Jan Pomer

• Leading the architecture for blockchain-based systems.
• Developing Teranode Sign, a secure document-signing platform.
• Driving scalability, security, and performance across the platform.

• Leading 10+ engineers, optimizing delivery and team productivity.
• Mentoring developers and supporting their career growth.
• Ensuring cross-team collaboration and execution.

• Progressed from Engineer to Team Lead, managing 10+ developers.
• Delivered blockchain solutions including document signing and data platforms.
• Contributed to scalable blockchain infrastructure (Teranode PoC).

• Built enterprise systems: an EV charging API, tax systems, a loan platform, and healthcare solutions.
• Focused on backend development and system integrations.

• Worked on telecom systems, number portability, and secure archiving.

Teranode Sign — Blockchain, Document Authentication, Cryptography, Verification

A document authentication service that replaces wet signatures and email-based workflows with cryptographically signed, blockchain-anchored documents — tamper-evident and verifiable by anyone, anywhere, without a third party.

Teranode — PoC, Blockchain (BSV), Microservices, 1M+ TPS, Scalability

A modular, microservices-based node architecture for the BSV blockchain, engineered for unbounded scalability — processing over one million transactions per second to support enterprise-grade applications across finance, healthcare, retail, and government.

eLivestock — Solution Architecture, Blockchain, Traceability, Web & Mobile

A digital livestock management platform for animal identification, record-keeping and traceability, using blockchain to guarantee tamper-proof records and an auditable chain of custody. It lets livestock owners register identification marks, manage herds, and access market pricing in line with agricultural legislation. I was the solution architect, developed during my work at nChain.

Autistica — Android, Kotlin, Mobile, Accessibility

The Android mobile app for Autistica, the UK's autism research charity, building evidence-based tools — created with and for the autistic community — to help autistic people live happier, healthier and longer lives.

miRadio — Java, Spring Boot, Amazon Alexa, Google Assistant, Voice UI

Backend system for a voice-activated, on-demand radio application on Google Assistant and Amazon Alexa, built at Inova IT. Radio stations could publish their content and configure the behaviour of the voice experience, delivering on-demand stations and programming to listeners entirely by voice.

Number Portability System — Java EE, Telecom, Number Portability, Integrations

Mobile and fixed-line telephone number portability system delivered at Teletech for the Eastern Caribbean Telecommunications Authority (ECTEL) and Ukraine, letting subscribers keep their numbers when changing operators by coordinating porting and number routing between carriers.

E-Archive — Java EE, Long-Term Archiving, RFC 4810, Document Integrity

Long-term electronic archive service for the Serbian Post Office, built at Teletech and based on the RFC 4810 Long-Term Archive Service. Provided secure, verifiable preservation of electronic documents across extended retention periods, maintaining their integrity and evidentiary value over time.