backend developer in high-load financial systems

HireHi; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

Quarterly bonuses

Unlimited PTO

Private medical insurance

Life events support

Development budget

International exposure

Company events

Job summary

HireHi ищет опытного backend‑разработчика в США для работы над высоконагруженной платформой по обработке финансовых транзакций. Вы будете владеть ядром продукта в кросс‑функциональной команде, проектировать и внедрять backend‑функции для распределённой инфраструктуры и обеспечивать надёжность сервиса.

Требуется глубокий опыт Node.js/TypeScript и работы с Kafka, Kafka consumer‑groups, CI/CD и облаками AWS/GCP.

Qualifications

• Опыт разработки backend сервисов в высоконагружённых распределённых системах.
• Понимание проектирования idempotent/retry-safe обработчиков.
• Опыт работы с контейнеризацией и облаками.

Responsibilities

• Владеть ядром продукта в кросс-функциональной команде.
• Разрабатывать backend‑функции end-to-end в распределённой среде.
• Писать продакшн‑код для высоконагруженной системы.
• Обеспечивать надёжность и точность финансовых транзакций.
• Участвовать в обзорах архитектуры и кода.
• Вступать в дежурства и улучшать инцидент‑ответы.

Skills

Node.js/TypeScript

Kafka

gRPC

Kubernetes

AWS/GCP

Relational/NoSQL DBs

Асинхронное программирование

Tools

DynamoDB

MongoDB

Redis

MySQL

PostgreSQL

Job description

Описание

The company’s platform supports high-load backend services and financial transactions, with a focus on performance, reliability, and availability.

Задачи

• Own a core product within a cross-functional team
• Design, build, and deliver backend features end-to-end in a distributed environment
• Write production-level code for a high-load, scalable system
• Own services handling financial transactions at scale, ensuring reliability and accuracy
• Suggest and implement improvements to architecture, processes, and development practices
• Participate in code and architecture reviews
• Solve complex business and technical challenges with pragmatic, efficient solutions
• Participate in on-call rotations to ensure system reliability and availability
• Contribute to technology transformation initiatives across the platform
• Collaborate with engineers, product, and stakeholders to deliver solutions used globally

Требования

• Strong experience with Node.js/TypeScript or expertise in another OOP language, such as Java, Python, C++, C#, or Go
• Strong understanding of asynchronous programming
• Deep production experience with Kafka, including consumer-group rebalances, in-flight processing, offset commits under retries and duplicate delivery, and the limits of exactly-once semantics
• Experience designing idempotent, retry-safe handlers for at-least-once pipelines, including transactional outbox, idempotency keys, and deduplication
• Experience building services with gRPC or similar RPC frameworks
• Strong knowledge of relational databases such as MySQL or PostgreSQL, plus production experience with at least one NoSQL technology at scale, such as DynamoDB, MongoDB, or Redis
• Hands-on experience running services on Kubernetes and AWS/GCP, including deployment, autoscaling, resource limits, and production debugging
• Production operations experience with on-call ownership of a high-load system, including incident response, impact assessment, root-cause analysis, and post-incident improvements
• Будет плюсом: ClickHouse or other columnar/analytical databases, multi-region/failover architectures, practical use of AI coding agents such as Cursor or Claude Code, application security best practices, gambling domain experience

Условия

• Competitive salary
• Quarterly bonuses
• Unlimited paid time off and paid sick leave
• Private medical insurance
• Financial support for life events
• Professional development budget
• International exposure and regular company events
• Benefits may vary depending on location and contractual agreement