Petr Bartek

Hi, I'm Petr.

I help companies bring voice AI to production — from custom TTS voices and conversational bots to full contact center platform builds on Genesys & Sprinklr.

15+ years in telephony · Based in Czech Republic · Available for contract & consulting

A bit about me

I've been building telephony and contact center systems since 2010 — first as an in-house developer, then as a freelance consultant working with enterprises across Central Europe.

My sweet spot is the intersection of voice technology and enterprise platforms. That means everything from training custom TTS models with ElevenLabs, designing IVR flows, building Genesys agent desktops in C#, to deploying full Sprinklr CCaaS implementations across voice, chat, email, and social channels.

I'm hands-on by nature. I write the code, design the architecture, and stay with the project through deployment. No fluff, no hand-waving — just working software.

What I do

I focus on a few things and do them well. Here's where I can help:

01

Text-to-Speech & Voice AI

End-to-end TTS project delivery — voice dataset preparation, model training with ElevenLabs, custom voice design, and production integration for customer-facing voice applications. I also build conversational AI systems using DialogFlow CX and LLM integrations.

ElevenLabs · Voice Cloning · DialogFlow CX · Python
02

Contact Center Platforms

Architecture, customization, and integration of enterprise contact center solutions. Deep hands-on expertise with Genesys Engage, Genesys Cloud, and Sprinklr — from agent desktop development and IVR design to omnichannel routing and reporting.

Genesys Engage · Genesys Cloud · Sprinklr · IVR
03

Backend Engineering & Architecture

Robust backend development for data-driven platforms. I design and build the APIs, services, and database layers that power frontend applications — in Java, C#/.NET, or Python depending on what fits.

Java · C# / .NET · Web APIs · Oracle · MSSQL
04

Other Projects

I also build mobile games (.NET MAUI), automated trading systems, and analytics dashboards. Check out PB Fun Gaming — my indie game studio. If it involves writing code and solving interesting problems, I'm probably interested.

.NET MAUI · Algo Trading · Real-time Systems

Where I've worked

A condensed timeline — most of my career has been in the Genesys/CCaaS ecosystem.

2024 – now

Sprinklr Platform Integration

End-to-end Sprinklr CCaaS implementation for multiple clients — LiveChat, Social, Voice, and Email channel integration.

2024 – now

Genesys Cloud + Voice AI Projects

Custom module integration for Genesys Cloud. React-based agent desktop extensions. TTS voice training and deployment with ElevenLabs.

2022 – 2024

DialogFlow CX & Apigee

Built API proxies in Apigee for communication between Google DialogFlow CX bots and Java backend services.

2015 – 2024

Genesys Engage — Workspace Desktop Edition

Long-running engagement developing and customizing the Genesys Engage call center front end. C#/.NET, Genesys SDK, Oracle backends, WPF.

2017 – 2024

Backend Java Developer & Solution Architect

Architecture and development of backend services powering call center applications. Java, Web APIs, Oracle.

2010 – 2015

Genesys Custom Front End & CRM Dynamics

Full-stack call center solutions on Genesys platform. CRM Dynamics 365 customizations, plugins, and integrations.

Certifications

CCaaS Certified Implementation Specialist Sprinklr, 2024
Care Live Build Assessment Sprinklr, 2024
CCaaS Agent Fundamentals Sprinklr, 2024
CCaaS Supervisor Fundamentals Sprinklr, 2024

Technical skills

Expert

C# / .NETGenesys EngageSolution ArchitectureCRM Dynamics 365

Strong

JavaSprinklrApigeeWeb TechnologiesDevOpsGit

Working knowledge

PythonKubernetesDialogFlow CXOracleMSSQLGenesys CloudLLM / Gen AI

Let's talk

Whether you need a TTS voice pipeline, a contact center integration, or a full-stack solution — I'm available for consulting, project work, and long-term collaboration.

Based in Czech Republic · Available remotely across Europe