
How to Hire an AI Engineer to Build Your SaaS Product
Guide for hiring an AI engineer for SaaS — OpenAI, RAG, chatbots, document AI, realistic costs, and how to avoid AI wrapper scams.
By Raymond Tse · Full-stack & Web3 engineer · Abuja, Nigeria
AI is on every pitch deck. But most "AI products" are thin wrappers around ChatGPT with no real architecture. If you are hiring an AI engineer for your SaaS, you need someone who understands backends, costs, and reliability — not just prompts.
Common AI features clients want built
- Document Q&A (RAG) over PDFs, docs, or internal knowledge bases.
- AI chat assistants embedded in existing products.
- Content generation (posts, emails, reports) with templates and guardrails.
- Classification, extraction, and summarization pipelines.
- AI-powered search and recommendations.
Questions to ask an AI engineer
- How do you reduce hallucinations in production?
- How do you handle OpenAI rate limits and costs at scale?
- Explain your RAG pipeline — chunking, embeddings, retrieval.
- How do you evaluate output quality before launch?
- Show me a live AI feature you shipped — not a demo video.
Realistic timelines and costs
Simple chatbot with custom knowledge: 2–4 weeks, $3k–$8k. Full RAG system with admin upload, auth, and analytics: 4–8 weeks, $8k–$20k. AI is not magic — data prep and evaluation take as long as the model integration.
AI products I have built
NAIJA GPT (AI football app on Google Play), Boom Tech (lender comparison), PayParrot (fintech + AI), AdhereWell (health adherence with smart workflows), Siwi (voice assistant with Claude). Production AI means monitoring, fallbacks, and cost controls — not just API calls.
Building an AI-powered SaaS?
I integrate OpenAI, LangChain, and Claude into real products with proper architecture. Fixed milestones, Upwork, Fiverr, or direct contract — milestone-based.
Hire Raymond Tse — 3 ways to work together
I'm available on Upwork and Fiverr with platform protection, or via direct contract with milestone payments through raymondtse.online/hire. React, Next.js, Web3, AI — 10+ shipped products.
Upwork
Escrow-protected. Fixed-price or hourly milestones. Best for first-time clients.
Hire on UpworkDirect contract
Milestone payments off-platform. Reach me here for scope, estimates, and long-term work.
Contact for direct contract →Prefer LinkedIn? Message me on LinkedIn
