Back to the top: Andrey Litvinov

← Back to the siteDownload PDF

Hand-inked drawing of Andrey: dark shoulder-length hair, short beard, white shirt, arms crossed.

Andrey Litvinov

Senior Backend DeveloperSoftware ArchitectTeam Lead

FinTech · Payments · Trading · Digital AssetsOpen to: Senior Backend · Architect · Tech Lead · CTO-track

I design and build backend systems from architecture to production — and lead the teams that ship them.

Hands-on: I write production code, review code, decompose tasks, mentor developers and keep delivery under control.

In short

  • Architecture to production. Microservices, APIs, payment and exchange workflows: designed, built and supported in production.
  • Integrations that misbehave. Payment, AML/KYC, trading and market-data providers: rate limits, unstable APIs, different data formats.
  • Legacy to modern. Analysed legacy services with limited or missing documentation and took part in migrating them to .NET Core and Go.
  • Teams. Led Agile teams of 5+ people: backend, frontend/mobile, QA and DevOps.

Selected work

Payment & Wallet Infrastructure PlatformSoftware Architect / Team Lead

A wallet and payment platform with exchange through external providers, liquidity sources and cross-chain infrastructure.

  • Owned the backend architecture for the direction and led the technical team.
  • Designed it on .NET Core microservices; built APIs, workflow services, exchange orchestration and provider integration layers.
  • Designed the operation lifecycle: creation, statuses, failures, retries, confirmations and external events.
  • Integrated external exchange providers, liquidity sources and blockchain infrastructure.
  • Led developers, DevOps and QA in an Agile workflow: code review, task decomposition, sprint and delivery planning, production readiness.

Built with.NET CoreDapr workflowsRedisRabbitMQPostgreSQL

Forex & CFD Broker PlatformSoftware Architect / Team Lead / Senior Backend Developer

Backend infrastructure for a Forex & CFD broker: legacy migration, payment gateway, AML checks and collector services.

  • Analysed legacy services with limited or missing documentation and took part in migrating them to .NET Core and Go.
  • Designed and implemented a payment gateway with multiple deposit and withdrawal methods.
  • Built AML services for address, transaction and payment risk checks.
  • Built collector services that detect, process and collect incoming digital assets.
  • Wrote a significant amount of production code before the team expanded; later acted as architect and team lead: code review, technical decisions, task planning, quality control.

Built with.NET CoreGoClean ArchitecturePostgreSQLRedisAirflowEF Core

Andrey Litvinovanlitv.cloud1 / 2

Digital Asset Exchange / Trading PlatformSenior Backend Developer

Backend services for a digital asset exchange: APIs, AML integrations, market-data processing and trading infrastructure for multiple external providers.

  • Built a market-depth service that synchronises order books from multiple CEX providers.
  • Developed trading services for order execution, status handling and provider-specific logic.
  • Developed backend APIs for exchange flows, user operations and internal services; integrated AML providers for address, transaction and risk-score checks.
  • Worked with rate limits, unstable provider APIs and different market-data formats; improved reliability through logging, retry logic, error handling, service decomposition and production support.

Built withNode.jsTypeScriptGoPostgreSQLRedisTrading and AML APIs

Trading Automation & DeFi InfrastructureSenior Developer

Worked on arbitrage and trading bots for liquidity pools and decentralised exchanges: smart-contract integration, on-chain execution logic, gas optimisation, token-launch mechanics.

Built withNode.jsTypeScriptRustSolidityWeb3

How I leadAgile teams of 5+Backend · Frontend / Mobile · QA · DevOps

My leadership style is hands-on: I stay close to architecture and code, help with difficult implementation details, investigate production issues, and still keep team delivery under control.

  • Task decomposition and technical planning
  • Sprint planning, backlog refinement, delivery tracking
  • Code review and engineering quality control
  • Mentoring developers
  • Architecture decisions and technical ownership
  • Coordination with product and business stakeholders
  • Release planning and production readiness
  • Investigation of production incidents and legacy systems

AI-assisted engineering

AI-assisted development with Cursor, OpenCode and similar tools. LLMs for code analysis, refactoring, documentation and research. Agent-based workflows for task decomposition, implementation planning and engineering automation. Local LLMs and API-based providers.

Toolbox

Backend
.NET Core, C#, Node.js, TypeScript, Go
Architecture
Microservices, Clean Architecture, CQRS, DDD, event-driven, REST, gRPC, Dapr, MediatR
Data
PostgreSQL, Redis, ClickHouse, MongoDB, RavenDB, SQL Server · RabbitMQ, Dapr pub/sub
Infrastructure
Docker, Grafana, Prometheus, Loki, OpenTelemetry, Vault, Airflow
FinTech
Payment, AML/KYC, trading and market-data APIs · CEX/DEX · Web3, Solidity, EVM, Uniswap V2/V3, Thorchain
Also
EF Core, Dapper, Prisma · React, Next.js, Vue.js, Flutter · xUnit, Jest

Career

2008 — now
Contract work · Senior Backend Developer / Software Architect / Team Lead — the projects above.
2017 — 2019
SL Enterprise Solutions · Account Director — sales of IT project solutions for major accounts.
2008 — 2017
Microsoft · Technical Account Manager — enterprise support delivery; in charge of growing the developer support practice.
2001 — 2008
Intergam Technologies · Project Manager — managed the Moscow development group; .NET and SQL Server.
2000 — 2001
ASSAKOM · Support engineer — internet provider: server infrastructure and customer support.
Education
Tsiolkovsky Russian State Technological University, Moscow — Bachelor & Master, 2001
Languages
Russian — native · English — professional working proficiency

Andrey Litvinovanlitv.cloud2 / 2