Ver categorias
Explorar
Fiverr Pro
Português
$
USD
I will develop a secure crypto wallet app and website like coinbase or trust wallet
Full Stack and Blockchain Engineer for Fintech and Wallet Systems
I’m a Senior Full Stack and Blockchain Engineer with 6+ years of experience building secure fintech and Web3 systems. I develop crypto exchanges, wallet infrastructure, DeFi platforms, and scalable Sa...
Nível 2
Atendeu a critérios de alto desempenho e tem um histórico comprovado de atendimento às expectativas dos clientes.
Sobre este Serviço
Looking for a production-ready cryptocurrency wallet? I build enterprise-grade crypto wallet solutions with multi-chain support and institutional security.
Core Features: Responsive wallet dashboard, send/receive crypto, multi-address generation, transaction history, support system.
Premium Features: KYC verification, multi-signature security, real-time price charts, portfolio analytics, and swap/trading functionality.
Supported Blockchains: Bitcoin, Ethereum, Solana, TRON, BNB Chain, Polygon, XRP, Litecoin, Dogecoin, and 20 more blockchains are supported. ERC-20, BEP-20, TRC-20, SPL tokens and NFTs are also supported.
Security Options: Multisig, MPC/TSS key management, hardware wallet integration, custodial & non-custodial, and policy-based controls.
Why me? 6+ years of blockchain development. Platforms serving 300K+ users. Built complete exchanges, payment gateways, and wallet infrastructure, not templates.
Also Available: Crypto exchange, P2P platform, DeFi, DEX, smart contracts, and payment gateway development.
Message for custom requirements.
Tipo de Carteira:
Carteira Digital Mobile
Sistema operacional:
iOS
•
Android
•
Linux
Linguagem de Programação:
Node.js
Meu portfólio
Outros serviços de Criptomoedas e Tokens que eu ofereço
Perguntas frequentes
What tech stack do you use?
Node.js, NestJS, React.js/Next.js for frontend, PostgreSQL/ MongoDB and Redis for data, and native blockchain libraries for wallet operations. Mobile apps built with React Native. All production-grade, scalable architecture.
Is this a template or custom development?
100% custom development. No templates, no forks, no clones. Every wallet is built from scratch with your specific requirements, branding, and security needs.
Can I charge custom fee for each transaction ?
Yes, you can charge custom fee for each transaction.
How do you handle private key security?
Multiple options based on your needs: MPC (Multi-Party Computation) where keys are never stored whole, HSM/secure enclave integration, multisig setups, or non-custodial architecture where users control their own keys.
Can you integrate with existing systems?
Yes. I can integrate with your existing backend, exchange APIs, payment processors, KYC providers, and third-party services. Full API documentation provided.
Do you provide source code and documentation?
Yes, you receive complete source code ownership, technical documentation, deployment guides, and post-delivery support to ensure smooth handover.
How long does development take?
Core wallet: 2-4 weeks. Full-featured: 4-8 weeks. Enterprise multi-chain platform: 8-16 weeks. The timeline depends on specific requirements.
Avaliações
35 avaliações deste Serviço
| (35) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Recomendar a um amigo
- Serviço conforme a descrição
Ordenar por
Mais relevante
U usmaniftikha889
Paquistão
you are an outstanding bro , I really appreciate your work and response
US$ 100-US$ 200
Preço
8 dias
Tempo
Útil?L lokkart
Nigéria
I was highly impressed by Nawab's proficiency in handling code issues in record time. Will definitely be hiring again!
US$ 50
Preço
1 dia
Tempo
N 
Resposta do freelancer
Útil?F 
fasih12
Canadá
Completed my order quickly and properly
US$ 100-US$ 200
Preço
Útil?I 
idobuiznz
Emirados Árabes Unidos
An idea that for a long time seemed too big and complex for me has become reality through Nawab. He has extreme coding skills. Also very friendly and patient. Nothing I could complain about. I order again right now. +++
US$ 800-US$ 1.000
Preço
Útil?S shawnott816
Estados Unidos
Outstanding!!!!! Will definitely continue to do business with him. He is very knowledgeable, and di an excellent job developing a smart contract and deploying, as well as sit application to show functionality. We would HIGHLY recommend.
US$ 1.000-US$ 2.500
Preço
Útil?
Avaliações
35 avaliações deste Serviço
| (35) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Recomendar a um amigo
- Serviço conforme a descrição
Ordenar por
Mais relevante
U usmaniftikha889
Paquistão
you are an outstanding bro , I really appreciate your work and response
US$ 100-US$ 200
Preço
8 dias
Tempo
Útil?L lokkart
Nigéria
I was highly impressed by Nawab's proficiency in handling code issues in record time. Will definitely be hiring again!
US$ 50
Preço
1 dia
Tempo
N Resposta do freelancer
Útil?F fasih12
Canadá
Completed my order quickly and properly
US$ 100-US$ 200
Preço
Útil?I idobuiznz
Emirados Árabes Unidos
An idea that for a long time seemed too big and complex for me has become reality through Nawab. He has extreme coding skills. Also very friendly and patient. Nothing I could complain about. I order again right now. +++
US$ 800-US$ 1.000
Preço
Útil?S shawnott816
Estados Unidos
Outstanding!!!!! Will definitely continue to do business with him. He is very knowledgeable, and di an excellent job developing a smart contract and deploying, as well as sit application to show functionality. We would HIGHLY recommend.
US$ 1.000-US$ 2.500
Preço
Útil?
