Lead Solution Architect & Technical Leader

Arek
Heldt

Blockchain, Cloud & Telecom Systems Expert with 25+ years building enterprise-grade solutions for Nokia, and founding blockchain ventures from the ground up.

[email protected] 555.123.4567 Dallas, TX, USA
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01

About

Blockchain, Communication, Cloud and Payment Systems Expert with a career spanning some of the most transformative decades in technology. I've worked with major Telecommunication sector players including Nokia, T-Mobile and Verizon, leading complex technical programs from architecture through delivery.

As a technical leader and Java architect, I bring deep hands-on engineering depth alongside the strategic vision to found and grow startups — from sourcing funding to shipping product. I invest in Payment and Blockchain-based technologies and am passionate about the intersection of infrastructure, scalability, and financial innovation.

25+
Years of Experience
3
Companies Founded / Co-Founded
10+
Engineers Led
4
Languages Spoken
02

Experience

Nokia Dallas, TX, USA 2011 — Present
Lead Solution Architect, Cloud Consulting & Systems Integration
  • Technical leader & mentor for a team of 10 engineers
  • Designed vSphere-based automation for lab deployments for 50+ testing engineers; virtual labs on demand for IMS CSCF, SMLC, HSS (VMware)
  • Technical consultancy for virtualization of CSCF, TAS and HSS products
  • Implemented Telco Cloud trial for a major national mobile provider using VMware and OpenStack
  • Developed SIP services for IP TV provider (Java + Amdocs)
  • Developed PC client for Set-top-box TV device (Java)
Nokia Warsaw, Poland 2005 — 2010
Solution Architect, Consulting & Systems Integration
  • Designed and developed GSM services – SMS Prepaid Self Provisioning (Java + Amdocs)
  • Developed audio processing tool for Lawful Interception in GSM network (Java)
  • Developed Web GUI for competence tracking (Java + Tomcat + JSP)
Havia.io — Blockchain StartUp USA Startup Phase
Founding Partner & CEO
  • Conceptualized and founded the Havia.io project from the ground up
  • Successfully sourced funding during the startup phase
  • Hired and managed a team of 10 Android/Java/C++ developers
  • Designed and issued HVX Token
  • Java backend development (MongoDB + Apache Tomcat + REST)
PayDirect.pl Warsaw, Poland Startup Phase
Chief Technology Officer & VP
  • Designed technology strategy for the startup
  • Architecture and implementation of Java-based Transactional System; REST, SFTP/PGP, and Mail/SMS API integrations
  • Implemented IT Security Policy: DLP, Identity Protection, Fraud Detection, AML procedures, Disaster/Recovery plan
  • Implemented transition to Private Cloud environment
Logos Poznan, Poland 1998 — 2004
Java Software Developer / Architect
  • Designed and implemented a variety of software solutions including standalone client-server systems and J2EE web applications
03

Skills

Blockchain
dApp Smart Contracts Token Issuance ASIC Mining GPU Mining
Cloud & Infrastructure
OpenStack AWS VMware vSphere Docker Kubernetes
Development
Java / J2EE REST SOAP nodeJS jQuery Android Studio
Databases
Oracle DB Oracle TimesTen MSSQL MySQL PostgreSQL MongoDB
Telecom
MSC HLR SMSC MMSC SMLC CSCF JSLEE IMS SIP
Languages
PolishNative
EnglishFluent
GermanIntermediate
RussianBeginner
04

Education & Certifications

Education
Masters degree in Computer Science
Adam Mickiewicz University, Poznan, Poland
1995 — 2000
Professional Certifications
VM
VCP5-DCV — VMware Certified Professional 5, Data Center Virtualization
VM
VCP-Cloud — VMware Certified Professional, Cloud
OS
OpenStack MCA200

05 / CONTACT

Let's work together.

Open to consulting engagements, architectural roles, and advisory opportunities in Cloud, Telecom, and Blockchain.

[email protected] 555.123.4567