Jérôme Krell
AboutExperienceBlog

Tech that
ships. Deals
that close.
One singularity.

Where engineering credibility and business instinct collapse into a single point of impact.

01

What people say

Jerome bridges engineering and business like few people I've met. He grasps technical complexity and translates it into clear, honest proposals that clients actually trust.

Alexander M. CTO, Enterprise SaaS
02

Engineer turned business developer in sovereign IT

I bridge deep engineering experience with business development at Elca Cloud Services — selling sovereign cloud, workplace, and AI solutions the way they should be sold: technically honest, efficient, and free of fluff. From full outsourcing mandates to consulting engagements, I bring hands-on credibility to every offer defense and client conversation.

Previously led blockchain innovation programs at The Hashgraph Association, built classified government systems, and maintained some of Switzerland's largest Oracle databases at SIX Group. Red Hat certified in containers and Kubernetes. Native German speaker, fluent in English.

9+

Years Experience

10+

Projects Led

26+

Engineers Mentored

CHF 7.5M+

Project Volume Managed

CHF 1.5M+

Sales Revenue

2M+

App Downloads

03

Experience

Elca Cloud Services

2023 – Present

Business Development Manager

Developing the cloud business with a focus on workplace, sovereign cloud, consulting services, and full outsourcing mandates. Leveraging deep technical expertise to deliver efficient, no-nonsense solutions — including on-prem and public cloud AI capabilities.

Sovereign Cloud · Applied AI · Workplace · Consulting

Senior Engineer

Development for highly critical classified government projects. DevOps and consulting for enterprise customers (~100K engagements). Led offer defenses for public WTOs and RFPs across insurance, retail, and finance.

DevOps · Government · Enterprise Consulting · WTO/RFP

The Hashgraph Association

2023

Lead Solution Engineer

Technical lead for over 10 blockchain projects (250K–750K, 6–12 months). Led development of decentralized applications in serverless and microservice environments. Created startup and enterprise architectures, led technical training sessions, and mentored 6+ interns and junior engineers.

Hedera Hashgraph · Serverless · Microservices · Blockchain

SIX Group Services AG

2020 – 2022

System Engineer

Built a DBaaS platform for Oracle, PostgreSQL, and MySQL with Ansible and Python. Maintained some of the largest Oracle databases in Switzerland with 24/7 support for 700+ databases. Developed and deployed a fullstack Django application on OpenShift. Educated over 20 apprentices in system engineering and application development.

Oracle · PostgreSQL · Ansible · Python · Django · OpenShift

Swisscom AG

2016 – 2020

Business IT Specialist (Apprenticeship)

Developed blockchain microservices on Hyperledger and Ethereum with Python, Go, and Rust. Lead student engineer. Extended PHP applications and automated Windows deployments with PowerShell.

Hyperledger · Ethereum · Python · Go · Rust