Two days of real knowledge, amazing community, real impact. Engineering the future at the Science and Technology Park Niš.
Game of Codes is where the IT community comes together. No fluff. No generic talks. Just real stories, real experience, and experts who are building things every day.
From developers and architects to product leaders and founders this is the place where knowledge meets reality.
No theoretical noise. Our speakers are CTOs, leads, and senior engineers currently in the trenches of production.
Sessions focused on real problems, real solutions, and insights you can apply on Monday morning.
Meet developers, architects, founders, and engineering leaders you’d actually grab a beer with.
Java Champion & performance expert
Vlad Mihalcea is a Java Champion, creator of Hypersistence Optimizer and the Hypersistence Utils open-source project. He is passionate about performance tuning, technical leadership, system architecture, and database systems. He wrote hundreds of articles about Java, JPA, Hibernate and SQL on his blog, and he is the author of the High-Performance Java Persistence book and video course series.
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CTO, Raiffeisen Bank Serbia
Stefan Gavrilovic is CTO at Raiffeisen Bank Serbia, where he works at the intersection of technology, architecture, cloud, AI, and large-scale transformation. After seven years in banking technology, he remains as curious about new technologies as when he started. While helping shape the technology direction of the organization, Stefan stays close to engineering and continuously explores how emerging technologies can be applied in real enterprise environments. His focus is not only on what is new, but on understanding what truly matters, what can create value, and how organizations can turn technological change into meaningful progress.
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Staff Frontend Engineer
Faris Aziz is a Staff Frontend Engineer specializing in React, Next.js, monetization systems, and resilient web architecture. He has led teams in early-stage startups and scaling companies, built career ladders from scratch, and shipped systems used by millions. His work spans from greenfield builds to product engineering across Fintech, SaaS, Fitness, and Connected TV, with companies like Smallpdf, Fiit, Discovery, GCN, and Navro. Faris is also an award-winning community builder, co-founder of ZurichJS and ZurichJS Conf, a contributor to tools like Raycast, and someone who spends far too much time contemplating life's great questions, like why the build works on his machine but nowhere else.
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AI Engineer | International Keynote Speaker
Tejas Kumar is an international keynote speaker, best-selling author, and host of the developer-loved ConTejas Code podcast. With an engineering background spanning 25 years, from design and frontend to backend and DevOps, Tejas brings a broad and practical perspective to modern software development. Today, he shares talks with developer communities around the world, helping engineers do their best work and think more clearly about the craft of building software.
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AI Architect at VOLT | Infrastructure for Intelligence
Alessandro Vozza is an AI Architect at VOLT Datacenters, working at the intersection of cloud native infrastructure, sovereign AI, and platform engineering. With more than 20 years of experience in technology, his career spans cloud architecture, AI engineering, Kubernetes at scale, OpenStack private clouds, datacenter modernization, and Site Reliability Engineering. He has worked with enterprise organizations in regulated environments such as financial services, where security, compliance, and digital sovereignty are critical. Alessandro is a Golden Kubestronaut, holding the full set of CNCF and Linux Foundation Kubernetes certifications, as well as a Microsoft Certified Trainer and Linux Foundation Certified Trainer for CKA, CKAD, and CKS. Beyond building systems, he is deeply involved in developer communities, leading cloud native and AI initiatives, organizing community events, mentoring engineers, and helping teams turn Kubernetes and AI into resilient, sovereign infrastructure.
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CISO, Blue dot & Sourcico
Božidar Spirovski has over 20 years of experience in cybersecurity. He believes that cybersecurity is not just about technology but is integral to every aspect of an organization. By working closely with teams, Božidar aims to integrate cybersecurity features as a standard practice in product development. He also stresses the importance of leadership in fostering individual growth and providing consistent support. Božidar has held significant roles in various companies. He is the Chief Information Security Officer at Blue dot and Sourcico, with previous tenure in SaaS startups as well as large enterprises in the banking, telco and energy sectors. At EVN, H4 and Blue dot he played a pivotal role in setting up the InfoSec organizations and achieving approval by security teams of the largest companies in the world as customers. He also founded BeyondMachines.net, creating a cybersecurity threat awareness platform and mentoring engineering students.
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Head of Development, Sourcico
Wekoslav Stefanovski has more than two decades of professional developer experience using a variety of development technologies. He has been using C# since the first public beta, and has a long and fruitful love relationship with it. He has been using JavaScript since the previous millennium and has a long and fruitful love/hate relationship with it. Currently, he works at Sourcico as Head of Development. He is passionate about functional programming, static code analysis, compiler design and code quality metrics.
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Senior Software Engineer, 3 x Microsoft MVP, Creator of TheCodeMan
Stefan Đokić is a Senior Software Engineer, three-time Microsoft MVP, and the creator behind TheCodeMan, one of the growing .NET educational brands and communities. Throughout his career, Stefan has worked with Fortune 500 clients while building a strong presence in the developer community. Through his newsletter, educational content, and social platforms, he shares practical software engineering knowledge with an audience of more than 150,000 people. He is also deeply interested in AI and its impact on software development, running a dedicated AI community for .NET developers and exploring how developers can use the new generation of AI tools in their everyday work.
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Founder at Traceway
Dusan Stanojevic is the founder of Traceway, an observability platform focused on making software reliability effortless. He started coding in 2012 and, just two years later, joined the Silicon Valley startup Craftable as a founding engineer. Over the next decade, he helped grow the company from the ground up, scaling both the engineering team and the architecture, eventually becoming VP of Engineering and leading a 30+ person engineering organization within a 100-person company. In 2025, he founded a new startup that grew into a self-sufficient team of 10 within its first year. Today, Dusan is applying everything he has learned about building and scaling software teams, systems, and products into Traceway.
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Data Platform Lead, over99
Radovan Baćović is a Staff Data Engineer who lives, enjoys, and codes in Novi Sad, Serbia. He is part of the Data giants ambassador program: Snowflake Squad member and dbt spotlight member. An experienced data engineer and "wanna-be" the best bad conference speaker, he is always eager to discover new data technologies in a rapidly changing environment. He has a profound application development background in large international companies around the globe, and he strongly advocates for the open-source community and the open-core approach. Undoubtedly, he is a fervent data geek who is delighted to share his extensive experience with a broader audience. He was trapped in the Data world for 20 years. Passionate Brazilian Jiu-Jitsu practitioner.
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Founder, Adopt Intelligence
Dr. Miodrag Cekikj, founder of Adopt Intelligence, is a Microsoft MVP for Azure AI Foundry. With a PhD in Applied AI and a background in software engineering, he has served as a tech lead and solution architect, specializing in the Microsoft ecosystem. His work focuses on adopting intelligence into AI-first products and integrating AI into enterprise solutions. Miodrag is deeply involved in Applied AI and cloud-native trends, including the architecting of AI systems based on traditional machine learning and statistical modeling paradigms, as well as with large language models (LLMs) and large multimodal models (LMMs) within the rapidly evolving field of Generative AI and Agentic-driven flows. He is a passionate advocate for innovation, actively supporting global tech communities and educational centers, and always eager to drive progress in the tech landscape.
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Frontend Tech Lead, Altium
Pavel Myagkov took the scenic route from Linux driver development to becoming a Frontend Tech Lead at Altium. Different worlds, same lesson: whenever something looks like it should be easy, it probably isn’t. These days, he has traded some of his keyboard time for meetings, but still finds plenty of excuses to dive into parsers, state machines, complex frontend problems, and technical rabbit holes with no obvious exit. Outside of engineering, Pavel experiments heavily with AI-powered productivity, constantly moving between Notion, Obsidian, and new tools in an endless attempt to build the perfect second brain.
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Software Developer, JetBrains · Ktor
Osip Fatkullin is a Software Developer at JetBrains, where he works on maintaining and improving Ktor, the Kotlin framework for building asynchronous server and client applications. He started his career as an Android developer before moving into technical leadership and mentoring, gradually developing a strong interest in developer tooling, automation, and engineering infrastructure. Over the years, Osip has spoken about build systems, workflow automation, and developer productivity, while also contributing to open-source projects. Today, his focus at JetBrains combines those interests with Ktor and a broader mission: making developers’ lives easier through better tools, workflows, and infrastructure.
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Senior Test Consultant at Endava, Security Engineer
Ivan Avdić is a Senior Test Consultant at Endava and a security engineer with more than 10 years of experience working on complex software systems. His expertise includes security testing, penetration testing, and secure code review, with a strong focus on integrating security into everyday development and QA practices. Through close collaboration with development and QA teams, he helps introduce security standards, improve product security, and automate security-related processes. As Regional Security Community Lead at Endava, Ivan is passionate about knowledge sharing, security education, and helping engineering teams make security a practical part of the software development lifecycle.
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Associate Professor & Founder of Visual Technologies Laboratory
Dr. Stevica Cvetkovic is an Associate Professor at the Faculty of Electronic Engineering in Niš, where he founded and leads the Visual Technologies Laboratory. With more than 15 years of experience in software engineering, computer vision, and applied AI, he has led industrial R&D projects across autonomous driving, healthcare, and generative AI. His work includes an ADAS system for autonomous vehicles, an AI assistant for healthcare, and a video generation platform. He has co-authored more than 70 scientific publications and previously served as Head of Innovation at an IT company with more than 100 employees.
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Internationally recognized speaker, author & performance expert
Understand what really happens under the hood, solve the most common performance bottlenecks, and design high-performance, data-intensive Spring applications.
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The companies backing Game of Codes 2026 — and putting their engineers in the room.
More than a venue. A partner in building Niš as a stronger technology hub.
Game of Codes 2026 is hosted in partnership with Science and Technology Park Niš — bringing engineers, companies, students, founders and technology leaders together under one roof.
Our shared goal is simple: create more opportunities for knowledge, connection and growth, and help strengthen the technology ecosystem in Niš and the wider region.
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