Szymon Sławomir Spyra
Available for Staff Product Engineering Roles
$ sys.init --role "Staff Product Engineer"

Szymon Sławomir Spyra

Staff Product Engineer & Full-Stack Architect

8+ years of expertise architecting high-performance web applications, Node.js backend services, Knex.js & SQL database optimization, React frontend systems, and scalable distributed infrastructure.

Get in Touch Launch System Console

// Product Engineering Philosophy

Engineering Background & Mindset

I am a Staff-level Product Engineer with over 8 years of hands-on experience building, scaling, and maintaining production web applications. My core expertise sits firmly at the intersection of full-stack product development and backend reliability.

I specialize in taking broad product visions and translating them into robust, performant technical implementations — bridging smooth user-facing React interfaces with high-concurrency Node.js microservices, optimized Knex.js database schemas, and Redis caching.

Linguistic Proficiency

  • Polish Native Speaker (Polski)
  • English Fluent / Technical Mastery
  • Spanish Proficient (Español)

// Product Tech Stack (8+ Years Experience)

Backend, Databases & SQL Stack

Node.js Express Knex.js (SQL Query Builder) MySQL / PostgreSQL Redis Caching RESTful APIs Python Java PHP

Frontend Engineering

React JavaScript (ES6+) TypeScript Ember.js Handlebars HTML5 / CSS3 Layouts

Systems & Low-Level Engineering

System Architecture C / C++ C# Kernel Modules / Performance Tuning

Product Delivery & Open Source

Product-Led Engineering Async Communication Open Source Ethos Git & CI/CD Docker

// Architecture & Full-Stack Systems

⚙

High-Performance Database & Backend Architecture

Designing scalable relational schemas and query layers using Knex.js, MySQL, and PostgreSQL. Experienced in optimizing complex SQL queries, index strategies, and Redis caching layers to ensure low latency under heavy traffic.

⚡

End-to-End Product Feature Execution

Taking high-level product requirements and engineering them end-to-end — connecting reactive client interfaces in React/Ember.js with resilient Node.js services and robust API endpoints.

🔬

Backend Reliability, SQL & QA Engineering

Building and testing backend services with SQL databases (MySQL, PostgreSQL) and Redis. I focus on functional verification, edge-case testing, and inspecting raw SQL queries, API payloads, and application logs to catch bugs early and ensure system stability.

🛡️

Cybersecurity, SecOps & Threat Mitigation

Architecting hardened systems with 5+ years of deep technical expertise. I specialize in rigorous vulnerability assessment, secure code review, threat modeling, and real-time log analysis across Linux environments, SQL databases, and secure API boundaries to neutralize attack vectors and ensure enterprise-grade security.

// Academic Credentials

Jagiellonian University (Uniwersytet Jagielloński)

Kraków, Poland

Degree Completed: B.Sc. / M.Sc. Academic Program

Graduated from Poland's premier higher education institution in Kraków. Core specializations in Computer Science, Applied Mathematics, and Advanced System Architecture.

// Live Systems Core Terminal

Interact directly with the product engineering console engine below.

szymon-spyra@product-core:~
Product Architecture Core v8.2.0 initialized.
Type 'help' to view available commands.
spyra-kernel$ 

// Direct Communication

Open to Staff/Senior Product Engineering roles, architecture consultations, and open-source contributions.