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Author - Andrew Saiak

Hi there,

I'm a software engineer specializing in blockchain systems, backend architecture, and infrastructure automation.
My work focuses on building secure, scalable, and event-driven applications for modern distributed environments.


Professional Summary

I have deep experience in designing and implementing multi-service architectures that integrate cryptography, blockchain logic, and cloud-native infrastructure.
My goal is to create systems that are resilient, observable, and verifiably secure — from key management to transaction execution.

I work across the full stack — from protocol-level integrations to user-facing applications — with a strong emphasis on security, performance, and developer experience.


Core Competencies

Backend Engineering

  • Node.js / TypeScript (NestJS, Express, Fastify)
  • PostgreSQL, Redis, and message brokers (RabbitMQ, Kafka)
  • Modular monorepo architectures (NX, Lerna)
  • Data validation, schema evolution, and API design

Blockchain & Cryptography

  • EVM and Solana ecosystem development
  • HD wallet derivation
  • Transaction orchestration and broadcast systems
  • MPC / TSS, threshold-ECDSA / EdDSA, HSM integration
  • Secure signing workflows and non-custodial key handling

Infrastructure & DevOps

  • Docker, Kubernetes, Helm, and Terraform
  • CI/CD pipelines with GitHub Actions and self-hosted runners
  • Environment automation, secret management, and observability
  • Prometheus, Grafana, Loki, and distributed tracing setups

Frontend & Client Integration

  • React / Next.js with TypeScript
  • Secure client-side cryptography (WebCrypto, WebAuthn)
  • PWAs and Chrome extensions
  • IndexedDB-based encrypted storage

LinkedIn

What Is Post-Quantum Cryptography?

Published
Author
Andrew Saiak

Learn what Post-Quantum Cryptography (PQC) is, why it matters, how quantum computers threaten today's encryption, and how developers can prepare their applications for the transition.

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Top Smart Contract Vulnerabilities in 2026

Published
Author
Andrew Saiak

Explore the most dangerous smart contract vulnerabilities in 2026, why even audited contracts still get exploited, and how modern blockchain applications should approach security

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