Senior Optimization Engineer

Jahnel Group, an Inc. 5000 company

Senior Optimization Engineer developing advanced optimization systems to power last-mile delivery. Collaborating with teams to solve complex logistics challenges using operations research and software engineering.

Posted 4/15/2026full-timeRemote • New York • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsDockerJavaMicroservices.NETPython

About the role

Key responsibilities & impact

Design and implement optimization models for large-scale vehicle routing and scheduling problems (VRP).
Translate business requirements into mathematical models including variables, constraints, and objective functions.
Build and maintain production-grade optimization services such as APIs and microservices for routing and dispatch systems.
Leverage tools like OR-Tools, including CP-SAT and MILP, to solve complex combinatorial optimization problems.
Optimize performance and scalability of solvers handling high-volume, multi-distribution center routing scenarios.
Diagnose infeasibility issues and refine models to handle real-world constraints effectively.
Develop scenario planning capabilities including what-if analysis, disruption handling, and overrides with auditability.
Collaborate with cross-functional teams to continuously improve routing efficiency and system performance.
Implement robust exception handling and fallback strategies for real-time routing challenges.
Contribute to system design, including data pipelines, orchestration, and containerized deployments.

Requirements

What you’ll need

5+ years of professional software engineering experience.
3+ years of hands-on experience in optimization, operations research, or mathematical modeling.
Strong background in combinatorial optimization techniques including CP-SAT and MILP.
Proven experience with Google OR-Tools in production, including VRP, scheduling, and performance tuning.
Ability to model complex, real-world constraints in logistics and routing systems.
Proficiency in Python, Java, or .NET with strong software engineering fundamentals.
Experience building scalable backend systems such as APIs, microservices, and distributed systems.
Familiarity with databases, data pipelines, containers such as Docker, and asynchronous orchestration.
Experience with dispatch systems and routing at scale, including multi-DC and high order volumes.
Strong problem-solving skills with the ability to debug infeasibility and performance issues in optimization models.
Excellent communication skills and the ability to bridge business context with technical solutions.
MSc or PhD in Operations Research, Computer Science, Mathematics, Engineering, or a related quantitative field, or equivalent practical experience.

Benefits

Comp & perks

The work hours will be approximately 9:00 am to 5:00 pm EST, depending on workload, with the occasional late night when a tight deadline calls for it.
Background checks will be required.

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Hard Skills & Tools

optimization modelsmathematical modelingcombinatorial optimizationCP-SATMILPPythonJava.NETAPIsmicroservicesdistributed systems

Soft Skills

problem-solvingcommunicationcollaboration

Certifications

MSc in Operations ResearchPhD in Computer SciencePhD in MathematicsPhD in Engineering