Opinr
A shared platform for designing, publishing, and operating practical apps and original games with common identity, data, messaging, and cloud foundations.
PythonDjangoAzurePostgreSQLRedis
Ricardo Abreu · Greater Seattle Area
Open to meaningful backend and cloud opportunities
Backend systems that scale.Products that earn trust.
Senior software engineer building secure C# and Azure platforms, distributed backend systems, and thoughtful products for people.
Everything connects.
Systems
Clear boundaries. Connected thinking.
8+Years building software
3Promotions at Microsoft
4Years teaching at Universidad Nacional Autónoma de México
3Working languages
Products and systems
Work selected for the decisions behind it.
Three case studies show how I turn ambiguous problems into clear architectures, reasoned trade-offs, and software people can use.
Ma’alob
A personal safety check-in product, in production on the web, iOS, and Android. Available on the App Store and Google Play, with routine check-ins, trusted contacts, and discreet alerts in one calm experience.
iOSAndroidDjangoSchedulingMessaging
Mexa-Nepantla
An online Unity maze and arena experience built around short rounds, changing environments, and coordination between players.
UnityC#MultiplayerGame systemsWeb
Client website development
Le Bizetro
Website development for Le Bizetro, a Parisian bistro. A bilingual French–English experience brings together the restaurant’s character, menu highlights, reservations, and practical visitor information across desktop and mobile.
Career
Experience forged on real systems.
From graph-visualization algorithms at Tom Sawyer Software to secure services at Microsoft, my work connects deep foundations with dependable delivery.
Experience- Sep 2022 — Present
Microsoft · Purview & Signing
Software Engineer II
- May 2020 — Sep 2022
Microsoft · Security & Compliance
Software Engineer
- Nov 2017 — Jan 2019
Tom Sawyer Software
Product Development Engineer
- 2016 — 2020
Universidad Nacional Autónoma de México · Facultad de Ciencias
Computer Science Teaching Assistant
01 / 04
How I work
- 01
Clarity before complexity
- 02
Security by design
- 03
Decisions that can be explained
- 04
Delivery backed by evidence
Beyond the code
Three places shaped one engineering point of view.
From Balancán to Mexico City and the Greater Seattle Area, my story crosses regions, languages, four years of teaching, and a lasting curiosity for useful technology.
Rigorous engineering, clear communication, and curiosity about the people who will use the system.
Read my story
01 · Balancán
Roots in southern Mexico
02 · Mexico City / Universidad Nacional Autónoma de México
Learning, teaching, and community
03 · Greater Seattle
Cloud systems and global products
Contact
Let’s build something that matters.
If you are building a team or solving a hard backend, cloud, or distributed-systems problem, I would like to understand the context.
Start a conversationadmin@opinr.co