Cezary Falba

Full-Stack Engineer / Cybersecurity Consultant - IRIS DFIR Platform

Jan 2025 - present: European public-sector cybersecurity organisation

Sole engineer rebuilding the frontend of IRIS, an open-source incident-response platform used daily by security analysts, as a SvelteKit 2.0 rewrite - delivered incrementally so the platform stayed in live operation throughout.

• Inherited a failed rewrite attempt and, against the recommendation to scrap and restart, chose an incremental section-by-section rebuild that kept the product shippable at every step.
• Sequenced the work auth-first - the riskiest seam - delivering local (session then token-based), LDAP, and combined flows with MFA before moving through the rest of the application.
• Extended into backend API work (Python/Flask), platform hardening, and containerised deployment; landed required backend changes without compromising the stability or security of the production version.

Full-Stack / Blockchain Engineer - GTC Finance (GoToCrypto)

Dec 2024 - present: Independent consulting engagement

Design and delivery of blockchain, fintech, and AI systems from concept to production across frontend, backend, smart contracts, and infrastructure - including several R&D products taken from idea to working prototype.

• Architected and built smart-contract systems, wallet-connected applications, market-data pipelines, and cloud-native deployment environments.
• Owned technical direction and hands-on delivery across the full stack and DevOps.

Full-Stack Engineer, Frontend Lead - Lukka Global

Aug 2022 - Dec 2024:

Joined through Lukka's acquisition of Kepler360 and continued building the acquired product and company platforms for internal and external clients - including US government customers. Led the frontend team (grown to eight engineers) and delivered the Next.js rewrite of the acquired analytics platform.

• Led the full rewrite of the Venato analytics frontend from Angular to Next.js, executed as a clean replacement of the presentation layer behind a frozen API - no disruption to institutional customers.
• Built core products and standalone proof-of-concept applications used across the business.

Frontend Lead / dApp Engineer - Kepler360 (Venato)

Sep 2021 - Jul 2022:

Early engineer on Venato, a platform that indexed the Ethereum blockchain and computed profit-and-loss analytics for crypto portfolios. Designed and built the web application; grew and led a frontend team of five.

The product was strong enough that Lukka acquired the whole company to get it.

• Architected and built the original Angular application - dashboards, PNL curves over time, and transaction/asset histories over dense on-chain data (thousands of transactions per wallet, multiple wallets per portfolio).
• Made the pragmatic early call to build on the team's existing Angular tooling rather than restart around my own React preference.
• Also lead dApp engineer on the FODL DeFi project.

Full-Stack Expert Engineer - Blackstone Group

May 2020 - Aug 2021:

Built internal and client-facing data-visualisation tools alongside a big-data team of engineers, scientists, and analysts.

Senior Frontend Engineer → Frontend Lead - MyLocalPitch / Playfinder

Mar 2019 - May 2020:

Joined during the Playfinder rebrand; stepped up to lead the frontend team when the head of frontend departed. Architected and scaffolded Bookteq frontend - the company's B2B venue-booking SaaS - from zero.

Bookteq is still live and operating today, serving hundreds of venues across the UK and Ireland.

• Owned the architecture of the new product frontend: scaffolded the Angular application, built the core booking calendar and venue management, fully responsive across mobile to desktop.
• Assessed and deliberately rejected native Web Components for shared UI - their integration with the NgRx-based app created more friction than the portability was worth.
• Rebuilt the checkout on Stripe; moved the shared component library to Storybook; ran hiring and day-to-day team leadership.

Senior Software Engineer / Tech Lead - EyeSpy360

Jun 2016 - Mar 2019:

Co-founded a proptech SaaS from a side project into a successful product used across the real-estate industry. Built the initial prototype, then led and mentored a remote engineering team while staying hands-on.

• Built the virtual-tour viewer (three.js / WebVR) and parts of the SaaS management platform.

Software Engineer / Co-Founder - Beyond Media

Mar 2016 - Jun 2018:

Co-founded with ex-Saffron colleagues; won a deal with Lenovo to build a VR entertainment platform.

The only one of three engineers to deliver a working prototype - the Lenovo Entertainment Hub, presented at CES 2017. Lenovo invested $250k and preinstalled it on a series of gaming laptops.

• Built the full backend: JWT-authenticated REST API gateway, Green Man Gaming content integration, PayPal payments.
• Built an Electron storefront and game-library launcher integrating with Steam, Origin, and Uplay to detect and launch games in VR.
• Built VR-upscaler technology enabling any game to run in VR on HTC Vive, Oculus Rift, and Lenovo's headset.

Software Engineer / Architect / Consultant - Yonder & Beyond

Feb 2015 - Mar 2016:

Brought into a VC and startup incubator as the systems-architecture and engineering expert, working alongside the CTOs and engineering teams of portfolio startups.

Helped ship several products still operating today, including Boppl, Gophr, and Prism Digital.

Software Developer - Saffron Digital

Jan 2008 - Feb 2015:

• Sole frontend developer on SonyEricsson PlayNow Arena, one of the first single-page web applications of its era.
• Designed and wrote the most complex parts of the video platform driving Samsung Media Hub - CMS, license server, encoding/encryption job orchestration, storage. The platform became Saffron's core product and, repurposed to run HTC Play Store, led to the company's acquisition by HTC for $48m in 2011.
• Later played a key role in re-architecting the platform onto microservices and cloud, powering KDDI's Video and Anime Pass - major VOD services in Japan.

Junior Developer - Filmnight Limited

Sep 2005 - Jan 2008:

Built a CMS for video delivery on WAP portals run by Vodafone, T-Mobile and O2 in the UK.