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ABOUT US
Xsolla 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.
For more information, visit .
ABOUT YOU
We 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 .
Strong 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.
If 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!
About the project
Xsolla 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:
Xsolla Bazaar — NFT marketplace backend for trading digital assets across multiple blockchains Web3 Backpack — Smart wallet backend with ZK SSO 4337 account abstraction Blockchain Services — Event scanners, transaction processors, indexers Web3 APIs — Developer-facing APIs and SDKs for game integration
Tech Stack:
Language: Go (go-ethereum, ethkit; idiomatic concurrency, performance profiling)
Ownership of one or more service domains within the Web3 ecosystem
Direct collaboration with Product, Frontend, Blockchain/Solidity, and DevOps teams
Responsibilities
Technical Leadership (60%):
Architect Web3 backend systems leveraging ZK Stack infrastructure and ERC-4337 Account Abstraction primitives
Define technical strategy for the UserOperation lifecycle : bundler/paymaster integration, gas-sponsorship strategy (what gets sponsored, how it's metered, capped, and defended from abuse)
Lead ZK Stack / ZKsync Era integration decisions: EraVM-specific optimizations, native Account Abstraction, L1↔L2 bridging architecture, system contract interactions Design session-key and permission primitives (ERC-7710 / ERC-7715): scoped, time-limited, contract-allowlisted authority for prompt-free gameplay transactions Own 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) Oversee smart contract interaction layer : abigen code generation, factory dependencies handling, upgradeability and migration patterns Review complex code focusing on blockchain-specific edge cases : reorg handling, transaction finality, gas estimation failure modes on L2 Identify systemic risks (key management, signature phishing, bundler/RPC dependencies) and lead initiatives to resolve them before they become incidents Drive improvements in blockchain observability : transaction tracking, event monitoring, on-chain analytics Maintain hands-on contribution to critical features involving multi-chain operations
People Management (40%):
Lead and mentor a team of up to 8 backend engineers
Conduct regular 1:1s, performance reviews, and career development conversations
Hire and onboard new team members
Foster a culture of technical excellence, collaboration, and continuous learning
Manage team workload and ensure sustainable delivery pace
Delivery & Process:
Own team's delivery predictability and sprint commitments
Collaborate with Product to refine requirements and estimate work
Report on team progress, risks, and blockers to stakeholders
Continuously improve development processes and team efficiency
Nice to Have
Required:
Technical Skills:
5+ years of commercial experience with Go (or 7+ years with other backend languages with Go proficiency)
Strong expertise in distributed systems and microservices architecture
Deep knowledge of MongoDB , PostgreSQL , and Redis
Experience with message queues (NATS, RabbitMQ, Kafka)
Solid understanding of API design (REST, WebSocket, gRPC)
Experience with Docker , Kubernetes , and CI/CD pipelines
Modular account standards (ERC-7579 / ERC-6900) and experience building on/extending implementations (Safe, Kernel, Biconomy, Coinbase Smart Wallet, or equivalent) Session keys and delegated permissions (ERC-7710 / ERC-7715) Signature schemes: EIP-712, ERC-1271, WebAuthn/passkey, and wallet-facing standards (EIP-1193, EIP-6963, EIP-5792, ERC-7677) Familiarity with AA infrastructure providers (Sequence, thirdweb, Privy, Dynamic, Turnkey, Pimlico, Alchemy, ZeroDev, Safe{Core}) and views on build-versus-buy trade-offs Exposure to key management : HSM, MPC/threshold signing, social recovery or guardian-based recovery Knowledge of smart contract development (Solidity basics, security patterns) and wallet threat modeling (signature phishing, replay, paymaster griefing) Experience with blockchain event processing : event scanning, reorg handling, webhooks Background in gaming or fintech industries with high-load systems Experience with remote team management
WHAT SUCCESS LOOKS LIKE
First 3 months:
Onboard and understand the codebase, architecture, and team dynamics
Establish regular 1:1s and team rituals
Deliver at least one significant feature or improvement
First 6 months:
Improve team's delivery predictability and code quality metrics
Identify and address technical debt in key areas
Develop career growth plans for all team members
First year:
Team consistently delivers on commitments with high quality
Measurable improvement in system performance and reliability
Team members show clear growth and development
BENEFITS
We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees through a comprehensive Benefits Program. This includes:
Unlimited Flexible Time Off for work-life balance
Private health insurance with dental coverage for you and your family
Personalized career roadmap with clear growth paths
Professional development through training, conferences, and educational opportunities
Annual corporate events and team gatherings
Remote-first culture with flexible working hours (10:00–19:00)
Together, we're not just building a business; we're cultivating a community that values creativity, collaboration, and the transformative power of play.
EMPLOYMENT DETAILS
Location: Remote (worldwide)
Employment Type: Full-time
Schedule: 10:00–19:00 (flexible)
Contract: Employment agreement (entity or EOR arranged per candidate location)
EQUAL EMPLOYMENT STATEMENT
Xsolla is dedicated to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, language, sexual orientation, national origin, genetics, political beliefs, disability, age, marital status, social background or other characteristics.
We are committed to compliance with all fair employment practices regarding citizenship and immigration status.
CONTACT
If you have questions regarding our hiring practices, please contact .