Senior Software Engineer - Post-Trade Platform

FlowTraders; Amsterdam; On-site; EUR 110,000 - 140,000; Full time

Benefits offered by this job

Daily catered lunch

In-house gym

Bi-weekly massages

Company boat

In-house Bar and Lounge with arcade

Job summary

Flow Traders is expanding its post-trade platform and seeks a Senior Software Engineer to take end-to-end ownership of key post-trade domains. You will shape platform architecture while building reliable, automated, and data-driven services across equities, ETFs, fixed income, and crypto.

This role suits engineers who enjoy solving complex problems, thinking in systems, and delivering high-quality platforms with tangible business impact.

Qualifications

• 5+ years of experience building distributed backend systems.
• Strong understanding of distributed systems, data structures, 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.

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.

Skills

Distributed systems

Event-driven architecture

SQL & data modeling

Stakeholder management

Java/C++

Python exposure

Tools

Kafka

Kubernetes

GCP

CI/CD

Airflow

Spark

Flink

Job 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.

What you will do

• 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

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

What we offer

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