AI implementationTomasz Stępnik · a developer, not a slide deck

Tomasz Stępnik

A developer, not a slide deck. I connect systems for a living and work with AI as a tool, not a buzzword. For smaller companies I implement AI in one specific place and keep it working.

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In brief

I have been building on Salesforce since 2020. Today I am the sole owner of the Salesforce org at a Swedish software company: development, permissions, integrations, production releases. Before that, two years in a Vaillant Group team (loyalty programme, large Apex API, installer portal) and three years at Britenet for clients in education, insurance and finance. Salesforce certifications: Platform Developer I, Administrator, Platform App Builder, Sales Cloud Consultant.

I work with AI every day: Claude Code as a developer, Claude and OpenAI in production automations, Agentforce and Prompt Builder in Salesforce. I built my own MCP server with around 75 tools, exposed to the Claude assistant over OAuth 2.1, and a system where AI wrote nearly all of the code while I owned the specification, review and tests. At the company where I own Salesforce, I took part in rolling out AI in finance, accounting, administration and IT.

  • 6 yearson the Salesforce platform, since 2020
  • 4Salesforce certifications
  • 3 countriesPoland, Germany, Sweden: companies I have worked for
  • 5,000+active users of my Android apps
  • ~75tools in my own MCP server
  • 1–2 weeksto a working prototype

Career

  • since December 2025

    Salesforce System Owner, Tacton (Sweden, remote)

    Sole owner of Salesforce at a product-configuration software vendor: development, permissions, integrations with Kantata and Workday through Workato, production releases, a custom CPQ application in Apex and LWC. Single point of contact for users, management and vendors.

  • 2023–2025

    Salesforce Developer, Vaillant Group Business Services (Germany)

    A loyalty programme for installers: a large Apex API, points and ranking mechanics, an Experience Cloud portal, a REST API for a partner, components administrators can configure without code.

  • 2020–2023

    Salesforce Developer, Britenet

    Clients in education (a 47-branch network: sales and after-sales), insurance (Einstein Next Best Action, French and German versions) and finance. Code review and support for junior developers.

  • since 2020

    Kalendarz Zmianowy, Android and backend

    Three apps from one codebase for firefighters, prison service and energy workers. Takeover and modernisation of code from 2015, Google Play and Przelewy24 payments, a Spring Boot backend. Over 1,000 tests, 99.8% crash-free sessions.

  • 2020–2024

    Computer Science, Kielce University of Technology

    BSc. Erasmus semester at the University of Aveiro, Portugal, 2022.

Tools and technologies

AI

  • Claude
  • Claude Code
  • OpenAI API
  • Agentforce
  • Prompt Builder
  • MCP
  • OAuth 2.1

Systems I connect

  • Salesforce
  • WordPress
  • WooCommerce
  • Google Workspace
  • Microsoft 365
  • Workato
  • Kantata
  • Workday
  • NetSuite
  • Snowflake
  • REST and SOAP APIs

Programming

  • Apex
  • Lightning Web Components
  • Kotlin
  • Java
  • Spring Boot
  • TypeScript
  • SQL
  • Git and GitHub

Salesforce certifications

  • Platform Developer I
  • Administrator
  • Platform App Builder
  • Sales Cloud Consultant

How I work

  • On what you have. I do not rebuild systems from scratch. I fix and extend what works.
  • In small steps. Every change checked, with a backup and a way back.
  • On a separate account. Named access, only to what is needed. Handed back at the end.
  • In plain language. Options with pros and cons instead of one right answer. No jargon unless you want it.
  • For time worked. Single jobs, blocks of hours or ongoing support. Quoted per case.
  • With notes. I write down what I did and why, so the next person does not start from zero.

Five steps, data rules, ways of working together.

Who I work with today

A trading company whose Salesforce was implemented by an outside vendor: ongoing support, about 12 hours a month. A company with Salesforce and a WordPress site: 1–2 hours of changes a month and a larger job every six months, including connecting the site to the CRM. A company with its own mobile app: fixes every two months. Names on request during a call.

I also do

Is there a task someone at your company does by hand every week? Describe it in one sentence.

I reply within one business day. The first call is free of obligation.

Describe the task