{"id":1285295,"url":"https://alion.io/job/auro-digital-inc-blockchain-developer","title":"Blockchain Developer","company":{"id":3800161,"name":"Auro Digital INC","domain":"auroim.com","url":"https://alion.io/company/auro-digital-inc","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Web3","role_family":"Web3","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Delhi, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":25000,"max_usd":51000,"period":"year","method":null,"sample_n":60},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"DeFi","optional":false},{"name":"Ethereum","optional":false},{"name":"Ethers.js","optional":false},{"name":"Foundry","optional":false},{"name":"Git","optional":false},{"name":"Go","optional":false},{"name":"Hardhat","optional":false},{"name":"Rust","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Solidity","optional":false},{"name":"Token Standards","optional":false},{"name":"WebSockets","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-08-17T07:31:09Z","employer_posted_date":null,"last_verified_at":"2026-08-17T07:31:09Z","board_verified":false,"closed_at":null,"days_open":43,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":43},"description":"About the Role : \n\nQuadblock develops institutional-grade blockchain and DeFi infrastructure, including DEX aggregation, liquidity routing and reliable on-chain transaction-execution systems. We are looking for a skilled Blockchain Developer to join the Quadblock Engineering team to build and scale our DEX aggregation infrastructure, smart contracts, blockchain integrations and transaction-execution systems.\n\nKey Responsibilities : \n\n- Design, develop, test and maintain blockchain applications, infrastructure and Solidity smart contracts.\n\n- Build DEX aggregation capabilities covering quote generation, liquidity discovery, path optimisation, routing and swap execution.\n\n- Integrate DEXs, AMMs, liquidity pools, aggregators and DeFi protocols across EVM-compatible networks.\n\n- Develop multi-hop and multi-DEX routing strategies considering liquidity, fees, price impact, slippage and gas costs.\n\n- Build reliable systems for transaction construction, simulation, gas estimation, signing and execution.\n\n- Develop high-performance blockchain and backend services using Rust and/or Go.\n\n- Work with blockchain nodes, RPC providers, WebSockets, event logs, indexing systems and real-time on-chain data.\n\n- Integrate wallets, token standards, smart-contract interfaces and external blockchain APIs.\n\n- Optimise system performance, gas consumption, routing quality, execution reliability and scalability.\n\n- Diagnose blockchain, smart-contract, RPC and production issues.\n\n- Write clean, secure, tested and well-documented code.\n\n- Participate in architecture planning, code reviews and sprint ceremonies.\n\n- Research emerging blockchain networks, DEX protocols and DeFi technologies.\n\nRequired Qualifications : \n\n- 3-7 years of software-development experience, including substantial hands-on blockchain or DeFi work.\n\n- Strong knowledge of Ethereum, EVM-compatible networks, transactions, blocks, wallets, keys, gas, RPCs and on-chain state.\n\n- Production experience developing, testing, deploying and optimising Solidity smart contracts.\n\n- Strong programming ability in Rust and/or Go.\n\n- Practical understanding of DEXs, AMMs, liquidity pools, concentrated liquidity, swap mechanics and multi-hop routing.\n\n- Experience integrating DeFi protocols, wallets, RPCs, APIs and liquidity sources.\n\n- Experience with Foundry, Hardhat, ethers.js, viem or equivalent tools.\n\n- Knowledge of ERC-20, ERC-4626 and related token standards.\n\n- Understanding of smart-contract security, access control, reentrancy and transaction validation.\n\n- Experience with ABI interaction, calldata encoding/decoding, transaction simulation, gas estimation and on-chain debugging.\n\n- Knowledge of event logs, indexing, mempools and the transaction lifecycle.\n\n- Strong backend engineering knowledge covering APIs, databases, caching, concurrency and scalable systems.\n\n- Experience with Git, automated testing, CI/CD and code reviews.\nSkills\nBlockchain, Solidity, Ethereum, DeFi Protocols, Rust, Smart Contract","description_format":"text","description_chars":2991,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Financial Services","DeFi","Asset Management & Funds"],"lifecycle":[{"event":"open","at":"2026-09-26T04:00:00Z"}],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.519,"p_room":0.35,"age_days":42,"expected_fill_days":17,"reasons":["seen:42","win:tail"],"computed_at":"2026-09-29T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/auro-digital-inc-blockchain-developer","json_url":"https://alion.io/job/auro-digital-inc-blockchain-developer.json","meta":{"generated_at":"2026-09-30T05:45:18Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4144,"day_limit":5000,"remaining_today":856,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}