Yurii

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YURII RUDNIEV [открыть контакты](см. выше в блоке «контактная информация»)
SENIOR .NET DEVELOPER
Ukraine

PROF I L E L ANGUAGE S
Senior .NET Developer with 7+ years of experience designing, English B2
modernizing, and supporting backend systems for healthcare, e- Ukrainian (Native)
procurement, SaaS, and integration-heavy domains.
Strong expertise in C#, .NET Core, ASP.NET Core, SQL Server,
S KI L L S
PostgreSQL, Entity Framework, Dapper, Redis, Docker, Azure
services, REST APIs, background jobs, messaging-based Backend:
integrations, and production troubleshooting. C#, .NET, .NET Core, ASP.NET
Core, ASP.NET, Web API, WPF
Experienced in healthcare/radiology integrations, MRI/CT and API & Integrations:
DICOM/PACS-related workflows, third-party APIs, payment flows,
REST API, gRPC, Webhooks,
webhooks, data migrations, legacy modernization, and production
Third-party integrations,
infrastructure.
Messaging-based
integrations, Twilio, Mandrill
Focused on backend architecture, system reliability, database
performance, scalable integrations, observability, and reducing Architecture:
operational risks in production environments. Clean Architecture, SOLID,
WORK E X PE RI E NCE OOP, Design Patterns, DDD,
Dec 2025 — Present Microservices, Event-driven
Senior .NET Developer — Lura(AI SaaS Platform, side project) architecture, Outbox pattern,
Architected and built an AI-powered SaaS platform from scratch Idempotency
using .NET 9, PostgreSQL, Docker, and clean backend architecture. Databases:
Designed backend modules for order processing, payment
MS SQL Server, PostgreSQL,
lifecycle, AI content generation, customer workflows, and
T-SQL, Entity Framework,
administration.
Dapper, ADO.NET, SQL
Integrated multiple AI providers and implemented webhook-
Profiler, Query Optimization
based payment/order lifecycle processing.
Built and maintained production infrastructure using VPS, Docker, Infrastructure:
Nginx, SSL, and containerized deployments. Docker, Redis, Azure Blob
Sept 2025 — Dec 2025 Storage, Azure Functions,
Senior .NET Developer at NDA (short-term contract) Azure Service Bus, VPS,
Delivered business-critical backend features for a production Nginx, SSL, Containerized
system under a short-term contract, ensuring stable releases and deployments
minimal disruption.
Observability & Reliability:
Improved production stability by fixing critical defects, reducing
recurring issues, and lowering operational risk. Serilog, ELK, Application
Added structured logging to improve observability, speed up logging, Monitoring,
troubleshooting, and support root-cause analysis. Production troubleshooting,
Improved maintainability of legacy backend modules by applying Critical bug fixing, Root-
cleaner implementation patterns within existing constraints. cause analysis
Designed and delivered healthcare integrations with MRI, CT, and
Frontend:
DICOM/PACS-related diagnostic imaging platforms used by ICU
and radiology departments. React.js, TypeScript, HTML,
Built third-party healthcare integration APIs for reliable data CSS
exchange between internal and external systems. Tools & Additional:
Acted as a technical contact for imaging vendors and healthcare
Git, TFS, DevExpress,
clients, reducing communication gaps during integration,
ScyllaDB, Web3, Solana, RPC
validation, and deployment.
May 2022 — Sept 2025
Senior .NET Developer at Luxoft
Implemented MongoDB to MS SQL Server data migration
functionality, improving data accessibility, reporting capabilities,
query performance, and long-term maintainability.
Led development of a system-wide unit measurement conversion
system, helping standardize data processing across the application
and reducing the risk of incorrect calculations.
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YURII RUDNIEV [открыть контакты](см. выше в блоке «контактная информация»)
SENIOR .NET DEVELOPER
Ukraine

Modernized legacy modules by applying clean code principles, improving readability, testability, and
maintainability of business-critical functionality.
Optimized SQL queries and stored procedures, reducing execution time for database-heavy
operations and improving overall system responsiveness.
Investigated complex bugs in legacy systems and converted findings into technical improvements
that influenced new feature design and reduced future defect risk.
Improved production stability by identifying bottlenecks, eliminating recurring defects, and
resolving critical issues in business-critical workflows.
Collaborated directly with clients on use case analysis, feature clarification, and technical feasibility,
reducing ambiguity before implementation and lowering the risk of rework.
Supported and trained new team members, accelerating onboarding and helping developers
become productive faster in a complex domain.
May 2020 — May 2022
Middle .NET Developer at E-Tender
Developed and supported backend functionality for an e-procurement / auction platform with business-
critical workflows related to bids, participants, notifications, and data processing.
Improved message distribution flows by transferring existing communication logic to new functionality,
increasing reliability and maintainability of user notifications.
Expanded user analytics distribution, improving data availability and helping business teams access
more relevant operational information.
Improved message-sending logic, reducing potential delivery issues and making user communication
more reliable.
Implemented backend features that supported auction workflows, platform operations, and internal
business processes.
Resolved critical bugs in production and legacy modules, improving system stability and reducing
support overhead.
Optimized SQL queries, stored procedures, and database-heavy operations, improving performance of
data-intensive workflows.
Worked with T-SQL, stored procedures, triggers, and backend application logic to support complex
business rules and legacy platform requirements.
Balanced new feature delivery with legacy system constraints, improving existing modules without
introducing unnecessary regression risk.
Aug 2018 — Apr 2020
Junior .NET Developer at AltexSoft
Contributed as a full-stack developer, delivering backend and frontend functionality for commercial
software products.
Implemented new features that supported business requirements and improved product functionality.
Fixed application defects, improving system reliability and user experience.
Developed T-SQL stored procedures, triggers, and optimized SQL queries to support backend data
operations.
Supported end-to-end development tasks, gaining hands-on experience in application architecture,
database development, and production-oriented software delivery.
Completed software development training at AltexSoft Lab and successfully transitioned into
commercial software development.

E DUCAT I ON
Master's degree in Computer Science, Kremenchuk Mykhailo Ostrohradskyi National University,
Kremenchuk
Sept 2020 — Dec 2021
Bachelor's degree in Computer Science, Kremenchuk Mykhailo Ostrohradskyi National University,
Kremenchuk
Sept 2017 — Jun 2020
Software developer courses from AltexSoft Lab
 [открыть контакты](см. выше в блоке «контактная информация»)
YURII RUDNIEV [открыть контакты](см. выше в блоке «контактная информация»)
SENIOR .NET DEVELOPER
Ukraine

KEY INITIATIVES AND BUSINESS IMPACT
Implemented PDF compression for image-heavy documents, reducing storage volume by ~87% — from
~112.5 GB to ~15 GB per year — and lowering Azure Blob Storage consumption, network transfer overhead,
upload/download time, and long-term infrastructure costs.
Led a small engineering team of 2–4 developers, managing task decomposition, estimates, code reviews,
resource planning, and predictable feature delivery.
Fixed a critical race condition in external access token handling by introducing Redis-based distributed
caching and locking, making token refresh safe across multiple backend instances.
Replaced an N+1 API request pattern with a backward-compatible bulk endpoint, reducing API calls,
backend/database load, and improving client-side loading performance.
Proposed UI-level image cropping before upload for field reports, reducing image size by ~2–4x and
lowering traffic, upload time, and storage usage.
Took ownership of recurring external integration failures by analyzing logs, identifying root causes, and
coordinating fixes with the partner team, improving reliability and reducing investigation time.
Improved delivery quality by identifying technical constraints, edge cases, and missing business rules during
refinement, reducing ambiguity and rework.
Proposed a User Permission Management UI instead of manual SQL updates, improving operational safety,
transparency, and reducing human error.
Improved internal reporting usability by proposing grouped report layouts that reduced visual noise and
made business analysis faster and more accurate.

SELECTED ACHIEVEMENTS
7+ years of commercial experience in .NET backend development.
Built and supported business-critical systems in healthcare, e-tender, SaaS, and integration-heavy domains.
Delivered healthcare integrations with diagnostic imaging platforms used by ICU and radiology
departments.
Implemented system-wide unit measurement conversion, improving data consistency and reducing
calculation risks.
Built MongoDB to MS SQL Server migration functionality, improving accessibility, performance, and
maintainability.
Optimized SQL queries, stored procedures, and database-heavy production workflows.
Built third-party integration APIs and supported direct vendor/client communication.
Developed an AI-powered SaaS platform from scratch, including architecture, infrastructure, deployment,
payments, and AI integrations.
Reduced infrastructure costs through image and PDF optimization initiatives.
Improved production stability through bug fixing, logging, root-cause analysis, and recurring defect
elimination.
Improved backend performance by replacing N+1 request patterns with bulk API endpoints.
Mentored new developers and contributed to engineering knowledge sharing.