Pavel Zaitsau
Team Leader | Scrum Master | Senior Software Engineer
Pavel Zaitsau
Team Leader | Scrum Master | Senior Software Engineer
email: pavel.zaitsau@hotmail.com
linkedin: Pavel Zaitsau
github: pavelzaitsau
telegram: pavelzaitsau
Summary
Hands-on technical leader with 15+ years of experience delivering web platforms, microservices, and data-heavy systems at scale. I combine leadership with deep engineering expertise in systems design, cloud platforms, CI/CD, and performance tuning. Recognized for clear architecture, pragmatic delivery, and raising engineering standards through reviews, testing, and mentoring. Skilled at aligning product, security, and ops to ship reliable, scalable software. Practical, fast, and trusted to get things done.
Stack
.NET, Azure, AWS, Kubernetes, Docker, PostgreSQL, SQL Server, MongoDB, Redis, RabbitMQ, Elasticsearch, Apache Airflow, GitHub, Jenkins, TeamCity
Experience
2022 – present: Team Lead at ADF Solutions
2021 – 2022: Software Engineer at Ryanair
2020 – 2021: Team Lead at VEB Technologies (Bank BelVEB OJSC)
2019 – 2020: Contractor at Domino’s Pizza UK & Ireland (via Godel Technologies)
2017 – 2019: Senior Software Engineer at Coral Technology
2012 – 2017: Team Lead at Belarusian-Russian University
2014 – 2017: Contractor at Wolters Kluwer (via EPAM Systems)
2011 – 2014: Key Developer at Netologic Inc. (Investars)
Education
2009 – 2014: Belarusian-Russian University; Engineer’s Degree, Automated Processing Systems
2007 – 2009: Mogilev Regional Lyceum #3; High School
Projects
ADF’s Advanced Data Analysis Platform
Aug 2022 – present
Led the development of a software appliance for forensic data analysis and case management. Designed to streamline data ingestion, processing, annotation, and reporting, empowering law enforcement and cybersecurity teams to work more efficiently with complex datasets.
Achievements:
- Led platform and integration architecture
- Designed Kubernetes-based infrastructure and deployments
- Established CI/CD and release governance
- Managed delivery for a hybrid team of 5–6 engineers; ran Agile ceremonies; coordinated with contractors/vendors
- Drove code quality via reviews, refactoring, and standards
- Built core .NET services/modules for scalable data processing
- Implemented search and indexing with Elasticsearch
- Aligned roadmap and priorities with stakeholders
Technologies: .NET, Kubernetes, Docker, Azure, Apache Airflow, Elasticsearch, GitHub
Ryanair’s Schedule Management System
Apr 2021 – Aug 2022
Part of the team behind Ryanair’s internal schedule management system. I designed and built microservices, collaborated across teams to improve processes, and delivered infrastructure components aligned with best practices.
During my tenure at Ryanair, I demonstrated a strong background in microservices development using the AWS and .NET Core stacks, and I was highly familiar with agile development methodologies and continuous integration/continuous deployment (CI/CD) practices. I possess excellent problem-solving skills and communication skills, and I am highly effective at working collaboratively as part of a team.
Achievements:
- Designed and delivered microservices for schedule management
- Profiled and optimized services for performance and reliability
- Led planning, estimation, and on-time delivery
- Improved CI pipelines and developer throughput
- Migrated legacy services from .NET 4.7 to .NET 6
Technologies: .NET 6, AWS, Docker, PostgreSQL, Jenkins, WPF
BelVEB’s B2B Platform
Jan 2020 – Apr 2021
A highly integrated B2B fintech platform allowing customers to use diverse financial and banking tools alongside the partnership services and programs facilitating a synergetic approach in business.
Achievements:
- Led development, implementation, and automated testing
- Designed solution architecture and cloud infrastructure
- Drove planning, estimation, and predictable delivery
- Managed 5+ direct reports; mentored and hired engineers
- Built and operated dozens of microservices in a private cloud
- Took product from wireframes to production release
Technologies: .NET Core, Kubernetes, Docker, PostgreSQL, MongoDB, Redis, RabbitMQ, ZooKeeper, ELK Stack
Domino’s E-Commerce Platform
Jun 2019 – Jan 2020
Next-generation E-Commerce platform using best of the breed technologies, processes, and architecture principles. I was responsible for the design and delivery of services that collectively form part of Domino’s new multi-market high-performance platform designed to serve multiple markets.
Achievements:
- Delivered features iteratively following Agile principles
- Collaborated with stakeholders to shape scope and priorities
- Partnered with QA to define automated testing strategies
- Worked with POs and Scrum Masters to remove blockers and improve flow
- Mentored engineers and shared best practices via tech talks
Technologies: .NET Core, Azure, Kubernetes, Docker
Coral MSP
Jun 2017 – May 2019
Cloud-based, secure B2B platform that sets industry standards while reducing operational costs. By connecting Media Networks, Broadcasters, and Distributors, it becomes possible to streamline all aspects of content distribution for both linear and non-linear TV. Flexible tools and services eliminate redundant data processing and create synergies with your business partners. Information is collected once, securely stored, and accessed from anywhere.
Achievements:
- Clarified requirements and aligned scope with stakeholders
- Estimated and distributed work across the team
- Designed and delivered new platform modules
- Enforced code quality through reviews and refactoring
- Profiled and optimized performance
- Integrated automated UI tests and CI/CD
- Designed logging and monitoring components
Technologies: .NET Framework, SQL Server, Redis, RabbitMQ, Azure, ELK Stack, Jenkins
Social Network for Pets
Oct 2018 – Feb 2019
Designed and developed backend infrastructure for a next-generation application. Led a team to synchronize mockups with reality.
Achievements:
- Led a team of 5 engineers
- Integrated UI/UX with backend services
- Designed and implemented core architecture
- Established CI/CD pipelines, reducing deployment time by 50%
- Presented to stakeholders and secured additional funding
Technologies: .NET Framework, AWS, MySQL, TeamCity
Coral’s Performance and Load Test System
Jun 2017 – Sep 2017
Designed and led the development of a performance and load test system.
Achievements:
- Analyzed requirements and defined a comprehensive test strategy
- Led the team delivering the performance testing suite
- Designed and implemented the test framework and management tools
- Coordinated with dev teams for seamless integration
Technologies: .NET Framework, Azure, Microsoft Load Testing Framework, PowerShell, TeamCity
Coral’s Cloud-Based Ad Sales System
Mar 2017 – Aug 2017
The highly complex web application allows teams of sales and marketing professionals to collaborate across multiple networks on sponsorship offerings. The fully automated system is packed with helpful features that save time and limit costly mistakes. It provides much-needed visibility of inventory and campaign progress for executives.
Achievements:
- Delivered features and provided production support
- Clarified requirements with business stakeholders
- Estimated and distributed tasks across the team
Technologies: .NET Framework, SQL Server, Azure, Jenkins, DevExpress, JavaScript
Web Portal and Services for Belarusian-Russian University
Feb 2012 – Mar 2017
Developed from scratch a public site and a big amount of internal subsystems for the university.
Achievements:
- Led the engineering team
- Aligned UI/UX design with implementation
- Designed architecture and delivered core services
- Built internal CMS and Event Hub
- Built static asset management and delivery
- Built personnel and schedule management systems
- Implemented load balancing and CI/CD
- Presented to stakeholders and university leadership
Technologies: .NET Framework, SQL Server, IIS, Windows Server, PowerShell, MSTest, TeamCity
Wolters Kluwer’s Project #2
Sep 2015 – Mar 2017
The brand-new version of a SaaS web solution for governance, risk management, and compliance. Includes a couple of web applications and REST services, forming a new solid products suite.
Achievements:
- Designed and developed core components
- Built logging and search subsystems
- Implemented encrypted binary data store provider
- Conducted code and architecture reviews
- Improved CI/CD and package delivery
- Advised UI and API test automation teams
- Trained the team on Git workflows
Technologies: .NET Framework, SQL Server, Selenium, Lucene, NuGet
Wolters Kluwer’s Project #1
Sep 2014 – Mar 2017
The product integrates the HITRUST Common Security Framework (CSF) with the industry’s leading risk assessment workflow software to go far beyond simple risk analysis, combining control-based assessments, multi-stage remediation, robust monitoring, and intelligent analytics in one scalable and customizable Software as a Service solution.
Achievements:
- Delivered releases and provided production support
- Clarified requirements with stakeholders
- Estimated and distributed tasks
Technologies: .NET Framework, Windows Services, SQL Server, Lucene
Netologic’s Mobile App for Market Profile Management and Admin Portal
Feb 2014 – Jul 2014
Designed and developed backend infrastructure to run proof of concept. Led the team.
Achievements:
- Collaborated with business owners on scope and priorities
- Led the engineering team
- Contributed to iOS development
- Designed architecture and delivered core services
- Performed code reviews and set standards
- Set up CI/CD
- Presented progress to stakeholders
Technologies: .NET Framework, Node.js, MongoDB, Azure, TeamCity, Objective-C
Netologic’s Project #2
Jan 2012 – Mar 2014
A web-based research evaluation and commission management system for Chief Investment and Compliance officers, money managers, research directors analysts, and compliance directors.
Achievements:
- Estimated and distributed work
- Delivered releases and supported production
- Clarified requirements with stakeholders
- Led the development team
- Refactored codebase and enforced reviews
- Advised the team on key technical decisions
- Drove adoption of Git and TeamCity
- Introduced SpecFlow and Selenium for UI tests
Technologies: .NET Framework, SQL Server, JavaScript, Selenium, TeamCity
Netologic’s Project #1
Sep 2011 – Mar 2014
Commission management solution designed to help clients to track and generate reports on execution and research commissions. System assists in reconciling and tracking CSA/CCA eligible and non-eligible trades and commissions based on client-defined rules. Generates customized commission reports by region, broker, portfolio manager, or other data points, based on your preferences and reporting requirements.
Achievements:
- Estimated and distributed tasks
- Delivered releases and provided support
- Refactored legacy components
- Integrated with internal systems
- Performed reverse engineering of legacy modules
- Created UI integration tests
- Migrated from SOS to Git
- Drove adoption of Git and TeamCity
Technologies: .NET Framework, Visual Basic, JavaScript, SQL Server, Crystal Reports