Software Engineer

Xsolla

. Build and own features end to end across backend, frontend, and production .

Posted 10/20/2026full-timeRemoteMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in building and maintaining dApps, with a strong focus on backend services using Go and TypeScript, as well as frontend development with React. Proficient in smart contract interactions, security practices, and production-level observability.

Highest-signal resume keywords

5+ Years Commercial Software DevelopmentProduction Experience With Go And TypeScriptDApps Shipped To ProductionExperience With Smart Wallets And UserOperationsKnowledge Of Web Security Fundamentals

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

GoTypeScriptReactSolidityPostgreSQLRedisKafkaRabbitMQDockerKubernetes

Soft Skills

CollaborationDocumentationProblem-Solving

Tools & Technologies

AI Coding ToolsGitCI/CDObservability Tools

Industry Keywords

DAppsSmart ContractsOn-Chain/Off-Chain ArchitectureEvent-Driven DesignProduction Incident Diagnosis

Tech Stack

Tools & technologies

DockerGRPCJavaScriptKafkaKubernetesNode.jsOraclePostgresRabbitMQReactRedisSoliditySwitchingTypeScriptGo

About the role

Key responsibilities & impact

Build and own features end to end across backend, frontend, and production
Make and document on-chain/off-chain architecture decisions
Ensure security and correctness of signing flows, contract interactions, keys, and secrets
Build backend services in Go and TypeScript for chain indexing, transaction relaying, event processing, and APIs
Build infrastructure backend services for tokenizing in-game items and currencies
Build React dApp frontends for wallet connection, transaction signing, and on-chain state
Integrate smart wallets, accounts, paymasters, and bundlers into products
Develop SDKs used by game studios and partners
Monitor production services and contracts and participate in on-call rotation
Review code
Configure and maintain AI tooling in repositories
Collaborate with product managers, designers, smart contract, backend, frontend, QA, and DevOps engineers

Requirements

What you’ll need

5+ years of commercial software development
Senior-level production experience across backend and frontend
dApps shipped to production and maintained
Production experience with viem and wagmi
Knowledge of wallet signers, EOAs, browser and embedded wallets, smart accounts, personal_sign, EIP-191, EIP-712, EIP-1193, and network switching
Hands-on experience with smart wallets, UserOperations, paymasters, and ERC-1271
Production services experience with Go and TypeScript/Node.js
Experience processing on-chain events, including idempotency, reorg handling, and retries
Experience with asynchronous messaging and event-driven design using Kafka, RabbitMQ, or NATS
Experience with PostgreSQL and Redis
Experience designing REST and gRPC APIs
Experience with React and TypeScript
Knowledge of web security fundamentals including XSS, CSRF, CSP, and safe handling of signatures and keys in the browser
Ability to read and understand Solidity contracts and the EVM
Knowledge of smart contract vulnerability classes including reentrancy, front-running/MEV, oracle manipulation, and signature replay
Experience with Docker and Kubernetes
Experience with observability, including metrics, logs, tracing, alerting, and production incident diagnosis
Testing experience with unit, integration, and E2E tests
Git and CI/CD experience
Daily hands-on use of AI coding tools such as Claude Code, Codex, or Cursor, including repository configuration
Spoken English at B2 level or higher

Benefits

Comp & perks

Medical, dental, and vision coverage
PTO
Personalized career roadmap for each employee
Professional development through training and educational opportunities
Flexible schedule
Remote work worldwide