Back end engineer in fintech

SMARTCORE AG

United States

Remote

USD 130,000 - 190,000

Full time

6 days ago
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Benefits offered by this job

Competitive salary
Modern tech stack
Training budget
Access to top-tier LLMs

Job summary

SMARTCORE AG ищет опытного бэкенд-разработчика для разработки новых микросервисов и оптимизации производительности существующей системы. Ваша задача — принимать архитектурные решения, обеспечивая отказоустойчивость и безопасность платформы, работать с Kafka и RabbitMQ.

Требуется не менее 5 лет коммерческого опыта, знание SQL-баз данных, опыт проектирования распределённых систем и владение русским языком на уровне B2+; будет преимущество знание PCI DSS и финтех-процессов.

Qualifications

  • Не менее 5 лет коммерческого опыта бэкенд-разработки на Java, Kotlin, Python, Node.js, Golang или C#.
  • Практический опыт работы с любой SQL-базой данных (PostgreSQL, Oracle, MySQL и т. п.).
  • Опыт работы с Kafka: продюсер/консьюмер, гарантии доставки сообщений и т. д.
  • Опыт проектирования распределённых, отказоустойчивых систем и сетевых протоколов (TCP/IP, HTTP/2, gRPC).
  • Опыт работы с Docker и Kubernetes, автономность и ответственность за качество продукта, владение русским языком на уровне B2+.

Responsibilities

  • Разработка и внедрение новых микросервисов и бизнес-логики.
  • Оптимизация производительности существующих компонентов и работа над высоконагруженными участками кода.
  • Принятие архитектурных решений для повышения отказоустойчивости, масштабируемости и безопасности платформы.
  • Интеграция с платежными системами, банками и процессинговыми центрами.
  • Работа с асинхронными потоками данных через Kafka и RabbitMQ, проведение код-ревью и наставничество.
  • Участие в исследовательно-аналитических работах и внедрении новых технологий, написание тестов.

Skills

Backend development
Code reviews
Distributed systems
Mentoring
Russian language

Tools

Kafka
Docker
Kubernetes
SQL databases
gRPC

Job description

Описание

SmartCore is a fintech holding building infrastructure for the next generation of payments. Our solutions cover the entire financial operations cycle — from core banking and processing to cards, wallets, and anti-fraud systems. We are a leading fintech company developing innovative solutions in payment processing and anti-fraud technologies.

Задачи

Design and develop new microservices and business logic. Optimize the performance of existing system components and handle high-load areas of the codebase. Make key architectural decisions aimed at improving fault tolerance, scalability, and platform security. Integrate with third-party payment systems, banks, and processing centers. Work with asynchronous data streams using Kafka and RabbitMQ. Conduct code reviews, mentor less experienced colleagues, and promote best development practices. Actively participate in R&D — exploring and integrating new technologies into the project stack. Write unit and integration tests to maintain a high-quality codebase.

Требования

Has at least 5 years of commercial backend development experience using one of the following languages: Java, Kotlin, Python, Node.js, Golang, or C#. Has practical experience with any SQL database (PostgreSQL, Oracle, MySQL, etc.), including optimizing queries and understanding transaction isolation levels. Hands‑on experience building systems with Kafka — understanding broker mechanics, producer/consumer patterns, and message delivery guarantees. Experience in system‑design and architecture of distributed, fault‑tolerant systems. Understanding of networking protocols (TCP/IP, HTTP/2, gRPC). Experience with containerization and orchestration tools (Docker, Kubernetes). Writes clean, maintainable, and well‑tested code. Highly autonomous, proactive, and takes full ownership of product quality and outcomes. Fluent in Russian (B2 or higher) — required for daily communication within the team. Будет плюсом: Experience in fintech or payment processing; familiarity with PCI DSS; Comfortable with modern AI technologies, including AI agents, and capable of applying various LLMs in practice; Experience with NoSQL databases (MongoDB, Redis); Familiarity with RabbitMQ; Familiarity with monitoring and tracing tools (Prometheus, Grafana, Jaeger); Experience with load testing tools (JMeter, Gatling)

Условия

A competitive salary, discussed individually with each candidate. A modern technology stack and minimal bureaucracy. Budget for training, professional conferences, and books. Corporate access to all top-tier LLMs with maximum configurations. A team of passionate experts where your voice will always be heard.

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