Rafael Antonio George Duval

Co-Founder

United States12 yrs 9 mos experience

Most Likely To Switch

Key Highlights

Recovered $180K/month in cloud costs.
Reduced bug backlog by 65% improving customer satisfaction.
Expert in optimizing over-engineered systems.

Stackforce AI infers this person is a SaaS expert with a focus on cloud optimization and software architecture.

Contact

Skills

Core Skills

Software ArchitectureAmazon Web Services (aws)Software DevelopmentRevenue AnalysisBusiness DevelopmentApi DevelopmentRuby On RailsTechnical LeadershipMicroservicesBack-end Web Development

Other Skills

Educational LeadershipTeam LeadershipDistributed Team ManagementElixirRubyTest Driven DevelopmentGoClojureJavaScriptTypeScriptPython (Programming Language)Hot wireFull-Stack DevelopmentSoftware DesignEvent Modeling

About

Most engineering teams don't have a technology problem. They have a visibility problem. $47K databases nobody audited. 847 bugs nobody needed. 14 microservices running a workload that needed one monolith. 47TB in S3 buckets nobody remembered paying for. I find these things. That's the job. After 15 years building and breaking Rails and AWS systems across startups and scale-ups, I've learned that the most expensive problems in engineering aren't the ones that page you at 3am. They're the ones nobody questions anymore. Every week I write about what I find in Snippets of Text — real audits, real numbers, the patterns that show up across every team I've worked with. → Subscribe in my featured section. → Book: "You're Not Netflix" on Amazon → Consulting: activeengine.tech

Experience

12 yrs 9 mos

Total Experience

1 yr 10 mos

Average Tenure

2 yrs 5 mos

Current Experience

Portalsync

Chief Technology Officer

Nov 2025 – Present · 6 mos · United States · Remote

Building automation for facilities coordinators
ServiceChannel/Corrigo/Tango workflow optimization

Active engine llc

Founder & Principal Consultant

Apr 2024 – Present · 2 yrs 1 mo · Remote

I audit engineering teams and find what's costing them money they stopped seeing.
Cloud waste. Over-engineered systems. Dead code. Architecture that fights itself.
Selected results:
$180K/month recovered from premature microservices architecture
52-minute test suite reduced to 11 minutes
847-bug backlog reduced to 247 actionable items, customer complaints dropped 34%
$47K/year database waste identified in single audit

Ruby on RailsSoftware ArchitectureAmazon Web Services (AWS)Revenue Analysis

Snippets press

2 roles

Writer

Dec 2023 – Present · 2 yrs 5 mos

Software engineering, tech companies, business articles every week.

Software DevelopmentBusiness DevelopmentEducational LeadershipTeam LeadershipDistributed Team ManagementElixir+8

Founder

Dec 2023 – Present · 2 yrs 5 mos

digital media studio
Sustainable > Unicorns — Build for freedom, not hype.
Money > Vanity — Revenue is the only real validation.
Problems > Products — Talk first, build second.
Sales = Core Work — No pitch, no product.
Show Your Work — Share wins and failures.

Nuvocargo

Staff Software Engineer

Oct 2022 – Nov 2023 · 1 yr 1 mo · Remote

Software ArchitectureHot wireAPI DevelopmentFull-Stack DevelopmentBack-End Web DevelopmentSoftware Design+4

Gusto

Staff Software Engineer

May 2021 – Oct 2022 · 1 yr 5 mos · Denver, Colorado, United States

Ruby on RailsTechnical LeadershipCommunicationDatabasesReliabilityGit+8

Checkr, inc.

Senior Software Engineer

Nov 2019 – May 2021 · 1 yr 6 mos · Colorado, United States

MicroservicesCommunicationReliabilityDistributed SystemsBusiness ArchitectureBack-End Web Development+1

Github

Senior Software Engineer

Jan 2019 – Oct 2019 · 9 mos · New York City Metropolitan Area · Remote

Apache KafkaRuby on RailsBilling ProcessBilling Systems

Casper

Senior Software Engineer

Feb 2016 – Jun 2018 · 2 yrs 4 mos · New York, New York

CommunicationReliabilityBusiness ArchitectureBack-End Web DevelopmentFulfillment

Namely

3 roles

Senior Software Engineer

Dec 2015 – Feb 2016 · 2 mos

Ruby on RailsMicroservicesCommunicationDatabasesReliabilityGit+8

Software Engineer

Dec 2014 – Feb 2016 · 1 yr 2 mos

Ruby on RailsCommunicationDatabasesReliabilityGitTechnical Architecture+4

Software Engineer

Dec 2012 – Dec 2015 · 3 yrs

Ruby on RailsCommunicationDatabasesReliabilityGitTechnical Architecture+4

Agile ventures

Web Developer

Apr 2013 – Jul 2015 · 2 yrs 3 mos · Dominican Republic

Ruby on RailsGitArchitectureRubyJavaScript

Independent consultant

Web Developer

Nov 2012 – Aug 2015 · 2 yrs 9 mos · Dominican Republic

Ruby on RailsCommunicationDatabasesReliabilityGitTechnical Architecture+4

Education

freeCodeCamp

Full Stack Web Development Certification — Computer Software Engineering

Jan 2016 – Jan 2017

Universidad APEC

BS — Software Engineer

Jan 2001 – Jan 2005

edX

edX

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