{"id":457076,"url":"https://alion.io/job/inco-senior-front-end-engineer","title":"Senior Front-End Engineer","company":{"id":175672,"name":"Inco","domain":"inco.org","url":"https://alion.io/company/inco-3","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":18000,"max_usd":45000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":11},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Account Abstraction","optional":false},{"name":"DeFi","optional":false},{"name":"Ethereum","optional":false},{"name":"Ethers.js","optional":false},{"name":"JavaScript","optional":false},{"name":"RainbowKit","optional":false},{"name":"React.js","optional":false},{"name":"Reown","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Solidity","optional":false},{"name":"TypeScript","optional":false},{"name":"Next.js","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-06-26T00:00:00Z","employer_posted_date":"2026-06-26","last_verified_at":"2026-11-02T01:13:06Z","board_verified":true,"closed_at":null,"days_open":129,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":128},"description":"Senior Frontend Engineer\nAbout Inco\nInco is building the confidentiality layer for blockchains through encryption technologies. We’re building the next generation of secure, scalable, and privacy-enhancing solutions for Web3, enabling fintech, payments, and blockchain applications to have the same confidentiality and capabilities users expect from Web2.\nWho You Are\nWe’re looking for a senior frontend engineer who has built production-grade Web3 user experiences and understands the unique complexity of blockchain applications.\nYou have strong frontend fundamentals, but you also understand that Web3 frontend engineering is not just about building interfaces. It requires safely fetching and interpreting onchain data, integrating wallets, handling signatures, managing client-side state, and designing user flows where security and correctness matter.\nYou should be comfortable building polished, reliable UIs while also thinking deeply about how users interact with wallets, sign messages, grant permissions, manage session keys, and execute intent-based flows. You understand the security risks of asking users to sign transactions or messages, and you care about making those flows clear, safe, and difficult to misuse.\nWe’re looking for someone senior who can own frontend architecture end-to-end, raise engineering standards, and mentor more junior engineers. You should be the type of person who can turn ambiguous product requirements into secure, elegant, production-ready user experiences.\nThis role is remote / hybrid / based in Bangalore (preferred).\nResponsibilities\nFrontend Architecture & Development\nDesign, build, and maintain production-grade frontend applications using modern frontend technologies.\nOwn frontend features end-to-end, from product requirements and UX flows to implementation, testing, and deployment.\nBuild responsive, performant, and reliable user interfaces for Web3 products.\nCreate reusable frontend components, patterns, and architecture that allow the team to move quickly without sacrificing quality.\nWork closely with product, design, backend, and protocol teams to translate complex Web3 flows into intuitive user experiences.\nWeb3 Product & Wallet Integration\nBuild frontend experiences that integrate with wallets, smart contracts, indexers, RPC providers, and blockchain data sources.\nImplement flows involving transaction signing, message signing, intent signing, session keys, delegated permissions, and account abstraction.\nDesign user experiences around balances, transaction history, onchain transactions, permissions, and Web3 payment flows.\nUnderstand how to fetch, cache, reconcile, and display onchain and offchain data safely and accurately.\nHandle edge cases common in Web3 applications, including pending transactions, reorgs, failed RPC calls, wallet disconnects, chain switching, stale balances, and inconsistent indexer data.\nSecurity & Correctness\nEnsure frontend flows are secure by default, especially when users are asked to sign messages, authorize intents, or store session keys locally.\nApply best practices for client-side key management, session key storage, permission scoping, signature domain separation, and phishing-resistant UX.\nWork with the team to identify and prevent risks around malicious signatures, replay attacks, unsafe approvals, incorrect transaction previews, and confusing wallet prompts.\nTreat frontend correctness as critical infrastructure, especially when user funds or private information are involved.\nLeadership & Mentorship\nLead technical design discussions and help define frontend architecture, standards, and best practices.\nReview code and mentor junior engineers on frontend quality, Web3 security, testing, and production readiness.\nImprove engineering velocity by building strong abstractions, documentation, and internal tooling.\nTake ownership of frontend quality across performance, reliability, security, accessibility, and maintainability.\nRequired Experience\n5+ years of frontend engineering experience, with strong production experience building complex applications.\nStrong expertise in TypeScript, React, and modern frontend development.\nExperience building Web3, crypto, wallet, DeFi, payments, or blockchain-related frontend products.\nStrong understanding of wallet integrations, transaction flows, message signing, and onchain data fetching.\nExperience working with libraries and tools such as viem, wagmi, ethers.js, WalletConnect, RainbowKit, or similar.\nStrong understanding of frontend state management, API integration, caching, and real-time data updates.\nAbility to reason carefully about security-sensitive frontend flows involving user funds, permissions, signatures, or keys.\nExperience owning large frontend features from design to production.\nStrong communication skills and ability to work closely with product, design, backend, and protocol engineers.\nExperience mentoring junior engineers and raising frontend engineering standards.\nStartup mindset: comfortable with ambiguity, fast iteration, and taking ownership end-to-end.\nPreferred Qualifications\nExperience building wallets, smart account interfaces, account abstraction flows, or session key systems.\nExperience with intent-based protocols, delegated permissions, EIP-712 signatures, EIP-1271, EIP-4337, or EIP-7702.\nExperience building frontend interfaces for privacy-preserving, security-sensitive, or financial applications.\nExperience with indexers, subgraphs, custom backend APIs, RPC providers, and blockchain event reconciliation.\nStrong product sense and ability to simplify complex Web3 flows for mainstream users.\nExperience with frontend testing, including unit tests, integration tests, end-to-end tests, and wallet interaction testing.\nExperience with Next.js, Tailwind, design systems, component libraries, and frontend performance optimization.\nOpen-source contributions or prior work in crypto, wallets, DeFi, payments, or developer tools.\nWhat Success Looks Like\nYou will help build the frontend experience for Inco’s core products, making advanced privacy and Web3 payment flows feel simple, secure, and intuitive.\nYou will be responsible for creating interfaces that users can trust when signing intents, managing permissions, interacting with wallets, and moving funds privately.\nYou will help establish the frontend foundation for Inco’s products while mentoring the team and setting a high bar for quality, security, and user experience.","description_format":"text","description_chars":6454,"description_truncated":false,"requirements":{"experience_years_min":5,"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","DeFi","Corporate Events"],"lifecycle":[{"event":"open","at":"2026-09-06T09:59:09Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long 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