Operations Research Engineer for Logistics & Transport Optimization (CPLEX / Python / Gurobi / COPT / OR-tools / Lingo / GAMS / Matlab)
I am an Operations Research engineer with a strong background in logistics, transportation and scheduling.
I hold a Bachelor’s degree in Logistics Management and a Master’s degree in Management Science & Engineering, where I focused on mathematical modeling and optimization. After graduation I joined a port & logistics technology company as an OR algorithm engineer, working on real-world problems such as yard crane scheduling, truck dispatching and vessel loading optimization.
My core skills include:
- Mathematical optimization (LP, MILP, IP) and heuristics / metaheuristics
- Modeling routing, scheduling, resource allocation and network flow problems
- Implementing models in CPLEX (OPL & Python), Gurobi, OR-Tools, COPT, LINGO, GAMS and MATLAB
- Data preparation, result analysis and sensitivity / scenario analysis
- LaTeX typesetting of technical reports and documentation
I enjoy turning messy real-world requirements into clear models and well-structured code. I pay attention to assumptions, constraints and data quality, and I document my work so that clients can understand and reuse the models in the future.
I am comfortable working with both businesses and researchers. Whether you need to prototype a new optimization idea, improve an existing model, or translate business rules into a mathematical formulation, I can provide structured, reliable and transparent support.
Languages: English and Chinese.
Work Terms
I prefer clear, written requirements before starting a project. Sharing a short description of the problem, objectives, constraints and available data always leads to better results.
Availability & communication
- Part-time availability on weekdays and weekends
- Typical response time within 24 hours
- Communication through Guru messages; online calls can be arranged when needed
Pricing & payments
- For small or exploratory tasks, I am open to hourly work
- For well-defined projects, I prefer fixed-price quotes with milestones
- All payments are processed through Guru SafePay
Delivery & revisions
- Deliverables may include model files (e.g., Python, OPL), data processing scripts and a short explanation of the model and results
- Reasonable revisions are included as long as they stay within the agreed scope
My goal is to build long-term, trust-based collaborations and provide solutions that are both technically sound and practical to use.