Mid-Level Crypto Developer - Porto

Mid-Level Crypto Developer
Porto
Porto, Porto District, Portugal

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: