Karol Jarkovsky

Recent AI advances are turning custody software hacks into a real and rising threat. Secubit is a next-generation Wallet-as-a-Service (WaaS) infrastructure built for that reality: it trusts no software layer. By rooting every signing operation in HSM plus distributed in-HSM MPC (FIPS 140-3 hardware security and PassKey authentication), Secubit gives institutions bank-grade digital-asset custody wi

My own company, taking agentic systems from discovery to production. I work with companies to find the new products and services AI makes possible, along with the existing workflows worth optimizing or automating. Then I build the systems, deploy them to production and hand them over running, with the client's team trained to extend them.

* Trade generation platform for asset managers: agents fin

Through BondLedger. Client builds order and execution management software (OMS, EMS) for digital-asset trading. I led their product organization.

Rebuilt how the team works around an agentic product development process on Claude Code (custom agents, skills, workflows and hooks) and the BMad Method, then trained the Product and Project teams on how to use AI and evolve the system over time.

Idea

Grew assets under custody from 0 to USD 5B+ across 50 institutional clients: corporate treasuries, hedge funds, venture funds, family offices and high-net-worth individuals.

Shaped the technical design with engineering for entirely new infrastructure: hardware security module (HSM) vaults, multi-party computation (MPC) signing, multi-signature approvals on Ledger hardware devices running custom f

* Grew the Platform group from 5 to 40 people (5 PMs and 35 engineers at peak) with my engineering counterpart, and brought in OKRs, agile and continuous discovery.
* Owned core platform products across account security, compliance and fraud prevention.
* Built anti-money laundering (AML) and know-your-transaction (KYT) monitoring with Chainalysis and Elliptic into deposits and withdrawals.
* Laun

* Drove security, reliability, and compliance of Contentful’s API-first platform.
* Led the platform team that scaled from 6B to 20B API requests a month within months.
* Built high-performing PM team; instilled customer-first, problem-first culture.
* Established OKRs and dual-track agile, accelerating iteration and alignment.

* Achieved 400% YoY growth by driving innovation of Kentico platform used by 1000+ solution partners for 25,000+ digital properties in 100+ countries.
* Co-developed GTM strategies with C-suite; secured Gartner and Forrester recognition.
* Led a cross-functional team of 12, including product managers, product owners, strategists, marketers, and technology evangelists.
* Launched multiple new produ

* Identified and launched multiple new product lines.
* Transitioned org from waterfall to agile.
* Directed strategic planning, product rollouts, and stakeholder relations.

* Increased managed cloud services revenue by +30%.
* Took over Kentico+, managed cloud hosting on Azure, at 1-2 clients and grew it to 20-30
* Later shut kentico+ down when cost outweighed revenue and moved every client off without disruption.

* Built profitable consulting team; managed 3 solution architects.
* Launched new services, grew consulting revenue, and resolved complex client issues.

* Kentico's first solution architect. Opened its US office in Seattle.
* Delivered scalable solutions for 30+ clients across 50+ projects.
* Trained 500+ users; represented company at trade shows.

Worked as Software Developer at Kentico Software.

Worked as Technical Support Engineer at Kentico Software.

Mar 2026

Sep 2026

Mar 2021

Dec 2020

Dec 2020

Sep 2020

Jun 2014

Jun 2014

Jun 2014