Senior Software Engineer - Post-Trade Platform

Description

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.

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 need to succeed
• 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

Requirements

• 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

Benefits

• At Flow Traders, we create the conditions for hard‑working, high‑performing people to do their best work. From a thorough onboarding and ongoing access to Flow Academy, to latest technology and a collaborative, non‑hierarchical culture, we give you the tools, ownership, and support to move fast and drive outcomes. We keep a close‑knit, small‑company feel while offering competitive salary, annual discretionary profit share, and comprehensive benefits, so talent can grow here, and stay here. See our benefits below:
• 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
• 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.