLooking to collaborate

closes in 3 months

Co-writing a newsletter issue about payments infrastructure - looking for a co-author

Project: A newsletter issue about payments infrastructure - looking for a co-author
Skills needed: Marketing, idempotency
Time commitment: Weekends
Outcome: Small product with real users

Will credit everyone who contributes. Async-first.

Stockholm, Swedenpostgresqldistributed systemsidempotency

Open

Experience

Backend Engineer
May 2025 - Present
Philips · 1 yr 5 mo · Full-time · Stockholm, Sweden
- Cut p99 latency on the payments platform services from 589ms to 101ms.
- Moved 75% of payments platform traffic off a legacy monolith without a customer-facing incident.
Backend Engineer
Oct 2023 - May 2025
Wise · 1 yr 7 mo · Full-time · Stockholm, Sweden
- Took payment success rates from 92.2% to 97.9%.

References

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Education

Sorbonne University
Licence, Computer Engineering
2019 - 2022

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