My name is Darko Nikolic I am programmer with 7 year of experience in game development. I have worked on games for multiple platforms(Windows, Mac, Android and IOS) both 2D and 3D games.

Education is my primary motivation. As an animator, interactive developer, and certified medical illustrator, I have the opportunity to teach through imagery, using a variety of media and platforms to communicate concepts related to the health sciences. My body of work includes anatomical illustrations, 2D pharmaceutical mechanism-of-action animations, 3D pathophysiology animations, interactive medical device demos, and educational applications for WebGL and iOS. My goal is to provide aesthetically appealing, medically accurate, and instructionally sound visual materials while ensuring a frictionless and rewarding experience for collaborators. Skills: * 2D & 3D Animation * 3D Modeling * Illustration * Graphic Design * Interactive Development * UI/UX Design * C# Coding * Web Development * Script Writing & Editing * Audio Recording * Sound Design

I am a Senior Software Engineer and QA Automation specialist with experience building reliable web applications, backend systems, automated testing frameworks, APIs, and cloud-based solutions. My expertise includes Python, JavaScript, Selenium, Playwright, PyTest, REST APIs, SQL, AWS, Docker, CI/CD, and AI-powered workflows. I have built automation platforms, integrated quality gates into deployment pipelines, validated complex data systems, and developed scalable business applications from the ground up. I can help with: • Full-stack and backend development • Test automation framework design • Web, API, database, and integration testing • CI/CD and cloud deployment automation • AI agents and workflow integrations • Performance testing and production troubleshooting I focus on clean code, clear communication, and delivering solutions that are reliable, maintainable, and aligned with business goals.

OVERVIEW I'm an Expert-Vetted (Top 1%) Fractional CTO and founder of Torchstack, an AI product studio. I help startups and mid-market companies make high-leverage technical decisions and ship real products. 100% Job Success on Upwork. 12 studio projects delivered. NVIDIA Inception Program member. WHO AM I? During my PhD training (AI x biomedical), I published 7+ papers in top-tier journals such as Nature Communications and secured $100K+ in NIH and DOE research grants. Since then, I've spent my career as a data scientist, software engineer, and technical lead - building AI/ML systems, deploying applications to production, and working with the latest and greatest in AI, including computer vision, large language models, and AI agents. Results from that work: payment anomaly detection saving >$100K/year for a government AI system. Drug discovery timelines cut by 6+ months in biotech R&D. 15+ startups guided from concept to market and funded. Technical orgs built from scratch to 10+ engineers. WORKING TOGETHER I work two ways, depending on what you need: • Advisory: You get me directly, 1:1. Technical strategy, data and software architecture, due diligence, investor prep, AI roadmap, and all. Best for founders with a team who need senior technical judgment to steer it. Typically 5-10 hrs/month at $120/hr. • Build: I architect the solution and bring in vetted Torchstack specialists (engineers, designers, data scientists) who execute under my direct oversight. I stay your single point of contact. Team rates are $60-$100/hr, depending on role. Most engagements start with a paid AI Strategy Assessment, which is a 2-week audit of your current systems with a prioritized roadmap. It's the fastest way for both of us to figure out what you actually need. Either way, I'm on every call, reviewing every deliverable, and owning the outcome. FAQs Q: What tech stack do you work with? A: We're stack-agnostic, and we choose what fits your stage and budget. Examples of tech stacks used in past projects include AI/ML (LLMs, computer vision, predictive analytics), Python, React/Next.js, Node.js, AWS/GCP/Azure, microservices, and data infrastructure. Q: What if we need to move fast? A: I have a vetted team ready to go. We've delivered full builds from kickoff to launch, and we run sprints with weekly demos, so you can follow progress. Q: What makes you different from other fractional CTOs? A: Three things: 1. I solve problems based on first principles, bringing in my research background and my previous experiences working with companies/startups. 2. I run an AI product studio, and we can go from strategy to shipped product without you managing additional contractors or vendors. 3. Our team balances using the latest-and-greatest in AI with internally-built processes that have been refined over each engagement, resulting in faster deliveries and higher quality outcomes. NEXT STEPS Let's book a free 15-minute strategy call to see how we can support your team and build together.

Level up your design project A Product Designer with 9+ years of design experience. Passionate about aesthetics and the human mind, I use my skills in order to help people achieve their goals. UI/UX & Product Design The best-curated designs build long-lasting confidence and trust in your product and brand. That’s why I create cutting-edge design interfaces that are custom, engaging, and memorable. Web & SaaS Design I focus efforts on building results-driven development environments that are optimized, responsive, and scalable. This ensures your products will remain stable and relevant. Mobile App Design Native and cross-platform apps that are innovative, unique, & support end-user needs. Digital Marketing Design Custom-tailored marketing strategies that boost awareness, credibility, and revenue Branding Intelligent digital strategy and a pragmatic and thoughtful approach to solving business calls deliver a successful framework for both you and your audience.

Senior Full Stack Agentic Dev | Project & Ops Manager | Published on Apple, Android & Huawei | Native, Web & FinTech apps | Neuro Divergent (I already think like the future) Let's hear how I can build your dream business or pet project. Make contact to find out more

🚀 Experienced WordPress and Laravel Full Stack Developer | Expert in Website Scaling and Optimization Greetings! I'm Sanchit, an accomplished Full Stack Developer with over 8 years of hands-on experience in the dynamic realms of WordPress and Laravel. Currently, I am spearheading critical operations for a prominent company, managing massive websites with finesse. My expertise extends across a spectrum of responsibilities, where I ensure not just functionality but optimal performance. 🛠️ Key Specializations: 🌐 WordPress and WooCommerce Mastery: - Proven track record in scaling WordPress websites across multiple servers, ensuring seamless performance even under heavy traffic. - Expertise in optimizing themes and plugins for enhanced functionality and improved user experience. 🔗 Database Expertise: - Proficient in replicating databases and utilizing HyperDB to intelligently distribute database loads, ensuring efficient and smooth operations. - Database optimization is my forte, enhancing overall website speed and responsiveness. 🚀 Performance Enhancement: - Dedicated to setting up caching and transients, leveraging Redis to keep websites dynamic and responsive. - Skilled in crafting solutions that enhance overall website speed and user satisfaction. 🔧 Other Skills: - Server Infrastructure: Proficient in setting up traditional servers and managing their configurations. - Cloud Services: Adept at utilizing AWS services such as EC2, EFS, S3, ECS, Fargate, and Route 52 for scalable and robust infrastructure. - Mobile App Development: Experienced in Android and iOS app development, creating seamless experiences for users on multiple platforms. - Programming Languages: Fluent in Python, utilizing it for diverse functionalities. - Automated Testing: Skilled in using Selenium for efficient automated testing. - Monitoring and Analytics: Proficient in K2 Grafana for comprehensive monitoring and analytics. 💼 Why Choose Me: - Proven Track Record: Successfully managing massive websites for Hilton Web Design with demonstrable achievements. - Efficiency and Scalability: Expertise in scaling and optimizing websites for peak performance. - Versatility: A wide array of skills to cater to all aspects of web and app development. Let's collaborate and elevate your projects to new heights! Feel free to reach out, and together, we can turn your web development visions into reality. Thank you for considering my profile! 🌟

I'm a senior full-stack engineer with 7+ years of experience building production-grade web apps, cloud backends, and desktop applications. I work primarily in: - Frontend: React, Next.js, TypeScript - Backend: Node.js, NestJS, GraphQL, REST APIs - Cloud: AWS (Lambda, DynamoDB, API Gateway, CDK, CloudWatch) - Desktop: Electron, macOS signing & notarisation Recent work includes a sole-technical-lead role on an Electron + AWS platform for Sonos, features that generated $4M in first-year revenue, and an e-commerce optimisation that drove an 800% sales increase. I'm comfortable owning end-to-end delivery, collaborating across PM, design, and stakeholders, and integrating AI-assisted workflows to move faster. Available for part-time, full-time, and contract engagements.

Internationally-known Sr. Software Developer/Architect/Manager with a wide range of experience in everything from mobile app creation on iOS (Apple iPhone & iPad) and Android to other platforms such as the back-end web services that support the mobile apps. Proven track record of developing high-quality software on time and within budget every time for small businesses and Fortune 500 companies including Google, Apple, MCI, Intel, and Verizon. Notable Achievements: * Inventor of 12 patents. * Inventor of both Voice over IP & Skype. * Legal strategist/expert witness for Sony in VoIP case. * Created Europe's first PC-to-Phone calling service. * Provided technical evaluation of a $4 Billion business deal for Qwest. * Created a crime analysis system for Police Departments. * Created high-traffic e-commerce websites integrated with vendors and distributors using EDI. * Created an assembly-line software system for a high-end hardware repair company. * Co-created Walmart's in-store television broadcasting system. * Created mobile apps for customer order management. * Added barcode scanning functionality to several mobile apps. * Created Yellow Pages mobile app for large phone book publisher. * Created weather apps, news apps, social network apps, podcasting apps, and others. Specialties: Software architecture, development, and management roles. Technologies such as C/C++, Assembly, PHP, Laravel, Java, Javascript, Objective-C, C#, .NET, MS SQL Server, Oracle, MySQL, PostgreSQL, XML, HTML, Android, iPhone iOS, VoIP, H.323, SIP, Linux, Apache, Windows, Mac OS X, AJAX, and SOAP.

I build production AI systems that actually ship — not demos, not prototypes. Two examples running live right now: ApplyMongus (iOS app + FastAPI backend) — a Claude Batch API pipeline generating personalized content per user at scale, with per-tier model routing (Haiku for volume, Sonnet for quality), App Store Server API verification, encrypted credential storage, and abuse-metered usage caps. NateEatsHawaii (17,000+ monthly visitors, first-page Google rankings) — a bilingual EN/JA platform with a Claude-powered translation pipeline and a one-command publish script: automated face-blur for privacy, watermarking, image processing, sitemap generation, wired end-to-end. What I bring: — Production LLM integration: prompt engineering, batching for cost, model-tier routing by use case, spend guardrails — Full-stack: Next.js, Node.js, Supabase, PostgreSQL, Swift/SwiftUI — I ship solo, end-to-end — architecture through deployment through the metrics that prove it worked If you need an AI feature taken from idea to something real users touch — not just a proof of concept — let's talk about your project.