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Cristian Diaz Software & Operations
Cristian Diaz / Senior Software Engineer & Operations Leader

Engineering systems. Leading operations.

I build high-density tools for operations teams—QA workbenches, reporting engines, and resilient AI-assisted workflows—and lead the organizations that run them.

14+ Years Tech Ops
8+ Global Hubs
LSS Lean Six Sigma
Cristian Giovanny Diaz Villafañe

Cristian Diaz

Europe & Global Remote

Case Studies

Selected Engineering Work

Production-grade tools and engines engineered for high-density operations teams.

Data Stream Reactive Store Sub-second Calc Vector Report 100% Client Privacy < 100ms Latency 0 Server Cloud Cost Architecture illustration
01 / Frontend for Operations

Enterprise Operations & KPI Scorecard Engine

Operations managers and team leaders were wasting hours manually reconciling agent KPIs (SLA, ART, CSAT, AHT, QA) across fragmented spreadsheets and disparate dashboards, leading to delayed coaching feedback and frequent data entry discrepancies.

JavaScript (ES6+) Chart.js TailwindCSS
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Optimistic Local State -40% Audit Time Architecture illustration
02 / Frontend for Operations

Unified QA & Audit Workbench for Multi-market Operations

Quality auditors and operational supervisors had to switch between multiple tabs (ticket views, moderation queues, internal guidelines, and scorecard forms), causing severe mental fatigue and discrepancies in evaluation criteria across distributed European and LATAM hubs.

TypeScript TailwindCSS Canvas API
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Operator Human Gate Sign-off Rule Agent LLM Audit Feedback Architecture illustration
03 / AI & Operations Automation

Intelligent Operations & Cross-Utilization Orchestrator

Rigid, siloed workforce assignments across 12 disparate client contracts led to chronic under-utilization during off-peak hours on some accounts while other accounts suffered severe SLA breaches during sudden traffic spikes.

Python TypeScript FastAPI
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Approach

Operating Philosophy & Method

Over 14 years across multinational technical operations, including a decade in naval service, taught me that software running in mission-critical environments must be fast, unpretentious, and respectful of the human operator. I build interfaces where every millisecond and pixel directly supports cognitive clarity.

01

Engineering for Operators

Interfaces designed for dense, repetitive workflows: sub-second updates, zero unnecessary hydration, keyboard navigation, and zero cognitive clutter.

02

Disciplined Operations

Grounding capacity in worked hours, rigorous incident response, and Lean Six Sigma methodology. Protecting P&L targets without burning out frontline teams.

03

Responsible Automation

Strict boundaries for AI assistance in trust, safety, and moderation. Transparent deterministic audits where the human operator retains final decision authority.

Get In Touch

Let’s build reliable systems together

Open to strategic advisory, technology leadership, and engineering collaboration for operations teams.

Based in Europe • Available for Global Remote Collaboration