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English
$
USD
I will solve data structures and algorithms projects in java, python, or js
Ali Usman
5.0
5.0
About this gig
Struggling with complex Data Structures and Algorithms (DSA)? Whether you are a student preparing for coding interviews or a professional needing optimized backend logic, I provide high-performance solutions in Python, Java, and JavaScript.
I specialize in converting abstract logic into efficient, clean code. Every solution I deliver includes a detailed breakdown of Time and Space Complexity (Big O Notation) to ensure your project is scalable and industry-standard.
Technical Expertise
- Data Structures: Linked Lists, Graphs (BFS/DFS), Binary Search Trees (BST), Heaps, and Hash Tables.
- Algorithm Design: Dynamic Programming (DP), Greedy Algorithms, Backtracking, and Sorting/Searching.
- Graph Specialist: Solving complex shortest path problems, network flow, and topological sorting.
- Interview Prep: Expertise in LeetCode, HackerRank, and Codeforces style challenges.
️ My Development Workflow
- Requirement Analysis: Deep dive into the problem constraints.
- Logic Drafting: Designing the most efficient algorithmic approach.
- Clean Implementation: Writing modular code in Java, Python, or JavaScript.
- Optimization: Refactoring for maximum efficiency.
Get to know Ali Usman
Ali Usman
Software Engineer
- FromPakistan
- Member sinceJan 2023
- Last delivery2 years
Languages
English, Hindi, Urdu
I am a Professional Software Engineer and Web Developer with 2+ years of hands-on experience in building modern, scalable, and responsive web applications. I specialize in frontend and full-stack development, using technologies like HTML, CSS, JavaScript, React.js, Next.js, Node.js, and Express.js.
I have worked with startups and global users, delivering clean, user-friendly, and performance-optimized websites. My experience also includes API development, database integration (MongoDB & MySQL), and deploying applications using modern tools.
My Portfolio
FAQ
Which programming languages do you specialize in?
I am an expert in Python, Java, and JavaScript. Whether you need a backend script in Python, a robust Object-Oriented (OOP) system in Java, or complex logic in JavaScript, I ensure the code is clean, optimized, and follows industry best practices.
Can you help me understand the time and space complexity of the code?
Absolutely! Every solution I provide includes a detailed Big O Notation analysis. I explain the Time Complexity and Memory Usage of the algorithm to ensure you understand why a specific Data Structure (like a Hash Map or a Heap) was chosen for efficiency.
Is this gig suitable for coding interview preparation?
Yes! If you are a student or professional preparing for technical interviews at top tech companies, I can provide step-by-step explanations for LeetCode, HackerRank, and Data Structure problems to help you master the problem-solving patterns required to succeed.
Reviews
2 reviews for this Gig
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R rawan99aljabri
Oman
Exlent good jop
Up to $50
Price
4 days
Duration
Helpful?T tahirjutt39
United Kingdom
I recently worked with @harrial on a project, and I'm thrilled with the results. The quality of work, communication, and timeliness were all top-notch. Highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
Reviews
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
R rawan99aljabri
Oman
Exlent good jop
Up to $50
Price
4 days
Duration
Helpful?T tahirjutt39
United Kingdom
I recently worked with @harrial on a project, and I'm thrilled with the results. The quality of work, communication, and timeliness were all top-notch. Highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
