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Backend ( + Web3 + Java) Developer
3 weeks ago
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 + Web3 + AI)
Key Responsibilities
- Build, maintain, and scale backend services powering our
AI Signals platform
. - Develop
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
(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.