Pavel Zaitsau
Senior Software Engineer · Tech Lead

Pavel Zaitsau

Runs 3×/week. Ships 5×/week.

📍 Remote / EU · Open to opportunities · 300+ Strava trophies · 550+ Vivino ratings · 1k+ GitHub contributions/yr
15+ Years experience
8 Companies
12+ Systems built
5–9 Engineers led

Activity Feed

8 roles · 15 years · every entry shipped to production

Team Lead @ ADF Solutions 2022 – present 3+ yrs · 5–9 eng

Forensic data analysis software appliance for law enforcement and cybersecurity teams. Full platform and integration architecture ownership.

  • Designed Kubernetes-based platform infrastructure and microservices architecture from the ground up
  • Led team of 5–9 engineers: hiring, mentoring, sprint planning, code review governance
  • Built Elasticsearch-based search and document indexing pipeline for high-volume forensic data
  • Established CI/CD governance with GitHub Actions; reduced release cycle friction across the team
  • Drove .NET service design, integration API standards, and cross-team technical alignment
.NETKubernetesElasticsearch Apache AirflowAzureDocker PostgreSQLRedis
Software Engineer @ Ryanair 2021 – 2022 1.5 yrs · microservices

Schedule management system for one of Europe's largest low-cost carriers. High-volume, latency-sensitive backend services.

  • Designed and delivered new microservices for flight schedule management at airline scale
  • Led migration of legacy services from .NET 4.7 to .NET 6 with zero production incidents
  • Implemented performance optimizations that measurably reduced API response times
  • Improved CI pipeline reliability and deployment frequency for the team
.NET 6MicroservicesAzure SQL ServerRabbitMQ
Team Lead @ VEB Technologies / Bank BelVEB 2020 – 2021 1.5 yrs · 5+ eng

Integrated B2B fintech platform for a major Belarusian bank, built on a private cloud with dozens of interconnected microservices.

  • Led full development and QA lifecycle for a complex B2B banking platform
  • Designed architecture across dozens of microservices in a private cloud environment
  • Managed team of 5+ engineers; introduced structured code review and testing practices
  • Owned infrastructure provisioning, CI/CD pipelines, and production release process
.NETMicroservicesPrivate Cloud PostgreSQLRabbitMQDocker
Contractor @ Domino's Pizza UK & Ireland 2019 – 2020 7 mo · e-commerce

Multi-market high-performance e-commerce platform serving millions of orders across UK and Ireland.

  • Delivered iterative feature improvements on a high-traffic, latency-sensitive e-commerce backend
  • Collaborated closely with stakeholders and QA across multiple market teams
  • Mentored junior engineers and led code quality initiatives within the contractor team
.NETAzureSQL Server RedisElasticsearch
Senior Software Engineer @ Coral Technology 2017 – 2019 2 yrs · media/broadcast

Cloud-based B2B platform for media distribution and ad sales, serving broadcast industry clients.

  • Designed and delivered modules for a cloud B2B media distribution platform (Coral MSP)
  • Built a performance and load testing system from scratch — test strategy, framework design, team coordination
  • Led code quality enforcement: architecture reviews, automated UI tests, performance profiling
  • Delivered complex web application features for a cloud-based ad sales system
.NETAWSSQL Server MongoDBElasticsearch
Contractor @ Wolters Kluwer 2014 – 2017 3 yrs · GRC SaaS

SaaS governance, risk, and compliance (GRC) platform and HITRUST CSF integrated risk assessment tool.

  • Designed core components for a SaaS GRC solution: logging/search subsystems, encrypted data store
  • Led architecture and code reviews; drove CI/CD improvements and test automation adoption
  • Managed releases and production support for HITRUST CSF risk assessment platform
.NETSQL ServerElasticsearch AzureJenkins
Team Lead @ Belarusian-Russian University 2012 – 2017 5 yrs · full rebuild

Public website and internal subsystems — built from scratch. Full ownership over 5 years: architecture, team, infrastructure, and delivery.

  • Built complete web portal and internal systems from zero: CMS, event hub, asset management, personnel & schedule systems
  • Led team through full product lifecycle; aligned UI/UX with institutional stakeholders
  • Implemented load balancing and CI/CD pipelines; ensured high availability
.NETSQL ServerIIS TeamCity
Key Developer @ Netologic Inc. (Investars) 2011 – 2014 career start

Investment analytics platform and mobile applications. Early-career, full-stack engineering.

  • Delivered key features for an investment analytics and data platform
  • Built mobile application backend; contributed to multi-project platform codebase
.NETSQL ServerMobile

Gear Locker

Every engineer has their kit. Here's mine.

Daily Trainer

.NET / C# PostgreSQL SQL Server REST APIs

Long-Run Backbone

Kubernetes Docker Apache Airflow Microservices

Terrain Manager

Azure AWS

Route Finder

Elasticsearch Redis MongoDB RabbitMQ

Pacing Tools

GitHub Actions Jenkins TeamCity

Key Systems

Four platforms built or led end-to-end

ADF Solutions 2022 – present

Forensic Data Analysis Platform

Kubernetes-based software appliance for law enforcement and cybersecurity teams. Handles ingestion, indexing, annotation, and case management for large forensic datasets. Designed for deployment as a self-contained, air-gapped appliance.

5–9 engineers led Team Lead + architect .NET · Kubernetes · Elasticsearch · Airflow · Azure
BelVEB / VEB Technologies 2020 – 2021

B2B Banking & Fintech Platform

Integrated B2B platform for one of Belarus's largest banks. Dozens of interconnected microservices running in a private cloud. Full platform lifecycle from architecture through QA.

5+ engineers led 50+ microservices .NET · Docker · PostgreSQL · RabbitMQ · Private Cloud
Ryanair 2021 – 2022

Schedule Management System

Backend microservices for flight schedule management at Europe's largest low-cost airline. High-throughput, latency-critical services with zero-downtime .NET migration.

100M+ passengers/yr .NET 4.7 → .NET 6 .NET · Azure · SQL Server · RabbitMQ · Microservices
Belarusian-Russian University 2012 – 2017

University Web Portal & Internal Systems

Full greenfield rebuild of public website and all internal subsystems: CMS, event hub, asset management, personnel and schedule management. 5-year end-to-end ownership.

5 yrs ownership 6+ subsystems .NET · SQL Server · IIS · TeamCity · Load balancing

Trophy Case

On the Starting Line

Leading teams the same way I pace long runs — consistent, deliberate, no blow-ups

5–9
Engineers Managed

Direct reports at ADF and BelVEB. Covered hiring, mentoring, performance alignment, and engineering culture. Never just a title — always in the codebase with the team.

Teams Built from Zero

Assembled and onboarded engineering teams at BelVEB, Belarusian-Russian University, and Netologic — each time from no team to full delivery.

100%
Hands-On Delivery

Player-coach at every leadership role. Architecture decisions backed by code written, not slides presented. Code reviews aren't delegated — they're the job.

Beyond the Code

The pursuits that shape how I think and work

🏃

Running

300+ Strava trophies. 100K/month for three years straight. Running taught me that consistency beats heroics — the same principle I bring to engineering: show up, ship, repeat.

Strava profile →
🍷

Wine

550+ ratings on Vivino. Wine is systems thinking applied to taste — terroir, vintage, producer, all interacting. I approach architecture the same way: every variable has a reason.

Vivino profile →
✈️

Travel

Remote-first before it was mainstream. Working across timezones, adapting to new contexts fast, staying productive without fixed infrastructure — all skills I've built on the road.

🏂

Snowboarding

Reading the mountain, committing to the line, adjusting mid-run. Same instincts apply in production: assess fast, decide, execute — hesitation is more dangerous than the slope.