Data Engineering Consulting

Backend and data engineering integrating the latest AI technologies. In Stockholm or remotely for clients worldwide.

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About Updab

Updab AB, founded by William Saar (MSc) and incorporated in Sweden, offers AI-informed backend and data engineering services to international clients on a remote basis.

Experiences include data and backend engineering at scale for two consumer apps each serving 300M+ users, development of leading enterprise security and performance tools, and development and design of latency-sensitive financial trading tech.

Core Technologies:

Apache Flink Kafka Streams Apache Beam Google Dataflow BigQuery Java Rust Scala TypeScript Python Go SQL

Key Experience

Projects

SpecToMCP

Generate Model Context Protocol (MCP) servers from Swagger / OpenAPI specifications

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Model Comparison Agent

Python FastAPI and LangChain RAG agent with a Postgres vector store to compare AI models in a recruitment agency scenario

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akhq-mcp-server

Open source MCP server to let AI assistants work alongside the user with Kafka monitoring tool AKHQ

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Flushout

Open source distributed data model based on event sourcing written in TypeScript

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ThinkCool

Mobile app developed with React Native and deployed to Apple and Google app stores (now decommissioned)

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GitBulletin

AI project in Rust demonstrating OpenAI APIs to generate newspaper-style front pages from Git commits, with Postgres vector stores for searching related activity

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Writings and Talks

Migrating batch-ETLs to Streaming Flink

Presentation slides from technical talk about streaming data architecture

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Trusting Agents with Rust

tCell/Rapid7 blog article on secure agent development

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