Borjanka N
Senior Developer
Experience
Senior Developer
Proflexx
- The customers for these projects operate in the certification sector for construction companies.
- All data collected from the ILIAS system is integrated into Power BI applications.
- Development of multiple enterprise Power BI applications for customers in the construction certification sector.
- Designed and implemented complex DAX calculations enabling management-level reporting and daily progress monitoring.
- Built reports with advanced filtering, multilingual support, and user authentication.
- Collaborated with stakeholders to translate business requirements into technical reporting solutions.
- Ensured data consistency, performance, and maintainability across multiple reporting solutions.
Senior Programmer
Danfoss
- Senior developer on a large-scale enterprise desktop application deployed to ~5,000 users.
- Led technical work on modernizing the application from WPF to Blazor, including UI/UX redesign and backend restructuring.
- Contributed to splitting UI and backend concerns, enabling easier upgrades and future scalability.
- Supported database evolution and backward compatibility during system upgrades.
- Acted as a senior technical team member, contributing to architectural decisions and implementation strategy.
Senior Developer
BrightOffice CRM
- Senior developer on a sector-specific SaaS CRM platform for lenders, brokers, and training providers.
- Designed and maintained secure, API-driven SaaS architecture using ASP.NET Core and RESTful services.
- Led modernization of a large monolithic system into service-oriented and event-driven components.
- Implemented authentication and authorization mechanisms using claims-based security and token-based access.
- Participated in penetration testing, security reviews, and OWASP-aligned remediation efforts.
- optimized Entity Framework Core queries and database performance for high-traffic workloads.
- Collaborated closely with Product Owners on architectural decisions, risk analysis, and delivery planning.
- Supported CI/CD pipelines in Azure DevOps and worked alongside DevOps teams in cloud environments.
Senior Programmer
GreenGo
- Senior developer on an IoT-enabled analytics platform collecting data from multiple field-installed sensors.
- Designed and implemented backend services for high-frequency, near-real-time telemetry ingestion and processing.
- Worked with MQTT protocol for reliable sensor-to-backend communication.
- Designed and optimized geospatial data storage and queries using PostGIS.
- Integrated Google Maps for visualization of sensor data and turf field locations.
- Developed analytical reports enabling customers to optimize water, electricity, and fertilizer usage.
- Focused on scalability, performance, and data integrity in real-time processing pipelines.
Medior Developer
CRM Application
- Development of business management modules (CRM, finance).
- Implemented authentication and authorization for secured views.
- Built maintainable Web Forms applications with AJAX extensions.
- Gained solid experience in enterprise web application lifecycle management.
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Education (5 years), Banking and Finance (5 years), Agriculture (3.5 years), Utilities (3.5 years), Construction (1.5 years), and Manufacturing (1 year).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (8 years), Product Development (8 years), Business Intelligence (4.5 years), and Customer Service (1 year).
Summary
Senior Software Engineer / Technical Lead with 10+ years of experience designing, modernising, and operating mission-critical backend systems within complex, regulated, and data-intensive environments. Strong expertise in C#/.NET, cloud-native Azure architectures, and distributed systems, with a proven track record of rebuilding legacy platforms into scalable, high-performance services.
Experienced in real-time and near-real-time data processing, API-driven platforms, and secure system design. Comfortable working closely with trading, analytics, risk, data engineering, and DevOps teams, delivering reliable software in time-sensitive operational contexts. Strong communicator and highly effective in remote, cross-functional teams.
Skills
Backend & Distributed Systems
- C# / .Net (Core, .Net 8), Asp.net Core
- Restful Apis, Minimal Apis, Api Versioning
- Distributed Systems & Service-oriented Architectures
- Microservices & Integration Patterns
- Event-driven Architectures And Messaging
- Legacy Monolith Modernisation
- Performance-critical Backend Services
Cloud & Devops (Azure)
- Microsoft Azure (App Services, Azure Sql, Monitoring)
- Azure Devops (Repos, Ci/cd Pipelines)
- Cloud-native Design Principles
- Infrastructure As Code Exposure (Arm / Terraform)
- Secure Cloud Application Design
- Collaboration With Devops And Cloud Architecture Teams
Real-time Data & Observability
- Near-real-time And High-frequency Data Processing
- Event-based And Telemetry-style Pipelines
- Azure Application Insights & Azure Monitor
- Performance Profiling And Optimisation
- Diagnostics Of Distributed Systems
Security & Compliance
- Oauth 2.0, Jwt, Claims-based And Role-based Authorisation
- Asp.net Core Identity
- Secure Api Development (Owasp Top 10 Awareness)
- Participation In Penetration Testing And Security Audits
- Auditability, Access Control, And Secure Data Handling
Databases & Data
- Sql Server (Advanced Schema Design, Performance Tuning)
- Postgresql, Mysql
- Mongodb, Cosmos Db (Exposure)
- Transactions, Concurrency Control, Schema Versioning
Languages
Education
"Goce Delcev" University
Bachelor of Informatics · Computer Science · Štip, North Macedonia
Certifications & licenses
Developing and Implementing Web Applications with Microsoft Visual C#™ .NET and Microsoft Visual Studio .NET
Development of Managerial Skills
Introduction to Windows Azure
Profile
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