Senior Back End Developer

Canada
Permanent
Full-time

1 month ago

We are working with a new, fully remote market maker on prediction markets, funded by a tier 1 operator to build next-generation trading systems, leveraging huge industry IP & resources from the tier 1 operator. The founding team includes true industry veterans with a vision for the future. They are building a lean, fully remote, senior team focused on high-performance systems, pragmatic engineering, and rapid iteration.They are looking for a Senior Back End Developer to design and build exchange gateways, trading strategies, and supporting services that power the prediction market trading platform.Responsibilities:

Build low-latency C#/.NET services for market data, order routing, and risk.
Use Python for tooling, data prep, and automation (non-hot path).
Integrate with Kafka, Redis, and Postgres for resilient, high-performance systems.
Model prediction market domains (instruments, orders, fills, risk, P&L).
Develop exchange gateways (FIX for orders, WebSocket for market data, REST for reference data) with strong fault tolerance.
Maintain high code quality via testing, reviews, and documentation.
Partner cross-functionally, ensure observability, and participate in on-call.

Requirements:

7+ years backend experience, strong in C#/.NET.
Solid Python skills.
Expertise in concurrency, streaming/event-driven, data-intensive systems.
Experience with Kafka (or similar), Redis, Postgres.
Fluency in FIX, WebSocket, and REST (deep FIX a plus).
Ownership mindset, comfort with ambiguity, and enthusiasm for AI tools.

Domain Experience (Required):

Sports betting, financial markets, or prediction markets experience—or demonstrated independent depth in these areas.

Nice to Have:

Front-end/real-time UI exposure.
Risk, market-making, or quant research experience.
Performance profiling and GC tuning for low-latency systems.

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