About

Software engineering, team leadership, and automation.

Software Engineering Team Lead with 8+ years at EY, combining hands-on development with technical leadership.

I developed and supported an internal enterprise application used by 20,000 people across 27 countries, backed by 15 supporting services for replication, imports, reporting, updates, and mail processing.

I work across hands-on development, technical leadership, requirements, stakeholder communication, planning, documentation, reporting, production support, and technical interviews.

I am also designing a local-first coordination layer for coding agents. This work explores task-specific context compilation, reusable skills, model routing, and token accounting. I am learning how to reduce unnecessary context and token use without compromising engineering quality or human control.

Outside EY, I build independent products for learning, personal finance, developer tooling, and my own infrastructure.

Experience

EY · 2017 — present

Jul 2026 — Present

Software Engineering Team Lead · Vilnius

  • Lead engineering delivery and team execution across application development, support, and production operations.
  • Own technical planning and stakeholder communication.
  • Use AI-assisted tools for research, prototyping, code review, and documentation, with human review and standard quality controls.

Oct 2024 — Jun 2026

Senior Software Engineer · Vilnius

  • Led enterprise application delivery, support, and enhancement.
  • Gathered requirements, defined user stories and feature plans, maintained documentation, and reported progress.
  • Conducted technical interviews and led week-long on-site onboarding for new joiners.
  • Introduced agentic engineering workflows, including MCP integrations, reusable skills, and supporting tooling.

Aug 2022 — Oct 2024

Full Stack Engineer · Vilnius

  • Developed and supported an Angular, C#, and SQL Server vacation and overtime application used by approximately 20,000 people across 27 countries.
  • Built and supported 15 services for data replication, imports, reporting, updates, and mail processing.
  • Collaborated with cross-functional teams on delivery.

Oct 2019 — Jul 2022

Software Automation Engineer · Minsk

  • Delivered two web projects with HTML, CSS, JavaScript, C#, and SQL Server.
  • Led one project, coordinated client communication and delivery, and deployed applications for external client companies.
  • Contributed to RPA solutions.

Dec 2017 — Oct 2019

Automation Engineer · Minsk

  • Built approximately 10 automation solutions for Word and Excel generation, business systems, data integration, and database workflows.
  • Gathered requirements and worked with internal clients on UAT.
  • Prepared test plans, project documentation, and user guides.

Engineering

How I build and operate software.

Application engineering

Angular and TypeScript interfaces; C#/.NET and Express services; API design, integration, maintenance, and production support.

Data and integrations

SQL Server and PostgreSQL data layers, imports, replication, reporting, background processing, mail flows, and service-to-service integration.

Delivery and operations

Git, Azure DevOps, CI/CD, Docker, nginx, deployments, health checks, logging, monitoring, and incident-aware production support.

Automation and enablement

Blue Prism, VBA, and Office automation alongside reusable engineering practices, technical documentation, and delivery support.

AI-assisted engineering

GitHub Copilot and Factory AI for corporate work; Codex and Claude for independent products, research, prototyping, implementation support, review, documentation, and automation.

Independent projects

Products and infrastructure I build and operate.

Personal finance product

spending deck

Built to manage income, expenses, budgets, goals, and analytics in one place.

Private mood tracker

mind mirror

A focused space for quick mood check-ins, optional notes, recent history, and a 60-day emotional heatmap.

Personal Telegram utility

telegram stats

A private workspace for reviewing your Telegram messages and reactions, then cleaning up selected activity.

Independent catalog product

vinyl room

A self-hosted vinyl catalog and inventory workspace for browsing records by genre, condition, price, and availability.

Personal media library

moonleaf

A personal library for tracking anime, manga, books, films, and series in one place.

Documentation for a private tracker

tracker

Deployment and architecture documentation for a self-hosted health tracker. No health data is hosted here.

Private clinic workspace

clinic

A private clinic workspace for visit tracking, patient records, doctor workflows, and reporting.

Open-source Minecraft ecosystem

waypoint book

Built to create and play structured Minecraft quest books through a Forge mod and browser-based authoring hub.

First commit · 20 Aug 2026

Local-first engineering platform

opshangar

Built to coordinate software projects, coding-agent runs, workflows, Git worktrees, reusable skills, and engineering evidence under human control.

Portfolio & product index

skiryanau.com

Built to present and operate my products from one place using static HTML, CSS, JavaScript, Docker, and nginx.

Checking site release…