Blockchain Developer (Nodejs)

Company Description

MarsDevs is a remote-first, offshore digital product development company, committed to delivering high-quality code and long-lasting technical architectures. We specialize in building MVPs, mobile and web applications, and SaaS products for startups and SMBs. Our services include systematic project analysis, UI/UX design, technical consulting, application deployment, and ongoing support. Based in India, MarsDevs has successfully delivered over 60 solutions across 10 countries and 12 industry verticals in the last four years.

...............................Only Apply If you are available for a contractual role...........................................

Backend Developer (Node.js + Web3 + AI)

Key Responsibilities

• Build, maintain, and scale backend services powering our

  AI Signals platform

  .
• Develop

  Node.js-based APIs and microservices

  with high performance and security.
• Integrate

  Web3 functionality

  – wallet creation, crypto transactions, on/off-ramp payment utilities.
• Collaborate with

  product and frontend teams

  to ship reliable and scalable features.
• Ensure

  secure deployments

  and best practices in cloud environments.
• Quickly adapt to new integrations and ramp up on

  crypto wallet/payment flows

  as needed.

Requirements

• 4+ years of backend development

  , with strong hands-on experience in

  Node.js

  (Python or Go is a bonus).
• Proven experience with

  crypto wallets

  (create, deposit, withdraw, transfer, transaction history).
• Understanding of

  blockchain utilities, smart contract interaction, and crypto payment services.

• Strong knowledge of

  RESTful APIs, microservices architecture, and cloud deployment (AWS/GCP/Azure).

• Ability to

  learn fast, troubleshoot deeply, and adapt to Web3-specific requirements.

Nice to Have

• Experience building or integrating

  HD (Hierarchical Deterministic) wallets.

• Prior work in

  Web3, DeFi, or blockchain-based products.

• Familiarity with

  AI-driven systems or data-heavy applications.

What We Offer

• Work at the

  cutting edge of AI + Web3 innovation.

• End-to-end ownership

  of backend systems and architecture.
• A

  flexible, product-focused, and collaborative

  work culture.
• Opportunity to build

  real-world crypto solutions

  used at scale.