Frontend
Next.jsReactAngularTypeScript
My Accenture experience
Ex-Accenture, now Freelance Full Stack Developer
From Accenture enterprise delivery to freelance full-stack work focused on product, performance, and execution. Today I bring that foundation into leaner, faster, and sharper builds.
Dario Marco BelliniFull Stack Developer
5+ yrsCareer
AccentureEnterprise
May 2021 - Jan 2026·Full Stack Developer
Dimensione 4Now
Jan 2026 → present·Freelance Full Stack
Core stack
Next.js
React
TypeScript
Python
PostgreSQL
Docker
Flutter
Angular
Node.js
Enterprise → Freelance
Product & delivery
In breve
Looking for a freelance developer to join a project or work alongside your team? I'm Dario Marco Bellini: I handle everything, from the part users see to the part running on the servers, using current tools like Next.js, React, TypeScript, Node, WordPress and Flutter. You talk to the person who writes the code, not a middleman: honest estimates, clear timelines and no hidden agency costs. I can start quickly, fit into your existing processes and hand you clean code that stays yours. Send me a few lines about your project and I'll tell you right away how I can help and how long it will take.
Technologies I Work With
Real-world stack used across enterprise projects, custom platforms, and high-complexity systems.
Backend
PythonFastAPINode.js
Infrastructure
DockerKubernetesVPS
Data
PostgreSQLTimescaleDBRedisCouchbase
AI
LangChainLangFuseRAG systems
3D & Visualization
Three.jsReact Three FiberBlender
Projects I worked on
Timeline of projects with role, stack, problem, implementation, and technical impact.
Digital Twin Platform
Front-End Developer
ReactThree.jsPotreeWebODMAWS SageMaker
Problem: Heavy point-cloud rendering with unstable frame rates and poor 3D navigation quality.
Action: I redesigned rendering and asset flow with Potree + Three.js, optimizing LOD strategy and camera interactions.
Impact: More stable 3D navigation, lower latency, and better visual quality on complex industrial datasets.
Connected Industrial Worker
SaipemFull Stack Developer
C#XamarinJava Spring BootCouchbaseKubernetesMinIO
Problem: Recurring issues on industrial tablets, fragile reporting workflows, and unstable sync behaviors.
Action: I handled cross-platform debugging, optimized N1QL queries, and hardened PDF/Excel reporting pipelines.
Impact: Higher application stability, fewer operational blockers, and improved field reliability.
AI Assistant Platform
Italian Firefighters (VVF)Backend & AI Developer
PythonFastAPIDockerPostgreSQLRedisLangChainLangFuse
Problem: SSE-based architecture was hard to integrate with enterprise REST ecosystems and public gateways.
Action: I converted the flow to RESTful APIs with polling and Redis-based state while preserving progressive UX.
Impact: Simpler enterprise integration, preserved user experience, and stronger operational robustness.
IoT Platform
Full Stack Developer
Android BLEESP32-S3Python FastAPIPostgreSQLTimescaleDBReactFirebase
Problem: No coherent end-to-end flow between embedded device, backend, and data dashboard.
Action: I built a full device-cloud-frontend integration with structured telemetry and time-series data foundations.
Impact: Funded PoC, later evolved into a startup path.
Digital Payments Platform
Nexi / pagoPAFull Stack Developer
AngularAngular MaterialJava Spring Boot
Problem: Low frontend modularity and high maintenance cost for UI components and PDF document workflows.
Action: I refactored Angular architecture, standardized UI components, and stabilized document generation flows.
Impact: More maintainable codebase, faster technical onboarding, and reduced frontend debt.
How I Approach Software Development
A pragmatic, product-oriented approach: less theoretical complexity, more technical clarity and real impact.
- Problem analysis before tech choices
- Scalable and realistic architecture
- Maintainable code with continuous refactoring
- Structured cross-team collaboration
- Constant focus on performance and UX
Freelance Vision - Dimensione 4
After an enterprise path, I now bring a leaner, more direct Dimension 4 approach to software products with strong technical value.
MVP developmentHigh-performance web platformsAI integrationWorkflow automationScalable backend engineering
Let's discuss itCompanies and brands I worked with
Professional contexts where I worked as a software engineer inside structured teams.
Trademarks belong to their respective owners.
Download Professional Profile
Download the full technical CV, the Vision & Mission document, or the updated CV with company experience.