Job Title: Senior Back End Developer

Company Name: BettingJobs

Job Url: https://www.linkedin.com/jobs/view/4380284543/?eBP=NOT_ELIGIBLE_FOR_CHARGING&trk=flagship3_search_srp_jobs&refId=4trKcMfemVjjNNND8gKbgw%3D%3D&trackingId=nO127ap8N%2Fh98iXYshmKgQ%3D%3D

Job Description: 
BettingJobs


Senior Back End Developer

United States · 10 hours ago · Over 100 applicants

Promoted by hirer · Company review time is typically 1 week

Remote
Full-time
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Meet the hiring team


Jennifer Innes 

• 3rd

Experienced Online Gaming Industry Recruiter and Leader

Job poster

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About the job
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.

Requirements added by the job poster

• 1+ years of work experience with C#