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4.5
4.5
100%

Doha, Qatar
$20 USD per hour
- VR/AR/XR Unity Developer with 4 years of experience - Develop VR and AR applications for education and health purposes. - I have a Bachelor's degree in biomedical Engineering which gives me a unique perspective and insight - Top 10% over the world in HackerRank problem-solving - working with Meta quest 2, 3 - HTC Vive - Pico 3,4 - MagicLeap2,

10.0
10.0
97%

SURAT, India
$15 USD per hour
At DaydreamSoft Infotech LLP, we excel in transforming innovative ideas into reality by leveraging cutting-edge tools, frameworks, and programming languages. Our commitment to staying ahead of technological advancements ensures that we deliver high-performance, user-friendly, and scalable applications. Whether you're looking for feature-rich websites, robust mobile applications, or comprehensive digital solutions, our team is equipped to bring your vision to life with advanced design and QA services. TECHNOLOGY STACK ✔ FRONTEND: PSD, HTML, CSS, Bootstrap, AngularJS, VueJS, ReactJS, ExpressJS, NextJS ✔ BACKEND: PHP, NodeJS, Laravel, CakePHP, CodeIgniter, Java, Ruby on Rails, MVC ✔ CMS: WordPress, Squarespace, Wix, Webflow, Weebly, Framer.io ✔ DB: MySQL, MongoDB, SQL, PostgreSQL ✔ Mobility: iOS & Android, React Native, Ionic, Flutter ✔ Marketing: SEO & Digital Marketing ✔ Python: Django, Scrapy, Flask, Odoo, PyQt, Tkinter, Scripting, Automation/API testing, Data Analysis, Pandas, PineScript/Trading Script ✔ Shop: Shopify (Liquid), Magento, WooCommerce ✔ Servers: Dedicated, Shared, VPS, Private Servers, Cloud Hosting ✔ Games: Unity 2D/3D ✔ Design: UX/UI, Graphics, Illustrator, Adobe XD, Figma, Logo Design, Photo Editing, App Screen Designing, Wireframe ✔ Version Control: GitHub, GitLab, SVN ✔ AI/ML ✔ Progressive Web Apps (PWA) ✔ Tools/Software: Trello, Jira, Slack, Asana, Clickup OUR STRENGTHS ✔ Regular Communication ✔ Daily & Weekly Work Update Reports ✔ 100% Guaranteed Plagiarism-Free Work ✔ Guaranteed Data Security & Privacy ✔ Agile Development Methodology FLEXIBLE ENGAGEMENT MODELS ✔ Fixed Cost ✔ Time & Material (Hourly) ✔ Dedicated Team ✔ Hybrid Model (Fixed + Hourly) CORPORATE VALUE PROPOSITION ✔ Patience with Clients ✔ Diversified Industry Portfolio ✔ Dedication to Client's Vision & Empowerment ✔ Proactive in Suggesting Best Practice Solutions ✔ Prioritizes Personal Privacy and Data Security ✔ Customer-Centric, Collaborative, and Communicative Approach ABOUT DAYDREAMSOFT INFOTECH LLP At DaydreamSoft Infotech LLP, our unwavering commitment to outstanding customer service distinguishes us in the industry. We emphasize transparent communication, teamwork, and a thorough understanding of our clients' objectives. Our dedicated team collaborates closely with each client, offering insightful guidance, expert advice, and ongoing support throughout and beyond the development phase. This cooperative approach ensures we consistently exceed client expectations. By choosing DaydreamSoft Infotech LLP, you gain a dependable and strategic technology partner focused on propelling your business forward. We are dedicated to delivering top-notch quality while ensuring projects are completed on time and within budget. Our mission is to enable businesses to flourish in the digital realm through our extensive expertise and impactful solutions.

8.7
8.7
98%

Lima, Peru
$30 USD per hour
Bachelor of Software Engineering, Video and Audio Expert, Senior 3D CAD Designer, Advanced Level in English and Native Spanish Speaker, committed to work, responsible and punctual. ✅ +350 projects completed for big enterprises and international clients ✅ Unlimited revisions ✅ Full time freelancer ✅ Excellent Communication ✅ 100% satisfaction I will help you with any project related to: ✅ Software Engineering: Website Development, Mobile Apps, Database Administration, Data Analysis, Automations and more! ✅ Video: Video Editing, 2D & 3D Animation, Whiteboard Videos, Motion Graphics, Promotional Videos, Reels, Visual Effects and more! ✅ Audio: Audio Editing, Voice Over, Audio Production including Mixing and Mastering of Music (I also offer Promotion for Artists), Podcasts and more! ✅ 3D CAD Designer: CAD Modeling, Solidworks, Product Design, 3D Rendering, Architectural Visualization, STL Files for 3D Printing, Technical Drawings, Product Visualization, Interior & Exterior Rendering, SketchUp Modeling, 3D Mockups and more! Click on "Request Quote" and let's start working on your project!

9.5
9.5
98%

Pune, India
$5 USD per hour
Chetan T - AI Automation Specialist | Devaanta Global Online Business Manager (OBM) - Devaanta Global | AI-Enabled Virtual Assistant | E-commerce Automation Specialist | Amazon & Shopify Expert | Amazon VA Services Hi! I’m Chetan, a highly experienced Virtual Assistant and Online Business Manager (OBM) with 10+ years of experience working with clients across the US and UK. I specialize in helping eCommerce businesses and online entrepreneurs save time, boost efficiency, and scale using AI tools and automated workflows. Whether you're running a Shopify store, selling on Amazon, or managing multiple channels — I'm here to make your operations seamless and stress-free. #My Core Services: ✅ Shopify Store Setup & Automation (Shopify Flow, Zapier) ✅ Klaviyo Email Marketing & Campaign Automation ✅ AI-Powered Admin Support (ChatGPT, Google Workspace) ✅ Customer Support & Order Management ✅ Product Listing, Research & Optimization ✅ Dropshipping & Private Label Support ✅ VA Services with AI Integration I combine traditional VA skills with modern AI tools — helping you work smarter, not harder. #Amazon FBA & Seller Central Management: ✅ Product Listing Optimization: Keyword-rich titles, bullets, and descriptions ✅ A+ Content Setup: Enhanced Brand Content and error resolution ✅ Brand Store Design: Visually engaging and conversion-focused ✅ FBA Shipment Management: Creating and reconciling shipments, Hazmat, and stranded inventory ✅ Customer Service: Handling buyer messages, returns, and feedback ✅ Inventory & Price Management: Stock forecasting, pricing strategy, and Buy Box optimization ✅ Performance Reporting: Weekly/monthly reports with actionable insights ✅ Sales Campaigns: Lightning Deals, Coupons, Clearance Offers With 8+ years of experience in Amazon FBA, I offer complete Amazon store management — from sourcing to sales optimization: #Product Sourcing & Private Label Development: ✅ Looking to launch your own product or expand your catalog? I can help with: ✅ Global Product Sourcing (China, India, etc.) ✅ Supplier Vetting & Negotiation (via Alibaba, GlobalSources, etc.) ✅ Private Label Product Development ✅ Cost Analysis & Profit Margin Optimization ✅ End-to-End Supply Chain Coordination I ensure a smooth process from product concept to final delivery, so you can focus on growing your brand. #Why Hire Me on Freelancer.com?: ✅ 10+ Years of Experience with Global Clients ✅ 100% Reliable, Organized & Communicative ✅ Flexible with Time Zones & Work Hours ✅ Proactive Problem Solver with a Strategic Mindset ✅ Deep Understanding of E-commerce Trends & Tech Tools Whether you're launching a new store, optimizing operations, or need a long-term business assistant, I’m ready to jump in and deliver. Let’s collaborate to automate, simplify, and grow your online business. Click the “✅Hire Me✅” button, and let’s get started today!

9.2
9.2
99%

Daska, Pakistan
$50 USD per hour
Live Experts LLC is a multidisciplinary technology company specializing in Engineering, AI/ML, Embedded Systems, IoT, and Automation Solutions for startups, businesses, and enterprises worldwide. With over a decade of technical delivery experience and hundreds of successfully completed projects, we help clients transform complex ideas into scalable, production-ready solutions that solve real business and operational problems. Our strength comes from combining software, AI, automation, electronics, and engineering expertise under one team. This allows us to handle both digital systems and real-world hardware projects with practical implementation experience. Our expertise includes: • Artificial Intelligence (AI) & Machine Learning (ML) • Generative AI & Conversational AI • AI Chatbots & AI Agents • Computer Vision & OCR Systems • Predictive Analytics & Data Intelligence • Workflow Automation & AI Integration • Embedded Systems & IoT Solutions • Arduino, ESP32 & Raspberry Pi Development • PLC, SCADA & Industrial Automation • Electrical & Mechanical Engineering Support • Sensor Integration & Smart Monitoring Systems • AI-Powered Dashboards & Business Platforms • Cloud APIs & System Integrations • Automation & Control Systems We work with modern technologies including: Python, OpenAI, ChatGPT, TensorFlow, OpenCV, Node.js, React, FastAPI, PostgreSQL, AWS, Docker, MATLAB, Arduino, ESP32, Raspberry Pi, PLC systems, and industrial automation platforms. What makes us different is our ability to bridge the gap between: AI + Automation + Embedded Systems + Engineering Many companies can build software. Others can build electronics. Very few can combine AI, automation, hardware, and engineering into complete intelligent systems that work in real business environments. We have experience working across: • Industrial Automation • Healthcare • Logistics & Fleet Systems • Manufacturing • Finance & Trading Systems • Smart Monitoring Systems • Operational Dashboards • IoT & Connected Devices • AI Business Solutions • Intelligent Automation Platforms Our development approach focuses on: • practical implementation • scalable architecture • clean UI/UX • reliable integrations • business-focused solutions • long-term maintainability • clear communication • premium execution quality Whether you need: • an AI-powered platform • an embedded IoT device • industrial automation • computer vision systems • AI automation workflows • predictive analytics dashboards • AI chatbots • sensor-based monitoring systems • electrical/mechanical engineering support • or a complete intelligent system Live Experts can help design, develop, and deploy reliable solutions tailored to your business goals. We believe in building long-term partnerships and delivering systems that create measurable operational and business value.

7.8
7.8
100%

Argoncilhe, Portugal
$50 USD per hour
Welcome to my profile. I have specialized in building ecommerce solutions tailored to your business needs. With years of expertise in ecommerce development, i help store owners create optimized, high-performing online stores. - Specialized Expertise: --- Extensive experience in ecommerce platforms and custom development. --- Skilled in delivering extensions, custom optimizations, and tailored tweaks to enhance your store's functionality. - Modern Approach: --- Recently focused on building and optimizing Hyva shops for improved performance and user experience. --- Multi-Platform Support: --- Proficient with platforms like Shopify, Shopware, Prestashop, WooCommerce, Hyva, and more. - Platform Expertise: Migration, optimization, and integration for: --- Magento --- Shopify --- Shopware --- Prestashop --- WooCommerce I'm passionate about bringing your ecommerce vision to life. Will ensure every project exceeds expectations, delivering premium solutions that help your business thrive. Let’s build something amazing together!

8.5
8.5
97%

Karachi, Pakistan
$25 USD per hour
At SI Global Solutions, we have proudly established ourselves as leaders in the digital marketing arena, backed by over 10 years of experience. Throughout our journey, we've had the privilege of partnering with hundreds of businesses, guiding them to achieve remarkable digital success. Our deep understanding of the ever-evolving digital landscape allows us to craft tailored strategies that resonate with your target audience and amplify your brand’s online presence. Our expertise spans across various aspects of digital marketing. From enhancing your brand's visibility on social media platforms to implementing cutting-edge SEO techniques that drive organic traffic, we excel at every facet of digital marketing. Our team of seasoned professionals is dedicated to creating and executing powerful digital campaigns that not only capture attention but also convert leads into loyal customers. At SI Global Solutions, we believe that digital success is not just about being seen; it's about making a lasting impact. We work closely with our clients to understand their unique business needs and objectives, ensuring that our strategies are aligned with their goals. Whether you’re looking to dominate social media, optimize your website for search engines, or launch compelling online advertising campaigns, we have the creativity, expertise, and passion to make it happen. Let SI Global Solutions be your partner in navigating the digital landscape. Together, we can take your business to new heights, turning your online presence into a powerful tool for growth and success. ⭐⭐⭐⭐⭐ Expertise ⭐⭐⭐⭐⭐ Quality of Work ⭐⭐⭐⭐⭐ Professionalism ⭐⭐⭐⭐⭐ Communication skills

6.5
6.5
97%

Vienna, Austria
$15 USD per hour
Hello there, Everything about us: ** We are a team of experienced postgraduate engineers in the field of Mechanical Engineering, Energy Engineering, Biomedical Engineering, Control Engineering, and Material Engineering who studied at Politecnico di Milano University which is ranked 13th in the field of engineering in the world. Our team members have more than 5 years of experience in: *** Programming: C++, Python, MATLAB, EES *** CAD: SolidWorks, CATIA *** CFD: ANSYS Fluent, ANSYS CFX *** FEM: ANSYS Workbench, Abaqus *** Advanced Courses: Static, Dynamic, Thermodynamic, Fluid Dynamics, Heat Transfer, Control automatic, Aerodynamic, etc *** Physics: Physic I, Physic II *** Mathematics: Calculus I, Calculus II, Algebra, Geometry, Engineering Mathematics, etc. *** Optimization: Genetic algorithms, Neural network, Machine learning ** Our team assures you a high-quality, precise, and fast job besides our excellent support after the job (That’s why we got 5-stars). Our profile review proves everything to you ;D. Bests

6.7
6.7
100%

Brasov, Romania
$40 USD per hour
I am a graphic artist with over 10 years experience working on several different formats of graphic design including Web Design, Icon Design, Logo Design, Book Cover Design and Business Cards Design. I mostly work with: ✅ Wordpress ✅ Woocommerce ✅ Shopify ✅ Figma ✅ Illustrator ✅ Photoshop My projects may have different style and approach depending, but there are two things that are always there : PROFESSIONALISM and QUALITY! ⭐ 10+ Years Experience in Web Development. ⭐ 500+ Projects Completed Till Now.. ⭐ 100% Satisfied Customers. ⭐ Jobs Completed
A Combinatorial Problem Solving Expert is a specialist who designs algorithms and mathematical models to solve discrete optimization problems involving scheduling, routing, packing, assignment, and resource allocation. These freelancers translate complex business constraints into solvable mathematical formulations, then implement efficient algorithms that find optimal or near-optimal solutions. Whether the problem is routing delivery trucks across a city, scheduling staff shifts, packing containers, or matching resources to tasks, a combinatorial optimization specialist brings the rigorous techniques needed to produce decisions that save time, money, and operational effort.
Combinatorial problem solving sits at the intersection of operations research, applied mathematics, and computer science. A freelancer in this field formulates a real-world decision problem as an integer program, constraint satisfaction problem, or graph problem, and then solves it using exact methods, heuristics, or metaheuristics. The commercial value is direct: better routes, tighter schedules, fewer wasted resources, and decisions that scale beyond what spreadsheets or intuition can handle.
Typical deliverables include a documented mathematical model, working solver code, validation against test instances, performance benchmarks, and integration guidance so the solution can run inside an existing system. Many engagements also include a written explanation of the formulation so internal teams understand the logic behind the recommendations.
Combinatorial optimization experts work with a defined toolkit of solvers and modeling environments. Strong candidates are fluent in mixed integer programming (MIP), constraint programming (CP), and metaheuristic design.
Combinatorial optimization is applied wherever discrete decisions must be made at scale. Common industries include logistics and last-mile delivery, manufacturing and production planning, airline and transportation scheduling, healthcare staffing and operating room planning, energy grid dispatch, telecommunications network design, retail assortment and shelf planning, finance and portfolio construction, and academic research in operations research and theoretical computer science. Software product teams also hire these freelancers to embed optimization engines inside SaaS platforms for routing, scheduling, and planning.
Strong candidates combine mathematical rigor with practical engineering. Look for a background in operations research, applied mathematics, computer science, or industrial engineering, and evidence of solving real instances rather than only textbook examples. A serious portfolio shows formulations, code, benchmark results, and ideally write-ups explaining trade-offs between exact and heuristic methods.
Sample interview questions a client can use directly:
Freelancer.com gives you direct access to a global pool of operations research professionals, applied mathematicians, and algorithm engineers with verifiable track records. You can review portfolios, ratings, and past project reviews before shortlisting, and you set your own budget while receiving competitive bids from qualified freelancers on Freelancer.com. The platform supports everything from short consultations on a single formulation to long engagements building production optimization engines, with Milestone Payments protecting your funds at each phase. For specialized fields like combinatorial optimization, the scale of Freelancer.com makes it possible to find experts whose experience matches your exact problem class, whether that is vehicle routing, scheduling, or graph optimization.
Whether you need a one-off model review or a full production optimization engine,
Hiring a combinatorial optimization specialist is straightforward when you frame the problem clearly upfront. Because this is a mathematically demanding field, the quality of your brief directly shapes the quality of the proposals you receive. The three steps below walk you through posting a project, evaluating bids, and awarding the work.
Your project post is the single biggest determinant of bid quality. A clear brief filters for candidates whose mathematical and engineering skills genuinely match your problem class, whether it is vehicle routing, scheduling, packing, or graph optimization. Head to the
Bids are short proposals revealing how each freelancer interprets your problem, not just price quotes. A strong proposal for combinatorial optimization references a likely formulation approach, asks clarifying questions about constraints, and proposes a realistic timeline for modeling, solving, and validation. Read each bid carefully and use chat to probe further before shortlisting.
The final decision combines proposal quality with profile evidence. Look at portfolio depth, ratings, and written reviews from past clients, weighing consistency across multiple projects rather than one standout example. For combinatorial optimization, portfolio markers like published GitHub repositories, competition rankings, and case studies on similar problem classes carry significant weight.
A data scientist typically focuses on statistical modeling, machine learning, and predictive analytics from data. A combinatorial problem solving expert focuses on prescriptive analytics — deciding what to do given constraints — using integer programming, constraint programming, and combinatorial algorithms. The two skills are complementary but require different training and tooling.
Small, well-defined problems such as a single routing or assignment formulation can often be modeled and solved in one to two weeks. Larger production projects involving custom heuristics, integration with existing systems, and benchmarking on real data typically run several weeks to a few months depending on instance size and accuracy requirements.
It depends on instance size, time limits, and how close to optimal the solution must be. Exact solvers like Gurobi or CPLEX guarantee optimality but may not scale to very large instances within tight time budgets. A good freelancer will analyze your problem and recommend exact methods, metaheuristics, or a hybrid approach based on your operational constraints.
Yes. Many freelancers on Freelancer.com take short engagements to review an existing formulation, suggest reformulations, recommend solver settings, or audit performance bottlenecks. This is a cost-effective way to validate an internal approach before committing to a larger build.
At minimum, describe the decisions to be made, the constraints involved, the objective being optimized, the typical instance size, and any sample data. Sharing the current process, target solution time, and any required integrations helps freelancers submit accurate proposals.

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