Selected engineering

Selected engineering experience.

Examples from João’s engineering experience, including work before Gald Code. These summaries describe problems, contributions and intended functionality—not verified client outcomes or a list of Gald Code deliveries.

Case studies

01

3D Reconstruction Platform

  • Computer Vision
  • LiDAR
  • Photogrammetry
  • Machine Learning

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Physical environments needed to become measurable digital assets, captured with ordinary devices rather than specialised rigs.
System
A capture-to-reconstruction pipeline turning images and depth data into usable 3D representations.
Engineering approach
Photogrammetry combined with LiDAR depth and learned refinement, with processing split into asynchronous stages so heavy work never blocked the client application.
Technical challenge
Inconsistent capture conditions: lighting, motion, incomplete coverage and noisy depth all degrade reconstruction quality, so the pipeline had to fail gracefully and guide better capture.
João’s contribution
End-to-end engineering of the processing pipeline and its integration with the product.
Intended functionality
Real-world spaces and objects become digital references teams can inspect, measure and reuse.
02

AI Aesthetic Simulation

  • Computer Vision
  • Machine Learning
  • Facial Analysis

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Professionals needed to show a plausible visual outcome of a localized procedure before it happened.
System
A vision system that identifies facial regions and sub-regions and manipulates them in a controlled, reversible way.
Engineering approach
Region detection and segmentation feeding parametric manipulation, so each change stays bounded to an anatomically meaningful area instead of a generic filter.
Technical challenge
Believability: the simulation must respect identity and anatomy, and small artefacts destroy trust instantly.
João’s contribution
Computer vision pipeline and simulation logic.
Intended functionality
A conversation between professional and client based on something visual rather than verbal description.
03

Operational Messaging Agent

  • AI Agents
  • Tool Calling
  • Payments
  • Automation

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Routine operational requests arrived through messaging and required manual handling.
System
A conversational agent that understands intent and executes real actions inside the company's systems.
Engineering approach
Tool calling connecting conversations to scheduling, confirmations, payment links and external API actions.
Technical challenge
Reliability under ambiguity — an agent that acts must know when it is not confident enough to act.
João’s contribution
Agent architecture, tool layer and integrations.
Intended functionality
Operational requests are resolved conversationally, with humans handling exceptions instead of routine.
04

AI Negotiation System

  • AI Agents
  • Negotiation
  • Decision Systems

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Negotiation decisions were made intuitively, without a consistent way to evaluate alternatives and concessions.
System
A specialized AI system grounded in established negotiation frameworks such as BATNA.
Engineering approach
Domain reasoning encoded as explicit structure — alternatives, reservation values, concession paths — with the model reasoning inside that frame rather than free-forming advice.
Technical challenge
Keeping the system grounded: generic language models drift toward agreeable answers, which is the opposite of useful negotiation support.
João’s contribution
System design, reasoning structure and evaluation.
Intended functionality
Negotiation preparation becomes analytical and repeatable instead of improvised.
05

Document Intelligence System

  • OCR
  • Document AI
  • Multimodal

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Critical business information was locked inside documents, handwriting and specialized records.
System
An extraction and understanding pipeline that turns documents into structured, verifiable data.
Engineering approach
OCR combined with multimodal understanding and schema-constrained extraction, plus confidence scoring so low-certainty fields route to human review.
Technical challenge
Handwriting, scans and non-standard layouts break naive extraction; the system needed to degrade into review rather than into wrong data.
João’s contribution
Pipeline architecture, extraction logic and review workflow.
Intended functionality
Documents stop being an archive and become an operational data source.
06

Interactive Streaming Platform

  • Real-time
  • Streaming
  • WebSockets
  • Scale

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Live audiences needed to participate in a shared stream with responsive interactions.
System
A real-time platform with live interaction, in-stream games and continuously updated rankings.
Engineering approach
Backend and real-time interaction systems connecting streaming, games and live rankings.
Technical challenge
Concurrency peaks are instant, not gradual — the system had to hold its behaviour when everyone acts at the same second.
João’s contribution
Real-time backend and interaction systems.
Intended functionality
Live audiences participate instead of only watching.
07

Retail Intelligence Platform

  • Geolocation
  • Crowdsourcing
  • Mobile
  • Data

Founder experience · Deployment status and publication scope to be confirmed for this example.

Problem
Price and availability information changes locally and constantly, and no single source keeps up with it.
System
A crowdsourced, location-aware platform that collects, validates and surfaces retail data.
Engineering approach
Mobile capture feeding a geospatial data model, with contribution scoring and validation rules to keep crowdsourced input trustworthy.
Technical challenge
Data quality is the product: without validation, crowdsourced information becomes noise very quickly.
João’s contribution
Backend, data model, geolocation and mobile integration.
Intended functionality
Local commercial reality becomes visible and queryable in near real time.

No client identities, logos, metrics or proprietary details are published. Specifics can be discussed directly, within the limits of each agreement.

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