Oscar Romero
About
Detail
Tech Lead AI Engineer | Staff Software Engineer | Data & AI Solutions Architect
Medellín, Antioquia, Colombia
Contact Oscar regarding:
work
Full-time jobs
Résumé
Jobs
verified_user
0% verified
Tech Lead AI EngineerHatchWorks AIJul 2025 - Current (1 year 3 months)- Senior AI EngineerHatchWorks AIJun 2024 - Jul 2025 (1 year 2 months)- Architecture design and development of AI agents able to do ReAct (Reasoning and Actions) applying techniques like RAG, Chain-of-Thought and Semantic Routers to answer different queries from users, improving user experience by 30%. - Reduce Agent latency responses by 70%, implementing a semantic cache system with Milvus vectorstore. - Apply prompt engineering techniques that properly define the rules, context, guidelines and output expected by the LLMs, improving accuracy by 50%. - Implementation of LangFuse to be able to have observability over each step and trace of the agent, helping the team for debugging, monitoring and improvements. - Use of different LLMs like OpenaAI and Anthropic based on the task teh agent needs to achieve, givi
- Senior Data EngineerHatchWorks AIAug 2022 - Jun 2024 (1 year 11 months)- Improving data pipelines performance through query optimizations and a new architecture to process event data which reduced data time processing by 20%. - Developing and implementation of data quality checkpoints and data contracts which reduce the ingestion and processing of inaccurate data by 15%, reducing reprocessing and generating alerts for the different teams to be reviewed. - Developing and training a chatbot to support customers' questions regarding the different products of the company. Show less
- Senior Data EngineerPublicis GroupeFeb 2022 - Aug 2022 (7 months)- Architecture design for data ingestion of raw data and their storage in parquet, json and avro files, replacing manual processes and getting data updated every hour, improving the efficiency of downstream tasks by 40%. - Building different data pipelines to prepare data for Data Scientist and Machine Learning engineers in order to experiment and finetune ML models, which allow the company to launch a recommendation system. - Automation of QA data ingestions and QA data processing, reducing reprocessing and generating alerts for the different teams to be reviewed. - Implementation and proofs of concepts for different technologies to be used for the business team. Show less
- Product Manager Automation & AnalyticsSodimac ColombiaMar 2021 - Feb 2022 (1 year)- Launching the first version of the Data Monetization Platform, which was available for more than 100 B2B companies and increased the number of clients by 30%. - Implementing complex technological and analytical projects with a focus on collecting, managing, analyzing and visualizing data for sellers, vendors and stakeholders - Definition, development and deployment of data monetization models such as attribution models which allow the company to identify which users preferred to buy online to launch custom campaigns to them. Show less
- Operations CoordinatorUPSJun 2020 - Mar 2021 (10 months)- Development and implementation of logistics models based on data, reducing delivery times by 5%. - Development of several dashboards which allow to monitor and measure the main KPIs of the operation, helping to reduce over costs by 3%.
- Data & Information ConsultantMercerNov 2018 - Jun 2020 (1 year 8 months)• Generation of reports and dashboards according to customer needs, presenting the necessary information for decision-making.
• Database administration and information extraction to obtain insights that help to develop new products based on information for different markets.
• Creation of queries for the operation that allow to automate the data extraction processes.
• Debugging of databases in order to obtain reliable information which can be presented in different dashboards to customers.
• Optimization of existing queries and views to make queries more efficient. Show less - Planning EngineerMitsubishi Electric de ColombiaJul 2018 - Nov 2018 (5 months)• Development of spreadsheets in Excel to calculate the operating costs and budget of the company, thus reducing the cost overruns by 2% and developing a new cost allocation.
• Planning and calculation of delivery times for each of the projects, taking into account the logistics costs, production times, installation times and technical specifications of each of the equipment.
• Improvements within the supply chain process of the elevator business unit, through tools such as MRP and KPI’s that allowed to eliminate the restrictions on the productions system and optimize the whole process by 5%.
• Creating of purchase orders to the headquarters in Japan as well as the realization of different engineering technical consultations
Education
verified_user
0% verified
- Universidad de América — Engineer's degree, Industrial EngineeringUniversidad de América
- IMT Atlantique — Master of Science - MS, Computer ScienceIMT Atlantique