
Sparta · London
We Are Sparta Sparta is the next-generation commodity trading platform. We give trading desks the clarity, control, and collaboration they need to move faster ...
We Are Sparta
Sparta is the next-generation commodity trading platform.
We give trading desks the clarity, control, and collaboration they need to move faster and trade smarter.
In February 2025, we secured $42 million in Series B funding. Now we’re scaling up across the business, and it’s an exciting time
to join.
Our people are the driving force behind everything we do. At Sparta, you’ll be trusted to take ownership, backed by a team who
wants you to succeed. You’ll be challenged, supported, and given room to grow. Because building something this ambitious takes
everyone at their best.
At Sparta, your work has reach. From improving our platform, to powering smarter decisions for our customers, to changing how
commodity trading is done around the world.
And because we’re growing fast, you won’t just build your career. You’ll accelerate it, with a level of ownership and impact you
simply don’t get at bigger, more bureaucratic companies.
Head of Research
Sparta’s research is how the market gets to know us. Our Market Outlook pieces, commentaries and podcast are read and heard by
traders across the industry — they carry the credibility behind everything we sell, and they feed the top of our sales funnel.
As Head of Research, you’ll own that output: the standard it’s held to, the schedule it ships on, and the voice it carries. This
is a senior, visible, client-facing role — you’ll be our most senior market voice, fronting webinars, media appearances, client
briefings and the podcast, while coaching a team of commodity specialists to write sharper research. You’ll also work directly
with our founders to design Sparta’s supply & demand fundamentals offering, and become the face of that offering as it develops.
What you'll be doing
Product Experts.
naphtha/LPG).
About you
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tracking and inventory data.
Nice to have
This is a rare chance to be the senior market voice for a fast-growing, VC-backed platform — with real ownership over Sparta’s
fundamentals story as it’s built from the ground up.
Sparta Commodities is proud to be an equal opportunity employer and promotes diversity within its workforce. We are determined
that no-one will ever receive less favourable treatment on the grounds of gender, age, disability, religion, belief, sexual
orientation, marital status, race, veteran status or any basis covered by appropriate law.
ABOUT SOTHEBY'S Established in 1744, Sotheby’s promotes access and ownership of exceptional art and luxury objects through auctions, private sales and retail. Our deep expertise across 70 selling categories is supported by a leading technology platform and a global network of specialists spanning 40 countries. Selling categories include Contemporary Art, Modern and Impressionist Art, Old Masters, Chinese Works of Art, Jewelry, Watches, Wine and Spirits and Design, as well as collectible cars and real estate through RM Sotheby’s and Concierge. Sotheby’s Financial Services is a leading art lender and provides capital solutions for collectors around the world, having originated more than $12 billion in loans since its inception. Sotheby’s new global headquarters is now open at the iconic Breuer building at 945 Madison Avenue in New York City. THE ROLE The Researcher will be a key member of the Old Master Paintings department in London, providing critical support across valuations, business development, and cataloguing initiatives. A significant aspect of the role will involve undertaking a wide range of research projects the department and particularly for the Head of British Paintings, delivering rigorous and insightful analysis to support specialist decision-making and client-facing activities. The position will play an integral role in the department's strategic efforts and business-getting initiatives. The successful candidate will be responsible for producing high-calibre research upon which specialists and senior leadership will rely, often under tight deadlines. This role requires an exceptionally organized and detail-oriented individual who can manage multiple projects simultaneously, prioritize effectively, and consistently deliver accurate, thorough work in a fast-paced and dynamic environment. The role is based in London and requires regular on-site presence. KEY RESPONSIBILITIES * Conduct and deliver high-quality research in support of valuations, proposals, cataloguing projects, and other departmental initiatives. * Support senior specialists in research, appraisals, and business-getting activities, with particular responsibility for aiding the Head of British Paintings. * Work with the Head of British Paintings to ensure all valuations and research projects are completed thoroughly and in a timely manner. * Prepare comprehensive research for works to review and present in weekly meetings with senior members of the department. * Update research in the various internal database, ensuring accuracy, consistency, and completeness of records. * Maintain an organised and easily accessible research file for every project. * Identify and consolidate research data from a wide range of archival, institutional, and published sources. * Assist the cataloguing team with condition reports ahead of each sale. * Operate in full accordance with company policies, compliance requirements, and corporate governance standards. * Maintain the highest standards of professionalism at all times. Skills, Experience & Competencies * Demonstrable specialist knowledge of Old Master Paintings. * Undergraduate degree or equivalent qualification required. * Proven ability to conduct rigorous research using archives, libraries, catalogues raisonnés, databases, and other reference sources. * Excellent written and verbal communication skills. * Strong organisational skills, with the ability to manage multiple projects and deadlines effectively. * High level of accuracy and attention to detail. * Commitment to delivering outstanding client service. * Ability to work independently while contributing effectively as part of a collaborative team. * Flexible, adaptable, and receptive to change. * Strong interpersonal skills and the ability to build relationships across departments and international teams. * Additional language skills would be advantageous. To view our Candidate Privacy Notice for the US, please click here [https://www.sothebys.com/en/docs/pdf/candidate-privacy-notice.pdf]. To view our Candidate Privacy Notice for the UK, Hong Kong, France and Switzerland, please click here [https://www.sothebys.com/en/docs/pdf/final-v1-sothebys-recruitment-privacy-notice-uk-hk-france-and-switzerland-31-january-2022.pdf?locale=en]. The Company is an equal opportunity employer and considers all applicants for employment without regard to race (including, without limitation, traits historically associated with race, such as natural hair, hair texture, and protective and treated or untreated hairstyles), color, creed, religion, sex, sexual orientation, marital or civil partnership/union status, national origin, age, disability, pregnancy, genetic predisposition, genetic information, reproductive health decision, sexual orientation, gender identity or expression, alienage or citizenship status, domestic violence victim status, military or veteran status, or any other characteristic protected by federal, state/province or local law. The Company complies with applicable state and local laws prohibiting discrimination in employment in every jurisdiction in which it operates.
ABOUT US PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive. ABOUT THE TEAM PhysicsX is building AI that transforms how the world’s most complex engineering problems are solved. As the company scales rapidly following our Series B, we’ve built a dedicated Strategy & Programs function whose mission is to ensure we scale gracefully — with clarity, alignment, and discipline. The team sits at the intersection of strategy and execution. We own the company’s strategic planning process, drive cross-functional programs that upgrade how PhysicsX operates, and serve as the connective tissue that holds a fast-growing organisation together. Learn more about the team here - https://www.physicsx.ai/newsroom/scaling-gracefully-inside-physicsxs-strategy-programs-team THE ROLE The Research Program Manager works across PhysicsX's most important research initiatives — from foundation model development to methods research — partnering with research leaders to turn ambitious research goals into clear plans and sustainable progress. You will own the operational backbone of our research programmes — planning, milestones, dependencies, and reporting — so that scientists and engineers can stay focused on the science. Working shoulder-to-shoulder with the Head of Research and technical leads, you will sit at the intersection of Research, Delivery, Product, and external partners, keeping momentum across multiple parallel efforts and connecting the technical work to strategy and business outcomes. This is a London-based role with 2–3 days per week in our central office. WHAT YOU’LL DO * Act as a trusted sounding board to research leads on the plans, priorities and decisions that matter most, synthesising, problem-solving and driving solutions forward * Create clarity and resolve ambiguity, help translate high-level objectives into smaller manageable objectives. * Own the planning and delivery cadence for research streams — crystalise and maintain roadmaps with clear milestones, owners, and decision points, working closely with research leads and technical partners. * Run effective operating rhythms and rituals (stand-ups, planning sessions, reviews, and retrospectives) with clear agendas, captured decisions, and tracked follow-ups. Track progress against plans, surface risks and dependencies early, and drive them to resolution before they become blockers. * Foster collaboration across Delivery, Product, Engineering, and Operations, to align priorities, secure resources, and remove friction for the research team for key streams. * Act as a translator and bridge between the technical and the strategic direction — maintain a single source of truth for research project status, scope, and reporting, and create clear and concise materials that communicate the work done to internal and external stakeholders. * Drive strategic research collaborations and partnerships — coordinate timelines, deliverables, and communications with external research partners and customers. * Support resourcing and capacity planning across concurrent research efforts, balancing near-term delivery with longer-term research objectives. * Help coordinate research outputs — papers, conference attendance, internal demos — so deadlines and commitments are met. Review or contribute to high-level output where possible to improve messaging (e.g. in blogs). * Coach individuals through complex challenges and ensure the conditions are in place to enable high-performing teams to produce pioneering work WHAT YOU BRING * 3+ years of experience in program management, strategic operations, or consulting, ideally in a research, R&D, deep-tech environment, or other complex content work. * Experience partnering with leaders in fast-paced environments, acting as a sounding board and thought partner on important projects, initiatives and decisions. * Comfort operating in ambiguous settings with shifting context — you bring structure without slowing people down and enjoy environments where you can implement creative and innovative ideas which drive organisational performance. * Excellent stakeholder management and communication skills; able to develop high-trust relationships and influence without authority, adapting your message for audiences from individual contributors to executives. * Strong problem-solving skills — the ability to analyse issues, identify root causes, and drive practical solutions quickly. * Attention to detail and commitment to high-quality output, while keeping in mind the bigger picture and adjusting accordingly. * Enough technical literacy to engage credibly with researchers and engineers — you can follow technical discussions, understand dependencies, and ask the right questions. A background in a quantitative, scientific, or engineering field is a plus. * Familiarity with modern project-management and collaboration tooling (e.g. Notion, Linear, GitHub). NICE TO HAVE * Experience managing research programmes involving machine learning, simulation, or scientific computing. * Experience coordinating external research partnerships, grants, or academic collaborations. * Knowledge and experience in utilising coaching techniques to foster high-performance teams * Exposure to a high-growth, scaling technology company. WHY JOIN PHYSICSX? Build what actually matters Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and society. This is work with real-world impact - and something you can be proud to stand behind. Learn alongside exceptional people Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and about helping each other get better. We come from diverse backgrounds, but we share a commitment to operating at the highest level and addressing some of the most complex challenges out there. If you’re ambitious, thoughtful, and driven by impact, you’ll feel at home. Influence over hierarchy We operate with a flat structure: good ideas win - wherever they come from. Questioning assumptions and challenging the status quo isn’t just welcomed, it’s expected. Sustainable pace, long-term ambition Building meaningful technology is a marathon, not a sprint. We believe in balancing focused, ambitious work with a life beyond it. Our hybrid model blends time together in our Shoreditch office with work-from-home days, giving you the flexibility to work sustainably while staying connected in person. And it doesn’t stop there … 🚀 Equity options - share meaningfully in the company you’re helping to build. 🏦 10% employer pension contribution - because investing in future matters. 🍽️ Free office lunches - to keep you energised and focused. 👶 Enhanced parental leave - 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility during the moments that matter most. 🍼 YellowNest nursery scheme - to help working parents manage childcare costs. ☀️ 25 days of Annual Leave (+ Public Holidays) - because taking time to rest matters. 🏥 Private medical insurance - 100% employee cover, giving you complete peace of mind. 💪 Wellhub Subscription - gain access to thousands of gyms, classes and wellness apps, supporting both physical and mental wellbeing. 👀 Eye tests - because good work depends on good health. 📈 Personal development - dedicated support for learning, development, and leveling up over time. 💛 Employee Assistance Programme (EAP) - confidential wellbeing support, available whenever you need it. 🚲 Bike2Work scheme and 🚆 Season ticket loan - to make getting to work easier and greener. 🚗 Octopus EV salary sacrifice - for a simpler, more sustainable way to drive electric. 🔎 Watch this space, we’re continuing to build this as we grow… We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality, disability, age, sexual orientation or gender identity. We strongly encourage individuals from groups traditionally underrepresented in tech to apply. To help make a change, we sponsor bright women from disadvantaged backgrounds through their university degrees in science and mathematics. We collect diversity and inclusion data solely for the purpose of monitoring the effectiveness of our equal opportunities policies and ensuring compliance with UK employment and equality legislation. This information is confidential, used only in aggregate form, and will not influence the outcome of your application.
OVERVIEW Physical AI, a real model of the world, is the next trillion dollar opportunity and a foundational pillar for energy, robotics and superintelligence. At Jua we are building it now. Our models already run on four continents and help power the energy buildout needed to support ever larger intelligence. We are assembling a world-class team of researchers and entrepreneurial minds to turn this model into reality at global scale. If you want the opportunity of your life, come build physical AI with us. WHAT WE’RE LOOKING FOR We’re looking for an ambitious Account Executive to accelerate growth across our B2B platform product. You’ll own the full sales cycle, from outbound prospecting to onboarding, focused on high-velocity, smaller-ticket deals in the energy trading space for both technical and non-technical decision makers. This is a high-impact, high-ownership role at the foundation of our commercial organization. You’ll work closely with the CEO and Head of Sales to shape our go-to-market strategy, refine the sales playbook, and drive the initiatives that power our next stage of growth. You’ll thrive in this role if you’re energised by fast-paced, high-pressure environments, have a hunter mentality, and are comfortable navigating ambiguity to get results. RESPONSIBILITIES AND TASKS * Own the full sales cycle from prospecting and outreach to negotiation and closing, using solution- and value-based selling techniques * Conduct discovery calls, deliver tailored presentations and demos * Drive new business across our self-serve and platform offerings, with a focus on high-velocity deals * Build and manage a qualified pipeline with targeted outbound strategies for key verticals * Understand customer pain points and communicate our value proposition with clarity and impact * Maintain accurate, up-to-date CRM records (Hubspot), including opportunity details, timelines, and next steps, to support forecasting and performance tracking * Act as the main point of contact post-sale, ensuring smooth onboarding, strong early adoption, and long-term account health * Identify upsell opportunities and proactively address churn risks through ongoing customer engagement * Collaborate with cross-functional teams (Engineering, Product) to navigate deals efficiently and share insights that shape product development * Support renewal and expansion conversations to drive customer growth * Travel as needed to attend industry events and meet customers NEED-TO-HAVE * 3-5 years of B2B sales experience in a high-growth, early-stage startup environment * Previous success in selling new product categories as opposed to being a "price configurator.” * Possess a high technical aptitude and a hunter mentality * Background in trading (energy, commodities, or financial markets) * Proven track record of high performance and exceeding targets * Strong domain knowledge of the weather or energy industry * Ability to “speak the language” of traders, meteorologists, and technical decision-makers, and serve as a trusted advisor NICE-TO-HAVE * Advanced degree (PhD or MSc) in a quantitative discipline * Has built automated outbound channels with tools such as CRM, Clay, etc. PERSONAL ATTRIBUTES * You are all in, are able to travel frequently, willing to work long hours and do whatever it takes to win * You are highly intelligent and combine this with a strong execution bias * You move fast, make smart decisions under pressure, and thrive in ambiguity * You take initiative and don’t wait on instructions * You’re a highly creative problem solver that can hack solutions Please note: We prioritise your answers to the application questions over your CV, so we encourage you to complete them as thoughtfully and thoroughly as possible. At Jua, we foster a performance culture and value people who embody our beliefs of service and adventure. We prioritize agility, operating at the highest clock speed to adapt quickly to change. We innovate on behalf of our users and leverage data supremacy to maintain our competitive edge. Through clear communication and fact-based decision-making, we ensure alignment in our pursuit of excellence. With these principles, we aim to create a customer-focused, value-centric organization that sets new standards in the industry. We value the unique perspectives that each individual brings to the table and believe that embracing diverse backgrounds and experiences enriches our collective journey towards growth and success.