Research Scientist – Quantum Algorithm Implementation

Quantinuum
Cambridge
3 days ago
Create job alert

We are seeking a Research Scientist in Quantum Algorithms Implementation to join the Guppy-Algorithms team within Quantinuum’s Applications organisation.


This role focuses on advancing the theory and implementation of quantum algorithms for Hamiltonian simulation and quantum linear algebra, with particular emphasis on block-encoding frameworks, Trotterisation techniques, and modern approaches such as Quantum Singular Value Transformation (QSVT).


The guppy-algorithms team operates at the intersection of quantum algorithm research and production-grade software engineering, with the goal of closing the gap between theoretical algorithm design and real quantum hardware execution. Our mission is to develop generalisable, hardware-aware quantum circuit primitives that enable scalable algorithm development across Quantinuum’s application teams, including chemistry, materials science, and quantum simulation.


As a member of this team, you will conduct original research in quantum algorithms, exploring new circuit constructions for Hamiltonian simulation and related problems. A central goal of the role is to take ideas that are often studied at a purely theoretical level and develop concrete implementations in guppy (Quantinuum’s quantum software language) that can ultimately be executed on real quantum devices. This includes translating algorithmic advances into high-quality implementations within the guppy-algorithms library, providing reusable building blocks for algorithm development across the organisation.


The role also provides the opportunity to shape how quantum algorithms interact with the full quantum computing stack. You will investigate how logical-level circuit primitives behave in the presence of quantum error correction, how they interact with different hardware architectures, and how they compile through the various layers of Quantinuum’s stack.


By working closely with teams developing error-correction frameworks, compilers, and hardware systems, you will help ensure that new algorithmic ideas move beyond theoretical proposals and become practical implementations on emerging fault-tolerant quantum computers.


Research Areas

  • Hamiltonian simulation, including Trotterisation and product-formula methods
  • Block-encoding frameworks for quantum linear algebra
  • Quantum Singular Value Transformation (QSVT) and related techniques
  • First-quantised quantum simulation using quantum arthemetic
  • Exploiting symmetry and structure in Hamiltonians to reduce algorithmic complexity using methods such as the Quantum Schur Transform
  • Development of fault-tolerant logical circuit primitives for scalable quantum algorithms

Responsibilities

  • Conduct quantum algorithm research focused on Hamiltonian simulation and quantum linear algebra.
  • Develop new methods for block-encoding, Trotterisation, and related circuit constructions in Quantinuum’s software stack.
  • Implement algorithmic primitives and subroutines in Guppylang, contributing to the guppy-algorithms repository.
  • Translate theoretical advances into robust, reusable software components that support algorithm development across Quantinuum.
  • Collaborate with error-correction, compiler, and hardware teams to optimise circuits for real quantum hardware.
  • Work with internal application teams (e.g., chemistry and quantum algorithms) to support the development of new simulation methods.
  • Contribute to research publications arising from the team’s work.

Required Qualifications

  • PhD in Quantum Computing, Quantum Algorithms, Quantum Physics, Quantum Chemistry or a related discipline.
  • Strong research background in quantum algorithms, particularly Hamiltonian simulation or quantum linear algebra.
  • Familiarity with Trotterisation, block-encoding techniques, QSVT, or related frameworks.
  • Experience implementing quantum algorithms using frameworks such as guppylang, PyTKET, Qiskit, Cirq, or similar.
  • Strong Python programming skills.
  • Experience contributing to scientific software.

Desirable Qualifications

  • Familiarity with phase estimation and quantum simulation algorithms used in chemistry or materials science.
  • Knowledge of representation theory algorithms in quantum computing such as the Quantum Schur Transform.
  • Experience with git, testing and CI pipelines
  • Interest in quantum programming languages, compilers, or resource estimation tools.
  • Rust programming experience

What is in it for you?

Working alongside a highly talented team, with leading names in the quantum computing industry. We offer a highly competitive package, equity, 28 days of paid holiday (in addition to public holidays), a workplace pension, a positive approach to flexible working and enhanced parental and adoption benefits.


About Us

Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 650 employees, including 400+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.


By uniting best-in-class software with high-fidelity hardware, our integrated full-stack approach is accelerating the path to practical quantum computing and scaling its impact across multiple industries.


By joining Quantinuum, you’ll be at the forefront of this transformative revolution, shaping the future of quantum computing, pushing the limits of technology, and making the impossible possible.


Visit our news pages to learn more about Quantinuum and our scientific breakthroughs and achievements: https://www.quantinuum.com/news


Quantinuum Intro Video: The Future of Quantum Computing


Please note that employment with us is subject to successfully passing our pre-employment screening checks. We are an inclusive equal opportunity employer. You will be considered without regard to age, race, creed, color, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, or veteran status.


#J-18808-Ljbffr

Related Jobs

View all jobs

Quantum Algorithms Scientist: Hamiltonian Simulation & QSVT

Research Scientist - Quantum Computing - 472

Research Scientist - Quantum Computing

Research Scientist, Quantum Algorithms

Research Scientist, Quantum Algorithms - 346

Quantum Algorithms Scientist - Optimization

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

How Many Quantum Computing Tools Do You Need to Know to Get a Quantum Computing Job?

Quantum computing is one of the most exciting frontiers in science and technology — and the job market reflects that excitement. But for aspiring practitioners, the sheer number of tools, frameworks, programming languages and hardware platforms can feel overwhelming. One job advert mentions Qiskit, another talks about Cirq or Pennylane. You see references to quantum annealers and superconducting qubits, to measurement hardware and simulators, to noise mitigation libraries and cloud platforms. It’s easy to conclude that unless you master every quantum tool, you’ll never get a job. Here’s the honest truth most quantum computing hiring managers won’t explicitly tell you: 👉 They don’t hire you because you know every tool — they hire you because you can apply the right tools to solve real problems and explain why your solutions work. Tools matter, but context, understanding, judgement and results matter more. So how many quantum computing tools do you actually need to know to succeed in a job search? The real answer is significantly fewer than most people assume — and far more focused by role. This article breaks down what tools really matter in quantum jobs, which ones are core, which are role-specific, and how you can build a coherent toolkit that employers actually value.

What Hiring Managers Look for First in Quantum Computing Job Applications (UK Guide)

Quantum computing is one of the fastest-evolving fields in technology, blending physics, mathematics, computer science and engineering. Roles in this space — from Quantum Algorithm Developer and Quantum Software Engineer to Quantum Research Scientist and Quantum Hardware Specialist — are highly sought after, and hiring managers are exceptionally selective. Because quantum computing is complex and multidisciplinary, recruiters and hiring managers look for clear, concrete evidence of relevant expertise and impact right at the start of your application. They often decide whether to read your CV in detail within the first 10–20 seconds, based on a handful of high-value signals. This guide breaks down exactly what hiring managers look for first in quantum computing applications, how they assess CVs and portfolios, and what you can do to optimise your application to get noticed in the UK quantum job market.

Riverlane Jobs in Quantum Computing

If you’re looking for Riverlane jobs in quantum computing, you’re aiming at one of the most important layers in the quantum stack: quantum error correction (QEC). In simple terms, Riverlane focuses on the software, methods & tooling that help quantum computers produce reliable results despite noise. That matters because as quantum hardware scales, the ability to correct errors becomes the difference between “interesting experiments” and “useful quantum computing”. This guide is written for UK job seekers who want to understand: what Riverlane does (in job-seeker language) the roles they hire for the skills that map best to their work how to tailor your CV & LinkedIn how to prepare for interviews how to find & land Riverlane vacancies in the UK You do not need to be a quantum PhD to have a realistic pathway in. But you do need to understand the problem they’re solving & position your experience around it.