Recommended expert

Borjanka N

Senior Developer

Borjanka N
Skopje, North Macedonia

Experience

Nov 2024 - Present
1 year 5 months

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.
Sep 2023 - Jun 2024
10 months

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.
Apr 2021 - Present
5 years

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.
Jan 2019 - May 2022
3 years 5 months

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.
May 2016 - May 2017
1 year 1 month

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).

Education
Banking and Finance
Agriculture
Utilities
Construction
Manufacturing

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).

Information Technology
Product Development
Business Intelligence
Customer Service

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

English
Advanced
Macedonian
Intermediate

Education

Oct 2011 - Jun 2014

"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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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Borjanka based?

Borjanka is based in Skopje, North Macedonia and can operate in on-site, hybrid, and remote work models.

What languages does Borjanka speak?

Borjanka speaks the following languages: English (Advanced), Macedonian (Intermediate).

How many years of experience does Borjanka have?

Borjanka has at least 8 years of experience. During this time, Borjanka has worked in at least 3 different roles and for 5 different companies. The average length of individual experience is 2 years and 8 months. Note that Borjanka may not have shared all experience and actually has more experience.

What roles would Borjanka be best suited for?

Based on recent experience, Borjanka would be well-suited for roles such as: Senior Developer, Senior Programmer, Medior Developer.

What is Borjanka's latest experience?

Borjanka's most recent position is Senior Developer at Proflexx.

What companies has Borjanka worked for in recent years?

In recent years, Borjanka has worked for Proflexx, Danfoss, BrightOffice CRM, and GreenGo.

Which industries is Borjanka most experienced in?

Borjanka is most experienced in industries like Education, Banking and Finance, and Agriculture. Borjanka also has some experience in Utility Services, Construction, and Information Technology (IT).

Which business areas is Borjanka most experienced in?

Borjanka is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Borjanka also has some experience in Customer Service.

Which industries has Borjanka worked in recently?

Borjanka has recently worked in industries like Education, Banking and Finance, and Agriculture.

Which business areas has Borjanka worked in recently?

Borjanka has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Borjanka's education?

Borjanka holds a Bachelor in Computer Science from "Goce Delcev" University.

Does Borjanka have any certificates?

Borjanka has 3 certificates. These include: Developing and Implementing Web Applications with Microsoft Visual C#™ .NET and Microsoft Visual Studio .NET, Development of Managerial Skills, and Introduction to Windows Azure.

What is the availability of Borjanka?

Borjanka is immediately available full-time for suitable projects.

What is the rate of Borjanka?

Borjanka's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Borjanka?

To hire Borjanka, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Market avg: 500-660 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.