Julio Cabrera del Castillo

Positioning

Built to deliver. Now building the machines that do.

delivered: $4B+
sectors: 6
decades: 2
countries: 4

Shipped.

Aqueducts, treatment plants, airports, highways, tunnels, hospitals, power plants. Multinational, multicultural teams across the United States, Canada, Mexico, and the Dominican Republic.

Delivering.

Enterprise software and AI platforms. Every program run under the same disciplines: risk governance, vendor accountability, data governance, software development lifecycle, change management.

On the horizon.

The next generation of governed, multi-agent AI systems — social impact focus, shipped end-to-end, scaling the same discipline that ran billion-dollar programs.

2007 – 2026

The record, newest first.

2026 –

Purple Squirrel HQ

AI Product Manager & Agent Systems Architect · Remote, Canada

Built and shipped a live AI platform solo. The same discipline that runs $283M programs, now building the product itself.

End-to-end ownership: market research, a 37-milestone roadmap, live production. Next.js, AWS Amplify Gen 2, DynamoDB, Cognito, S3, and Bedrock running Claude.
A seven-agent development system across four model families, 320+ logged deployments under a 100+ rule governance framework.
Full case study below.

2022 –

Saskatchewan Government Insurance

Senior IT Program/Project Manager · Regina, SK

Program leadership on a four-year, $283M enterprise transformation. The operating system for everything that came after.

Guidewire, Duck Creek, and PeopleSoft delivered for 2,500+ users; legacy-coexistence risk cut 30% through an active-policy migration strategy.
$20M in vendor contracts governed from initiation to warranty, including a documented Deloitte-to-internal AWS handover.
Executive risk reporting overhauled: leadership alignment meetings down 62%, from two hours to 45 minutes.
Support scaled from 450 to 4,000+ tickets a month post-launch. Top-5% performance ranking in the enterprise IT division. CIP earned in-role.

2020 – 24

CUASAR.IO

IT Technical Program Manager, Web 3.0 venture · Remote, contract

A four-year bet on digital assets, from blockchain R&D to Y Combinator's Startup School.

Strategic R&D for a Web 3.0 IP e-commerce venture: media licensing built on blockchain and Ethereum smart-contract research.
$50K in seed funding earned. Accepted into Y Combinator's Startup School and Conexus Start, Cohort 7.

2020 – 21

INVI / MIVHED (Ministry of Housing)

Project Manager, PMO, national healthcare infrastructure · Dominican Republic

Built the PMO that helped a country reopen: emergency hospital upgrades at lockdown speed.

$250M infrastructure portfolio. Project controls, biomedical equipment tracking, and KPI-driven governance stood up from scratch.
Five major hospital projects; executive reporting lag cut by 10 days.
Deployed and completed the strategy that returned people from lockdown to work.

2019 – 20

Vanderhorst-Ruiz, HERMES

Project Director · Los Cabos, Mexico

Brought in to save a distressed luxury development. Brought it back.

Returned a challenged luxury apartment project to plan, through to successful re-integration.
Renegotiated vendor contracts and established KPI-driven quality controls aligned with international standards.

2018 – 19

Nautica Boat Rental

IT Project Manager · Dominican Republic

Took a manual boat-rental operation digital.

End-to-end implementation of a digital booking platform. Automation eliminated manual booking tasks and raised operational productivity 20%.

2018

NWYK

Senior IT Project Manager · Self-employed, Dominican Republic

First product build: a social networking website, ideation to prototype.

Social networking website led through Agile/Scrum from ideation to prototype, across a $200K budget.
Wireframing, UI/UX, user testing, and go-to-market strategy. Documentation discipline drove a 10% budget cost reduction.

2017

Vanderhorst & Ruiz, Playa Grande

Project Director, luxury villas · Dominican Republic

Luxury delivery under tight timelines: design teams in NYC, execution on the north coast.

Directed design staff, sub-consultants, QA/QC, budgets, and scheduling across multiple high-end builds.
Materials and mock-up approvals kept construction on pace and secured approval of 30% higher change orders.

2015 – 17

Grupo Puntacana

Project Manager, then Airport Project & Infrastructure Maintenance Manager · Punta Cana International Airport, Dominican Republic

Projects and infrastructure at one of the Caribbean's busiest airports. A 24/7 operation where nothing gets to stop.

Airside and landside delivery balancing safety, service continuity, and ICAO, FAA, and IDAC compliance.
Worked with US Customs & Border Protection on development of a pre-clearance facility.
Contributed to raising the airport's ASQ rating to #1 in the region for its segment.

2015

Elemental Developments (CONELDOM)

Senior Project Manager, housing development · Self-employed, Dominican Republic

Full-lifecycle ownership of a housing development, licensing to closure.

Every aspect managed: licensing, engineering, architecture, planning, controls, closure, payroll, and investor communication.
Project sold to a contractor at a 50% profit margin.

2007 – 14

The Odebrecht Era · 2007 – 2014

Seven years, four months. Five projects. Mega-projects with budgets up to $3B, teams up to 300, personally administered budgets up to $60M, across the USA and the Dominican Republic.

2014

Odebrecht

Project Engineer, SH-99 Houston Grand Parkway · Greater Houston, TX

Texas's largest single highway contract at award: $1.04B, 38 miles, design-build.

Paving operations, cost control, and material logistics on a mega-scale linear project connecting US 290 to US 59/I-69.
Nationally recognized for public-private partnership innovation. Opened to traffic in early 2016.

2012 – 14

Odebrecht

Project Engineer, Fort Lauderdale-Hollywood International Airport, WP-302 · Fort Lauderdale, FL

Raising a runway 60 feet over a live highway, a railway, and a perimeter road, while the airport kept flying.

$234M contract: site preparation and NAVAIDS infrastructure for the 9R-27L expansion, under FAA and ICAO standards.
Logistics managed on roughly 11.5 million tons of imported embankment material. The runway opened September 2014.

2012

Odebrecht

Project Manager, Punta Catalina Thermoelectric Power Plant, bid stage · Santo Domingo, DR

The largest energy infrastructure bid in Dominican history. Won.

$900M bid-stage role on the 330MW plant under a Build-Own-Operate model with a 15-year power purchase agreement.
Bid packages and addenda, advanced logistics planning, and fuel-supply due diligence contributing to the coal supplier selection.
The plant was later completed as a 752MW facility.

2010 – 11

Odebrecht

Project Manager, Corredor Duarte Joint Venture · Santo Domingo, DR

Six overpasses and a tunnel through the heart of a capital city. 120 people under direction.

On-site execution lead for the US$286.8M urban mobility initiative attacking Santo Domingo's chronic congestion.
A multidisciplinary team of roughly 120: construction, contractual commitments, cost, quality, schedule, and contractor coordination.

2007 – 10

Odebrecht

Project Engineer, then Project Manager, Acueducto de Samaná · Samaná, DR

Where it started: a $233.6M water system, 250 people across multiple sites, first job out of engineering school.

Promoted from Project Engineer to Project Manager within four months.
Roughly 250 personnel across multiple job sites, with budgetary and hiring authority. Site safety including heights and confined-space work.
The Samaná Community Center delivered alongside the aqueduct scope.

Case Study · 2026

Purple Squirrel

A live AI platform, shipped end to end, solo.

In 2026, Purple Squirrel shipped: a live AI job-matching platform, designed, built, and operated by one person, under the same governance discipline that runs $283M programs.

logged deployments: 320+
first-pass audit rate: ~80%
rollbacks across 4 live-beta features: 0
per month, all-in operation: ~$1K

The build

Market research to a 37-milestone roadmap to live production, with the full SDLC owned personally. Next.js, AWS Amplify Gen 2, DynamoDB, Cognito, S3, and Bedrock running Claude.

The system

A seven-agent development system across four model families, with enforced maker, reviewer, and auditor separation. A 100+ rule governance framework born from logged incidents. Adversarial review and a post-ship audit pipeline: roughly 80% first-pass across 100+ audits, with a 150-defect log and repeat-defect escalation.

The product

Primary research identified ghost-job listings at roughly 27% of the market. Two-signal detection shipped ahead of pending legislation.

The operation

Four features launched to live beta with zero rollbacks through production-evidence gates. A production AI pipeline cutover running 96 cycles a day, with zero downtime through a 24-hour observation gate. AI serving cost engineered at 10 to 15% of subscription price, an 80 to 90% gross margin at scale. 28 data providers evaluated; three integrated under written licensing clearances.

Credentials

On the record.

B.Eng., MBA (×2), PMP, CIP

Education

MBA
Universitat de Barcelona, Entrepreneurial track
Executive MBA
Barna Management School
B.Sc. Civil Engineering, Cum Laude
INTEC
Business Management Post-Graduate Certificate, Great Distinction
Saskatchewan Polytechnic, 2022

Certifications

Project Management Professional (PMP)
PMI, active 2015–2030
Chartered Insurance Professional (CIP)
Insurance Institute of Canada, 2025
Google Project Management Certificate
2022
OSHA 30-Hour Training
Stormwater Management Inspector
Florida DEP, 2013
WES Verified International Academic Qualifications
2020

226 peer endorsements · LinkedIn-verified employment (SGI)