12/10/2025 updated

VL
100 % available

Senior Full Stack Developer

Sombor, Serbia
Worldwide
Bachelor of Information Technology
Sombor, Serbia
Worldwide
Bachelor of Information Technology

Profile attachments

Resume.pdf

Query PerformanceUser Experience (UX)Agile MethodologyArtificial IntelligenceApplication Performance ManagementArchitectureAtlassian JiraDatabasesDevOpsDjangoScalabilityPython (Programming Language)PostgreSQLNode.jsPerformance TuningPrism (Software)Next.jsTypeScriptWeb ApplicationsWorkflowsNetwork RoutersTailwindReact.jsFlaskDelivery PipelineDatabase OptimizationVue.jsIndexerBackendGitFigmaFront End Software DevelopmentApi DesignMicroservices
Next.js and React Development
Advanced expertise in Next.js (App Router) and React frameworks for building high-performance web applications with optimized frontend architectures and SSR implementation.

AI Integration and Development
Experience implementing AI-powered interfaces using Vercel AI SDK, OpenAI API, and vector embeddings to enhance user experiences and content discovery.

Database Optimization
PostgreSQL database expertise with advanced knowledge of indexing, schema optimization, and query performance tuning to significantly reduce response times.

Frontend Technologies
Proficiency in modern frontend technologies including TypeScript, Vue.js, Tailwind, and shadcn for building consistent and maintainable UI components.

Backend Development
Strong backend skills with Node.js, Express, Python, Django, Flask, and Prisma for creating robust server-side applications.

Microservices Architecture
Experience migrating monolithic platforms to microservices architectures to improve system scalability and reduce deployment downtime.

Performance Optimization
Expertise in clean architecture, SSR, caching strategies, and database indexing to enhance application performance and user experience.

DevOps and Collaboration
Proficient with Git, CI/CD pipelines, Agile methodologies, Jira, and Figma for efficient development workflows and cross-functional collaboration.

Experience

Professional experience5 - 10 years
Freelancer since2014

Languages

EnglishNative speaker

Project history

Lead Full Stack Engineer

PROACTIVE TECHNOLOGY MANAGEMENT
  1. Designed and implemented an AI-powered chat interface using Next.js 15 App Router and Vercel AI SDK, improving response accuracy by 35%.
  2. Built an interactive onboarding flow that streamlined user setup, increasing activation rates by 40%.
  3. Optimized Postgres database queries through indexing and schema improvements, reducing response times by 50%.
  4. Led technical strategy discussions with product managers and designers, prioritizing features based on impact and feasibility.

AI Developer

AGENCY ANALYTICS
  1. Developed a modular component system with shadcn and Tailwind, improving design consistency and reducing frontend development time by 45%.
  2. Implemented AI-powered search functionality using vector embeddings and OpenAI API, enhancing content discovery by 30%.
  3. Refactored legacy authentication system with JWT and Firebase, strengthening security and reducing unauthorized access incidents by 90%.
  4. Collaborated with cross-functional teams to launch real-time dashboards that improved data visualization for end users.

Senior Software Engineer

CROP.PHOTO
  1. Migrated a monolithic platform to a microservices architecture, improving system scalability and reducing deployment downtime.
  2. Implemented dynamic SSR and code-splitting in a Next.js application, reducing first-page load times by 50%.
  3. Designed and maintained Postgres schemas, optimizing database performance and reducing query execution times.2
  4. Integrated AI-driven content recommendations, boosting user engagement by 25%.

Frontend Developer

ATARIM
  1. Built a real-time event-tracking system using Node.js and Postgres, enabling businesses to monitor user interactions effectively.
  2. Created reusable UI components following Atomic Design principles, reducing frontend maintenance overhead.
  3. Developed REST APIs for a high-traffic web platform, ensuring seamless data exchange between frontend and backend.
  4. Optimized caching strategies, reducing server load and improving application speed.

Junior Web Developer

PLANET S.A.
  1. Assisted in developing a job-matching platform, using React and Node.js, enhancing candidate-job pairing accuracy.
  2. Refactored existing frontend codebase, improving maintainability and reducing bugs by 30%.
  3. Worked on database optimizations, reducing query response times through proper indexing.
  4. Contributed to API integrations, connecting third-party services with internal systems.

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