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I am a skilled software engineer and project manager with hands-on experience designing and developing secure file sharing and collaboration platforms used by law firms, accountants, and government agencies worldwide. I have expertise in implementing role-based access control systems, optimizing contact management, and automating bulk operations to improve efficiency and reduce server load. My passion extends to AI-powered fintech chatbot development where I integrated IBM Watson AI, Apache Lucene, and natural language processing to deliver accurate financial law information. As a co-owner of NegativE zone Comics, I transformed a struggling retail business into a profitable operation with consistent monthly revenue, modernizing the e-commerce site and spearheading digital marketing strategies. I am fluent in English, conversational in Serbo-Croatian, and currently improving my German.…I am a skilled software engineer and project manager with hands-on experience designing and developing secure file sharing and collaboration platforms used by law firms, accountants, and government agencies worldwide. I have expertise in implementing role-based access control systems, optimizing contact management, and automating bulk operations to improve efficiency and reduce server load. My passion extends to AI-powered fintech chatbot development where I integrated IBM Watson AI, Apache Lucene, and natural language processing to deliver accurate financial law information. As a co-owner of NegativE zone Comics, I transformed a struggling retail business into a profitable operation with consistent monthly revenue, modernizing the e-commerce site and spearheading digital marketing strategies. I am fluent in English, conversational in Serbo-Croatian, and currently improving my German.

Stefan Nedeljkovic

Developer, Project Manager, AI Engineer, +4

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I am a skilled software engineer and project manager with hands-on experience designing and developing secure file sharing and collaboration platforms used by law firms, accountants, and government agencies worldwide. I have expertise in implementing role-based access control systems, optimizing contact management, and automating bulk operations to improve efficiency and reduce server load. My passion extends to AI-powered fintech chatbot development where I integrated IBM Watson AI, Apache Lucene, and natural language processing to deliver accurate financial law information. As a co-owner of NegativE zone Comics, I transformed a struggling retail business into a profitable operation with consistent monthly revenue, modernizing the e-commerce site and spearheading digital marketing strategies. I am fluent in English, conversational in Serbo-Croatian, and currently improving my German.…I am a skilled software engineer and project manager with hands-on experience designing and developing secure file sharing and collaboration platforms used by law firms, accountants, and government agencies worldwide. I have expertise in implementing role-based access control systems, optimizing contact management, and automating bulk operations to improve efficiency and reduce server load. My passion extends to AI-powered fintech chatbot development where I integrated IBM Watson AI, Apache Lucene, and natural language processing to deliver accurate financial law information. As a co-owner of NegativE zone Comics, I transformed a struggling retail business into a profitable operation with consistent monthly revenue, modernizing the e-commerce site and spearheading digital marketing strategies. I am fluent in English, conversational in Serbo-Croatian, and currently improving my German.

Available to hire

I am a skilled software engineer and project manager with hands-on experience designing and developing secure file sharing and collaboration platforms used by law firms, accountants, and government agencies worldwide. I have expertise in implementing role-based access control systems, optimizing contact management, and automating bulk operations to improve efficiency and reduce server load.

My passion extends to AI-powered fintech chatbot development where I integrated IBM Watson AI, Apache Lucene, and natural language processing to deliver accurate financial law information. As a co-owner of NegativE zone Comics, I transformed a struggling retail business into a profitable operation with consistent monthly revenue, modernizing the e-commerce site and spearheading digital marketing strategies. I am fluent in English, conversational in Serbo-Croatian, and currently improving my German.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Croatian

Advanced

German

Beginner

Serbian

Advanced

Work Experience

Software Engineer at Titan File Inc.

March 1, 2022 - Present

Designed and developed new features for a secure file sharing and collaboration platform used globally by law firms, accountants, and government agencies. Implemented Role-Based Access Control (RBAC) with nested roles and multi-assignment capabilities similar to AWS IAM. Optimized and redesigned the contact management system to reduce load times and server traffic. Developed a bulk operations feature that significantly reduced task completion time and dependence on support and engineering teams. Researched, designed, and implemented automated messaging features to comply with regulatory standards across global jurisdictions. Conducted technical interviews, led QA efforts, and improved CI/CD pipelines, reducing test time by 25%.

AI-Powered Fintech Chatbot Developer at Website

September 30, 2019 - September 2, 2025

Developed a Java Spring Boot web service enabling users to ask questions about fintech and Canadian financial laws through an AI-driven chatbot, achieving 4th place out of 24 competitors. Integrated IBM Watson AI, Apache Lucene, and Natural Language Processing to parse user queries, extract key terms, and improve system accuracy over time. Built an analysis tool using web scraping and NLP to determine relevant information for user queries.

Co-Owner at NegativE zone Comics

February 1, 2024 - Present

Transformed a struggling retail business into a profitable operation with consistent $30K+ monthly revenue and ongoing growth. Managed multiple concurrent projects including a full store reorganization, introduction of formalized workflows, and inventory management systems. Redesigned and modernized the e-commerce site, driving significant growth in online sales. Introduced digital marketing initiatives including email marketing, loyalty programs, and social media campaigns. Managed supplier relations, procurement, and analytics to optimally direct funds.