Browse categories
Explore
Fiverr Pro
English
$
USD
Aleksandar S
@aleksandar314
Level 2
Senior Full stack Blockchain developer
Serbia
English
About me
I am a seasoned blockchain developer with 7 years of experience building decentralized applications and smart contracts. My track record spans a diverse set of projects across multiple networks, reflecting a deep understanding of the blockchain landscape. I prioritize collaboration, continuous improvement, and adaptability to the rapidly evolving tech environment.
I believe great work comes from mutual growth—when you succeed, I succeed.
Let’s turn your ideas into real outcomes.
Thank you
Skills
Aleksandar S
$50/hour
Offline •
Average response time: 2 hours
See my services
Decentralized Applications (dApps)
I will be blockchain developer for solana game like ore, godl supply, raffle
Decentralized Applications (dApps)
I will be blockchain developer for polymarket bot, open claw, clawd bot, pumpfun bot
Want to work on an hourly basis?
Tell Aleksandar S what you need.
$50
/
hourPortfolio
Work experience
Polymarket Bot Developer | Crypto Trading Automation Specialist
PATTIE WALDEN • Freelance
Feb 2026 - Feb 2026 • 0 mos
I specialize in developing high-performance trading bots for Polymarket, the leading decentralized prediction market platform. With a strong background in Python, Web3, and smart contract interaction, I create automated solutions that execute complex trading strategies with precision and speed. Key Achievements & Experience: Developed arbitrage bots that identify and capitalize on price discrepancies across multiple Polymarket markets simultaneously. Built custom market-making algorithms for liquidity providers, optimizing spread capture and inventory management. Created trend-following bots that analyze real-time data feeds to automate "Yes/No" position entries and exits. Successfully deployed bots for clients ranging from retail traders to DeFi funds, resulting in increased trading efficiency and profitability.
95 Reviews
| (94) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 95 Reviews
Sort By
Most relevant
mateo_clark820
Canada
Fantastic work from Aleksandar. I hired him to build a bot for 5-minute Polymarket markets. He delivered on time, the bot runs perfectly, and it has been consistently profitable. If you need a developer who can handle DeFi and trading bots, look no further. Highly recommended!
Helpful?
evie_owen54
Repeat Client
United Kingdom
I came to him with a bot that had some stability issues, and he turned it around completely. He took the time to understand how the bot was actually behaving in live conditions, fixed the core issues, and improved the execution logic so trades copy faster . Communication was honest throughout, and nothing...
Helpful?
evie_owen54
Repeat Client
United Kingdom
I’ve been using the Pump.fun copy trading bot developed by Aleksandar Stojanovic, and honestly, it’s a game-changer. Speed is everything in this space, and this bot is lightning fast. It picks up trades instantly. I’ve been running it for a while now, and the profitability is consistent. If you need...
Helpful?
evie_owen54
Repeat Client
United Kingdom
Aleksandar built the Clawd trading bot for me. It works through Telegram and handles trades based on chat commands. The bot responds fast, executes trades correctly, and has been running reliably since launch. He set it up so I can monitor positions and manage trades directly from Telegram without needing...
Helpful?
henry_lamb25
Repeat Client
United Kingdom
I had a fantastic experience working with Aleksandar. He developed a robust and fully-functional copy trading bot for Kalshi that worked exactly as I envisioned. He was professional, responsive, and delivered a high-quality product on time. I wouldn't hesitate to work with him again and highly recommend...
Helpful?
