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The Hawkesbury Geek

5.0

138

8.1

99%

Kurrajong, Australia

$35 USD per hour

G'day! I'm Brett, a full-stack developer with 20+ years of hands-on experience in website design, development, mobile & desktop app development, hosting, AI-driven automation, and advanced Excel-based data and financial solutions. I went through all levels of verification by Freelancer staff providing you with reassurance that I am one of the top developers on Freelancer. I build reliable, scalable websites and applications, and I help businesses use AI in a practical way — automating repetitive work, improving customer experience, and making systems smarter without unnecessary complexity. My core tech stack includes PHP, JavaScript, Python, C/C#, and Java, along with modern frameworks, AI, APIs, and industry-standard tools. What I Do 1. Website Design Figma, PSD, and Adobe XD to Responsive Layouts using CSS, Bootstrap, Tailwind CSS 2. WordPress - Custom themes & plugins - ACF, Gutenberg, Elementor, Divi, Beaver Builder, Oxygen, WPBakery - Advanced custom forms (Gravity Forms, WPForms, Contact Form 7) 3. Website & Application Development 3.1 Next.js & Modern Web Apps - Next.js websites and applications - Server-side rendering (SSR) & API integrations - Secure, scalable architecture 3.2 Front-End - HTML, CSS, JavaScript, jQuery - React.js, Angular, Vue.js, MUI - Bootstrap, Tailwind CSS 3.3 Back-End - Node.js (Express) - PHP (Laravel, Symfony, CodeIgniter, Yii, Zend) - Python (Django, Flask, FastAPI) - C# (.NET, .NET Core) 3.4 Full-Stack - MERN & MEAN stacks - Secure APIs, authentication & integrations 4. AI & Automation - AI chatbots and assistants for websites & internal tools - OpenAI / LLM integrations (chat, content, data processing) - Smart search, filtering & AI-powered features 5. E-commerce - WooCommerce, Shopify, Magento, Prestashop, OpenCart - Custom features, integrations & performance optimisation 6. Mobile App Development (Flutter & React Native) - Cross-platform mobile app development for iOS and Android - API integration (REST, GraphQL, Firebase, etc.) - Push notifications, authentication, payments & third-party services 7. Desktop Application Development (Electron) - Cross-platform desktop apps for Windows, macOS, and Linux using Electron - Building modern, responsive desktop UI using HTML, CSS, JavaScript, React, and Node.js - API integrations for cloud-connected desktop tools 8. Excel & Finance Automation - Advanced Excel solutions (formulas, pivot tables, dashboards) - Financial modelling, forecasting & reporting tools - Data cleaning, transformation & analysis - Automation using Excel, Google Sheets & scripts (VBA / Python) - Integration with APIs, CRMs, and business systems for real-time reporting 9. Hosting & Deployment - Hosting setup, optimisation & security - Ongoing maintenance and support I'm online pretty much 24x7 so you're never going to wait long for an answer. I'm easy to chat to and extremely keen to achieve a 5/5 result for both sides, get in touch.

Algorithm ASP JavaScript Python Website Design

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Jongguran Sondang Doli N.

4.9

5.1

98%

Homebush, Australia

$25 USD per hour

Hi! I am a Lean Six Sigma professional with two Master's degrees in engineering. Mathematics and statistics are my bread and butter! I have written research papers for international conference. I am experienced in programming and operating statistical softwares. At the same time, I am also a professional translator with years of experience. I am capable of translating your English documents to Indonesian, or vice versa, manually and perfectly. I would like to point out that translation is not just about substituting some words to another language. There’s more to that. You can’t just go to random natives and expect them to deliver a serious and perfect translation of your message. When you don’t understand the language, how can you be sure they represent your idea & message in the whole new culture and perspective without any misunderstanding? I possess the skills and experience you are looking for. I assure you that you will get only impeccable quality and results from me.

Algorithm Copywriting Translation Engineering Research

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Muhammad A.

4.7

5.7

97%

Perth, Australia

$50 USD per hour

I provide complete IT services tailored to modern business needs, with a strong focus on Blockchain development, Artificial Intelligence, Machine Learning, Big Data, Web and Mobile app development, E-commerce platforms, and custom software solutions. I specialize in blockchain technologies including DEXs, DApps, NFTs, Web3, smart contracts, and DeFi applications across platforms like Ethereum, BSC, and Polygon. For web and mobile development, I work with Java, Python, PHP, and top JavaScript frameworks such as React.js, Node.js, Angular, and Vue.js—alongside mobile technologies like Flutter and React Native. My e-commerce solutions are built on platforms like WooCommerce, Shopify, and Magento, while my AI and machine learning services leverage tools such as TensorFlow and AWS to create intelligent, data-driven systems. If you're looking for secure blockchain integration, modern web and mobile development, scalable e-commerce systems, or custom AI-driven software, I’m here to help turn your ideas into powerful digital products.

Algorithm PHP C Programming Java JavaScript

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Ren Z.

5.0

6.4

97%

Sydenham, Australia

$40 USD per hour

═════════════════════════════════════════════ LEON FRESH / REN Full-Stack Developer + UI/UX Designer · Sydney · 10+ Years Next.js · React · WordPress · AI Web Apps · SaaS · UI/UX ═════════════════════════════════════════════ One hire. Premium design and the engineering to ship it. Most web projects need two people: a designer to create a polished user experience, and a developer to build it properly. I do both. I help businesses, startups, and founders turn ideas into beautiful, fast, production-ready websites and web apps without the usual handoff problems, miscommunication, or doubled cost. I can help you with: ✅ Custom websites and landing pages ✅ Web apps, dashboards, portals, and SaaS products ✅ Next.js, React, JavaScript, HTML5/CSS3, PHP, Python ✅ WordPress design, development, fixes, and customisation ✅ AI tools, GPT/LLM integrations, automation, and Python workflows ✅ UI/UX design in Figma, Adobe XD, Photoshop, Illustrator, and InDesign ✅ Interactive experiences using Unity3D and C# Trusted by: BMW · Maserati · Sony · CeBIT Australia What makes me different: I care about both how your project looks and how it works. You get clean design, clear communication, responsive development, and a final product that feels professional instead of patched together. I also bring a strong creative and strategic background, with 35k+ YouTube subscribers and 18M+ views, giving me a real understanding of attention, content, and user engagement. If you need a developer who can think like a designer, build like an engineer, and communicate clearly from start to finish, I’d be happy to help. Let’s build something polished, functional, and ready to launch.

Algorithm PHP C Programming JavaScript Python

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Matrix Tech Software

5.0

8.1

95%

Kayena, Australia

$120 USD per hour

Freelance Technology Partner | UX/UI, Web & Mobile Development, AI, and Digital Transformation Based in Australia, I help business leaders build and scale successful digital products. With expertise in UX/UI design, full-stack development, AI/ML, and digital transformation, I deliver tailored solutions that drive growth and innovation. Services: ✔ UX/UI Research & Design ✔ Frontend Development: React.js, Vue.js, Node.js, TypeScript, Angular ✔ Backend Development: Python (Django), Node.js, PHP (Laravel), .NET ✔ Mobile App Development: Flutter, React Native ✔ WordPress & Custom Software Development ✔ Digital Business Transformation & Automation ✔ AI & Machine Learning Solutions ✔ E-commerce Development: Shopify, Magento ✔ GPS Tracking & Virtual Reality Applications ✔ 3D Designs ✔ Electrical Engineering Let's collaborate to bring your vision to life—whether it's launching a new product, optimizing an existing platform, or leveraging AI for smarter business solutions. Get in touch to discuss your project!

Algorithm PHP C Programming Java JavaScript

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Jianchun M.

4.9

4.8

100%

Melbourne, Australia

$120 USD per hour

I like to use Python to solve problems like dealing with data, reverse engineering and etc. I’m also using Python to write web spiders to do content crawling and data analysis.

Algorithm PHP C Programming JavaScript Python

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Timothy G.

4.9

5.2

89%

Petersham, Australia

$50 USD per hour

15+ years of C# development UI/UX design and code implementation Visual effects, animation and compositing VR (Virtual Reality) and AR (Augmented Reality) Software development strategy and planning Project management, team mentoring and training

Algorithm .NET Audio Services C# Programming Software Architecture

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Russell R.

5.0

2.9

100%

Melbourne, Australia

$30 USD per hour

I am an electrical engineer and currently working as a Researcher towards PhD degree at Swinburne University of Technology in Melbourne, Australia.

Algorithm Engineering Electronics Matlab and Mathematica Scientific Research

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Muhammad Hussain B.

5.0

5.8

100%

Melbourne, Australia

$40 USD per hour

I have almost 12+ years of exeprience in Dynamics Ax as a developer including Dynamics 365 F&O. I have pretty good exeprience in X++, also SSRS reports. I have worked on different versions of AX ranging from AX4.0, AX2009, AX2012 R3 and D365 F&O. I have also worked as a vendor of Microsoft. I have also worked on VAR layer, USR layer in AX. Have done development on different modules like financials, production, payroll, inventory, HR,AP, AR, GL, Project management and accounting and Bank management.

Algorithm C Programming Data Processing Data Entry Accounting

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Clients rate our Algorithm Experts

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How to hire a great freelance Algorithm Expert

An algorithm expert is a specialist who designs, analyzes, and optimizes computational procedures that solve specific problems efficiently in terms of time, space, and accuracy. Hiring an algorithm expert means bringing in a freelancer who can translate complex logic, mathematics, and data structures into working code that performs reliably at scale. Whether you need a faster search routine, a smarter recommendation engine, or a provably correct optimization model, an algorithm specialist delivers the underlying engineering that makes software actually work.

What an algorithm expert delivers

Algorithm experts produce more than code. They produce reasoned, measurable improvements to how a system processes data and makes decisions. Their deliverables typically address performance bottlenecks, computational correctness, or modelling problems that off-the-shelf libraries cannot solve cleanly.

Common deliverables include:

Custom algorithm design with documented complexity analysis (Big O notation for time and space)

Refactored code that reduces runtime, memory usage, or API costs

Pseudocode, flowcharts, and technical specifications for engineering teams

Implementation in languages such as Python, C++, Java, Go, or Rust

Unit tests, benchmarks, and reproducible performance reports

Optimization models for scheduling, routing, packing, or resource allocation

Machine learning model tuning, feature engineering, and inference optimization

Cryptographic algorithm implementation and review

Competitive programming solutions, technical interview prep, and coding tutorials

Core areas of algorithm specialization

The field is broad. Most algorithm experts focus on one or two areas and can advise across the rest. When scoping your project, identify which branch matches the problem you need solved.

Data structures and classical algorithms: trees, graphs, hash tables, dynamic programming, greedy methods, divide and conquer

Graph algorithms: shortest path (Dijkstra, A*), network flow, minimum spanning trees, community detection

Optimization: linear programming, integer programming, mixed-integer optimization, metaheuristics such as genetic algorithms, simulated annealing, and tabu search

Machine learning algorithms: gradient boosting, neural networks, clustering, dimensionality reduction, reinforcement learning

Cryptography: AES, RSA, elliptic curve cryptography, hashing, zero-knowledge proofs

String and text algorithms: pattern matching, suffix arrays, edit distance, tokenization

Computational geometry: convex hulls, spatial indexing, collision detection

Parallel and distributed algorithms: MapReduce, GPU computing with CUDA, concurrent data structures

Tools, languages, and frameworks

Algorithm work spans many environments. A capable freelancer is fluent in the language your stack already uses and the analysis tools that prove their solution works.

Languages: Python, C++, Java, C#, Go, Rust, MATLAB, R, Julia

Scientific and numerical libraries: NumPy, SciPy, NetworkX, pandas, Eigen, Boost

Optimization solvers: Gurobi, CPLEX, OR-Tools, PuLP, CVXPY

Machine learning frameworks: TensorFlow, PyTorch, scikit-learn, XGBoost, LightGBM

Profiling and benchmarking: gprof, Valgrind, perf, cProfile, Google Benchmark

Version control and collaboration: Git, GitHub, GitLab

Competitive programming environments: Codeforces, LeetCode, ICPC archives

Industries and use cases

Algorithm experts are hired across nearly every data-driven sector. Typical engagements include:

Fintech: high-frequency trading logic, risk modelling, fraud detection

Logistics and supply chain: vehicle routing, warehouse slotting, demand forecasting

E-commerce: recommendation engines, dynamic pricing, search ranking

Gaming: pathfinding, procedural generation, AI behavior trees, matchmaking

Healthcare and bioinformatics: sequence alignment, medical image processing, scheduling

Cybersecurity: cryptographic protocols, anomaly detection, intrusion analysis

Robotics and autonomous systems: SLAM, motion planning, sensor fusion

Academic and research support: reproducing papers, prototyping novel methods, thesis assistance

How to evaluate algorithm freelancers

Strong candidates show formal training in computer science, mathematics, or a related quantitative field, plus demonstrable problem-solving experience. Look for portfolio evidence such as competitive programming rankings, published research, open-source contributions, or shipped production systems with measurable performance gains.

Key signals to check:

Ability to articulate time and space complexity for any solution they propose

Familiarity with profiling tools and a habit of benchmarking before and after changes

Clean, documented code with unit tests

Past projects in a domain similar to yours

Ratings on Codeforces, TopCoder, Kaggle, or similar platforms (where relevant)

Degrees or coursework in algorithms, discrete mathematics, or operations research

Sample interview questions you can copy and use:

Walk me through the time and space complexity of the approach you would take for this problem.

Have you implemented a similar algorithm in production, and what trade-offs did you make?

How would you benchmark and validate that your solution outperforms the existing implementation?

What edge cases would concern you most with this dataset, and how would you handle them?

Can you explain your reasoning for choosing this data structure over alternatives?

Why hire algorithm experts on Freelancer.com

Freelancer.com gives you access to a global pool of algorithm specialists, from PhD researchers to seasoned competitive programmers and senior software engineers. You can review verified profiles, portfolios, ratings, and past project history before you commit. Because freelancers on Freelancer.com bid on your project, you receive multiple competitive proposals and choose the candidate whose technical approach and budget fit best.

The platform supports milestone-based payments, in-app messaging, file sharing, and time tracking, so technical engagements stay organized from kickoff to delivery. Whether you need a one-off algorithmic fix or a long-term research collaborator, Freelancer.com matches you with talent across every time zone and specialization.

Post a project on Freelancer.com today and connect with skilled algorithm experts ready to design, implement, and optimize the logic at the heart of your software.

What are the steps to hiring a freelance algorithm expert?

Hiring an algorithm specialist is straightforward when you treat the brief as a technical specification rather than a wish list. The steps below help you attract qualified bidders, compare proposals on substance, and choose a freelancer whose approach holds up to scrutiny.

Step 1: Post your project on Freelancer.com

The clarity of your project post directly determines the quality of the bids you receive. Algorithm specialists need enough technical detail to estimate complexity, runtime, and effort, so a vague brief filters out the most rigorous candidates and attracts guesswork. Head to the post project page , fill in the brief, scope, timeline, and budget, and publish your project for freelancers to bid on.

State the problem precisely, including inputs, outputs, and any mathematical formulation

Specify performance targets such as maximum runtime, memory limits, or accuracy thresholds

Name the preferred programming language, libraries, or solvers

Indicate data scale: number of records, request rate, or dataset size

Attach sample data, existing code, or reference papers where possible

Define deliverables: source code, unit tests, benchmark report, documentation

Step 2: Review bids from freelancers

Bids from algorithm experts are short technical proposals. A strong proposal shows the freelancer has read the brief, understood the computational challenge, and can sketch an approach with realistic complexity expectations. Use this stage to read each proposal carefully and shortlist candidates whose reasoning matches your problem.

Look for a proposed approach, not just a price quote — for example, a named algorithm or data structure

Check whether the bidder asks intelligent clarifying questions about scale, constraints, or data shape

Evaluate the realism of the proposed timeline against the complexity of the work

Confirm familiarity with the relevant tools, such as Gurobi, OR-Tools, PyTorch, or your target language

Review any sample work, GitHub repositories, or competitive programming profiles attached

Use Freelancer.com chat to discuss approach, edge cases, and trade-offs before shortlisting

Step 3: Evaluate freelancers and award the project

Final selection combines proposal quality with profile evidence. A single impressive piece of work matters less than consistent delivery across many projects, especially in algorithm work where correctness is hard to fake. Weigh ratings, written reviews, and portfolio depth alongside the technical proposal.

Review portfolio for projects similar in domain, scale, or algorithmic complexity

Check star ratings, completion rate, and the volume of completed projects

Read written client reviews for comments on accuracy, communication, and on-time delivery

Confirm verified payment method and identity badges

Look at on-time delivery rate and rehire rate as signals of reliability

Award the project and use Freelancer.com Milestone Payments to release funds only when each agreed deliverable is met

What is the difference between an algorithm expert and a software developer?

A general software developer builds applications using existing libraries and frameworks, while an algorithm expert specializes in designing the underlying logic that solves a specific computational problem efficiently. You hire an algorithm specialist when an off-the-shelf solution is too slow, too inaccurate, or simply does not exist for your problem.

How long does an algorithm project typically take?

Scope varies widely. A focused optimization or bug fix can take a few days, while designing a custom routing engine, recommendation system, or research-grade implementation can take several weeks of design, coding, and benchmarking. Sharing a clear problem statement and sample data up front shortens the timeline considerably.

Can I hire an algorithm expert for a one-off problem?

Yes. Many engagements on Freelancer.com are short, single-deliverable projects, such as optimizing a slow function, reviewing a complexity analysis, implementing a published paper, or preparing for a technical interview. You can also keep the same freelancer on retainer if more work emerges.

Do I need to share my source code to get useful help?

Often yes, but not always. For optimization or refactoring work, the freelancer needs to see the existing implementation. For greenfield algorithm design, a clear problem specification, expected inputs and outputs, performance targets, and sample data are usually enough. Use the chat to agree on what to share before kickoff.

What should I provide to get accurate bids?

Provide the problem statement, current performance metrics if any, expected scale (data size, request volume), preferred language or stack, and any constraints such as memory limits or hardware targets. The more concrete the brief, the more accurate and comparable the bids you receive.