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...........................................
About the Role :
We are looking for a skilled Backend Developer with strong Node.js and Web3 experience to help build and scale our blockchain-based applications. You will work closely with our product and frontend teams to create secure, high-performance services that power real-world crypto solutions.
Key Responsibilities :
Develop and maintain backend services using Node.js.Integrate Web3 functionalities such as crypto wallets, transactions, and payment utilities.Design and implement secure APIs and microservices.Collaborate with cross-functional teams to deliver scalable features.Ensure cloud deployments follow best practices for security and performance.Quickly adapt to new blockchain integrations and evolving crypto workflows.Requirements :
4+ years of backend development experience with Node.js (Python or Go is a plus).Hands-on experience with crypto wallets (create, deposit, withdraw, transfer, transaction history).Understanding of blockchain utilities, smart contract interactions, and crypto payment services.Strong knowledge of RESTful APIs, microservices, and cloud deployment (AWS / GCP / Azure).Fast learner, problem solver, and adaptable to Web3-specific requirements.Nice to Have :
Experience with HD (Hierarchical Deterministic) wallets.Prior work in Web3, DeFi, or blockchain-based products.What We Offer :
Work on innovative Web3 projects at scale.Ownership of backend systems and architecture.Flexible and collaborative work culture.Opportunity to build real-world crypto solutions used by global users.