Sándor Nagy
Seasoned tech leader. Hands-on architect. Writer, game dev, and coach.
More than 20 projects across 8+ countries. 15 years and 6+ industries. A hands-on-keyboard technological leader with spikes in communication, architecture, and deep expertise — an experienced team builder and compassionate manager in highly competitive environments.
I believe that doing is key to achieving results; talking about how is a distraction. Through delegation and empowerment, I aim to bring out the best in anyone building a solution. Writing is my preferred communication style, with a passion for structure and clarity.
Experience
Principal Engineer — McKinsey & Company Feb 2022 – Aug 2025 · Budapest, Hungary
Solution architecture, microservices, and hands-on technical leadership across digital transformation engagements in EMEA, the UK, and beyond.
Tech Lead / Agile Architect — IncepTech Aug 2020 – Feb 2022 · Budapest, Hungary
Led engineering delivery teams across multiple countries and industries. Solution architecture, team leadership, and hands-on delivery of greenfield and transformation programs.
Senior Software Engineer — IncepTech Jan 2018 – Aug 2020 · Budapest, Hungary
Microservices and hands-on technical leadership on banking and telco transformation projects across Central and Eastern Europe.
IT Consultant — Independent Dec 2015 – 2018 · Budapest, Hungary
Focused on disaster recovery and availability of IT infrastructures. Worked behind webshops, integrated multiple services to automate tedious tasks, and helped clients scale dependable infrastructures at low cost using hybrid cloud solutions.
Software Developer — Webmine Kft. Aug 2010 – Nov 2015 · Budapest, Hungary
Built Silverlight line-of-business applications — mostly administrative tools for clients' webpages. First project was a tender management system. Supported a legacy WinForms invoicing application and helped implement a second-generation webshop with integrations into older systems.
Selected Projects
Warsaw, Poland — Logistics control system (McKinsey, 2025)
Co-led a 10+ engineer team delivering new functionalities for an established logistics control product. Created the next-level technical north star to shorten time to market for new features. Java, Spring Boot, microservices.
Cairo, Egypt — Core banking (McKinsey, 2023–2024)
Built a double-entry bookkeeping-ready product management system for unsecured loans, leading a team of 5. Go, systems design.
London, United Kingdom — Automotive consumer app (McKinsey, 2022–2023)
Re-architected a consumer-facing automotive application. Established an end-to-end responsible squad, bridged enterprise architecture with day-to-day delivery, and owned all architecture and cyber-security documentation for a high-scale launch. Software architecture, AWS, agile.
EMEA — Greenfield banking platform (McKinsey, 2021–2022)
Kicked off and rose to Tribe Tech Lead for a greenfield banking solution. Led the current account, transactions, and credit card squads to MVP delivery. Shaped the product and engineering culture as well as the choreography-based microservice architecture. Evolutionary architecture, systems design, NodeJS.
Berlin, Germany — Construction-industry plugin (IncepTech, 2021)
Tech-led a construction-industry plugin development; implemented and launched the MVP in under 3 months. C++, C#.
Almaty, Kazakhstan — Banking MVP (IncepTech, 2020)
Tech-led an engineering team building the first-phase MVP of a bank transformation. Microservices, Spring Boot.
Baku, Azerbaijan — Mobile & back-end re-architecture (IncepTech, 2020)
Architect and tech lead of a joint client team re-architecting mobile and back-end solutions during a bank transformation. Native mobile, microservices, JMeter.
Warsaw, Poland — Telco greenfield & retention journey (IncepTech, 2020)
Tech-led a two-squad engineering team at a telco: delivered the foundations of a new greenfield project and integrated a digital end-to-end retention journey. Led DevOps efficiency exploration and streamlined steps to speed up time to market. Microservices, ASP.NET.
Bucharest, Romania — Banking digital transformation (IncepTech, 2019)
Tech-led a team aiding the digital transformation of a Central European banking group. Implemented data pipelines for product and sales performance analytics, oversaw and integrated ML modelling for a next-best-offer engine, and redesigned a digital signature flow. Microservices, CQRS, Spring Boot.
Zagreb, Croatia — Credit card application journey (IncepTech, 2018–2019)
Part of a 6-person engineering team digitizing a credit card application journey for a Central European commercial bank. Focused on integrating scattered data sources and providing high-performance interfaces to 3rd parties. React, ASP.NET, NodeJS.
Personal Values
Embrace — Family and friends first. Strangers and acquaintances always treated with kindness and respect. Lives and health over any other priority.
Entertain — Make others feel, think, laugh, or be amazed — to disconnect from their problems for a short while.
Engage — Teach. Inspire thinking about new ideas — in tech, principle, or art.
Empower — Enable others to follow and build upon, so they can achieve more in peace than was possible before.
Enjoy — Life is too short not to.
Said about me*
"I would point out that you can connect engineering and business world, you have huge experience and great people skills. Best experience that you entered our project and calmly got it back on track. At the time I could not imagine myself doing that."
- Roland Sz. [senior data engineer]
"Liked working with you. You took the lead, actively pushed and made it happen. Always supported your team, we could always count on you and your wide experience."
- Gergo V. [senior software engineer]
"You always had sharper insights than most. You could always go one step deeper for pros and cons that others missed. I liked that you gave us space to earn experience."
- Akos Sz. [senior engineer]
"Always kind, empathic, calm, very caring and professional. This combo is rare, especially in engineers."
- Richard T. [coach and people leader]
"His technical expertise is top-notch, and he quickly became a reliable pillar of the team. Over time, he grew into a conscientious and supportive leader. Someone you can always count on—both professionally and in people management.
If anything, his high standards sometimes lead him to take on more than necessary, but that also reflects his strong sense of ownership and commitment."
- Andras M. [technical leader, senior software engineer]
"Direct, operative leader who earns respect with his technical and process knowledge. Quick, decisive and experimental while being thourough enough, these are great traits."
- Gabor B. [mobile dev chapter lead]
*Names may be altered or hidden due to NDAs in effect
Current projects
Digital-First Consultancy
Off-the-shelf Tech North Stars
Architecture packages, ready to use
Ready-made solution and enterprise architectures — user stories, C4 and security diagrams, and ADRs — that shave months off your next initiative. Buy once, own it forever.
Browse the packages
Digital Cliff
Legacy modernisation · レガシー近代化
Legacy modernisation and tech due diligence for organisations staring down the 2025年の崖. Outcome-based pricing, no vendor lock-in, quick wins during the assessment rather than after it.
See the pathwaysCoaching
1-on-1 tech leadership
Tech leadership coaching from an ex-management consultant with 15+ years in software and digital. For the quiet expert who knows the right answer but cannot get it heard in the room.
Learn moreGame Studio
Giant of the Stars
Sci-fi mystery novel · manuscript
Tens of thousands of souls aboard one starliner, and a routine crossing that went deadly in a blink. Written in public, 60 chapters complete, shared without a paywall.
Read manuscript!
Perseus Patrol
4X RTS · playable demo
A narrative-driven 4X-RTS set years after the Giant's accident. Command a patrol on the edge of the Perseus arm, where every jump costs something you cannot get back.
Play the demo
Eternal Light
2.5D action adventure · in development
Discover the root of your tragedy across an age that refuses to stay buried. Stave off the darkness or fall for eternity.
Find out moreTooling
SlideCraft Studio
The consulting deck builder
Build slide decks with Gridd in the browser or on your Mac/Win. No server and no account — the decks live in your own browser.
Open the studio
Gridd
PowerPoint add-in
No more misaligned text boxes, endless nudging, or clunky formatting — with Gridd, you get beautifully designed, pixel-perfect slides 5× faster than using PowerPoint alone.
Get it on Marketplace
Tulzkit
Small local storage tools, like password gen, image manipulation, etc.
A growing toolkit for anyone wanting to own their data, most functionality here uses local storage, except where online features are a must.
Visit Tulzkit
Timelines
Embeddable timeline editor
A simple, embeddable timeline editor to plan a sharp plot when the story gets complicated — and to keep it straight once it has.
Try it!Mindgraph
Coming soon
A navigable map of digital product development: every concept a node, every trade-off an edge you can walk. Arrive with a question instead of a curriculum.
Read the vision