Mid-Level Crypto Developer
Position: Mid-Level Crypto Developer
Location: Hybrid at Porto city center
Start Date: Immediate
We’re looking for a Crypto Developer with solid experience in blockchain technologies and strong technical skills in Java
Script/Type
Script to join our team. If you’re passionate about decentralized tech, security, and innovative financial experiences, we’d love to hear from you!
What We're Looking For:
Crypto Knowledge & Experience:
- Creating and managing custodial wallets
- Integrating On-Ramp and Off-Ramp solutions (e. g. , Transak, Moon
Pay) - Working with the Lightning Network (channels, invoices, nodes)
- Good understanding of crypto security, privacy, and KYC/AML practices
Tech Skills:
- Java
Script & Type
Script - Node. js (Express, external service integrations, backend logic)
- Relational Databases (Postgre
SQL or My
SQL) with solid SQL skills - No
SQL Databases (Mongo
DB or Dynamo
DB) - Designing and consuming RESTful APIs
- Version control with Git (branching, pull requests, code reviews)
What You’ll Be Doing:
- Develop and maintain crypto infrastructure (wallets, payments, partner integrations)
- Collaborate with the product and frontend teams to create seamless, secure crypto experiences
- Build and document APIs for crypto operations
- Contribute to technical and architectural decisions
Requirements:
- 2–4 years of experience in web development
- Hands-on experience with crypto products (previous jobs,
- source projects, or personal work) - Strong communication skills and ability to work in a team
Nice to Have:
- Experience with AWS (especially Lambda, Dynamo
DB, S3) - Knowledge of backend security best practices (authentication, rate limiting, data encryption)
- Informações detalhadas sobre a oferta de emprego
Empresa: Only High IQ Localização: Porto
Porto, Porto District, PortugalPublicado: 9. 7. 2025
Vaga de emprego atual
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