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Piotr Nowak

@piotrnowak2

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Staff Software Engineer at Dataiku who led Generative AI capabilities using LLM APIs, RAG, AI agents, and embeddings.

Poland

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At Dataiku, I owned technical direction for full-stack applications, backend services, and cloud-based data platforms. I led architecture and implementation of Generative AI capabilities using LLM APIs, RAG, AI agents, and embeddings.

I also drove event-driven data-processing workflows with Kafka and improvements to scalability, performance, and reliability. Across four remote engineering squads, I aligned technical decisions and reduced cross-team miscommunication incidents by 40% over 12 months.

At LeanIX and Mendix, I developed backend services and data-intensive systems, improving data quality, database performance, and production observability. Earlier, at STX Next and ITMAGINATION, I built backend and web applications, REST APIs, and database integrations.

Experience

Work history, roles, and key accomplishments

Staff Full Stack Software Engineer

Dataiku

Sep 2023 - Aug 2026 (2 years 11 months)

Owns technical direction for scalable full stack applications, backend services, and cloud-based data platforms. Leads architecture and implementation of Generative AI capabilities using LLM APIs, RAG, AI agents, and embeddings.

Senior Software Engineer

LeanIX

Jul 2021 - Aug 2023 (2 years 1 month)

Designed and developed scalable backend services, REST APIs, and data-intensive components for enterprise software platforms. Improved PostgreSQL and Redis performance through query optimization, indexing, caching, and data-access redesign.

C#.NET Core Entity Framework PostgreSQL Redis Azure Docker OAuth Python SQL Prometheus Grafana Observability Performance Optimization System Design Code Review Technical Leadership

Senior Software Engineer

Mendix

Apr 2019 - Jun 2021 (2 years 2 months)

Designed and implemented backend services, data-processing systems, and integrations supporting enterprise application platforms. Built event-driven data-processing workflows using RabbitMQ and ClickHouse for asynchronous workloads and analytics.

C#.NET REST APIs RabbitMQ Clickhouse PostgreSQL Snowflake Terraform Event Driven Architecture Asynchronous Processing Data Processing System Design Code Review Testing Production Troubleshooting

Software Engineer

STX Next

Oct 2016 - Mar 2019 (2 years 5 months)

Designed and developed backend services, web applications, REST APIs, and database integrations for production systems. Built business logic and data-processing components using Python, Ruby, Ruby on Rails, JavaScript, SQL, PostgreSQL, and Docker.

Python Ruby Ruby on Rails JavaScript SQL PostgreSQL Docker REST APIs Refactoring Testing System Design Code Review Collaboration

Software Engineer

ITMAGINATION

Jul 2013 - Sep 2016 (3 years 2 months)

Designed and developed backend and web applications, REST APIs, database integrations, and business-critical application components. Built software using Java, Python, Ruby, Ruby on Rails, JavaScript, SQL, and relational databases.