I'm a full-stack scala/web/mobile apps developer and system architect from Zagreb, Croatia. I have extensive experience in building MPV for startups, and providing tech support for midsized businesses. Regarding business domains, i had clients from Croatian public sector, energy industry, pharmaceuticals companies, online eduction, gaming etc...

10+ years as a professional in software engineering, from systems programming to large data-intensive applications. Fast learner. Highly motivated. Team player. OSS contributor. Extreme Ownership. Distributed systems. (Scala | Kafka | Akka | Kubernetes) Machine learning. (Python | Keras) System programming. (Linux | C | Rust)

I’m a full-stack software engineer with experience in both backend and frontend development. With a background in UI/UX design and QA, I focus on building reliable, user-friendly web applications that meet business needs. What I do: ▪️ Full-Stack Development: Build complete web apps using Node.js, Express, and React. ▪️ Backend: Work with APIs and databases like PostgreSQL, Supabase, MySQL, and MongoDB. ▪️ Frontend: Create modern user interfaces with React, HTML/CSS, Tailwind, and Material UI. ▪️ Design & Testing: Use my past experience in UI/UX and QA to design better user flows and ensure quality. ▪️ AI Tools: Integrate OpenAI and ChatGPT to automate content and enhance features. ▪️ Teamwork: Collaborate in Agile teams and stay aligned with business goals. My technical proficiencies: 💻 Languages: JavaScript, TypeScript, Scala 🗄️ Databases: MySQL, Supabase, PostgreSQL, MongoDB 📚 Frameworks & Libraries: React, Redux, Node.js, Express, Angular, Axios, Play 2/3 Framework, Akka, Silhouette, Swagger, JQuery, HTML, Chart.js, Summernote, OpenAI 🔗 ORMs: TypeORM, Sequelize, Prisma, Slick, ReactiveMongo 🎨 User Interface Styling: CSS, SASS/SCSS, Material UI, Bootstrap, Tailwind CSS 🧪 Testing Tools: Jest, ScalaTest, JUnit, Mockito, Selenium 🔧 Build & CI Tools: Webpack, SBT, Maven

Good day! I'm a java development expert with a strong experience at server side field. In recent years I have participated in many projects related to telecommunications and banking sector, advertising and data management. I try to use different software development approaches to keep balance between complicated technologies and reliability of software product. I am a well communicative, easy teachable and responsible person with analytical mind. My specialties: innovation software development, biometric security systems, cloud based payments, complex software design, distributed systems, server-side development.

I help businesses build scalable data and AI systems from high-performance data pipelines to GenAI powered applications and analytics platforms on GCP, AWS, Azure, Microsoft Fabric, and Databricks. With 7+ years of experience in data engineering and cloud architecture, I specialize in designing data-intensive systems that process large-scale data efficiently and turn it into actionable insights and intelligent automation. 🔹 What I Can Help You With Cloud Data Engineering & Big Data Systems End-to-end ETL/ELT pipelines on GCP, AWS, Azure & Databricks BigQuery, Redshift, Synapse, Microsoft Fabric Lakehouse Apache Spark / PySpark (Databricks, distributed processing) GCP Dataflow, Pub/Sub, Cloud Functions, Composer (Airflow) AWS Glue, Lambda, S3 | Azure Data Factory & Synapse Batch & real-time streaming pipelines (Kafka, event-driven systems) Data modeling (star schema, lakehouse & warehouse architecture) GenAI & AI-Powered Data Applications LLM integrations (ChatGPT, Claude, Gemini) GenAI-based data pipelines & intelligent workflows Natural Language → SQL / data querying systems AI copilots, automation tools & internal assistants Recommendation systems (e-commerce, product analytics) Analytics & Data Products Product analytics (GA4, user behavior, funnel analysis) Marketing attribution & performance analytics Business intelligence & reporting systems Data-driven strategy & decision support solutions 🔹 What Makes Me Different I don’t just build pipelines I design end-to-end data platforms that connect data engineering, big data processing, and GenAI into real business use cases. My focus: Scalable architectures (handling high-volume data workloads) Cost optimization (BigQuery, Databricks, cloud-native systems) Clean, reliable data models for analytics and AI 🔹 Tech Stack GCP: BigQuery, Dataflow, Pub/Sub, Cloud Functions, Composer AWS: S3, Glue, Redshift, Lambda Azure & Fabric: Data Factory, Synapse, Fabric Lakehouse Databricks & Big Data: Apache Spark, PySpark Core: Python, SQL, Airflow, Kafka GenAI: ChatGPT, Claude, Gemini 🔹 Typical Projects I Work On Building scalable data pipelines (APIs, GA4, ERP → Data Warehouse/Lakehouse) Designing cloud-native data platforms (GCP, AWS, Azure, Databricks, Fabric) Developing GenAI-powered tools (chatbots, automation, data assistants) Creating real-time and streaming data systems Implementing recommendation engines and analytics platforms If you're looking for someone who can design and build a scalable data platform or AI-driven solution tailored to your business, let’s connect.

I have PhD in Theoretical and Mathematical Physics. I am co-author or author of about 20 scientific papers. My second specialization is Data Science along with Big Data. I have also solid experience in Big Data tools like: Apache Spark, Apache Solr, Kafka, HBase, HDFS, Hive and others. I used numerous machine learning algorithms during my career like: principal component analysis, self-organized maps, k-means, k-nearest neighbours and also linear models like simple linear regression. I developed an algorithm to predict time series data using linear regression and Holt-Winters models. In my professional career in Physics (Astrophysics) I calculated tidal perturbations of Lares/Lageos satellite, constructed long range Hubble diagram for gamma-ray bursts.

Data is powerful — but only when it’s usable. I help businesses design and build AI-ready data platforms — from raw data ingestion to real-time analytics and intelligent insights. With 11+ years of experience in Data and Cloud ecosystems, I specialize in: ✔ Scalable Spark & Databricks pipelines ✔ Lakehouse architectures (Azure / AWS) ✔ Real-time streaming (Kafka, Spark Streaming) ✔ ETL modernization (Talend, Informatica → Cloud) ✔ ML-ready data engineering foundations Whether you need: A new data platform built from scratch Migration to Databricks or Cloud Performance optimization Data pipelines for AI/ML use cases I focus on writing clean, production-grade, scalable solutions — not quick hacks. Clients describe me as reliable, detail-oriented, and easy to work with. If you're looking for someone who understands both engineering depth and business outcomes, let's connect.

"Client satisfaction is our top priority!" I have a team of over 100 certified professionals, we help businesses across various industries with smart, efficient, and reliable solutions. We work with a wide range of tools and technologies, some of which are listed below, to make sure our clients get exactly what they need, done right the first time. 🧑‍💻Expertise ✌ ✅ Salesforce Clouds ➡ Sales | Service | Education | Community | B2B & B2C Commerce | Marketing | Health | Financial ✅ Microsoft Dynamics ➡ CRM | NAVISION | 365 | Business Central | AX | Azure ✅ SAGE ➡ Intacct | 100 | 300 | 50 | X3 | CRM ✅ NetSuite ➡ Finance | Manufacturing | Inventory | Order | Warehouse | Supply Chain | CRM ✅ Big Data ➡ Apache Spark | Data Engineering | Scala | Java | Python | Hive ✅ ServiceNow ➡ ITSM | ITOM | ITBM ✅ DevOps ➡ AWS | Jenkins | Azure ✅ Data Visualization ➡ Power Bi | Tableau | Oracle Bi | QlikView | Splunk | Sisense | ✅ Web Technologies ➡ PHP | Java | Node Js | Angular Js | React Js | .NET ✅ iPaaS Middleware ➡ Dell Boomi | Mulesoft | Jitterbit | Zapier | Workato | Celigo ✅ CPQ - Salesforce ➡ Apttus | Oracle ✅ Apttus ➡ CPQ | CLM | X-Author | Billing and Order Management ✅ Odoo ➡ Accounting | Inventory | Manufacturing | Sales | HR | eCommerce 🎓Certifications 🎓 🔝Marketing Automation 🥇Marketo Certified Associate 🥇Certified Pardot Specialist 🔝Microsoft Dynamics 🥇Microsoft Dynamics 365 Sales 🥇Certified Professional in Microsoft Dynamics D365 Finance 🥇Microsoft Certified Dynamics 365 Business Central Functional 🔝ServiceNow 🥇ServiceNow Administrator 🥇ServiceNow ITSM Implementation 🥇ServiceNow HRSD Implementation 🔝Salesforce 🥇Salesforce Certified Marketing Cloud Administrator 🥇Salesforce Marketing Cloud Email Specialist 🥇Salesforce Certified Administrator (SCA) 🥇Salesforce Certified Platform App Builder Certification 🥇Salesforce Certified Community Cloud Consultant Certification 🥇Salesforce certified JavaScript Developer 🥇Salesforce CRM Administrator 🥇Apttus CPQ Certification 🥇Salesforce Certified CPQ Expert 🥇Salesforce App Builder 🥇Apttus Quote-To-Cash 🥇Salesforce Platform Developer I 🥇Salesforce Platform Developer II 🥇Einstein Analytics Data Preparation Specialist 🥇Einstein Analytics and Discovery Insights Specialist 🥇Salesforce Certified Einstein Analytics and Discovery We have successfully completed over 500 technology projects and developed 200+ custom applications for various industries, including manufacturing, supply chain, sales, non-profit, government, IT, and others. Experience, expertise, and a commitment to deliver - our promise is to solve your business problems and exceed your expectations. ✍✉Let's connect to discuss your requirements. Thanks, Pratik

✅ AWS Certified Solutions Architect ✅ Google Cloud Certified Professional Data Engineer ✅ SnowPro Core Certified Individual ✅ Upwork Certified Top Rated Professional Plus ✅ The author of Python package for cryptocurrency market Currency.com (python-currencycom) Specializing in Business Intelligence Development, ETL Development, and API Development with Python, Apache Spark, SQL, Airflow, Snowflake, Amazon Redshift, GCP, and AWS. Accomplished lots of complicated and not very projects like: ✪ Highly scalable distributed applications for real-time analytics ✪ Designing data Warehouse and developing ETL Pipelines for multiple mobile apps ✪ Cost optimization for existing cloud infrastructure But the main point: I have a responsibility for the final result.

- 10+ years of professional experience in JVM-based software development. - Expertise in Scala’s modern FP stack (Typelevel, ZIO, Akka), data engineering (Hadoop, AWS, Spark), and Java (Spring) for high-performance solutions. - A product-oriented mindset, focused on understanding the business domain deeply to deliver solutions that align with and exceed business expectations.