AI Consulting for fintech teams

Stop AI hallucinations in production with 14-day RAG Hardening Sprint

Within two weeks your team goes from “we think it’s fine” to a monitored, production RAG service with a clearly measured drop in hallucinations (using a KPI we set together after the baseline audit.)

Day What Happens Details
1–3 Baseline & KPI Lock We inspect code, data, and queries. Agree on a percentage reduction or error threshold that fits your reality. No guesswork promises.
4–10 Collaborative Build Pair-programming on AWS or on-prem. Retrieval logic, prompt tuning, evaluation harness.
11–14 Stress-Test & Transfer Load tests, docs, hand-off call. Plus a 90-day Slack hotline for follow-ups.
  • 1–3 days: Baseline & KPI Lock
    We inspect code, data, and queries. Agree on a percentage reduction or error threshold that fits your reality. No guesswork promises.
  • 4–10 days: Collaborative Build
    Pair-programming on AWS or on-prem. Retrieval logic, prompt tuning, evaluation harness.
  • 11–14 days: Stress-Test & Transfer
    Load tests, docs, hand-off call. Plus a 90-day Slack hotline for follow-ups.

Investment: $12,000 per 14-day sprint (6k upfront, 6k on KPI hit)

If we don’t hit the agreed KPI by Day 14, I continue working free for up to four more weeks and you keep 50% of the fee.

When we hit the KPI, you pay the remaining 50% of the fee.

Featured AI projects I have built:

  • Retrieval Augmented Generation for Customer Support

    Implemented the semantic search solution based on a vector database. Performed data analysis, including clustering and topic modeling, to find types of past support requests. Used GenAI to draft a suggested solution to new customer support requests.

  • AI-based reporting solution

    Worked on an AI-based solution for analyzing online reviews and comparing the performance of different branches of the same company.

What people say about me:

  • Martyna Urbanek-Trzeciak (Product Manager - Data Engineering)

    I worked with Bartosz while he was a member of Data Engineering team at Fandom. He is very professional and open to share his knowledge with his teammates and beyond. His approach was always very data-driven and he has great knowledge in Data Engineering area what made him very valuable partner in discussions.

  • Mariusz Kuriata (Senior Manager of Engineering - Head of Ops)

    It was my pleasure to work with Bartosz. Bartosz is a dedicated and experienced Data Engineer who showed a range of skills and readiness to help. I appreciated that I could count on Bartosz to lead sophisticated technical projects. Highly recommend!

  • Workshop participant

    I'm extremely impressed with Bartosz's expertise and experience. We covered all assignments, addressing various details, scenarios, and potential errors. Every question we asked was answered thoroughly. The workshop format of the sessions and small group activities were particularly enjoyable. We had opportunities to apply our new knowledge practically. The trainer remained accessible whenever questions arose. If any uncertainties emerged, the facilitator explained everything with patience."

1-Day RAG Reliability Workshop – $4 000

For teams that prefer to learn before they buy.

Module What your engineers take away
Morning – RAG Foundations Live walkthrough of retrieval pitfalls, demo of a failing vs. fixed pipeline.
Midday – Hands-On Lab Each participant builds a small RAG endpoint with evaluation tests they keep.
Afternoon – Team Code Clinic We review your repo in real time, flag top risk areas, and outline next steps.
Take-Home Pack Slide deck, lab repo, evaluation notebook, and a 30-day Slack Q&A channel.
  • Morning – RAG Foundations: Live walkthrough of retrieval pitfalls, demo of a failing vs. fixed pipeline.
  • Midday – Hands-On Lab: Each participant builds a small RAG endpoint with evaluation tests they keep.
  • Afternoon – Team Code Clinic: We review your repo in real time, flag top risk areas, and outline next steps.
  • Take-Home Pack: Slide deck, lab repo, evaluation notebook, and a 30-day Slack Q&A channel.

Up to 6 participants per workshop.

If the team says they learned nothing they can apply next week, shred the invoice (no charge).

Apply the full $4 000 toward the 14-Day RAG Hardening Sprint if you upgrade within 30 days.