Oleksandr Shtykhno

Solution Architect & Software Engineer

Work with OST Download CV

About Me

Software engineer and solution architect with 25+ years of expertise in JVM and cloud technologies, delivering scalable, production-grade systems. Available for engineering engagements and solution-architecture roles — and leveraging AI tooling and context engineering to accelerate delivery on challenging, impactful projects.

25+ Years

Software Development & Architecture

15+ Years

Java Development

8+ Years

Scala Development

15+ Years

Agile Development

Cloud Native
Microservices
Architecture
Product Engineering

How I Can Help

Engineering and architecture, on assignment

Solution & Enterprise Architecture

Designing microservice and event-driven architectures that stay maintainable at scale — domain boundaries, integration patterns, and pragmatic technology choices.

JVM Engineering

Hands-on Scala, Java and Go for production systems — new development, modernisation of legacy codebases, and performance work on critical paths.

Cloud Migration & Platform

Cloud-to-cloud migrations, Kubernetes, Kafka and CI/CD pipelines — moving platforms without stalling delivery, and leaving teams able to run them.

Agentic Engineering

Designing and building agentic systems — LLM integration, tool use, context engineering and multi-agent workflows — applied to real engineering problems, with measurable results.

Work Experience

A journey through innovative projects and impactful solutions

Software Engineer

ING, Netherlands Nov 2025 - Present

Executing an assignment in the Data Customer NL domain.

Scala 2 Cats Kafka Postgres Oracle Copilot CLI AI Agents

Freelance Scala/Go Engineer

Shell Recharge, Netherlands Nov 2024 - Nov 2025

Executing an assignment in the MSP (Mobility Service Provider).

Scala 2/3 GoLang ZIO Akka Kafka AWS K8s

Freelance Scala Engineer / Solution Architect

FedEx Express, Netherlands Jun 2018 - Nov 2024

Developing, delivering, supporting, and monitoring microservice-oriented software and architecture.

Scala ZIO Cats Kafka Cassandra Azure K8s

Senior Software Engineer

Bol.com, Netherlands Nov 2015 - Jun 2018

Developing, delivering, supporting, and monitoring microservice-oriented software and architecture.

Java Kotlin Spring Boot ElasticSearch Oracle GCP

Senior Software Engineer

AssetControl, Netherlands Sep 2010 - Nov 2015

Supporting, designing, developing, and delivering software for managing reference data within financial institutions.

Java Spring Oracle

Technical Skills

Expertise across multiple technology domains

JVM Ecosystem

Scala
Java
ZIO
Cats
Akka

Cloud & DevOps

Kubernetes
AWS
Azure
Kafka
Docker

Agentic Engineering

Context Engineering
LLM Integration
Agent Workflows
Go
MCP

Core Competencies

Distributed Systems Solution Architecture Enterprise Architecture Microservices Architecture Event-Driven Design Functional Programming Object-Oriented Programming Big Data Solutions Reactive Programming CI/CD Pipelines Agentic Engineering Context Engineering

Education

Continuous learning and professional development

Education

Master's Degree

Computer Engineering

National Technical University of Ukraine
'Kharkiv Polytechnic Institute'

1997 - 2003

2026 GH-300 GitHub Copilot Microsoft
2025 The Complete Prompt Engineering for AI Bootcamp Udemy
2024 Learn Rust by Building Real Applications Udemy
2024 Software Architecture: From Developer to Architect LinkedIn
2020 Certified Kubernetes Application Developer (CKAD) CNCF
2018 Scala Advanced Udemy
2017 Google Cloud Platform Coursera
2016 Machine Learning with Big Data Coursera

Languages

Ukrainian Native
English Professional
Dutch B1

Get In Touch

Let's discuss how I can contribute to your next project

Location

North Holland, Netherlands

Email

info@ost-consultancy.nl

Company

OST Consultancy — registered in the Netherlands

Download CV

English CV Dutch CV

Connect