Senior Software Engineer, Core
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Key skills for this role
About the Role
Talos is seeking a Senior Software Engineer to join the Core team, building high-performance distributed systems for institutional digital asset trading. You will design low-latency messaging infrastructure using Aeron, evolve API layers (FIX, WebSocket, REST), and maintain sequencer and market data pipelines.
Key Skills for This Role
Responsibilities
- Design, develop, and maintain high performance platform services including API gateways (FIX, WebSocket, REST) and core libraries
- Build and evolve Aeron based messaging infrastructure for reliable, low latency communication
- Tackle hard distributed systems problems: ordering, determinism, zero downtime deployments, active active architectures, crash consistent recovery
- Work cross functionally to ensure platform primitives meet throughput and latency requirements of real time trading workflows
- Provide product teams with reusable service infrastructure to build scalable, reliable, and cost efficient services
Requirements
- 7+ years of backend engineering experience with deep proficiency in Go, C++, Java, Rust or similar systems languages
- Demonstrated ownership of large scale distributed systems from design through deployment and operations
- Strong systems level fundamentals: concurrency, memory layout, I/O models, database design, network protocols
- Experience designing systems with stringent correctness guarantees (ordering, consistency, durability)
- Track record of leading technical decisions and defining architecture
- Experience with Aeron or comparable low latency messaging frameworks (preferred)
- Hands on experience with geo distributed or multi site systems (preferred)
- Familiarity with FIX protocol or other structured financial messaging formats (preferred)
Full Job Posting
About Talos
- Talos provides institutional grade trading technology for the global digital asset market.
- Founded in 2018, powering major players in the crypto ecosystem.
- Mission: advance mass adoption of digital assets by connecting institutions to the digital asset ecosystem.
Senior Software Engineer – Core
- Focus on high performance, distributed systems engineering.
- Design low latency messaging infrastructure using Aeron.
- Build and evolve API layers (FIX, WebSocket, REST) consumed by product teams.
- Maintain sequencer and market data distribution pipelines.
Responsibilities
- Design, develop, and maintain high performance platform services including API gateways (FIX, WebSocket, REST), and core libraries.
- Build and evolve Aeron based messaging infrastructure for reliable, low latency communication.
- Tackle hard distributed systems problems end to end: ordering and determinism guarantees, zero downtime deployments, active active architectures spanning cloud regions, and crash consistent recovery.
- Work cross functionally to ensure platform primitives meet throughput and latency requirements of real time trading workflows.
- Provide product teams with reusable service infrastructure to build scalable, reliable, and cost efficient services.
Qualifications
- 7+ years of backend engineering experience with deep proficiency in Go, C++, Java, Rust or similar systems languages.
- Demonstrated ownership of large scale distributed systems, from initial design through deployment, scaling, and long term operations.
- Strong systems level fundamentals: concurrency primitives, memory layout, I/O models, database design, network protocols.
- Experience designing systems with stringent correctness guarantees — ordering, consistency, durability.
- Own projects end to end: from problem definition through design, implementation, and rollout.
- Track record of leading technical decisions: navigating ambiguity, defining architecture, making meaningful trade offs.
- Comfortable operating at multiple levels of abstraction, from API contract design down to diagnosing latency spikes.
Preferred
- Experience with Aeron or comparable low latency messaging frameworks (e.g., Chronicle, LMAX Disruptor, ZeroMQ).
- Hands on experience building geo distributed or multi site systems with active active replication and regional failover.
- Familiarity with FIX protocol (4.x/5.x) or other structured financial messaging formats.
- Background in trading infrastructure, market data systems, or other latency sensitive financial platforms.
- Experience with sequencer design, write ahead logging, or custom persistence engines.
Compensation
- $250K – $275K
- Offers Equity
- Offers Bonus
Benefits
- Retirement plan contributions
- Unlimited Vacation + PTO bonus: $2000 USD for 15 days with 5 consecutive
- Bonus and stock ownership
- Medical, dental, and vision insurance
- Paid parental leave for 20 weeks after 1 year
- Global offsites and team outings
- One time home office setup stipend
- Wellness credit of $50/month
- Lunch credit of $25/day for in office days
- Donation matching up to $100/year
- Other in office perks
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