Explorar las categorías
Explora
Fiverr Pro
Español
$
USD
I will build your web3 application and solidity smart contracts
Senior Backend and Web3 Engineer
30 min FREE CONSULTATION — Tell me about your project and I'll help identify the right technical approach.
NEED HELP BUILDING OR SCALING YOUR PRODUCT?
I'm a Software Engineer & Solutions Architect w...
Acerca de este Servicio
30 min FREE CONSULTATION -- Tell me about your project, the problem you're facing, or the system you want to build. I'll help you understand the best technical approach before we start.
BUILD YOUR SMART CONTRACT OR WEB3 APPLICATION
Need a Solidity smart contract, want to integrate an existing contract into your application, or need help building a complete Web3 product?
I provide end-to-end Solidity & EVM development, covering both smart contracts and the software required to integrate them into real applications.
With 5+ years of professional software engineering experience and experience developing Solidity smart contracts since 2019, I can work across both the on-chain and off-chain components of your project.
WHY WORK WITH ME?
- Solidity & EVM experience since 2019
- Strong backend & software architecture background
- 5+ years of professional software engineering experience building real-world applications, backend systems and technical solutions across Art & Heritage, Fashion & Luxury, Defense & Military, Healthcare working with very different business requirements, technical constraints and types of users.
- Clear communication from requirements to delivery
Mantenga sus activos e información seguros
Los servicios de criptomonedas se centran de manera exclusiva en el desarrollo y la programación. No se debe compartir información confidencial ni claves privadas con otras personas.
Cómo funciona
Estos son los pasos para completar tu Paquete Básico Proyecto:
- 1
First step We will ask you to give us a general explanation about your idea.
- 2
Video meetup We'll meet up by a video call to discuss your project face-to-face. Our work methodology involves a great use of face-to-face contact with the customer.
- 3
Concept We will design one or more fully custom concepts based on your idea you will choose the one that suits you best. We won't move on to the next step until you are satisfied with the concept.
- 4
Development We will develop your project and deliver a working product for your review.
- 5
Delivery You'll review the final delivery and see if you need changes.
- 6
Post-Delivery Support We will always be available to provide you technical support even after delivery, your satisfaction is our priority.
FAQ
What blockchains do you work with?
I primarily work with Ethereum and EVM-compatible networks such as BNB Smart Chain (BSC), Base, Polygon, Arbitrum and Optimism. Contact me if you have a specific network in mind.
Can you build more than just the smart contract?
Yes. My background is in backend engineering and software architecture, so I can work on both the on-chain and off-chain components of your Web3 product, including Node.js/TypeScript backends, APIs, databases and blockchain integrations.
Can you add Web3 functionality to an existing Web2 application?
Yes. I can integrate wallets, smart contracts, token functionality, blockchain transactions and on-chain data into an existing application without requiring the entire product to be rebuilt.
Can you work with tight deadlines?
Yes. If you have a deadline, contact me with your requirements and timeline. I'll evaluate the scope and let you know what's realistically achievable.
Can I place a custom order?
Yes! Please don't feel confined by the packages, We also do custom offers. Make sure to message us with your request.
Do you provide support after delivery?
Yes. I provide post-delivery support to help ensure everything works as expected and to address issues related to the delivered work. If you need ongoing maintenance, updates, new features or further development, we can also arrange continued support separately.
Reseñas
9 comentarios sobre este Servicio
| (8) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Desglose de calificaciones
- Nivel de comunicación del Freelancer
- Recomendar a un amigo
- Servicio según lo descrito
Ordenar por
Más relevante
N 
nft_first_
Reino Unido
Brilliant guy, worked on everything I asked for and completed it at a high standard! Would work with him again.
USD 200-USD 400
Precio
Útil?U user04078743
Italia
Gentile, veloce e molto disponibile.
USD 600-USD 800
Precio
Útil?W web3nerd
Italia
Professional team
USD 600-USD 800
Precio
Útil?M musesubdued
Francia
Bestcontracts were a pleasure to work with. They communicated effectively and produced a high quality product at a very competitive price. I would highly recommend their services to anyone seeking solidity work.
USD 50-USD 100
Precio
Útil?M 
mentorfinanc3_
Estados Unidos
Colaboración continuaIncredible experience. This team produced fantastic results and were so helpful every step of the way. They took the challenge of creating something unique and innovative and their abilities shined. I will 100% be working with them again.
USD 100-USD 200
Precio
Útil?A 1 persona le resultó útil esta reseña.
Reseñas
9 comentarios sobre este Servicio
| (8) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Desglose de calificaciones
- Nivel de comunicación del Freelancer
- Recomendar a un amigo
- Servicio según lo descrito
Ordenar por
Más relevante
N nft_first_
Reino Unido
Brilliant guy, worked on everything I asked for and completed it at a high standard! Would work with him again.
USD 200-USD 400
Precio
Útil?U user04078743
Italia
Gentile, veloce e molto disponibile.
USD 600-USD 800
Precio
Útil?W web3nerd
Italia
Professional team
USD 600-USD 800
Precio
Útil?M musesubdued
Francia
Bestcontracts were a pleasure to work with. They communicated effectively and produced a high quality product at a very competitive price. I would highly recommend their services to anyone seeking solidity work.
USD 50-USD 100
Precio
Útil?M mentorfinanc3_
Estados Unidos
Colaboración continuaIncredible experience. This team produced fantastic results and were so helpful every step of the way. They took the challenge of creating something unique and innovative and their abilities shined. I will 100% be working with them again.
USD 100-USD 200
Precio
Útil?A 1 persona le resultó útil esta reseña.
