Software Engineering
A senior squad,forged in production
Five engineers led by me, with the quality bar of someone building for Nike and fintech: clean architecture, tests, observability, and an AI-first culture that multiplies delivery.
What we build
Products from scratch
From discovery to deploy: web, mobile and backend. SaaS, marketplaces and platforms, like Topo Contábil, which went from zero to five-figure MRR in 6 months.
Payment systems and critical integrations
Instant payments, cards, anti-fraud, settlement, signed webhooks. The specialty of the team transacting US$ 55M+ in production.
AI systems and agents
Agents in production, orchestration, MCP, RAG and automation, with cost-per-operation metrics. We don't ship demos: we ship systems that operate.
Project rescue
That system nobody dares to touch anymore. Audit, stabilization and evolution, with documentation and tests so your team can take over.
Our standard, non-negotiable
Clean architecture with lint-enforced boundaries, the code doesn't rot
Tests and E2E from day one, deploy without fear
Observability built in: logs, metrics, alerts
AI-first workflow: we deliver faster without cutting quality
SPADES: how we deliver
Our proprietary end-to-end method. Six stages, from the first conversation to metrics in production, so you always know exactly where the project stands.
- S01
Study: Understand
We listen, map the context and align on what actually needs solving, before talking technology.
- P02
Plan: Plan
We define scope, timelines and what success looks like. You know what you'll get and when.
- A03
Assemble: Build
We develop in short cycles with constant visibility into progress.
- D04
Demonstrate: Show
You see the real flow working in your environment before go-live.
- E05
Endorse: Validate
Quality and security review before release. Nothing ships half-done.
- S06
Ship & Sense: Deliver and measure
Production deploy and tracking the metrics that matter, closing the improvement loop.
The squad
The team behind the code
Senior engineers who have built with me before, from Nike to fintech to products from scratch. A lean team, AI-first culture, no management layers between you and the people writing the code.
João Holz
Software Engineer · Full-stack
Full-stack engineer with experience in product, backend architecture and legacy-system integration. Delivers from discovery to production.
TypeScriptNode.js
Eden Kiefer Junior
Software Engineer · Backend
Focused on back-end and corporate integrations. Works on complex data flows and automation.
Node.jsIntegrations
Carollyne Assunção
Front-end Mobile Engineer
Specialist in mobile interfaces. React Native and user experience in production apps.
React NativeMobile
Need a squad that ships?
Tell me about the project in a 30-minute call. Honest scope, honest timeline, honest price.