Flow Traders is transforming its institutional trading platform across Equities, ETFs, Fixed Income, and Crypto. As part of OTCTECH, you will work directly with traders, quants, Operations, Risk, and Compliance to design and deliver a new OTC Trading Engine, automate operational workflows, and modernise existing applications into reliable, maintainable systems.
We are looking for a Senior Software Engineer who can take ownership of complex problems from discovery through production. You will need to understand how trading activities and data flow across systems, define clear technical boundaries, make sound architectural decisions, and build solutions that perform reliably in a demanding environment.
This role combines greenfield platform development with the opportunity to understand and evolve an established technology estate. It is grounded in strong engineering fundamentals, with quality, correctness, operational resilience, and clear technical judgment at its foundation.
What you will do
Understand the Trading Domain
Work directly with traders, quants, Operations, Risk, and Compliance to understand requirements and how trading workflows operate in practice.
Trace business processes and data flows across pre-trade research, execution, post-trade processing, risk, and compliance.
Identify opportunities to improve resilience, consistency, automation, and operational efficiency.
Build a shared understanding of system responsibilities, dependencies, and operational considerations.
Design and Modernise the Platform
Help design and deliver a new OTC Trading Engine spanning Equities, ETFs, Fixed Income, and Crypto.
Define appropriate service boundaries, data models, interfaces, and event flows.
Modernise existing applications where new business or engineering requirements create opportunities for improvement.
Make and document architectural decisions, balancing performance, reliability, simplicity, and delivery speed.
Design greenfield services and platforms that can be operated and evolved safely over time.
Build Reliable Trading Systems
Develop high-performance services, data pipelines, and integrations across Java, C++, and Python environments.
Build event-driven systems using messaging and pub/sub patterns.
Engineer for production from the outset, including testing, observability, failure handling, and operational support.
Embed monitoring, root-cause analysis, and recovery mechanisms so issues are identified and resolved quickly.
Take ownership of delivery from design and implementation through deployment and production operation.
What you need to succeed
Strong experience building and operating distributed backend systems in production
Expert in Java or C++, with working knowledge of Python
Strong understanding of distributed systems, concurrency, and scalable system design
Experience with event-driven architectures and messaging platforms such as Kafka
Proven track record building high-performance, low-latency systems
Ability to translate complex business requirements into robust technical solutions
Ownership mindset with strong stakeholder management and communication skills
Experience with modern engineering practices including testing, code reviews, observability, and automation
Comfortable leveraging AI tools to improve productivity while maintaining quality and accountability.
Nice to have
Experience in trading, capital markets, or financial services
Exposure to Google Cloud Platform (GCP)
Experience with Kubernetes, Docker, and cloud-native technologies
Knowledge of BigQuery or large-scale data platforms
Experience working in low-latency, high-throughput environments
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
Senior Software Engineer - OTCTECH Flow Traders · Amsterdam, Netherlands 9 hours ago werkgever: Tradermath
Da Vinci is een uitstekende werkgever die een dynamische werkomgeving biedt in het hart van Amsterdam. Werknemers krijgen de vrijheid om innovatieve ideeën te ontwikkelen en deze tot uitvoering te brengen, terwijl ze samenwerken met een hoogwaardig compliance team in een snelgroeiende proprietary trading firma. Met aantrekkelijke voordelen zoals een competitief salaris, een relocatiepakket voor internationale kandidaten, en sociale evenementen, biedt Da Vinci unieke kansen voor persoonlijke en professionele groei in de financiële sector.
