# Anastasiia Naumenko

> Senior Software Engineer @Oak Street Health | Microsoft Certified: Azure Developer Associate

Location: Wakefield, Massachusetts, United States
Profile: https://flows.cv/anastasiia

I'm a Senior Software Engineer at PHD Solutions Inc. With over 9 years of experience, I specialize in crafting high-quality software components. I collaborate with the lead engineer to transform system architecture and product requirements into well-designed solutions. Over the past 6 years, I've dedicated myself to developing distributed, scalable, and reliable software across various domains, including absence management, payroll calculations, document management, benefits, sports trading, and HR platforms.

I hold Microsoft certifications such as Azure Fundamentals and Azure Developer Associate. I have achieved a high score in IELTS, and earned a Bachelor's degree in Economic Cybernetics from Kyiv National University of Technologies and Design. My commitment to .NET Core/C# drives me to continually seek opportunities for learning and skill refinement.

If you have any questions, feel free to reach out at tasia.naumenko@gmail.com!

Skills:
𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: C#, Javascript, Typescrypt, SQL, Powershell, YAML
𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: .NET Core/ASP.NET Core, ReactJs, AngularJs
𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀/𝗢𝗥𝗠: MS SQL Server, MySQL, PostgresSql, MongoDB, Snowflake, Dapper, EntityFramework, OLAP
𝗘𝘃𝗲𝗻𝘁/𝗦𝘁𝗿𝗲𝗮𝗺/𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴: Apache Kafka, RabbitMQ, Debezium
𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻/𝗤𝘂𝗲𝘂𝗲𝘀: gRpc, HTTPS/REST, Amazon SQS, RabbitMQ
𝗠𝗲𝘁𝗿𝗶𝗰𝘀/𝗧𝗿𝗮𝗰𝗶𝗻𝗴: Prometheus, Jaeger, Elastic, Kibana, Grafana, signalFx
𝗖𝗼𝗻𝘁𝗮𝗶𝗻𝗲𝗿𝘀: Docker, Kubernetes, k9s
𝗖𝗹𝗼𝘂𝗱: AWS, Azure
𝗖𝗜/𝗖𝗗: TeamCity, Jenkins, Octopus, Azure DevOps, Git, Gitlab, IIS
𝗧𝗲𝘀𝘁𝘀: nUnit, xUnit, Specflow, Integration Testing, Unit Testing, Load Testing
𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵𝗲𝘀, 𝘀𝘁𝘆𝗹𝗲, 𝗮𝗻𝗱 𝗽𝗿𝗶𝗻𝗰𝗶𝗽𝗹𝗲𝘀: OO (Object-Oriented), SOLID, GoF (Gang of Four), EAP (Enterprise Application Patterns), SOA (Service-Oriented Architecture), REST (Representational State Transfer), DDD (Domain-Driven Design), Event sourcing, Eventual consistency
𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: Monolith, Microservices, Multi-tiered, Multi-layerd, Onion
𝗢𝘁𝗵𝗲𝗿: Agile, Kanban, Notion, Confluence, Diagram.io, CSS, HTML

## Work Experience
### Sr. Engineer I, Software Engineering BE @ Oak Street Health
Jan 2024 – Present | Wakefield, Massachusetts, United States
Product: Health patient management system 
Core Responsibilities:
Researching and providing design for complex solutions covering business requirements, including the usage of Kafka stream technologies and eventual consistency approaches;
Collaborating in close partnership with the leads and principal engineers to transform system architecture and product requirements into well-designed, efficient, and reliable software components using DDD;
Designing, implementing, testing, deploying, and maintaining software solutions, elevating service performance, durability, cost-efficiency, and observability(Stateful Kafka stream storage optimized using compression up to 150%, MongoDB search using Atlas search index queries optimized up to 80%) ; 
Mentoring co-workers in technologies and design practices;
Taking ownership of the product and the team's domain and leading knowledge sharing and consultation in cross-team collaboration to improve overall quality and reliability;
Tech: C#, ASP.NET Core, .NET Core, MongoDB, Confluent Kafka, Kafka streams, Java, Kotlin, Azure, Docker, K8s, SOLID, DDD, GoF, xUnit, Kafka connectors, CDC, Grafana.

### Senior Software Engineer | Developer | Full Stack | .NET | C# @ PHD Solutions Inc.
Jan 2023 – Jan 2023 | Burlington, Ontario, Canada
PHD Solutions Inc., Burlington, Canada — Senior Software Engineer
Product: Absence management system, payroll calculation, document management, benefits management, etc; 
Responsibilities:
Develop individual software components with a commitment to quality; 
Collaborated in close partnership with the lead engineer to transform system architecture and product requirements into well-designed and implemented software components; 
Consulted in technologies like Docker and Azure, DDD approach, Eventual consistency, distributed systems, and microservices architecture to design future components to be implemented yet; 
Designed, implemented, tested, deployed, and maintained innovative software solutions to enhance service performance, code base flexibility, and cost-effectiveness; 
Took ownership of designing and refactoring in a compact time frame; 
Provided constructive feedback to fellow development team members, and mentored them during the onboarding process;
 Researched and provided design for complex solutions covering business requirements; 
Took ownership over the configuration of CI/CD, design, and implementation of infrastructure for integration tests.
Tech: C#, ASP.NET Core, .NET Core, MS SQL Server, EF, RabbitMq, Azure, Docker, SOLID, GoF, React, xUnit, nUnit

### Senior Software Engineer | Developer | Full Stack | .NET | C# @ SoftServe
Jan 2020 – Jan 2023 | Киев, Украина
Project: Namely (USA): mid-sized HR distributed platform, benefits, tax enrollment, etc)
Responsibilities:
Developing individual software components and high-quality distributed system software, prioritizing quality, test-driven development, and robust software engineering practices; 
Actively participated in software design reviews, conducted peer code assessments, and provided valuable input and feedback to fellow development team members; 
Designed, implemented, tested, deployed, and maintained innovative software solutions, elevating service performance, durability, and cost-efficiency; 
Employed best practices in software engineering to uphold a high standard of quality for all team deliverables; Production issues research using metrics, tracing services such: Prometheus, Jaeger.


Project: Canadian tire (Canada) -  household shop network dashboards.
Responsibilities:
Engaged in cutting-edge research and development to drive project innovation and efficiency.
Implemented Continuous Integration and Continuous Deployment (CI/CD) pipelines, enhancing development workflow and product delivery.
Conducted thorough performance profiling to ensure optimal dashboard functionality and responsiveness.
Maintained comprehensive documentation, ensuring clarity and continuity throughout the project lifecycle.
Analyzed and clarified project requirements, translating business needs into actionable development tasks.
Fostered a collaborative environment through regular knowledge sharing sessions, contributing to team skill enhancement.
Upheld high-quality standards by rigorously unit testing all developed features, ensuring reliability and stability.
Tech:  C#, ASP.NET Core, .NET Core, MS SQL Server, PostgreDb, Dapper, Kafka, Debezium, CDC, gRpc, Docker, Kubernetes, AWS, Angular, Jenkins, Octopus, XUnit, Prometheus, Jaeger, Eventual Consistency, Event Sourcing, Microservices, DDD, SOLID.

### Software Engineer | Developer | Full Stack | .NET | C# @ PMLAB (LLC “TT Solutions, LLC “Betlab group”)
Jan 2017 – Jan 2020 | Киев
Product: Sports trading system as a distributed system with multiple feed integrations, real-time, data-intensive, microservices.
Product: Legacy sports trading system: windows services, .NET Framework 4.7.1, integration of old and new systems.  
Responsibilities:
Developed distributed multi-tiered software solutions, ensuring scalability and reliability.
Managed legacy system support while integrating new system components to modernize the architecture.
Conducted extensive refactoring and performance enhancements to improve system efficiency.
Implemented comprehensive testing protocols, including unit, integration, and load testing, to ensure robustness.
Managed integrations with high-load systems, optimizing performance and reliability.
Tech: C# 5.0+, .Net Framework 4.5+/.NET Core 2.0 +, MS SQL Server, T-SQL, MongoDB,  Angular, React,  Apache Kafka, NUnit,  Asynchronous, Docker, Kubernetes, EAA patterns, Service-oriented architecture (SOA), Microservices, REST; Object-oriented approach: SOLID, GoF.

### Integration Software Engineer | .NET | C# @ Terrasoft (GARTON VENTURES LTD)
Jan 2016 – Jan 2016 | Kyiv, Ukraine
Project: Bpm’online: premium vendor of process-driven cloud-based software
Responsibilities:
Tailored Bpm’online to meet intricate custom business requirements, enhancing operational efficiency.
Successfully integrated disparate systems, ensuring seamless data exchange and process automation such as SAP.
Expertly handled and processed large datasets, maintaining data integrity and accessibility.
Contributed to the creation of new features and the refinement of existing ones, driving continuous improvement.
Maintained clear and comprehensive documentation, supporting effective knowledge transfer and system maintenance.

Tech: C#, .Net Framework 4.5, Web app, SOAP,  MS SQL Server, T-SQL, JavaScript, Ext.Js, Require.Js,  Asynchronous, Redis, IIS

### Software Engineer | Developer | .NET | C# | WPF @ Epsy Soft(IT Soft LLC)
Jan 2015 – Jan 2015 | Ukraine,Kyiv
Product: DefTalk – end-to-end encrypted messenger. Responsible for client-side applications for Windows(desktop/RT/mobile) versions.
Responsibilities:
Take part at the frontend development for desktop/RT/mobile applications, focusing on creating a seamless user experience.
Streamlined application performance through meticulous refactoring, enhancing code maintainability and efficiency.
Optimized UI responsiveness, ensuring quick and fluid interaction across various Windows platforms(desktop/RT/mobile).
Tech: C#, .Net Framework 4.5, WPF,  XAML, Asynchronous, LINQ.

### Engineering programmer | Developer | Mac | Mono | C# | Cocoa @ Cyan Soft Ltd(Ramka Ltd)
Jan 2014 – Jan 2015 | Kyiv
Product: MacShiny - a desktop application for Mac OS(10.6-10.10) file\memory management
Spearheaded the development of MacShiny, an innovative desktop application tailored for Mac OS (versions 10.6-10.10). The application offers a suite of tools for optimizing system performance, including file cleaning, software updating, and security enhancements.
Responsibilities:
Crafted an intuitive and responsive user interface, employing UI animation to enrich user interaction.
Take part in implementing essential features such as file deletion and duplicate searching, bolstering the application’s utility from UI side of the job
Ensured the application’s compatibility across different Mac OS versions, focusing on a consistent user experience.
Conducted extensive unit testing to maintain high standards of code quality and application stability.
Tech: C#, .Net 4.0+, XamMac & MonoMac libraries, COCOA, CSS3, HTML5, UI animation, Javascript, JQuery.


## Education
### Bachelor's degree in Economic cybernetics
Kyiv National University of Technologies and Design (KNUTD)
Jan 2013 – Jan 2017


## Contact & Social
- LinkedIn: https://linkedin.com/in/annaumenko

---
Source: https://flows.cv/anastasiia
JSON Resume: https://flows.cv/anastasiia/resume.json
Last updated: 2026-03-22