White-Label AI & Backend Engineering for Agencies

AI & API Integration Engineer

I help agencies and SaaS teams ship complex AI and API integrations without hiring another senior backend engineer.

Sound familiar?

What I handle

How it works

  1. 1

    Send requirements

    Whatever you have — a client brief, a Slack thread, a half-built prototype.

  2. 2

    Technical assessment

    A straight, fast read on feasibility and approach — usually within 1-2 business days, no charge.

  3. 3

    Fixed-scope pilot

    A clearly scoped, fixed-price engagement so both sides know exactly what's being delivered.

  4. 4

    Delivery

    Tested, documented, deployed — with a clean handoff, not a black box.

  5. 5

    Optional ongoing partnership

    If it's a fit on both sides, a bounded monthly retainer for recurring technical capacity.

Proof, not promises

Two live, interactive demos — authenticated tool-calling AI agents over data, structured output validation, retries/ timeouts, and the kind of production hardening most AI prototypes skip. Both run on synthetic/mock data — no real customer or company data is involved.

Background

Have a project like this?

Send me the requirements and I'll give you a straight read on approach and scope — no charge for that first look.

Email javiersivack@gmail.com