Nemanja Stefanovic, Developer in Belgrade, Serbia
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Nemanja Stefanovic

Verified Expert  in Engineering

Software Developer

Belgrade, Serbia
Toptal Member Since
September 10, 2019

Nemanja is a motivated software engineer with excellent technical and problem-solving skills. Recently, he's worked on different projects in the Office natural language team at Microsoft—across all product aspects from the design, coding, testing, and validation of back-end service APIs. Nemanja is interested in client/server apps and specializes in .NET technologies and also works with the Java technology stack.


ContractPod Technologies Limited
C#, .NET, .NET Core, Vue, REST APIs, Microsoft SQL Server, React...
Shyft Moving
.NET Core, Vue, MySQL, Elasticsearch, Azure, C#, .NET, AWS Lambda, Serverless...
ASP.NET Core, TypeScript, Redis, C#, .NET, APIs, CI/CD Pipelines...




Preferred Environment

Subversion (SVN), Git, Eclipse, Visual Studio, Windows, Linux Mint, .NET

The most amazing...

...project I've worked on is building high-performance online cache for document analysis, which enabled multi-paragraph analysis in Microsoft Word online.

Work Experience

.NET Full-stack Developer

2021 - 2023
ContractPod Technologies Limited
  • Developed features for batch processing (creating and editing) of contracts. Integrated it with SharePoint and used MQ for improved performance.
  • Developed a prototype app for translating batches of contract documents.
  • Improved the time taken for comment highlighting in documents by 3x.
Technologies: C#, .NET, .NET Core, Vue, REST APIs, Microsoft SQL Server, React, CI/CD Pipelines, Software Development Lifecycle (SDLC), Agile, Back-end

Software Engineer

2019 - 2022
Shyft Moving
  • Developed internal search APIs that used Elasticsearch instead of MySQL queries, speeding up search 5x to 10x depending on the query.
  • Developed a web app that automates pricing for certain types of moves.
  • Built a back-end solution for different flows through mobile and web applications.
Technologies: .NET Core, Vue, MySQL, Elasticsearch, Azure, C#, .NET, AWS Lambda, Serverless, APIs, Amazon Web Services (AWS), CI/CD Pipelines, Software Development Lifecycle (SDLC), Agile, HTML, Back-end

Software Engineer

2017 - 2019
  • Developed and maintained a web service that hosts and orchestrates Microsoft Office online-proofing tools (including spellers, contextual spellers, grammar, consistency checkers, acronyms, and so on).
  • Worked as part of a smaller sub-team and built an online cache that can store documents and metadata and analyze results from different analyzers. This enabled new scenarios for multi-paragraph and whole-document analysis.
  • Enabled a new resume classification scenario in Word Online using the above-mentioned online cache.
  • Implemented all monitoring and troubleshooting guidelines for on-call rotation.
Technologies: ASP.NET Core, TypeScript, Redis, C#, .NET, APIs, CI/CD Pipelines, Software Development Lifecycle (SDLC), Agile, HTML, CSS, Back-end

Software Engineer

2015 - 2017
Hewlett Packard Enterprise
  • Worked on the ZIS account, which provides (T24) core-banking services for Adikko (e.g., Hypo) Bank in four countries.
  • Created interfaces and integration for a core-banking solution (synchronous and asynchronous through web services, databases, or file/message-passing systems).
  • Built a Java application for generating different statements, automated emails, notifications, etc.
  • Developed an end-to-end new paying system that the bank introduced through a web service.
Technologies: jBASE, IBM MQ, T24, SQL, Java, APIs, Agile, HTML, CSS, Back-end, T24 Bank Software

Natural Language Cache

An online cache for documents that can store document content and metadata and analysis results from different analyzers. This enabled new scenarios for multi-paragraph and whole document analysis which previously wasn’t possible for Microsoft Office online products.

Technologies: C#, ASP.NET, Redis.

Implementation of a New Payment System

I enabled a new payment system in the core banking system through a web service.

Technologies: Java, IBM MQ, jBASE

Search API

I developed a search API which increased search speed 5x-10x depending on the query. I switched from MySQL queries to Elasticsearch. The search API was used internally to search for users and their data on a lot of parameters and filters.
Elasticsearch was used just for searching while MySQL was still used for data storage. In order for the search to work, I used Logstash to sync new data so that the search would work in almost real-time.
2010 - 2016

Bachelor's Degree in Computer Engineering and Information Theory

University of Belgrade - Belgrade, Serbia


Entity Framework, Vue, Free Weather API, Node.js, REST APIs, React


Visual Studio, Git, Subversion (SVN), IBM MQ, ELK (Elastic Stack)


.NET, ASP.NET, .NET Core, NestJS, ASP.NET Core, Spring, Hibernate


C#.NET, C#, Java, SQL, JavaScript, TypeScript, HTML, CSS


Databases, Microsoft SQL Server, Redis, MySQL, Elasticsearch, RavenDB




Eclipse, AWS Lambda, Linux Mint, Windows, Azure, Amazon Web Services (AWS)


APIs, Back-end, Software Development Lifecycle (SDLC), jBASE, T24, Serverless, CI/CD Pipelines, T24 Bank Software

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