Zoltán Berki

Zoltán Berki

Senior Manager, Software Engineering at Diligent

Budapest, Hungary

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Corvyn

Train abstract reasoning. Offline.

corvyn.zoltanberki.com ↗

Matrix-reasoning puzzles built from progressions, rotations and logical rules. Practice mode names the rule the moment you answer; Challenge is a timed adaptive run that places you on an ability scale. No account, no analytics — your practice stays on your device.

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About

I am a Senior Manager of Software Engineering at Diligent, leading two teams across interconnected projects and partnering with teams whose technical backgrounds and maturity vary widely.

I co-lead the Budapest AI Ambassador program, responsible for propagating knowledge to all engineering teams and helping AI Adoption through Ambassadors as representatives of each team.

I am deeply involved in recruitment organization-wide, and I led our internship program in 2025.

Beyond work hours, I have been running a monthly book club for three and a half years to help build our company culture.

Experience

13+
years building software
16
engineers led at peak
4
companies
3.5
years running a book club
Email · click to copy CV · download PDF
AI · 1

Program and community leadership

  • I co-lead the Budapest AI Ambassador program, responsible for propagating knowledge to all engineering teams and helping AI Adoption through Ambassadors as representatives of each team
  • Contribute regularly to our in-house developer-experience team, building the AI-PDLC tooling published on the Diligent Marketplace
  • Pilot our in-house AI product development orchestrator with both of my teams, and have done so since its inception
AI · 2

Tooling I have built

  • Created the in-house LLM wiki knowledge base for our AI development life cycle
  • Built automated agentic triage workflows
  • Built automated PR review agents that run at scale across 3 teams and multiple projects
  • Built a knowledge curator that lets teams review and consolidate the LLM wiki knowledge base
AI · 3

Hands-on practice

  • Work daily in Cursor and Claude Code as an early adopter and power user of both
  • Design agent harnesses and apply loop engineering to long-running agentic work
  • Ship live, client-facing data feed applications built with AI workflows
  • Build and ship mobile apps with AI workflows, from idea to App Store release

Diligent

Budapest, Hungary · 02/2023 – Present

Senior Manager, Software Engineering

09/2024 – Present
SaaS — Governance
  • Oversee two engineering teams and a group of contractors — 8 direct reports today, down from a peak of 16, with AI transformation sustaining delivery at the smaller size
  • Run multiple interconnected projects, collaborating closely with various other teams
  • Deliver across greenfield, brownfield and legacy codebases, building cloud-native systems on AWS
  • Apply AI both to the development process and to shipped product features
  • Drive recruitment for my own teams and for the broader organization
  • Led the internship program in 2025

Software Engineering Manager

02/2023 – 09/2024
SaaS — Governance
  • Built a cloud-native, greenfield platform consolidating and hosting tooling for research analysts
  • Collaborated closely with multiple engineering and research teams
  • Python
  • TypeScript
  • React
  • Node
  • AWS
  • PostgreSQL
  • DynamoDB

Dealogic

Budapest, Hungary · 05/2017 – 02/2023

Engineering Lead

01/2020 – 02/2023
SaaS — Finance
  • Built web-based products for investment bankers and financial analysts
  • Provided on-call support for production services
  • C#
  • .NET
  • ASP.NET
  • MSSQL
  • Azure

Senior Software Engineer

04/2019 – 01/2020
SaaS — Finance
  • Built a research automation platform as a greenfield, cloud-native project
  • C#
  • .NET
  • ASP.NET
  • NoSQL
  • Azure

Software Engineer

05/2017 – 04/2019
SaaS — Finance
  • Built a research automation platform as a greenfield, cloud-native project
  • C#
  • .NET
  • ASP.NET
  • NoSQL
  • Azure

Morgan Stanley

Budapest, Hungary · 02/2015 – 05/2017

Associate

02/2015 – 05/2017
Software Development — Investment Banking
  • Gathered requirements and carried out research and analysis
  • Developed and tested features, including test-scenario design
  • Supported QA testing, release control and general production support
  • Scala
  • Java
  • C#
  • Angular
  • Python
  • DB2
  • Teradata
  • Spring

Evosoft

Miskolc, Hungary · 11/2013 – 02/2015

Software Engineer

11/2013 – 02/2015
Supported ALM processes with custom Team Foundation Server applications
  • Developed process templates in Windows Workflow Foundation
  • Built Visual Studio extensions in WPF
  • Wrote documentation and unit tests
Education

Bachelor's Degree in Software Information Technology

College of Nyíregyháza · 01/2010 – 01/2013

Strengths
  • Detail-oriented
  • Outcome-driven
  • Open and curious

Books I liked

190 books · 17 genres