{"id":1748899,"url":"https://alion.io/job/xsolla-team-lead","title":"Team Lead","company":{"id":2375,"name":"Xsolla","domain":"xsolla.com","url":"https://alion.io/company/xsolla","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":74,"open_postings":170,"ghost_share":0.353,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":70,"computed_at":"2026-10-06T05:45:30Z"}},"role":"Web3","role_family":"Web3","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["RU"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":85000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":9},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Account Abstraction","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Ethereum","optional":false},{"name":"GitLab CI","optional":false},{"name":"Go","optional":false},{"name":"Graylog","optional":false},{"name":"gRPC","optional":false},{"name":"Kubernetes","optional":false},{"name":"NATS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Solidity","optional":false},{"name":"Token Standards","optional":false},{"name":"WebSockets","optional":false},{"name":"ZkSync Era","optional":false},{"name":"Agile","optional":true},{"name":"Alchemy","optional":true},{"name":"Biconomy","optional":true},{"name":"NFT","optional":true},{"name":"Pimlico","optional":true},{"name":"Privy","optional":true},{"name":"Swagger","optional":true},{"name":"Thirdweb SDK","optional":true},{"name":"Threat Modeling","optional":true},{"name":"ZeroDev","optional":true}],"status":"live","first_seen_at":"2026-09-29T13:14:47Z","employer_posted_date":"2026-09-29","last_verified_at":"2026-10-06T22:17:49Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":6},"description":"ABOUT US\nXsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.\nFor more information, visit xsolla.com.\nABOUT YOU\nWe are looking for a Team Lead who is passionate about building and leading teams that create cutting-edge blockchain infrastructure to join our Xsolla ZK team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead a team of backend engineers developing Web3 products while maintaining hands-on technical contribution.\nStrong backend development expertise in Go combined with leadership skills are essential, along with experience in building high-load distributed systems and managing engineering teams. The ability to balance technical excellence with people development and delivery predictability will be key to your success in this role.\nIf you're passionate about growing engineering talent while shipping world-class blockchain products and love shaping the technical direction of next-generation gaming infrastructure, we would love to hear from you!\nAbout the project\nXsolla ZK is building a cross-game infrastructure that empowers gamers to freely trade and use their digital assets without barriers. As a Team Lead, you'll lead a team working on:\nXsolla Bazaar - NFT marketplace backend for trading digital assets across multiple blockchains\n\nWeb3 Backpack - Smart wallet backend with ZK SSO 4337 account abstraction\n\nBlockchain Services - Event scanners, transaction processors, indexers\n\nWeb3 APIs - Developer-facing APIs and SDKs for game integration\n\nTech Stack:\nLanguage: Go (go-ethereum, ethkit; idiomatic concurrency, performance profiling)\n\nDatabases: MongoDB, PostgreSQL, Redis\n\nMessage Queue: NATS, RabbitMQ, Kafka\n\nAPI: REST, WebSocket, gRPC, OpenAPI (Swagger)\n\nAccount Abstraction (ERC-4337): EntryPoint (v0.6-v0.8), UserOperation lifecycle, bundler/paymaster roles, validation rules (ERC-7562), signature validation for undeployed accounts (ERC-6492)\n\nSmart Account Standards: Modular account standards (ERC-7579 / ERC-6900), session keys and delegated permissions (ERC-7710 / ERC-7715), EIP-7702 EOA delegation awareness\n\nSignature & Wallet-Facing Standards: EIP-712 typed data, ERC-1271 contract signatures, WebAuthn/passkey (P-256), EIP-1193, EIP-6963, EIP-5792, ERC-7677 paymaster interfaces\n\nZK Stack / ZKsync Era: EraVM, system contracts (ContractDeployer, NonceHolder), bootloader, zksolc/zkvyper compilers, native Account Abstraction, L1↔L2 messaging and finality\n\nEthereum L1: go-ethereum, abigen, RPC and indexer semantics\n\nSmart Contracts: Solidity, ERC-20/721/1155, upgradeability and migration patterns\n\nCustody: Key management fundamentals (HSM, MPC/threshold signing) relevant to backend wallet operations\n\nInfrastructure: Docker, Kubernetes, GitLab CI/CD, Graylog, Prometheus\n\nTeam Scope:\nTeam of up to 8 backend engineers\n\nOwnership of one or more service domains within the Web3 ecosystem\n\nDirect collaboration with Product, Frontend, Blockchain/Solidity, and DevOps teams\n\nResponsibilities\nTechnical Leadership (60%):\nArchitect Web3 backend systems leveraging ZK Stack infrastructure and ERC-4337 Account Abstraction primitives\n\nDefine technical strategy for the UserOperation lifecycle: bundler/paymaster integration, gas-sponsorship strategy (what gets sponsored, how it's metered, capped, and defended from abuse)\n\nLead ZK Stack / ZKsync Era integration decisions: EraVM-specific optimizations, native Account Abstraction, L1↔L2 bridging architecture, system contract interactions\n\nDesign session-key and permission primitives (ERC-7710 / ERC-7715): scoped, time-limited, contract-allowlisted authority for prompt-free gameplay transactions\n\nOwn the signing and confirmation flow: EIP-712 typed data, ERC-1271 verification, WebAuthn/passkey signers, and wallet-facing standards (EIP-1193, EIP-6963, EIP-5792)\n\nOversee smart contract interaction layer: abigen code generation, factory dependencies handling, upgradeability and migration patterns\n\nReview complex code focusing on blockchain-specific edge cases: reorg handling, transaction finality, gas estimation failure modes on L2\n\nIdentify systemic risks (key management, signature phishing, bundler/RPC dependencies) and lead initiatives to resolve them before they become incidents\n\nDrive improvements in blockchain observability: transaction tracking, event monitoring, on-chain analytics\n\nMaintain hands-on contribution to critical features involving multi-chain operations\n\nPeople Management (40%):\nLead and mentor a team of up to 8 backend engineers\n\nConduct regular 1:1s, performance reviews, and career development conversations\n\nHire and onboard new team members\n\nFoster a culture of technical excellence, collaboration, and continuous learning\n\nManage team workload and ensure sustainable delivery pace\n\nDelivery & Process:\nOwn team's delivery predictability and sprint commitments\n\nCollaborate with Product to refine requirements and estimate work\n\nReport on team progress, risks, and blockers to stakeholders\n\nContinuously improve development processes and team efficiency\n\nNice to Have\nRequired:\nTechnical Skills:\n5+ years of commercial experience with Go (or 7+ years with other backend languages with Go proficiency)\n\nStrong expertise in distributed systems and microservices architecture\n\nDeep knowledge of MongoDB, PostgreSQL, and Redis\n\nExperience with message queues (NATS, RabbitMQ, Kafka)\n\nSolid understanding of API design (REST, WebSocket, gRPC)\n\nExperience with Docker, Kubernetes, and CI/CD pipelines\n\nBlockchain development experience:\n\nEthereum/EVM smart contract interaction (go-ethereum, abigen)\n\nUnderstanding of transaction lifecycle, gas models, nonce management\n\nExperience with token standards (ERC-20, ERC-721, ERC-1155)\n\nWorking knowledge of ERC-4337 Account Abstraction: EntryPoint, UserOperation lifecycle, bundler/paymaster roles, gas estimation failure modes\n\nLeadership Skills:\n2+ years of experience leading engineering teams\n\nTrack record of mentoring and developing engineers\n\nExperience with agile methodologies and sprint planning\n\nStrong communication skills for technical and non-technical stakeholders\n\nAbility to balance hands-on coding with management responsibilities\n\nPreferred:\nExperience with ZK Stack / ZKsync Era:\n\nEraVM execution model and differences from EVM, native Account Abstraction on zkSync-family chains\n\nSystem contracts (ContractDeployer, NonceHolder, etc.)\n\nL1↔L2 communication, bridging, and finality/reorg behavior\n\nDeeper Account Abstraction & smart wallet exposure:\n\nModular account standards (ERC-7579 / ERC-6900) and experience building on/extending implementations (Safe, Kernel, Biconomy, Coinbase Smart Wallet, or equivalent)\n\nSession keys and delegated permissions (ERC-7710 / ERC-7715)\n\nSignature schemes: EIP-712, ERC-1271, WebAuthn/passkey, and wallet-facing standards (EIP-1193, EIP-6963, EIP-5792, ERC-7677)\n\nFamiliarity with AA infrastructure providers (Sequence, thirdweb, Privy, Dynamic, Turnkey, Pimlico, Alchemy, ZeroDev, Safe{Core}) and views on build-versus-buy trade-offs\n\nExposure to key management: HSM, MPC/threshold signing, social recovery or guardian-based recovery\n\nKnowledge of smart contract development (Solidity basics, security patterns) and wallet threat modeling (signature phishing, replay, paymaster griefing)\n\nExperience with blockchain event processing: event scanning, reorg handling, webhooks\n\nBackground in gaming or fintech industries with high-load systems\n\nExperience with remote team management","description_format":"text","description_chars":8206,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous 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