Speed is Our Edge

Innovation Today,
Legacy Tomorrow.

Legacy Shift is a quantitative trading firm operating at the intersection of mathematics, engineering and market microstructure. We build the infrastructure that moves markets.

4
Asset Classes
24/7
Global Coverage
10+
Years of Research
Who We Are

Built by
Builders

We are mathematicians, engineers and physicists building the future of automated trading.

Founded by a team of quantitative researchers with deep roots in global electronic markets, Legacy Shift operates as a proprietary trading and market-making firm across equities, precious metals and FX.

Our competitive advantage lies in our technology — co-located systems, custom FPGA-accelerated execution pipelines, and research-driven alpha generation models that operate with surgical precision across multiple asset classes and time horizons.

We are not just traders. We are builders. Every signal matters.

01
Quantitative Research

Rigorous mathematical models drive every decision. Our researchers combine statistical learning with deep market microstructure expertise to discover durable alpha signals.

02
Systems Engineering

From kernel-bypass networking to custom ASIC design, our infrastructure engineers build the lowest-latency execution stack in the industry from the ground up.

03
Market Making

We provide deep liquidity across global equity, FX and precious metals markets, continuously quoting tight spreads and absorbing order flow — improving market quality for all participants.

Technology
Without Limits

Every component of our stack is purpose-built for speed, resilience, and precision. We operate at the bleeding edge of what is physically possible.

FPGA Acceleration
Custom Field-Programmable Gate Array pipelines process market data and generate orders at hardware speed, bypassing software latency entirely.
Ultra-low tick-to-trade latency
Kernel-Bypass Networking
DPDK and RDMA-based network stacks eliminate OS overhead. Microwave and fiber dark lines connect us to every major exchange co-location facility.
Sub-microsecond NIC latency
ML Signal Research
Petabytes of historical market data feed our GPU-accelerated research cluster. We run thousands of experiments daily to discover and validate new signals.
Petabyte-scale research
Risk Architecture
Multi-layer real-time risk management with hard limits, circuit breakers, and position controls — all running in hardware with no software bottleneck.
100% automated controls
Our Approach
Precision.
Discipline.
Consistency.

Our edge is not defined by any single metric. It is the product of rigorous research, battle-tested infrastructure, and a culture that prizes intellectual honesty above all else. We build systems that perform across market conditions — not just ideal ones.

Signal Discovery
Continuous alpha research
  • Microsecond-level signal generation and filtering
  • Order book imbalance and microstructure modelling
  • Microwave connectivity for ultra-low latency data across exchanges
Execution Quality
Best-in-class fill rates
  • Sub-microsecond order placement from co-location
  • Direct market access with zero intermediary latency
  • Real-time fill monitoring and execution analytics
Where We Trade

Global
Markets

We operate across four asset classes, providing continuous two-way liquidity across the world's most active trading venues — 24 hours a day, five days a week.

Equities

Continuous electronic market-making across US and European equity markets. Our systems quote both sides of the order book across major listings, tightening spreads and providing reliable depth at scale.

Foreign Exchange

Electronic market-making in major and minor FX pairs. Our systematic execution engines manage inventory risk in real time, providing consistent two-way liquidity and tight spreads across global FX venues.

Commodities

Market-making across precious metals including gold and silver in spot markets. We quote continuously across global sessions, applying the same rigorous inventory management and risk controls as our other asset classes.

Latest News

Market
Insights

Build Something
Unprecedented

We hire exceptional people across engineering, research and trading. We do not care about credentials — we care about what you can build. If you are the best at what you do, we want to talk.

Engineering
Low-Latency C++ Engineer
Zug, Switzerland
The Role

You will own the critical path of our trading infrastructure — designing, profiling and optimising systems where microseconds translate directly into edge. This is not a back-office role; your code runs live in production markets every day.

Responsibilities
  • Design and implement ultra-low-latency C++ components for order management, market data processing and execution engines
  • Profile and optimise critical paths using hardware performance counters, cache analysis and branch-prediction tuning
  • Develop and maintain kernel-bypass networking solutions (DPDK, Solarflare OpenOnload, RDMA)
  • Collaborate with FPGA engineers to define the hardware/software interface for strategy offloading
  • Evaluate and integrate new hardware to extend our latency advantage at co-located exchanges
Requirements
  • 5+ years of C++ experience in performance-critical environments (HFT, trading systems, OS or networking)
  • Deep expertise in modern C++ (C++17/20): lock-free data structures, memory models, SIMD intrinsics
  • Strong understanding of CPU micro-architecture: cache hierarchy, branch prediction, NUMA topology
  • Experience with kernel-bypass or userspace networking (DPDK, AF_XDP or similar)
  • Proven ability to profile and tune code with tools such as perf, VTune or Cachegrind
What We Offer
  • State-of-the-art co-located infrastructure and direct access to exchange feeds
  • Small, elite team — no bureaucracy, maximum ownership
  • 30 days holiday and gym membership
  • Full relocation support including visa sponsorship for exceptional candidates
Research
Quantitative Researcher — Equities & FX
Zug, Switzerland
The Role

You will generate, test and industrialise systematic alpha signals across global equities and FX markets. You will work at the intersection of applied mathematics, statistical modelling and market microstructure, operating in a fast feedback loop with our trading and engineering teams. Research is conducted with full production data and live testing capabilities from day one.

Responsibilities
  • Research and develop short-horizon alpha signals in equities and FX, from ideation through backtesting to live deployment
  • Build rigorous statistical frameworks to distinguish genuine edge from overfitting and data artefacts
  • Analyse market microstructure: order-book dynamics, adverse selection, liquidity regimes and intraday seasonality
  • Partner with execution researchers to convert signals into executable strategies that survive transaction costs
  • Maintain and improve research infrastructure: data pipelines, backtesting harnesses and performance analytics
Requirements
  • PhD or MSc in Mathematics, Statistics, Physics, Computer Science or a quantitative discipline
  • Strong command of Python and/or R for data analysis, with experience handling tick-level or order-book data
  • Expertise in statistical inference, time-series econometrics and machine learning applied to financial data
  • Deep understanding of equity or FX market microstructure and the mechanics of HFT execution
  • Experience building and evaluating backtests with appropriate controls for look-ahead bias
What We Offer
  • Direct access to full exchange order-book and tick data across all traded markets from day one
  • Rapid research-to-production pipeline — ideas can go live in weeks, not quarters
  • 30 days holiday and gym membership
  • Full relocation package and visa sponsorship where required
Engineering
FPGA Engineer
Zug, Switzerland
The Role

You will own the full development lifecycle of our hardware-accelerated trading logic — from RTL design and simulation through floorplanning, timing closure and live deployment in co-located data centres. Your work directly determines the latency floor of our trading operation.

Responsibilities
  • Design and implement RTL (VHDL/Verilog/SystemVerilog) for market data parsing, order entry and risk-check logic
  • Achieve and maintain aggressive timing targets on Xilinx UltraScale+ and/or Intel Stratix/Agilex devices
  • Implement low-latency network interfaces: 10/25/100 GbE MAC, UDP/IP stack and direct exchange protocol encoding
  • Profile on-FPGA latency and drive incremental improvements using chipscope, ILA and external instrumentation
  • Collaborate with the C++ team to define PCIe DMA interfaces and shared memory architectures
Requirements
  • 5+ years of hands-on FPGA development in a performance-critical environment (HFT, defence, telecom or aerospace)
  • Expert-level RTL design skills in VHDL, Verilog or SystemVerilog
  • Proven experience closing timing on large, complex designs with demanding clock constraints
  • Strong understanding of FPGA architecture: CLB, DSP, BRAM, transceivers and PCIe hard blocks
  • Experience implementing Ethernet networking stacks at the register-transfer level
What We Offer
  • End-to-end ownership of hardware design decisions — no outsourcing, no compromise on quality
  • Access to cutting-edge co-location facilities with direct dark-fibre exchange connectivity
  • 30 days holiday and gym membership
  • Relocation assistance and visa sponsorship available for exceptional candidates
Trading
Algorithmic Trader — Equities & FX
Zug, Switzerland
The Role

You will take ownership of strategy P&L, monitor execution quality in real time, respond to changing market regimes and work hand-in-hand with researchers and engineers to improve edge continuously. This is a role for someone equally comfortable interpreting alpha signals and reading an order book.

Responsibilities
  • Monitor and manage a portfolio of live algorithmic strategies across equities and FX spot markets
  • Analyse intraday P&L attribution, slippage and fill quality to identify execution inefficiencies
  • Respond to market regime changes and risk events with appropriate parameter adjustments or strategy suspension
  • Collaborate with the research team to evaluate new signals and translate them into deployable strategies
  • Manage exchange connectivity relationships and stay current on venue rules, fee schedules and regulatory changes
Requirements
  • 3+ years of experience in an algorithmic trading or quantitative execution role at a HFT firm, market maker or tier-1 bank
  • Strong quantitative background: statistical thinking, signal evaluation and transaction cost analysis
  • Solid Python skills for rapid analysis of trade logs, market data and strategy performance
  • Deep knowledge of equity and/or FX market microstructure: venue fragmentation, order types and fixing mechanisms
  • Ability to make rapid, evidence-based decisions under pressure in live market conditions
What We Offer
  • Direct responsibility from day one with full visibility into strategy performance and risk parameters
  • Collaborative environment with quantitative researchers and engineers working in the same open office
  • 30 days holiday and gym membership
  • Access to proprietary data, research tools and a mature analytics platform built in-house
Apply
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Connect

Headquarters
Switzerland
Global Offices
China
"Coming together is a beginning, staying together is progress, and working together is success."
— Henry Ford

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