Ruby Fleming

S

Engineering Manager at Saffron Finance · Real-time systems

Saffron Finance
Austin, TX · CT (UTC-6)
7+ years experience
Penn State
English
Open to workHiring
Messaging unavailable

Overview

I've spent 7 years on real-time systems - first at Visa, now at Saffron Finance. Cut p99 latency on the real-time services from 484ms to 78ms. Moved 80% of real-time traffic off a legacy monolith without a customer-facing incident. Before that: Nike and Visa. I write a small newsletter about real-time systems.

Good reasons to reach out
  • Candidates for the role I'm hiring for
  • Roles in real-time systems
  • Working sessions on WebSockets
  • Speaking or podcast invitations
  • Second opinions on Gradle decisions
Please don't message about
  • Offshore staffing offers
  • Requests to fix your code for free
  • Generic networking requests

Prefers short, specific messages

Skills
GradleRedislow-latency systemsGoWebSockets
Open to workLooking for a role
closes in 3 months

Senior Software Engineer roles in climate tech - Austin or remote

Target roles
Senior Software Engineer
Level
Senior
Industries
AI infrastructure, Climate tech
Work mode
Remote
Available
90 days notice
Work authorization
Authorized to work in the TX
What I'm looking for
Scope to lead real-time systems work, with a manager who gives direct feedback.
Not interested in
Night shifts

7 years in real-time systems. Strongest at low-latency systems and Redis. Serving notice now.

Austin, TX · remote OKlow-latency systemsgradlewebsockets
Open
HiringHiring for a role
closes in 3 months

Building out real-time at Saffron Finance: security engineers wanted in Austin

Role
Security engineer
Level
Senior
Type
Full-time
Work mode
Hybrid
Compensation
$121k-$181k
Team
Real-time, 12 people
Start
Within two months
Must have
Has closed the books at a growing company Strong modelling Clear written communication
Process
3 conversations, no take-home

Comp $156k-$216k. Three interviews over a week. Message me with one thing you shipped that you're proud of.

Austin, TX · remote OKgradleredislow-latency systems
Open

Experience

  1. Engineering Manager
    Jun 2025 - Present
    Saffron Finance · 1 yr 4 mo · Full-time · Austin, TX
    • Mentored 13 engineers through their first promotion.
    • Moved 83% of real-time traffic off a legacy monolith without a customer-facing incident.
  2. Senior Software Engineer
    Oct 2021 - Jun 2025
    Nike · 3 yr 8 mo · Contract · Austin, TX
    • Cut p99 latency on the real-time services from 643ms to 46ms.
    • Moved 78% of real-time traffic off a legacy monolith without a customer-facing incident.
  3. Software Engineer
    Nov 2019 - Oct 2021
    Visa · 1 yr 11 mo · Full-time · Austin, TX
    • Cut p99 latency on the real-time services from 548ms to 132ms.

References

No references yet.

Education

  1. Penn State
    BS, Computer Science
    2015 - 2019

Details

Compensation expectations
What they are targeting for their next role.
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