Dorjan Dika

Senior Software Engineer | AI Engineering Specialist

Transforming engineering velocity through AI innovation
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About Me

Passionate about leveraging AI and automation to solve complex technical challenges

Senior Software Engineer transforming engineering velocity through AI innovation. I create "multiplier effects"—building AI-Agentic workflows that reduced payment integration time by 99% (from 2+ sprints to few hours) at HelloFresh. With 10+ years architecting scalable FinTech and e-commerce systems (HelloFresh, AutoScout24, NTT DATA), I combine deep technical expertise with AI-first thinking. My focus: empowering entire engineering organizations through intelligent automation, not just solving individual problems. Daily practitioner of LLMs, RAG systems, and AI-Agentic Orchestration. Offering AI training and consulting to help businesses unlock 10x productivity gains (English/Italian).

Ready to unlock AI-driven productivity for your team?

Let's discuss how AI-Agentic workflows can transform your engineering velocity.

Get in TouchConnect on LinkedInBook a Discovery Call

Experience

Building scalable systems and leading technical initiatives

Senior Software Engineer | Payments Tribe

HelloFreshBerlin, Germany

Feb 2024 - Present

Development and optimization of global payment solutions for the HelloFresh Group, encompassing multiple brands such as Factor, EveryPlate, and others.

Key Achievements:

Implemented secure payment methods and tokenization to enhance recurring charge efficiency and reduce friction in checkout and reactivation flows

Integrated Adyen and Braintree payment gateways, optimizing transaction processing

Collaborated with cross-functional teams to improve net conversion rates by designing a seamless payment experience

Built scalable, high-performance backend services using Golang, Kotlin (Spring Boot), AWS, and Kafka, supporting fault-tolerant and reliable global payment operations

Architected AI-Agentic workflows reducing payment integration time by 99% (from 2+ sprints to few hours)

Established weekly observability culture reducing alert fatigue for on-call engineers

Technologies:
Golang
Kotlin
Spring Boot
AWS
Kafka
Adyen
Braintree
PostgreSQL
Microservices

Senior Software Engineer

AutoScout24Berlin, Germany

Apr 2022 - Feb 2024

Played a key role in the development of AS24 Smyle, an innovative e-commerce platform for buying and selling used cars, from initial development to public launch and achieving break-even.

Key Achievements:

Contributed across multiple teams, including Order Fulfillment, Payments and Insurance, and Checkout

Designed and implemented a robust payment architecture, integrating providers such as Stripe and Santander

Developed AI chatbot for car inquiries using RAG-based inference on vehicle documentation and customer service FAQ, reducing support tickets by 30% and increasing user engagement by 25%

Developed scalable microservices using Java (Spring Boot) and deployed them in cloud environments

Collaborated with cross-functional stakeholders to align technical solutions with business goals

Mentored junior engineers, fostering a collaborative environment focused on best practices

Technologies:
Java
Spring Boot
Stripe
Santander
Microservices
AWS
PostgreSQL
Kafka

Senior Software Engineer

Valsight GmbHBerlin, Germany

Jan 2019 - Mar 2022

Worked with R&D team members to design and develop robust solutions in Financial Sector to meet client requirements for functionality, scalability and performance.

Key Achievements:

Collaborated effectively with members of product management to implement product requirements

Highly involved in project planning, estimation, scheduling, prioritization and coordination of technical activities

Mentored junior and student team members

Designed scalable solutions optimized for performance and reliability

Technologies:
Java
Groovy
Grails 3.0
Restful Web Services
Hibernate
PostgreSQL
MSSQL
Jenkins

Java Backend Developer

NTT DATA ItaliaRome, Italy

Jun 2016 - May 2018

Worked as a software engineer in several web based projects for SOGEI (Italian Ministry of Economy and Finance).

Key Achievements:

Requirement analysis, design, and implementation of enterprise applications

Developed robust backend solutions for government projects serving millions of citizens

Implemented complex business logic using Java EE technologies

Technologies:
Java 7
Java 8
JSF
EJB
JPA 2.0
Hibernate
Oracle 12
PL/SQL

Revenue Assurance Analyst and Developer

NTT DATA ItaliaRome, Italy

Jan 2015 - May 2016

Revenue Assurance Transformation - re-engineering of all Revenue Assurance processes for main Italian Telco (Telecom Italia) using RAID 7.0 (WeDo) platform.

Key Achievements:

Analysis of technical and functional requirements and design of technical solution

Implementation and configuration of RAID 7: ETL tool, validation, reporting and dashboard web

Test the functionality of the software product

Developed automated reporting dashboards for revenue tracking

Technologies:
Java EE
C
Oracle 11
PL/SQL
LIFERAY
ETL

AI & Innovation

Pioneering AI-Agentic workflows, RAG systems, and machine learning solutions—both in production environments and personal explorations

AI-Agentic Workflows

Professional

🤖

Pioneered AI-Agentic Engineering Workflows

Architected and deployed a two-stage AI-agentic workflow (Analyzer & Builder) to automate the end-to-end implementation of new payment methods across 14+ distributed services at HelloFresh.

Technologies:
Python
LangChain
OpenAI API
RAG
Golang
Kafka
Impact:
99% reduction

Planning efficiency: reduced architectural analysis from 2+ sprints to few hours

~1 quarter → ~3 hours

Execution velocity: compressed build phase from 1 full quarter (5+ engineers) to ~3 hours automated

View on GitHub

RAG & LLM Systems

Personal Project

💬

Local LLM Chatbot Template

A production-ready chatbot template with full RAG (Retrieval-Augmented Generation) capabilities. Features a complete microservices architecture with 6 services including FastAPI backend, ChromaDB vector store, and Ollama LLM integration.

Technologies:
Python 3.13
Streamlit
FastAPI
Ollama
ChromaDB
Docker
LLaMA 3.2
Impact:
Open Source

Production-ready template for building private, local AI chatbots

6 Microservices

Full RAG pipeline with semantic search and document Q&A

View on GitHub
Professional

🚗

AI Chatbot for Vehicle Inquiries

Developed an AI-powered chatbot at AutoScout24 using RAG-based inference on vehicle documentation and customer service FAQ, enabling natural language queries for car specifications and support.

Technologies:
Python
RAG
Vector Database
NLP
REST APIs
Impact:
30% reduction

Decreased support ticket volume through automated self-service

25% increase

Improved user engagement with instant, accurate responses

Machine Learning

Personal Project

ML Odds Detection System

A machine learning system that analyzes football betting odds movement to identify high-confidence opportunities. Features automated scraping, time-series tracking, feature engineering, and ML models trained on odds volatility and consensus patterns.

Technologies:
Python 3.10+
Scikit-learn
SQLAlchemy
Playwright
Pandas
SQLite
Impact:
End-to-End ML

Complete pipeline: data collection, feature engineering, model training, predictions

Privacy-First

Fully local execution with no cloud dependencies

View on GitHub

Technical Skills

A comprehensive toolkit for building modern, AI-powered applications

Languages & Frameworks
Python
TypeScript
JavaScript
Node.js
FastAPI
React
Next.js
AI & Machine Learning
Large Language Models (LLMs)
Retrieval-Augmented Generation (RAG)
Prompt Engineering
AI-Agentic Workflows
Ollama
OpenAI API
Scikit-learn
Backend & Databases
PostgreSQL
SQLAlchemy
ChromaDB
Vector Databases
REST APIs
Microservices
DevOps & Cloud
Docker
Docker Compose
Kubernetes
AWS
CI/CD
Grafana
Monitoring & Observability
Tools & Platforms
Git
GitHub
Jira
Confluence
Streamlit
Playwright
Uvicorn

Education & Languages

Academic background and multilingual capabilities

Education

Master of Science (MSc)
Computer Engineering

Università degli Studi di Roma Tre

Rome, Italy2013 - 2021

Specialized in software engineering, distributed systems, and advanced algorithms.

Bachelor of Engineering (BE)
Computer Engineering

Università degli Studi di Roma Tre

Rome, Italy2009 - 2013

Foundation in computer science, programming, and system architecture.

Certifications

The Complete Cloud Computing Software Architecture Patterns

Advanced patterns for cloud-native architectures

Rocking AWS Serverless - A Real World Guide

Comprehensive guide to AWS serverless technologies

Software Architecture & Design of Modern Large Scale Systems

Design principles for scalable distributed systems

Languages

Italian
Native

Native speaker with extensive professional and academic experience

Albanian
Native

Native speaker

English
Professional

Full professional working proficiency

Spanish
Elementary

Basic conversational ability

AI Training & Consulting Services

Empowering Italian businesses with cutting-edge AI knowledge

With 10+ years of software engineering experience and deep expertise in AI-Agentic workflows, I offer specialized training and consulting services to help Italian businesses leverage the power of artificial intelligence.

Native Italian Speaker

All training delivered in fluent Italian or English, tailored to your team's preference

Real-World Experience

10+ years implementing AI solutions in production at scale (HelloFresh, AutoScout24)

Proven Results

99% reduction in integration time through AI-Agentic workflows at HelloFresh

Ongoing Support

Post-training support and consultation to ensure successful implementation

AI Fundamentals for Businesses
1-2 days
In-person or online

Comprehensive introduction to artificial intelligence, machine learning, and their practical applications in business. Perfect for executives, managers, and teams looking to understand AI potential.

What you'll learn:
  • Understanding AI and ML fundamentals

  • Real-world use cases and ROI analysis

  • Identifying AI opportunities in your business

  • Ethical considerations and best practices

  • Hands-on demonstrations with popular AI tools

Target Audience: Business leaders, managers, and professionals
AI-Powered Development Workflows
1-2 days
In-person or online

Learn how to supercharge your development process with AI tools. From code generation to testing automation, discover how to achieve 10x productivity gains.

What you'll learn:
  • AI-assisted coding with GitHub Copilot, Cursor, and similar tools

  • Prompt engineering for developers

  • Automated testing and code review

  • Building AI-Agentic workflows

  • Practical examples from real projects

Target Audience: Software developers and engineering teams
Building AI Applications with LLMs
2-3 days
Hands-on workshop (in-person preferred)

Hands-on technical workshop on building production-ready AI applications using Large Language Models. Learn RAG systems, prompt engineering, and deployment strategies.

What you'll learn:
  • Understanding LLMs (OpenAI, Claude, local models)

  • Building RAG (Retrieval Augmented Generation) systems

  • Vector databases and embeddings

  • Prompt engineering and optimization

  • Cost optimization and production deployment

  • Building AI chatbots and assistants

Target Audience: Developers with Python/backend experience
AI Strategy & Implementation Consulting
Custom
Custom engagement

Custom consulting services to help your organization develop and execute an AI strategy. From use case identification to implementation roadmap.

What you'll learn:
  • AI readiness assessment

  • Use case identification and prioritization

  • Technology stack recommendations

  • Implementation roadmap and timeline

  • ROI projections and KPI definition

  • Team training and knowledge transfer

Target Audience: CTOs, Engineering leaders, Product managers

Interested?

Get in touch to discuss your AI training and consulting needs. I offer a free 30-minute consultation to understand your goals.

Book a free consultation