Senior Blockchain Developer

3 days ago

tamil nadu, India Samsara (Blockchain Solutions) Full time

We’re hiring an experienced, pragmatic blockchain engineer to own core smart-contract development and backend integration work. You’ll build and test Solidity contracts (Foundry), implement secure MPC/BLS signing integrations, develop robust Python backend services that talk to exchanges and oracles, and help design production-grade token/stablecoin mechanics. You’ll be expected to ship high-quality, audited code and iterate quickly with product and security teams.


What you’ll do

  • Design, develop and maintain Solidity smart contracts (wallets, vaults, stablecoin logic, tokenomics).
  • Write thorough unit & integration tests using Foundry; fuzzing and property tests a plus.
  • Integrate smart contracts with Python backend services (attestations, session tokens, keeper/monitoring services).
  • Implement and integrate MPC/BLS signing flows with the backend and client SDKs.
  • Integrate with third-party APIs: price oracles, DEXs, CEXs, fiat on/off-ramps (REST/WebSockets).
  • Build secure mint/burn, collateral, liquidation, and fee systems for a stablecoin product.
  • Hardening, code review, working with auditors; help prepare audit packs and remediation.
  • Help run CI/CD, deployments, and maintain release processes for mainnet/testnets.
  • Mentor junior devs and drive engineering best practices.


Must-have

  • ≥5 years professional experience in blockchain development.
  • Strong Solidity skills and production experience writing & deploying EVM contracts.
  • Deep Foundry experience (writing tests, scripts, fuzzing).
  • Strong backend experience in Python (building API services, job/worker systems).
  • Experience integrating with CEX/DEX APIs and oracles.
  • Solid understanding of token mechanics, stablecoin design, and collateralized lending (LTV, liquidation).
  • Familiarity with MPC/TSS and/or BLS signing workflows (practical integration experience preferred).
  • Security-first mindset: experience with audits, threat modeling and secure development.
  • Excellent problem-solving, communication skills, and ability to work autonomously in a startup environment.


Nice-to-have

  • Experience with Account Abstraction / ERC-4337 and paymaster patterns.
  • Experience with OpenZeppelin, Clones (EIP-1167), UUPS/Beacon upgrade patterns.
  • Frontend exposure (JS/TS) or experience building SDKs or wallet integrations.
  • Experience with Chainlink or other oracle networks.
  • Familiarity with GitHub Actions / CI and Docker deployments.


What we offer

  • Meaningful equity for early hires (negotiable).
  • Up to ₹12 LPA depending on experience.
  • Opportunity to design and ship novel DeFi primitives used by everyday people.
  • Flexible/hybrid working arrangement, supportive team, and fast decision-making.
  • Hands-on role — influence product, security and go-to-market decisions from day one.


Interview process (typical)

  • Quick screening call (20–30m) — background & motivation.
  • Technical interview — Solidity & Foundry, system design (1–2 sessions).
  • Live/Take-home challenge — small Foundry test + Python integration task.
  • Final culture/compensation discussion.

  • Blockchain Architect

    7 hours ago

    Chennai, Tamil Nadu, India Luxoft Full time

    **Project description**: We are looking for a seasoned Blockchain Architect to lead the design and implementation of decentralized solutions. The role involves working with various blockchain platforms, smart contract development, and integrating blockchain with enterprise systems. **Responsibilities**: Develop smart contracts using platforms like Ethereum,...

  • Senior Java Developer

    21 hours ago

    tamil nadu, India Avisoft Full time

    Company DescriptionAvisoft (https://avisoft.io/) is a Technology and IT Services company based in Mohali and Jammu. We are the preferred cost-effective and quality remote tech partner for global businesses. We offer Product Engineering, IT Consultancy, Project Outsourcing and Staff Augmentation services.We partner with businesses to design and build Tech...

  • Content Writer

    2 days ago

    Chennai, Tamil Nadu, India CoinFantasy Full time

    CoinFantasy is looking for a passionate writer who will be a key contributor to the content marketing team with a focus on the development of our content strategy and producing high-quality long-form and short form content. You will have to develop engaging and unique content to excite existing users and inspire new users to our platforms. You should also...

  • Senior Content Editor

    1 week ago

    Ambattur, Chennai, Tamil Nadu, India Blockwoods Marketing Management (OPC) Private Limited Full time ₹ 3,60,000 - ₹ 8,40,000 per year

    Job descriptionRole: Senior Content EditorJob Type: Full-timeExp: 4- 6yrsLocation: Ambattur, ChennaiRequirements:Roles and responsibilities:Review and edit articles for grammar, spelling, punctuation, and style.Ensure clarity, coherence, and consistency in writing.Conduct meticulous final checks to catch any errors, inaccuracies, or formatting...

  • Growth Hacker

    2 days ago

    Chennai, Tamil Nadu, India CoinFantasy Full time

    **What we're looking for** CoinFantasy is looking for a Web3 Growth Marketing Specialist who can build and grow the CoinFantasy community on Discord, Twitter, Telegram and more. You will work closely with the marketing and product team to run events, drive conversations and educate people about our platform. **Responsibilities** - Craft global...

  • Content Editor

    7 hours ago

    Ambattur, Chennai, Tamil Nadu, India Blockwoods Marketing Management (OPC) Private Limited Full time

    Role: Senior Content Editor Exp: 5-6 yrs Location: Ambattur, Chennai(On-site) Roles and responsibilities: - Conduct meticulous final checks to catch any errors, inaccuracies, or formatting issues. - Verify the accuracy of information, perform fact-checking, and address any discrepancies. - Execute the final approval process for articles before...

  • Content Writer

    2 days ago

    Madurai, Tamil Nadu, India WeAlwin Technologies Full time

    We are seeking a skilled Content Writer with a strong understanding of content writing protocols and experience in blockchain technology. As a Content Writer, you will be responsible for creating compelling and informative content that adheres to industry standards and engages our target audience. Experience in blog writing, crafting user-friendly content,...

  • Senior ETL Developer

    5 days ago

    tamil nadu, India Kumaran Systems Full time

    Job Title: Senior ETL DeveloperExperience: 6+ YearsLocation: Chennai, Hyderabad and Bangalore Employment Type: Full-timeJob DescriptionWe are seeking an experienced Senior ETL Developer with strong expertise in Informatica to SSIS migration. The ideal candidate will be responsible for designing, developing, and implementing robust ETL processes, ensuring...

  • Senior Developer

    4 days ago

    Thiruporur, Tamil Nadu, India Infocareer Full time ₹ 20,00,000 - ₹ 25,00,000 per year

    The ideal candidate for this position will have a broad technical skillset and extensive experience SW development.Senior developer 1:7-9 years experience in Java, Spring boot, APIs, Cloud integrations, AWS, Mongo DB, Postgre SQLSenior developer 2:7-9 years experience in JBPM, Drools, Spring boot, AWS & Mongo DB. Expertise in designing, maintaining,...

  • Senior Developer

    3 weeks ago

    Chennai, Tamil Nadu, India Barclays Full time

    Be a part of a place where challenges are measured in billions qubits and nanoseconds Build your career in an environment where we re advancing machine learning leveraging blockchains and harnessing FinTech Working in Barclays technology you ll reimagine possibilities learning and innovating to solve the challenges ahead delivering for millions of...