Digital products
that talk to your business.

Yes. I serve clients remotely across Brazil and in person along the SP–Vale do Paraíba corridor. For international projects, I have already delivered work for clients in seven countries: Brazil, United States, Australia, Spain, Argentina, Thailand, and Portugal. I work in Portuguese, Spanish, and English, on BRT (UTC−3).

Custom software projects start at R$ 18,000 (lean scope, 4–6 weeks) and scale with complexity and timeline. Every proposal includes a 2-week technical discovery with scope, risks, and architecture documented before any code is written. Workflow automations start at R$ 6,500.

Default stack: TypeScript, Next.js, React, Node.js, Postgres (Supabase or Neon), Vercel for hosting, GitHub for version control. Source code is delivered to your GitHub repository from the first commit, with commercial license held by you. Minimal vendor lock-in.

I build custom agents on top of OpenAI, Google Gemini, and Anthropic. They typically cover (1) automated customer service with human handoff, (2) document data extraction (invoices, contracts, e-invoices), (3) internal copilots for operations teams, and (4) multi-step workflows with tool use and RAG. Every project includes guardrails (output validation, token limits, per-provider fallbacks) and observability (prompt/response logs, cost per request, latency per model).

I work with Meta's public and official APIs: Facebook Lead Ads API (webhook delivering leads to CRM within 2 seconds), WhatsApp Business Cloud API (customer service, broadcast, flows), Instagram Graph API (DMs, comments, scheduling), and Conversions API + Pixel (server-side tracking with deduplication). Each integration is delivered as a custom build — not an off-the-shelf product.

I operate as a technical integrator on top of Meta's public APIs. I am undergoing review as a Meta Tech Provider. Until the review is complete, I describe the relationship as "built on Meta's official APIs" — I use public and documented APIs, but the partnership badge is only mentioned after formal Meta approval.

Yes. I operate under Brazilian Law 13,709/2018 (LGPD). Lead data passes through the infrastructure only for the time required to deliver it to your CRM (maximum 7-day buffer). I retain audit logs for 12 months for incident investigation, with personal data hashed. Deletion requests are processed within 15 business days via helder@helderandre.com or the /data-deletion page.

In four steps: (1) you submit the contact form; (2) we schedule a 30-minute call to understand the problem; (3) I issue a proposal with scope, timeline, and a fixed price for the discovery; (4) after the discovery (2 weeks), you receive a technical document with architecture, risks, and an implementation proposal — only then do you decide to proceed with the build.

I offer monthly support and evolution contracts at R$ 2,400/month (up to 8h package) or R$ 4,800/month (up to 20h). Includes monitoring, bug fixes, dependency updates, and small evolutions. For clients with internal dev teams, I deliver fully documented code and ownership transfers 100% to the client.