Wendy Linda Hsu

Senior Backend Engineer at AT&T | ex-Atlassian

AT&T

Seattle, WA · PT (UTC-8)

9+ years experience

Northwestern University

English

Messaging unavailable

Overview

Currently at AT&T, where I work on API platforms. Shipped a rewrite that took build times from 17 minutes to under 4. Mentored 11 engineers through their first promotion.

Good reasons to reach out

Questions about API platforms
Second opinions on Python decisions

Please don't message about

Crypto token projects
Requests to fix your code for free
Agency or outsourcing pitches

Travels often; replies within 48 hours

Skills

PostgreSQLRedisDjangoPythonOpenAPIRESTrate limiting

Experience

Senior Backend Engineer
Nov 2025 - Present
AT&T · 11 mo · Full-time · Seattle, WA
- Cut p99 latency on the public API services from 634ms to 133ms.
- Moved 84% of public API traffic off a legacy monolith without a customer-facing incident.
- Reduced cloud spend on public API by 42% in two quarters.
Backend Engineer
Jul 2022 - Nov 2025
Atlassian · 3 yr 4 mo · Full-time · Seattle, WA
- Wrote the Django service that now handles 25 million requests a day.
- Shipped 24 launches on the public API team without a rollback.
Backend Engineer
Aug 2020 - Jul 2022
Capital One · 1 yr 11 mo · Full-time · Seattle, WA
- Shipped a rewrite that took build times from 28 minutes to under 4.
Backend Engineer
Oct 2017 - Aug 2020
Block · 2 yr 10 mo · Full-time · Seattle, WA
- Shipped 17 launches on the public API team without a rollback.

Projects

API platforms benchmark

2022

Reproducible benchmarks comparing OpenAPI and rate limiting on real workloads.

Side project: a habit tracker

2022

Built with Django and PostgreSQL. 4196 people used it last year.

References

No references yet.

Education

Northwestern University
BA, Computer Engineering
2012 - 2016

Details

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