Mert Bakır
Data & Decision Systems Engineer
Data and decision systems engineer with 8+ years across operations research, machine learning, and data infrastructure. Designs optimization algorithms and the systems that run them, and leads small engineering teams. Rooted in industrial engineering and mathematical modeling.
Experience
Evreka - Technical Lead, Optimization & Decision Systems
August 2022 - Present
- Designed and implemented capacitated clustering and heuristic algorithms for Vehicle Routing Problems, handling networks with up to 10,000 nodes.
- Built spatial analytics pipelines that process raw GPS data, reconstruct operational trajectories, and produce structured stop-level datasets for optimization and analytics.
- Designed a graph-based dependency resolution system to safely cascade tenant-specific data deletion across a multi-tenant schema with partial foreign key constraints.
- Developed time-series smoothing and anomaly detection algorithms, reducing noise and false-positive events by 20%.
- Built and deployed machine learning models for container fill-level forecasting and faulty sensor detection, feeding predictions into operational planning.
- Led architectural decisions for migrations from Oracle to AWS and GCP, reducing infrastructure costs by 35%.
- Resolved database and throughput bottlenecks, cutting response times by 4x for large operational applications.
- Built and operated production PostgreSQL clusters on AWS and GCP, using streaming replication, automated failover, and point-in-time recovery for high availability and disaster recovery.
- Mentored junior engineers and interns on optimization, machine learning, and backend design.
Evreka - Data Engineer
October 2020 - August 2022
- Developed route optimization services for constrained Vehicle Routing Problems, including heuristic solvers, backend endpoints, and REST APIs.
- Built a Mixed Integer Programming model for an employee scheduling problem with real-world constraints using Python and CPLEX.
- Conducted operational analyses for waste-collection clients to improve resource allocation and fleet utilization, reducing fleet sizes by up to 17%.
- Built data infrastructure and ELT/ETL pipelines using dbt, Airflow, MongoDB, PostgreSQL, and AWS.
- Designed and built a dimensional data warehouse for internal and customer-facing reporting.
- Set up and maintained open-source map and routing engines, cutting monthly costs against proprietary services.
- Designed business intelligence solutions with Power BI Embedded to support operational decisions.
Turkish Technic - Team Lead, Monitoring & Observability
June 2019 - October 2020
- Initiated and led the company-wide monitoring and observability program, building centralized log and metrics aggregation infrastructure.
- Led a team of 4 engineers and coordinated with external consultants to design and deploy the monitoring architecture.
- Built streaming pipelines for high-volume metrics and logs using InfluxDB and Kapacitor.
- Designed automated incident workflows that turn Kapacitor alerts into Jira tickets, assigning teams based on alert context.
- Built executive summary dashboards in Grafana to support IT decision-making.