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Mateja Civkaroski

@matejacivkaroski

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Software engineer at Zlatni Standard building a gold-trading app with KYC onboarding and buy/sell payments.

Serbia

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At Zlatni Standard, I’m building a full-stack mobile application for gold trading with a Flutter frontend and an ASP.NET Core backend. I built its KYC onboarding and payment system for buy/sell gold transactions.

At Hummingbird, I built and shipped backend services in C# and Python, designing gRPC interfaces within a modular service-oriented architecture. I also improved database query performance and added Redis caching and OpenSearch.

At Mathematical Institute SANU, I researched the Green Vehicle Routing Problem and implemented and benchmarked C++ metaheuristics against a reference method. At Vlatacom Institute, I designed a computer-vision pipeline and trained and optimized YOLO models in PyTorch.

My projects include a Java compiler front-end, xv6 kernel work, and a distributed store for text and images. I’m completing an MSc in Computational Finance at Union University, Faculty of Computing, Belgrade.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Zlatni Standard

May 2026 - Present (5 months)

Building a full-stack mobile application for gold trading with Flutter frontend, ASP.NET Core backend, and PostgreSQL/Redis data layer. Implemented KYC onboarding and payment system for gold transactions.

Flutter ASP.NET Core C#PostgreSQL Redis KYC Payment Systems

Software Engineer

Hummingbird

Sep 2025 - Mar 2026 (6 months)

Built and shipped backend services in C# and Python, designing gRPC interfaces within a service-oriented architecture. Improved query performance by redesigning database indexes and integrating Redis and OpenSearch for full-text search.

C#.NET Python fastAPI gRPC PostgreSQL MS SQL Server Redis OpenSearch

Research Intern

Mathematical Institute SANU

Jun 2025 - Sep 2025 (3 months)

Researched the Green Vehicle Routing Problem, implementing and benchmarking C++ metaheuristics including a General Variable Neighborhood Search against a reference METS on shared problem instances.

C++Meta Heuristics Optimization Green Vehicle Routing Problem

Research & Development Engineer

Vlatacom Institute

Dec 2023 - May 2024 (5 months)

Designed an end-to-end computer-vision pipeline for object detection, training and optimizing YOLOv7/YOLOv8 models in PyTorch with hyperparameter tuning. Used DINO Transformer and Meta Segmenter for advanced image processing.

Computer Vision PyTorch YOLOv7 YOLOv8 DINO Transformer Meta Segmenter Hyperparameter Tuning

IT Solution Engineer Intern

Siemens Energy

Oct 2023 - Nov 2023 (1 month)

Developed Oracle PL/SQL logic including stored procedures, triggers, and access controls, and optimized complex reporting queries.

Pl SQL Stored Procedures Triggers Query Optimization

Education

Degrees, certifications, and relevant coursework

Union University, Faculty of Computing, Belgrade

MSc, Computational Finance

2024 -

Pursuing an MSc in Computational Finance with coursework in Stochastic Calculus, Risk Management, Machine Learning, Financial Derivatives, and Fixed Income and Credit.