[Remote] Systems/Infra/Platform Engineer - HFT/Quant Trading Systems (Rust/C++)

Note: The job is a remote job and is open to candidates in USA. Batonics AB builds high-throughput quantitative trading and research platforms for leading funds and institutions. They are seeking a part-time engineer to develop end-to-end quantitative trading and research systems, including high-frequency trading platforms. Responsibilities • Show me something you’ve built (preferably using AI tools) and describe your stack. • Interview. • Task(s) (1-2hrs). • (Optional) Go head-to-head with me where we both tackle a multi-tier coding challenge (AI tools allowed). • Follow-up chat. • Decision. Skills • Experience in developing end-to-end quantitative trading and research systems • Proficiency in Rust and C++ • Experience with high-frequency trading (HFT) platforms • Ability to work part-time with potential transition to full-time • Willingness to work remotely with occasional in-person meetings • Ability to show previous work and describe technology stack used • High-performance database systems & transactional correctness (isolation/serializability) • Real-time data pipelines & market-data processing (ultra-low latency, burst tolerance) • Performance/latency optimization to sub-millisecond: CPU cache/NUMA, SIMD, vectorization, I/O tuning • Concurrency & memory models: lock-free/atomics, race detection (TSAN), contention profiling • Backend/platform architecture & multi-region reliability (failover, disaster recovery) • SRE/reliability engineering: SLOs, load shedding, autoscaling, chaos testing, tracing • GPU compute & numerical methods, plus floating-point stability and mixed precision • Formal methods & rigorous testing: model checking, property-based testing, fuzzing • Security: applied crypto (use of vetted libs), web/appsec, sandboxing (seccomp/AppArmor), secrets/keys • Distributed systems & consensus (Raft/Paxos), consistency models, backpressure, idempotency • Build systems & developer tooling: Bazel/CMake, reproducible builds, hermetic bolthires, static analysis • Supply-chain hygiene: dependency pinning/lockfiles, SBOMs, provenance/attestations • Infrastructure as Code: Kubernetes/Terraform with policy as code (OPA/Kyverno) • Experience in an HFT firm Benefits • Competitive hourly pay initially, scaling with workload and contribution to full time, revenue share possible from day 1, equity options on the table to capitalize on growth Company Overview • Batonics AB builds universal AI to automate investment analysis and scouting for the asset management industry It was founded in 2019, and is headquartered in Föllinge, Jamtlands Lan, SWE, with a workforce of 2-10 employees. Its website is