--- title: 'Software Engineer at Xsolla' canonical: 'https://feeny.ai/job/software-engineer-xsolla-russia-dhcf5m7dn33j' type: 'job' last_seen: '2026-10-20' --- # Software Engineer at Xsolla - **Company:** Xsolla - **Location:** Russia - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-10-20 - **Last confirmed live:** 2026-10-20 - **Apply:** https://jobs.lever.co/xsolla/c4af6d72-a302-4f09-bd61-e1d384ec3297 ## Job description ## ABOUT XSOLLA Xsolla is a global video game commerce company headquartered in Los Angeles. It helps developers from indie to AAA fund, distribute, market and monetize their games, and acts as merchant of record for 1,500+ developers worldwide. For more information, visit [xsolla.com](https://xsolla.com/). ## The role We are hiring a Software Engineer, Web3 for Xsolla ZK, Xsolla's Web3 ecosystem on a zkSync-based L2. It includes: - smart wallets built on account abstraction; - SDKs that game studios and partners use to bring players on-chain; - infrastructure backend services for tokenizing in-game items and currencies; - ecosystem dApps: a DEX, an NFT marketplace and an auction. This is a senior fullstack role: you work across backend, frontend and smart contracts. ## WHAT YOU WILL OWN - Features end to end: backend, frontend and production - The on-chain / off-chain architecture of your product: what lives in contracts, what lives in services, and how the two stay consistent. You make these decisions and justify them in writing - Security and correctness of what you ship: signing flows, interactions with contracts that hold user assets, keys and secrets - Production operation of your services, as part of the team's on-call rotation ## WHAT YOU WILL DO - Build backend services in Go and TypeScript: chain indexing, transaction relaying, event processing, APIs for dApps and SDKs - Build infrastructure backend services for tokenizing in-game items and currencies - Build dApp frontends in React: wallet connection, transaction signing, on-chain state in the UI - Integrate smart wallets into products: accounts, paymasters, bundlers - Develop SDKs used by game studios and partners - Monitor services and contracts in production and take part in on-call - Review code - Set up and maintain AI tooling in the repositories (Claude Code, Codex, Cursor: rules, context, harness) so the team uses it effectively Required ## Experience - 5+ years of commercial software development, with senior-level production experience across backend and frontend - dApps that you shipped to production and maintained Web3 libraries and wallets - viem and wagmi in production: clients and transports, contract reads and writes with typed ABIs, event subscriptions, wagmi hooks and connectors, caching and invalidation of on-chain state - How wallet signers work: EOAs, browser and embedded wallets, smart accounts; personal_sign (EIP-191) and typed data (EIP-712); the EIP-1193 provider; network switching - Hands-on experience with smart wallets: UserOperations, gas sponsored via paymasters, signature validation for contract accounts (ERC-1271) Backend - Go and TypeScript (Node.js) for production services - Processing on-chain events: idempotency, reorg handling, retries - Asynchronous messaging and event-driven design (Kafka, RabbitMQ or NATS): delivery guarantees, ordering, reprocessing - Relational databases (PostgreSQL) and caching (Redis) - Designing REST and gRPC APIs: versioning, backward compatibility Frontend - React and TypeScript: rendering model, state management, performance - Web security fundamentals: XSS, CSRF, CSP, safe handling of signatures and keys in the browser Smart contracts - Reading and understanding Solidity contracts and the EVM (storage, gas, call semantics, proxy upgrade patterns, access control) well enough to integrate with them safely and review changes - Common contract vulnerability classes (reentrancy, front-running / MEV, oracle manipulation, signature replay) and how they affect the off-chain side Operations - Containers and orchestration (Docker, Kubernetes) at the level of deploying and debugging your own services - Observability (we use Datadog; experience with Prometheus, Grafana, ELK / Graylog or OpenTelemetry also counts): metrics, logs, tracing and alerting for services and contracts; diagnosing incidents in production Engineering practices - Testing: unit, integration, E2E - Git, CI/CD (GitLab CI or similar) AI-assisted engineering - Daily hands-on use of AI coding tools (Claude Code, Codex, Cursor) for development and review, including configuring them for a repository English - Spoken English at B2 level or higher ## Nice to have - zkSync / ZK Stack and the specifics of the zk-rollup stack - Designing, writing and testing smart contracts in Solidity with Foundry; deploying and upgrading them safely - Building ERC-4337 infrastructure yourself (bundlers, paymasters); EIP-6963, EIP-5792 - DeFi: DEX and AMM mechanics - NFTs and marketplaces: ERC-721, ERC-1155, auction mechanics - L2 infrastructure: running nodes, indexers, bridges - Designing SDKs for external developers - Gaming domain experience ## HOW WE WORK - Decisions in writing. Significant technical decisions are written up as an RFC or ADR that lays out the options and trade-offs. We discuss the document, not a blank whiteboard. - AI is part of everyday engineering. We use AI coding tools for development and review, and we treat configuring them for a codebase as real engineering work. ## HOW WE HIRE - Intro call. Your background, your motivation and the role. - Technical interview. Built directly on the What you will own and Required sections above. We won't ask about anything this posting doesn't promise. - Bar raiser. An engineer from outside the hiring team checks that you raise the overall engineering bar. ## THE TEAM You will work alongside product managers, designers, smart contract, backend and frontend engineers, QA and DevOps. ## 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 and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. 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 careers@xsolla.com. For more vacancies, visit [xsolla.com/careers](https://xsolla.com/careers). ## About Xsolla ## Company Overview - **One-liner**: Xsolla is a global commerce and financial technology company that provides a comprehensive suite of tools and services for video game developers and publishers, including payments, distribution, marketing, and monetization solutions. - **Entity Type**: Private (Privately Held) - **Headquarters**: Sherman Oaks (Los Angeles), California, United States - **Founded**: 2005 - **Founders**: Aleksandr Agapitov (Founder & CEO) ## Core Business - **Industries**: Video game commerce, financial technology, payment processing, distribution, and capital markets for interactive entertainment. - **Target Customers**: B2B – game developers and publishers of all sizes, from indie studios to AAA enterprises. - **Mission**: "We bring opportunities together for the video game industry" – helping creators fund, launch, distribute, and monetize games globally. ## Products & Services - **Xsolla Payment Solutions**: Global payment orchestration supporting 1000+ payment methods, 130+ currencies, and 200+ geographies. Operates as the merchant of record. - **Xsolla Web Shop**: White-label direct-to-consumer storefronts that allow developers to sell games and in-game items with higher margins. - **Xsolla Launcher & Distribution**: Cross-platform game distribution tools and launcher solutions for PC and mobile. - **Xsolla Partnership Network**: Marketing and audience acquisition services. - **Xsolla Capital Markets Group (CMG)**: Institutional capital platform providing debt, credit, and special situations financing for game studios, supported by proprietary market intelligence and an LP/investor network. - **Xsolla Storefront** (in development): White-label Android game store designed for large-file distribution, download management, and multi-tenant theming. - **Xsolla Anti-Fraud & Compliance**: Risk management and compliance tools tailored to digital gaming transactions. ## Market Standing - **Valuation**: Not publicly available. - **Annual Revenue**: ~$100 million (source: LinkedIn data). - **Total Funding**: Not disclosed (private, bootstrapped/growth equity?). - **Notable Partners & Clients**: Valve, Twitch, Epic Games, PUBG Corporation, and thousands of other game developers (1,500+ mentioned on careers page). - **Growth Signals**: - 1,079 full-time employees (as of 2025; up ~22% YoY based on earlier LinkedIn data). - 16 global offices across Los Angeles, London, Berlin, Dubai, Kuala Lumpur, Tokyo, Beijing, and more. - 3,000+ direct-to-consumer web shops launched. - 258,343,632 Pay Station visits in 2024. - 180.5 million average daily developer API calls. - 99.98% platform uptime over the past 12 months. - Active expansion of Capital Markets Group with hires in New York, Middle East, and Singapore. ## Competitive Advantages - **Exclusive video game focus** – All products and services are built specifically for the games industry, unlike generic payment processors. - **Global merchant of record** – Handles tax, compliance, and fraud in 200+ territories, reducing friction for developers. - **Relationships with major platforms** – Deep integrations with Steam, Twitch, Epic Games Store, etc. - **Scale and reliability** – Proven ability to handle hundreds of millions of transactions annually with near-perfect uptime. - **Capital and investment arm** – Unique ability to provide financing to studios, creating stickiness and aligning incentives. ## Strategic Focus - Scaling the **Capital Markets Group** as an independent institutional platform serving the interactive entertainment ecosystem (debt, special situations, principal investments). - Building a **white-label Android game store** to capture mobile distribution and compete with traditional app stores. - Deepening **AI integration** across QA, testing, and hiring processes (Director of QA role explicitly mentions AI-assisted testing; AI used in recruitment). - Expanding presence in high-growth markets: **Japan** (CMO/VP Marketing role), Middle East, and Southeast Asia. ## Why Work Here - **Culture**: "We build from the inside out" – competitive salary, flexible time off, hybrid/remote options, health insurance, retirement programs, family leave, generous in-office amenities, disability and life insurance. - **Work Model**: Hybrid and remote available across global offices. - **Engineering Culture**: High ownership, modern stack (Android/Kotlin, large-file distribution, multi-tenant theming, CI/CD, cloud infrastructure). Engineers work on greenfield projects like the white-label game store. - **Growth Opportunities**: New hires in the Capital Markets group have "executive sponsorship, meaningful ownership, and the mandate to build a durable franchise." Rapidly scaling company with expanding teams. - **Global, diverse team**: Employees from 52+ countries; offices in 12 countries. ## Sources 1. [Xsolla Careers](https://xsolla.com/careers) 2. [LinkedIn – Xsolla Company Profile](https://linkedin.com/company/xsolla) 3. [Xsolla About Us](https://xsolla.com/about-us) 4. [Xsolla Culture & Values](https://xsolla.com/our-culture-and-values) 5. 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