I help businesses solve complex operational challenges by building custom mathematical optimization models. With 9+ years of combined industry and research experience, I turn complex problems into scalable, production-grade solutions
What I deliver:
• Routing & Scheduling Optimization – Vehicle routing (VRP), shift scheduling, delivery window optimization
• Supply Chain & Resource Planning – Inventory management, production planning, resource allocation
• Energy Optimization – Unit commitment, energy storage, and renewable integration models
• Manufacturing & Process Optimization – Cutting stock, bin packing, assignment & placement problems, and workflow efficiency
Why clients hire me:
• Proven results – Top Rated Plus freelancer on Upwork, trusted for long-term, high-value optimization projects.
• Production-ready delivery – From research & prototyping to cloud-deployed pipelines, ensuring scalability and reliability.
• Broad solver expertise – OR-Tools, PuLP, Pyomo, Gurobi, CBC, HiGHS, and custom heuristics, with GPU acceleration for large-scale models.
Background & Credentials:
• Former industry engineer and researcher at leading European institutes
• Published in top-tier conferences and journals
• Deep technical foundation - experience building production-grade systems and leading teams in fast-paced startup environments
If you’re ready to streamline operations or need expert support in designing and deploying custom optimization solutions, let’s talk.
Python
Mixed Integer Linear Programming
Operations Research
Mathematical Modeling
Applied Mathematics
Mathematical Optimization
C++
Linear Programming
PuLP
Petar L.
Budva, Montenegro
$50/hr
5.0
1 jobs
WORK EXPERIENCE
- Microsoft Windows Server on premises systems – Active Directory, Certificate authority, Hyper-V, Hyper-V clustering, File Servers, ReFS and Deduplication, Storage Spaces, Storage spaces direct, Work Folders, WSUS, Bitlocker;
- Microsoft Azure – AD sync on-prem to Azure AD, VM replication to Azure, Azure as Disaster Recovery solution for on prem, MS365 user licensing;
- Microsoft SQL server – Setup and administered multiple on premises virtualized SQL server instances, Storage and backup for SQL server, High Availability for MS SQL, querying and reports;
- Linux servers – Two decades of experience in LAMP website hosting and debugging of linux server deployments. Experience with Ubuntu and CentOS, ZFS, MDADM, Apache and Nginx, MySQL, Shell scripting, Python;
- Virtualization, orchestration and containerization – Experienced with HyperV and Docker. Limited experience with KVM, Citrix Xen, Kubernetes, Terraform, VM Ware, VirtualBox, Proxmox;
- Monitoring systems – Limited experience with ELKstack and Manage Engine OpManager.
- Backup solutions – TrueNAS ZFS deduplicated backup solutions for Linux and Windows servers, WorkFolders with snapshots as user backup solutions, limited experience with Veeam for servers;
- Networking – primarily experienced with MikroTik and FortiGate networking implementations: Switching and VLANs, Routing, Firewalling, QoS, SiteToSite and B2B VPNs, Client VPNs, SD-WAN and IPIP tunneling, OSPF routing, local and central logging,
- Securing servers with secure admin accounts and SSH practices, IPtables/FirewallD , Fail2Ban, Fortinet firewalling and IDS/IPS, CloudFlare;
- Network security with application control, HTTPS decryption and traffic inspection, IDS/IPS, DNS and content filtering, switch port security
- Procurement of IT equipment – 8 years of experience procuring server, networking and user equipment for business, and a 20 year old love for building enthusiast PCs;
- Corporate IT Operations management - managing IT staff and writing job descriptions, task and time management with ClickUp, writing IT policies procedures and minimal standards, supervision and tutoring of staff and specialist positions, hiring and promoting the good, firing the bad, managing core business software development with vendor and internal clients, participation in business development, identifying and mapping of business processes, searching for software solutions and establishing contracts, workspace technical projecting and build oversight, conferencing audio and video solutions
NOTABLE EXPERIENCE WITH SOFTWARE AND TECHNOLOGIES
- CloudFlare – DNS, domains, HTTPS, DDoS protection, website optimization, WAF;
- Cloud computing providers– Limited experience with GCP, Azure, AWS and Oracle cloud services;
- WordPress – hosting, securing and debugging of deployments;
- ManageEngine IT operations apps;
- MicroFinancial loaning applications;
NOTABLE EXPERIENCE WITH COMPUTER HARDWARE
- FortiNet, MikroTik, Ubiquiti, HP and Dell networking equipment
- SuperMicro, HP and Dell servers
- HP, Asus, Lenovo and Dell laptops
- Lexmark, HP and Kyocera printers
Microsoft Server
Linux System Administration
Microsoft SQL Server
Security Appliance
FortiGate Firewall
Security Engineering
Cloud Security
Microsoft Azure
Systems Engineering
Server Virtualization
Software-Defined Storage
Network Engineering
Edin S.
Podgorica, Montenegro
$60/hr
4.8
11 jobs
I have over 15 years of programming experience, with my language of choice being Python.
Some of the technologies that I have experience with: Linux, Python, SQL (SQLite/PostgreSQL/MySQL), PHP, Matlab, C, C++, XML, XQuery, HTML, CSS, matplotlib, Pyramid, Django, web2py, Google App Engine, Heroku, Emacs, LaTeX, scripting (Windows and Linux), parsing, writing desktop and web applications, Ruby, Scala, Java, Lisp, JavaScript, OOP, MVC...
Python
C++
C
JavaScript
Java
Scala
CSS
MATLAB
Machine Learning
Scripting
HTML
LaTeX
PHP
Ruby
Elizaveta M.
Budva, Montenegro
$35/hr
5.0
3 jobs
6+ years of experience transforming data into actionable insights for SaaS, Banking, and Fintech industries. I specialize in helping businesses leverage their data for strategic decision-making and measurable growth.
🎯 Key Achievements:
• Increased client revenue by 30% through strategic data analysis and reporting
• Reduced operational time costs by 25% through efficient data systems
• Successfully implemented PowerBI solutions for 200+ employee company
• Developed comprehensive tracking system for a major European bank's collateral department
🛠️ Technical Expertise:
• Data Visualization: Power BI, Tableau, Looker Studio
• Data Analysis: SQL, Python, Advanced Excel
• Automation: VBA, Python
• Database Management: SQL
• Business Intelligence: Dashboard Creation, KPI Tracking
💡 What You Get Working With Me:
• Strategic approach to data visualization and analysis
• Clear communication and regular progress updates
• Focus on delivering actionable insights
• Solutions tailored to your business needs
• Quick turnaround times with attention to detail
🚀 Services I Offer:
• Custom Dashboard Creation
• Advanced Data Analysis
• Data Visualization
• Business Intelligence Solutions
• Performance Metrics & KPI Tracking
• Data System Implementation
Let's transform your data into a powerful tool for business growth. Contact me to discuss how I can help you achieve your data analytics goals.
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