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Posted October 28, 2026

Senior Software Engineer - Post-Trade Platform

Flow Traders

Category:Software Engineering

Location:Amsterdam

Seniority
Senior
Employment type
Full-time
Bonus
Yes

Requirements

  • 5+ years of experience building distributed backend systems using Java or C++, with exposure to Python
  • Strong understanding of distributed systems, data structures, algorithms, and event-driven architectures
  • Experience with messaging technologies such as Kafka
  • Hands-on experience building data-intensive systems, ETL pipelines, and analytical data solutions
  • Strong SQL and data modelling skills
  • Proven ability to own complex technical domains from design through production support
  • Strong stakeholder management and communication skills

Nice to have

  • Experience with post-trade workflows, including reconciliation, settlement, booking, or regulatory reporting
  • Background in financial services, proprietary trading, or market making
  • Experience with GCP, Kubernetes, CI/CD, Airflow, Spark, Flink, or similar technologies
  • Knowledge of observability tools such as Prometheus, Grafana, or OpenTelemetry

About the role

Flow Traders is building the next generation of its post-trade platform, covering trade capture, reconciliation, settlement, booking, reporting, and operational workflows across Equities, ETFs, Fixed Income, and Crypto. We are looking for a Senior Software Engineer to take end-to-end ownership of key post-trade domains, helping shape the platform architecture while building reliable, automated, and data-driven services.

This role is ideal for an engineer who enjoys solving complex problems, thinking in systems, and building high-quality platforms that deliver real business impact.

This role may require participation in an on-call rotation outside normal business hours and on applicable National Holidays. Employees on call must remain available to respond to urgent matters necessary to ensure business continuity or 24/7 coverage of trading activities. On-call duties, scheduling, and compensation are governed by the applicable company policy, arrangements, and Dutch labour-law requirements.

Responsibilities

  • Own and develop critical post-trade domains such as reconciliation, settlement, booking, and reporting
  • Work closely with Trading, Operations, Risk, Compliance, and Data teams to understand workflows and requirements
  • Design and build scalable backend services and data pipelines
  • Improve automation, data quality, resilience, and operational efficiency
  • Contribute to the target architecture and technical roadmap of the post-trade platform
  • Ensure observability, reliability, and data correctness across systems

What you'll get

  • Flow Academy and opportunities to attend domain-related conferences
  • Daily catered lunch, great coffee, and a fully stocked kitchen and snack bar
  • In-house Bar and Lounge with arcade, table tennis, billiards, and game consoles
  • Company boat
  • In-house gym and sessions with our nutritionist or personal trainer
  • Bi-weekly massages
  • Annual company trip and a variety of events throughout the year, such as the New Years Event
  • Global rotations across our offices worldwide
  • and more

Skills

Java · C++ · Python · Kafka · SQL · data modelling · ETL pipelines