Telegram Bot SDK Upgrade and Bug Fixes
41 USDSwaptain is a Telegram-based cryptocurrency swapping bot built with Bun, TypeScript, grammY, and deployed on Railway.com with Prisma for session storage. It uses Swapkit SDK to provide cross-chain swaps. A previous contractor began upgrading the bot from SwapKit v1 → v4 and completed most of the migration work. However, several critical issues remain unresolved, preventing reliable use in production.
Swaptain is seeking a qualified agency or developer to complete the migration, fix the remaining errors, and deliver a fully working and tested Telegram bot.
The prior team completed significant parts of the v4 upgrade but did not finish the task. The main known issues include:
General Bug Fixing
Quotes intermittently not showing
Transactions failing or not executing reliably
Incorrect or missing balance display
Potential state-handling or listener issues in bot scenes
Remaining cleanup related to new SwapKit v4 asset/chain types
General stability/performance issues across flows and improvements to be made.
You will be given full access to the GitHub repo, Railway.com environment, env keys, and deployment logs.
In your proposal, please include:
Experience with Cryptocurrencies
Relevant experience with SwapKit, cross-chain swap frameworks, or similar SDKs
Experience with grammY, Telegram bots, Bun/Node, Railway.com, and Prisma
Estimated timeline to complete the migration & debugging
Pricing model (fixed, hourly, milestone-based)
Examples of similar projects or references if available
Client's review of cooperation with Andrey K.
Telegram Bot SDK Upgrade and Bug FixesAndrey works efficiently and professionally. Would definitely recommend working with him!
Freelancer's review of cooperation with Pascal Burgwal
Telegram Bot SDK Upgrade and Bug FixesGreat client! Very polite and always responsive. I recommend working with Pascal.
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5 days116 USD
3237 23 1 2 5 days116 USDTackling unresolved issues post-migration can be daunting, but together, we can bring reliability to Swaptain's Telegram bot. As a developer with extensive experience in blockchain solutions and SDK integration, I specialize in transforming complex challenges into seamless functionality. By focusing on fixing quotes inconsistency and transaction reliability, I'll ensure solid performance for your users. My past work with Prisma and Railway.com will streamline debugging, allowing us to prioritize swift resolution and improved stability. Excited to collaborate further!
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4 days116 USD
2259 5 1 4 days116 USDHello! I have reviewed your assignment and believe that I can successfully complete it. I would be happy to collaborate, please write to me personally for further details.
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7 days174 USD
475 2 0 7 days174 USDready to help you out
will share previous bot projects in chat to see if we match
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2 days29 USD
1455 8 0 2 days29 USDGood day, I have experience working with Python as well as Telegram bots, I can complete everything quickly and efficiently, write to me and we will discuss the details.
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