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About the Role

Join our Exchange team and start building the internet of money. The Exchange team is responsible for everything to do with the trading backend services such as the matching engine, market data gateways, internal and external APIs, margin systems and various other trading services. This role sits within the Trading Technologies sub-team, which owns the messaging and transport layer at the core of our trading infrastructure — built on Aeron for ultra-low-latency, reliable UDP messaging. You'll work directly on the systems that move market data, orders, and trade events across our exchange at microsecond scale.

Responsibilities

Develop and maintain core framework and key software components for the Kraken trading engine, with a focus on the Aeron-based messaging transport layer
Design and implement low-latency, high-availability messaging solutions across unicast, multicast, and IPC transport paths
Tune and profile the full system stack — CPU pinning, NUMA topology, kernel bypass, receive buffer sizing — to squeeze latency out of production infrastructure
Build and extend Aeron Archive integrations for durable message replay and stream persistence
Build and design solutions that mitigate risk, implement security, and protect both systems and data
Write reusable, testable, and efficient code
Collaborate with cross-functional teams and contribute to product roadmap accomplishment
Work collaboratively on a distributed team, leveraging soft skills to effectively communicate and engage with stakeholders

Requirements

5+ years experience working with modern C++
Prior experience in at least one of the following using Linux — distributed and/or highly-concurrent systems; low-latency and/or high-volume transaction environments
Deep understanding of low-latency systems fundamentals: lock-free data structures, mechanical sympathy, cache-line discipline, busy-spin vs. park/wake tradeoffs
Experience with Aeron or comparable messaging transports (e.g. Chronicle Queue, ZeroMQ, LMAX Disruptor) highly desirable
Experience with UDP networking, multicast, and kernel-bypass techniques (e.g. DPDK, RDMA) a strong plus
Familiarity with SBE (Simple Binary Encoding) or similar zero-copy serialisation formats a plus
Experience profiling and optimising code (CPU, memory, network) — perf, flamegraphs, VTune, or equivalent
High level of proficiency in Python, Rust, and SQL strongly preferred
Demonstrated knowledge of order types, trading systems, and financial products is highly desirable
Cryptocurrency/Blockchain familiarity highly preferable
Proactive mindset with the ability to both prioritize tasks and adhere to aggressive deadlines

Skills

C++
Linux
low-latency systems
lock-free data structures
mechanical sympathy
cache-line discipline
busy-spin vs. park/wake tradeoffs
Aeron
Chronicle Queue
ZeroMQ
LMAX Disruptor
UDP networking
multicast
kernel-bypass techniques
DPDK
RDMA
SBE
zero-copy serialisation
profiling
optimising code
Python
Rust
SQL
order types
trading systems
financial products
Cryptocurrency
Blockchain

Experience Level

5+ years experience working with modern C++

Education Level

BS in a technical or quantitative field

About the Company

Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system.
Founded in 2011, Kraken is one of the world's longest-standing crypto platforms, trusted by over 10 million individuals and institutions across the globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients.

Equal Opportunity

We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.
As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, or local laws.