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Senior Software Engineer (Go, Java) (IR-519)

2 weeks ago
Ukraine
Full-time
Senior
Software Engineer
Software Development
Go Java Kafka Microservices NATS PostgreSQL RabbitMQ Redis REST API Spring WebSockets
Apply Now
Intellectsoft

Intellectsoft

Intellectsoft is a leading software development company offering a wide range of services including mobile strategy, app development, web development, and enterprise solutions.

Internet Software & Services
251-1K
Founded 2007
View All Jobs 10

Description

  • Build and maintain exchange and liquidity provider adapters using REST, WebSocket, and FIX APIs.
  • Normalize external venue APIs into canonical internal models.
  • Develop low-latency, fault-tolerant services for RFQ, execution, and market data flows.
  • Handle venue-specific edge cases such as partial fills, sequencing issues, and inconsistent APIs.
  • Integrate services with an event-driven stack using NATS JetStream, Redis, and Postgres.
  • Work across modern Go services and legacy Java/Spring systems.
  • Contribute to migration efforts from RabbitMQ to NATS and from monoliths to microservices.
  • Improve resiliency, observability, and operational reliability across the platform.
  • Collaborate with trading, product, and infrastructure teams.

Requirements

  • Strong experience in Go and/or Java; both languages will be used.
  • Experience building API integrations with REST and WebSocket; FIX experience is a big plus.
  • Deep understanding of concurrency and performance.
  • Familiarity with event-driven systems such as Kafka, NATS, and RabbitMQ.
  • Strong debugging skills in distributed systems.
  • Trading domain experience is highly preferred, including exchanges, liquidity providers, market makers, RFQ, or order execution flows.
  • Understanding of order lifecycles, latency, sequencing challenges, and market data feeds.
  • Comfort working with unreliable external systems, messy APIs, and real-world edge cases.
  • Experience working with the FIX protocol is nice to have.
  • Background in crypto trading infrastructure or exchange integrations is nice to have.
  • Familiarity with Redis, Postgres, and NATS is nice to have.
  • Experience modernizing or migrating legacy systems to newer architectures is nice to have.
  • Exposure to low-latency and high-throughput distributed systems is nice to have.

Benefits

  • Impactful projects with meaningful work.
  • Udemy courses of your choice.
  • Team-building events, marathons, and charity activities.
  • Workshops, trainings, and expert knowledge-sharing.
  • Clear career path.
  • Absence days for work-life balance.
  • Flexible hours and work setup, including the ability to work from anywhere.

Interested in this position?

Apply directly on the company website

Apply Now

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