Lucas H.

Senior AI Engineer

Tallinn, Estonia

Experience

Aug 2023 - Present
2 years 5 months

Senior AI Engineer

Iddo Software

  • Built an AI-driven computer vision SaaS for industrial quality control, automating real-time defect detection and predictive maintenance across manufacturing environments.

  • Built a Generative AI platform using LLMs and Transformer-based reasoning, enabling real-time interpretation of industrial telemetry and reducing false alerts by 32%.

  • Designed an Agentic AI maintenance assistant using LangChain, RAG, and custom embeddings, enabling conversational troubleshooting for technicians.

  • Implemented streaming and ETL workflows (Kafka, Spark, Airflow) that enriched text-based logs and simulation narratives for downstream modeling.

  • Created multi-agent inference pipelines with LLM orchestration and optimized models using ONNX Runtime, improving latency by 45%.

  • Transitioned batch NLP pipelines into continuous-learning systems, enabling real-time adaptation and reinforcement learning loops.

  • Built deep learning pipelines supporting multi-class segmentation, anomaly detection, and surface-quality scoring using PyTorch and TensorFlow.

  • Implemented AI monitoring with drift detection, continuous evaluation, and automated retraining cycles to maintain model accuracy.

  • Mentored engineers on prompt engineering, LLM lifecycle, and agent-based system design, improving team AI maturity.

  • Key technologies: Python, TensorFlow, PyTorch, FastAPI, Databricks, MLflow, SHAP, LIME, Redis, Azure

Jan 2021 - Jul 2023
2 years 7 months

Senior AI / ML Developer

Brainhub

  • Led AI integration for a digital-twin simulation platform for autonomous mobility and robotics, embedding real-time intelligence and predictive analytics.

  • Designed advanced deep-learning architectures using PyTorch Lightning, Transformers, and sequence-modeling techniques for event prediction and command interpretation.

  • Built scalable FastAPI and Flask microservices to serve inference models powering 3D simulation dashboards and mission-control interfaces.

  • Orchestrated high-throughput streaming and ETL pipelines using Kafka, Spark, and Airflow to synchronize simulations and telemetry data.

  • Transformed legacy batch pipelines into continuous-learning systems, enabling reinforcement learning and online model adaptation.

  • Implemented model monitoring, drift detection, latency profiling, and automated rollback using Prometheus and MLflow.

  • Collaborated closely with robotics teams to integrate object detection, trajectory prediction, and optimization models into real-time simulation loops.

  • Mentored engineering teams on GPU scheduling, container orchestration, and CI/CD for ML pipelines.

  • Key technologies: Python, PyTorch, Transformers, FastAPI, Kafka, Spark, Airflow, Snowflake, MLflow

Feb 2018 - Dec 2020
2 years 11 months

AI Developer

Codewise

  • Delivered ML-powered fraud detection and campaign optimization systems for global adtech networks handling millions of daily user events.

  • Built ML pipelines using scikit-learn and TensorFlow to classify fraudulent traffic, bot behavior, and invalid conversions.

  • Engineered distributed processing pipelines using Kafka and Spark, handling tens of millions of events per hour.

  • Implemented data validation, drift detection, and A/B evaluation to ensure alignment between offline training and online performance.

  • Built monitoring systems tracking latency, accuracy decay, prediction throughput, and automated retraining triggers.

  • Key technologies: Python, scikit-learn, TensorFlow, Flask, Django, Kafka, Spark, AWS SageMaker, GCP AI Platform

May 2016 - Jan 2018
1 year 9 months

Python Backend & ML Engineer

Testlio

  • Developed ML-powered analytics and automated forecasting systems for Testlio’s enterprise QA management platform, improving test prioritization and anomaly detection.

  • Designed Airflow-based pipelines processing 1M+ QA reports and device logs daily.

  • Built Django and Flask APIs exposing predictive scoring and test-recommendation models.

  • Implemented feature extraction pipelines using pandas, NumPy, and optimized data transformations.

  • Built analytics dashboards integrating PostgreSQL materialized views and stored procedures.

  • Transitioned experimental ML models from notebooks into production-grade Python packages.

  • Delivered internal workshops on model integration, API performance, and data governance.

  • Key technologies: Python, Django, Flask, Airflow, pandas, NumPy, PostgreSQL, Docker

Oct 2013 - Apr 2016
2 years 7 months

Python Developer

Nortal

  • Contributed to a scalable sales intelligence and workflow automation platform, improving backend performance, data processing reliability, and enterprise CRM integrations.

  • Developed backend services and Django REST APIs for lead processing, workflow automation, and CRM synchronization.

  • Implemented asynchronous pipelines using Celery and Redis, increasing throughput and reducing response latency.

  • Designed and optimized PostgreSQL schemas with indexing, partitioning, and query tuning to support large analytical datasets.

  • Integrated third-party CRM systems using REST endpoints, data-mapping logic, and secure authentication mechanisms.

  • Refactored Python modules to improve maintainability, backend performance, and service reliability.

  • Supported deployment workflows using Docker, Git, and environment-specific configuration practices.

  • Key technologies: Python, Django, Django REST Framework, Celery, Redis, PostgreSQL, Docker, Git, REST APIs

Summary

Accomplished AI/ML Engineer and Python Backend Developer with 10+ years of experience delivering machine learning systems, backend architectures, and production-grade APIs. Expert in LLMs, NLP, computer vision, distributed data engineering, and cloud-native MLOps. Known for transforming complex requirements into scalable, high-performance solutions while mentoring teams and driving measurable results.

Languages

English
Advanced
Estonian
Intermediate

Education

Oct 2020 - Jun 2022

Tallinn University

Master of Arts · Computer Science · Tallinn, Estonia

Oct 2010 - Jun 2013

The University of Tartu

Bachelor of Arts · Computer Science · Tallinn, Estonia

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