Nikola Radic

Delivered AI-powered assistants for healthtech and automation using OpenAI API, LangChain, and Pinecone. Built document summarization bots, contract analyzers, and semantic search tools to streamline client operations. Developed Next.js + FastAPI platforms with Supabase and TailwindCSS enabling rapid MVPs for startups. Integrated AI-driven UX features such as conversational navigation and smart auto-fill to boost user adoption. Created internal prompt-engineering and model-evaluation tools, reducing experimentation time by 30%. Deployed serverless backends on AWS Lambda, API Gateway, and S3 to optimize infrastructure costs. Advised startups on AI adoption strategies and delivered workshops on AI architecture and ethical AI practices.

Designed and built SaaS solutions for lead management, call tracking, and WhatsApp integrations using React, Node.js/Django, and PostgreSQL. Deployed cloud-native infrastructure on AWS/GCP with Kubernetes and Docker, ensuring high availability for telecom-grade workloads. Implemented CI/CD pipelines with GitHub Actions, Terraform, and Helm, reducing deployment times and minimizing downtime. Created REST and GraphQL APIs powering integrations with CRMs like Salesforce and HubSpot. Led architectural reviews and tool selection, standardizing practices across distributed teams. Ensured GDPR compliance, secure deployments, and centralized monitoring, reducing incident response times and meeting regulatory demands. Facilitated cross-border agile collaboration, driving predictable delivery in a fully remote environment.

Delivered backend microservices with Django and FastAPI for startup clients in fintech, healthcare, and IoT. Built secure REST APIs with OAuth2 and JWT, powering client applications with robust authentication. Tuned PostgreSQL and Redis clusters, reducing query times and improving scalability under high load. Automated workflows with Celery task queues, handling reporting, exports, and email campaigns at scale. Integrated third-party APIs such as payment gateways, CRMs, and messaging platforms, expanding client app functionality. Conducted security audits and code reviews, ensuring client systems adhered to OWASP and GDPR compliance. Mentored juniors on backend best practices, strengthening Ars Futura's engineering culture.