Portfolio Manager at Maven Securities Holding Ltd | New York

We are looking for an experienced Portfolio Manager who possesses a comprehensive understanding of market inefficiencies and is adept at capturing them. The ideal candidate will have significant involvement in both the research and implementation of strategies, demonstrating the ability to develop new approaches from conception to execution. The Portfolio Manager will also exhibit a solid grasp of market dynamics, leveraging this knowledge to qualitatively assess the performance of their strategies, identifying when they excel and when they encounter challenges.

Company Overview: Established in 1983, Caxton Associates is a distinguished global trading and investment firm with a presence in major financial hubs including London, New York, Monaco, Singapore, and Dubai. Our core mission is to expertly manage both client and proprietary capital across a diverse range of liquid global hedge fund strategies. This broad mandate empowers us to engage in trading across international markets and financial instruments, emphasizing alpha generation for our clientele.The Role:We are actively seeking seasoned Portfolio Managers with expertise across various strategies, including but not limited to:Discretionary MacroEmerging Markets MacroEquity Long/ShortEvent-DrivenFixed Income Relative ValueMedium-Frequency SystematicCommoditiesIn this pivotal role, you will oversee a substantial capital allocation, apply extensive risk management protocols, and thrive in our collaborative, research-focused environment. We value insightful dialogue on global macroeconomic trends, geopolitical shifts, and market dynamics. We seek professionals capable of deriving distinctive insights within their investment domains, enhancing our strategic outlook, and utilizing collective expertise to generate alpha.Key Responsibilities:Independently manage a significant capital allocation by crafting, executing, and overseeing an alpha-driven investment strategy.Build portfolios aimed at achieving asymmetric returns, with minimal correlation to conventional capital markets, by recognizing and exploiting distinctive market perspectives.Implement stringent risk management practices, consistently evaluating the validity of all positions and investment hypotheses.Engage collaboratively within a global team, sharing knowledge and adding value through shared insights and expertise.Adhere strictly to all industry regulations and internal risk management protocols.

About Man GroupMan Group is a premier global alternative investment management firm dedicated to delivering superior returns for discerning clients through our diverse Systematic, Discretionary, and Solutions offerings. Leveraging exceptional talent and cutting-edge technology, our comprehensive investment strategies encompass in-depth research and span both public and private markets across all major asset classes, with a strong emphasis on alternatives. We adopt a partnership approach with our clients, forging deep connections and developing bespoke solutions to achieve their investment objectives and those of the millions of retirees and savers they represent.Headquartered in London, we manage assets totaling $227.6 billion* and operate from multiple global offices. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is a member of the FTSE 250 Index. For more information, please visit www.man.com* As of 31 December 2025Position ResponsibilitiesWe are looking for a motivated Analyst to join our expanding Portfolio Management group within our private credit asset management division. The primary responsibilities include monitoring the performance of 15-20 portfolio companies and providing support to deal teams on assigned investments. Additional tasks involve ensuring the accuracy and comprehensiveness of financial data on our internal platform, ongoing identification and analysis of portfolio risk trends, completing quarterly portfolio account and valuation updates, collaborating with credit rating agencies to establish and maintain credit ratings, and facilitating investor reporting workflows. This role will offer the opportunity to work closely with various departments (Underwriting, Capital Markets, Business Development, Investor Relations, Operations) and external service providers on specific tasks such as fundraising and preparing materials for Board of Directors meetings.

Company Overview:Founded in 1983, Caxton Associates is a premier global trading and investment firm with a robust presence in key financial hubs, including London, New York, Monaco, and Singapore. Our core business revolves around managing client and proprietary capital using sophisticated global macro hedge fund strategies. We engage in trading across diverse global markets and instruments, ensuring a wide-ranging investment approach.Program Overview:At Caxton Associates, we are dedicated to cultivating top-tier investment talent. Our commitment to professional growth is evident in the comprehensive two-year Associate Portfolio Manager (APM) Program, initiated in 2012. This exceptional program serves as a gateway for talented buy-side investors, distinguished sell-side traders, and elite quantitative analysts across various hedge fund disciplines, encompassing discretionary macro, systematic macro, emerging markets macro, systematic trading, equity long-short, and event-driven strategies.The APM Program provides participants with immersive experiences and intensive training, honing their investment acumen with the ultimate goal of advancing to a senior Portfolio Manager role within Caxton. Over a quarter of our current Portfolio Managers have successfully transitioned through this program, a testament to its efficacy.Candidate Requirements:We are on the lookout for candidates with 3 to 10 years of experience in asset management, hedge funds, or market making. The ideal candidate will demonstrate proficiency and preferably direct experience in implementing relevant investment strategies and understanding associated markets. We value entrepreneurial spirits who are eager to develop and expand their investment strategies. The ability to work independently while collaborating effectively with various stakeholders is essential, alongside a proven track record of continuous growth and adaptation.If you have a relentless passion for financial markets and possess a strong work ethic that aligns with the criteria outlined above, we encourage you to apply. Please submit your CV, investment track record (if available), and a detailed proposal of your investment strategy, as a comprehensive strategy outline is a crucial part of your application.We look forward to discovering your potential and welcoming your contributions to the ongoing legacy of Caxton Associates.

Company Overview: Founded in 1983, Caxton Associates is a premier global trading and investment firm with a presence in major financial hubs including London, New York, Monaco, Singapore, and Dubai. Our firm specializes in managing client and proprietary capital through diverse hedge fund strategies such as discretionary macro, systematic macro, emerging markets macro, systematic trading, equity long-short, and event-driven approaches. Our objective is to generate substantial alpha for our clients by trading across a wide array of global markets and financial instruments.The Role: We are on the lookout for seasoned Portfolio Managers with expertise in Equity Long/Short strategies. In this crucial position, you will manage a significant capital allocation while ensuring robust risk management practices across all active investments. At Caxton, we champion collaboration, encouraging ongoing discussions about global macroeconomic trends, geopolitical shifts, and market dynamics. Professionals who can distill critical insights from their investment universe to enhance the collective knowledge of the team will find an ideal environment to excel and drive alpha.Key Responsibilities: Independently manage substantial capital allocations by developing, executing, and monitoring effective Equity Long/Short strategies. Build portfolios that emphasize low net delta, balanced sector and industry exposure, and significant idiosyncratic risk attribution. Perform comprehensive market and industry analysis, alongside extensive fundamental and business cycle research. Implement rigorous risk management protocols, continually evaluating the merits of all positions and investment hypotheses. Collaborate in a global team setting, contributing to and leveraging collective insights and expertise. Maintain strict adherence to industry regulations and internal company policies.

Maven Clinic is the world’s leading virtual clinic dedicated to women and families, striving to transform healthcare for everyone. Our award-winning digital solutions offer a comprehensive platform that integrates clinical, emotional, and financial support across various domains, including fertility and family planning, maternity and newborn care, parenting and pediatrics, as well as menopause and midlife health. Trusted by over 2,000 employers and health plans, Maven's end-to-end platform is designed to enhance clinical outcomes, lower healthcare costs, and ensure equitable benefits for all. Recognized for our innovative approach and industry leadership, we have proudly secured spots on prestigious lists such as the Time 100 Most Influential Companies, CNBC Disruptor 50, Fast Company Most Innovative Companies, and FORTUNE Best Places to Work. Established in 2014 by CEO Kate Ryder, we have successfully raised more than $425 million from top-tier healthcare and technology investors like General Catalyst, Sequoia, Dragoneer Investment Group, Oak HC/FT, StepStone Group, Icon Ventures, and Lux Capital. Discover more about us at mavenclinic.com.A culture of excellence and innovation – Maven Clinic has garnered over 30 workplace and innovation awards, including:Fortune Change the World (2024)CNBC Disruptor 50 List (2022, 2023, 2024)Fortune Best Workplaces for Millennials (2024)Fortune Best Workplaces in Health Care (2024)TIME 100 Most Influential Companies (2023)Fast Company Most Innovative Companies (2020, 2023)Built In Best Places to Work (2023)Fortune Best Workplaces NY (2020, 2021, 2022, 2023, 2024)Great Place to Work certified (2020, 2021, 2022, 2023, 2024)Fast Company Best Workplaces for Innovators (2022)Built In LGBTQIA+ Advocacy Award (2022)Maven is on the lookout for a driven and analytical Strategic Finance Associate who will significantly influence our financial strategies and processes as we expand. The strategic finance team operates at the intersection of various business functions, leveraging data-driven insights to inform both strategic and tactical decision-making. This role offers the chance to collaborate with operations, growth, clinical teams, and executive leadership, enabling you to construct a robust business model and steer company strategy through analytical expertise.

Company Overview:Founded in 1983, Caxton Associates is a prominent global trading and investment firm with a presence in major financial hubs including London, New York, Monaco, Singapore, and Dubai. Our core business revolves around managing both client and proprietary capital through a diverse range of liquid global hedge fund strategies, such as discretionary macro, systematic macro, emerging markets macro, systematic trading, equity long-short, and event-driven approaches. With a commitment to alpha generation, we maintain a broad mandate to trade across various global markets and instruments.The Role:We are on the lookout for an accomplished Equity Long/Short Portfolio Manager with a proven track record of generating alpha in global consumer equities. In this critical position, you will be responsible for managing a substantial capital allocation and implementing robust risk management across all active investments.At Caxton, we prioritize collaboration, encouraging ongoing discussions about global macroeconomic trends, geopolitical shifts, and the dynamics of financial markets. This role is ideal for professionals who can derive significant insights from their investment universe, contribute to team discussions, and leverage collective knowledge to enhance alpha generation.Key Responsibilities:Independently oversee a significant capital allocation by developing, executing, and monitoring an Equity Long/Short strategy.Build portfolios that prioritize low net delta, balanced factor and industry exposure, and high idiosyncratic risk attribution.Conduct comprehensive market and industry research, as well as fundamental business analysis.Implement rigorous risk management practices, continuously evaluating the rationale behind all positions and investment theses.Collaborate effectively within a global team environment, sharing insights and enhancing collective expertise.Ensure compliance with all industry regulations and internal policies.

About Aquarian HoldingsAquarian Holdings is a dynamic and diversified global holding company specializing in a strategic range of insurance and asset management solutions. Founded in 2017, Aquarian has rapidly expanded its presence in the financial sector, focusing on life and annuity underwriting, and has successfully acquired several companies to enhance its offerings.With approximately $25.8 billion in assets under management and a team of 40 investment professionals, Aquarian is committed to providing meaningful investment opportunities to millions.In November 2025, Aquarian announced a major merger with Brighthouse Financial, further solidifying its position as a leading provider in the financial services industry.

The School of Professional Studies at Columbia University is actively seeking qualified candidates for the role of Adjunct Associate Faculty in the graduate-level course on Financial Securities Analysis and Portfolio Management. This part-time position offers a unique opportunity for individuals to gain valuable experience in graduate-level instruction at one of the nation's premier educational institutions.This course delves into the intricate world of financial securities, equipping students with the analytical tools necessary to evaluate financial assets and devise effective investment strategies. It serves as a comprehensive introduction to key investment topics that are crucial for those pursuing careers in investment analysis or portfolio management.Key Responsibilities:Participate in all class sessions, assist in instructional duties, lead breakout discussions, and facilitate engaging classroom interactions.Deliver lectures, oversee instructional activities, and actively participate in classroom conversations.Assess and grade student assignments and evaluations as directed by the course Lecturer.Address student inquiries and concerns, providing support and guidance throughout the course.

About Sequence Holdings Sequence Holdings is building a new model for the American service economy by acquiring, transforming, and operating innovative companies. With $75 million raised (seed led by Conviction and 8VC, Series A led by Lux Capital), the company is positioned for significant growth. Sequence takes a hands-on approach: rather than acting as a vendor or consultant, the team invests deeply in each business, integrating technology and engineering talent to drive lasting operational change. Role Overview: Product Engineer The Product Engineer role centers on two main areas: Value Creation: Work within Sequence’s operating companies to transform human-driven processes into AI-powered systems. Deploy agents and build LLM-based workflows that solve real operational problems. The focus is on solutions that are actively used by business operators, not just prototypes. Scaling Transformation: Each transformation should strengthen Sequence’s core AI platform. By developing reusable systems, help shift acquired businesses from manual to product-driven operations and accelerate future transformations across the portfolio. As Sequence grows, top engineers will have the chance to define and lead entire verticals, working closely with both operators and investors to shape how whole industries run on the Sequence platform. Location This position is based in New York City.

Join Aircall, a leading AI-driven customer communications platform, as an Information Security Manager. With over 22,000 clients globally, we are revolutionizing customer interactions by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our mission is to empower teams to work smarter, not harder. Our cutting-edge AI technologies, including the AI Voice Agent and AI Assist, enhance efficiency, drive revenue growth, and foster rapid problem resolution. At Aircall, we are committed to building a culture that encourages innovation and growth.Headquartered in Paris, with a strong presence in North America and teams across multiple cities including New York, we are supported by top-tier investors and are at the forefront of fast-paced AI advancements.We are seeking an experienced Information Security Manager to lead our information security strategy, governance, and risk management initiatives. You will play a pivotal role in aligning our security, IT, privacy, and product teams under a cohesive framework.In this role, you will develop and enhance our governance, policy, and compliance structure, ensuring preparedness for major security frameworks while fostering a security-first culture company-wide.This position will be part of the CTO organization, collaborating closely with our Security & Infrastructure Engineering teams to establish a robust Governance, Risk & Compliance (GRC) function.

Join HUMAN Security as a Principal Product Manager, where your expertise in application security and anti-abuse will be vital in advancing our Enterprise cybersecurity and fraud initiatives. In this strategic role, you will influence the long-term product vision, shape the go-to-market strategies, and act as a key product advocate for executive clients and internal teams.This hands-on position requires collaboration with product leadership, engineering, GTM teams, and customers, fostering clarity, momentum, and innovation in our development processes. At HUMAN, our Product team consists of entrepreneurial and inquisitive individuals who collaboratively define the future. We are dedicated to our mission of safeguarding the internet, striving for rapid iteration and learning to create impactful products.Key ResponsibilitiesOversee the complete lifecycle of our Sightline platform from requirement development to launch and user adoption.Expand our presence in the Enterprise security sector by establishing strategic priorities and cooperating with engineering to deliver impactful features.Collaborate with Sales and Marketing to design and implement effective go-to-market strategies.Become the go-to expert in your product area, providing clear insights and perspectives to sales, partners, and customers.Represent the product at executive-level discussions, including roadmap reviews and strategic partnerships, enhancing product direction and customer trust.Cultivate trusted relationships with R&D to transform clear requirements into beloved features.Contribute to the evolution of product operations within HUMAN, enhancing our planning, communication, and success metrics.Guide cross-functional teams by defining a clear product vision, success metrics, and trade-offs, ensuring alignment among engineering, GTM, and stakeholders.Shape broader HUMAN strategies by engaging in product planning, positioning, pricing, and operational models to scale product effectiveness as the company grows.QualificationsOver 10 years of product management experience in SaaS, with substantial responsibility for complex, enterprise-grade products within cybersecurity, fraud prevention, anti-abuse, or related fields.Demonstrated expertise in leading product teams and driving successful product strategies.Strong analytical skills to interpret market trends and customer needs.Excellent communication skills for interaction with stakeholders at all levels.Proven ability to prioritize and manage multiple projects effectively.

Join Coast as a Security Engineer, where you'll play a critical role in safeguarding our digital infrastructure and data integrity. You will collaborate with our engineering teams to design and implement security measures, assess risks, and respond to security incidents. Your expertise will help us ensure that our systems are robust and secure against emerging threats.

Join Point72 as a Linux Security Lead, where you will spearhead our efforts to enhance the security posture of our Linux systems. In this pivotal role, you will collaborate with cross-functional teams to implement robust security measures, conduct risk assessments, and ensure compliance with industry standards. Your expertise will help safeguard our infrastructure and data integrity.

Join our dynamic team at Artemis as a Security Analyst in the heart of New York City. In this pivotal role, you will be tasked with identifying, analyzing, and mitigating security threats to our organization. You will collaborate with IT and business units to develop security policies, procedures, and best practices to ensure the safety of our data and systems.

Role Overview Datadog is seeking an Engineering Manager II focused on Source Security to join the team in New York. This position leads a group of engineers working to strengthen security protocols and safeguard Datadog’s systems. The manager’s direction shapes how the team addresses new security challenges and ensures products stay protected as threats evolve. What You Will Do Lead and mentor engineers dedicated to source security initiatives Develop and refine security protocols to protect company systems Work with cross-functional teams to design, implement, and monitor security measures Promote a culture of security awareness and proactive risk management within engineering Help integrate security best practices throughout the software development lifecycle Location This role is based in New York, New York, USA.

Join Hivemind Capital as a Senior Portfolio Manager and take charge of our public equities fund's complete lifecycle. This prestigious investment role offers full P&L ownership, demanding extensive fundamental analysis skills, conviction-based capital allocation, and active execution. We are seeking a buy-side expert who excels at evaluating equity positions from inception and managing risks throughout the investment process. As a Senior Portfolio Manager, your responsibilities will include strategic analysis, capital allocation, and optimal execution to drive exceptional fund performance. Collaborate closely with our Research, Trading, and Operations teams to develop portfolio optimization frameworks and establish best practices for operational and trading execution.

Role Overview The City of New York is hiring a Project Manager for the Division of Portfolio Management & Conversions. This position focuses on guiding projects that improve conversion strategies across multiple portfolios. The work supports initiatives that benefit the local community. What You Will Do Lead projects from planning through delivery, with a focus on conversion-related initiatives Apply project management methods to keep efforts on track and aligned with goals Coordinate with internal teams and stakeholders to support successful implementation Location This role is based in New York City.

At Momenti, we are pioneering a new era of content creation, transforming traditional media into immersive experiences that resonate deeply with audiences. Our focus is on interactive video that dismantles the 4th wall, fostering profound connections and emotions. Join us in redefining audience engagement and bringing moments to life in an innovative way.Job Overview:We are looking for a skilled and dedicated Security Engineer to become our inaugural security hire at Momenti, reporting directly to our Engineering Director. In this influential role, you will be charged with safeguarding the security and integrity of our systems, applications, and data. You will collaborate closely with cross-functional teams to identify vulnerabilities, formulate and implement security protocols, and provide continuous support to ensure a secure environment. This role offers a unique opportunity to make a lasting impact and help shape the security framework at Momenti.Key Responsibilities:• Design and implement robust security strategies, policies, and procedures to protect Momenti's technological assets.• Conduct ongoing security evaluations, vulnerability assessments, and risk analyses to uncover and mitigate potential security threats.• Work alongside software engineers and other team members to establish secure coding standards and practices to ensure secure software development.• Actively monitor and respond to security incidents, investigating and resolving breaches, intrusions, and unauthorized access attempts.• Keep abreast of the latest developments in security technologies, trends, and best practices, and provide actionable recommendations to enhance our security posture.• Conduct training sessions for employees to foster a culture of security awareness and best practices within the organization.

At profound, we are dedicated to empowering organizations with the insights and control they need over their AI presence. We are seeking a proactive Security Engineer to spearhead the security framework of our platform, infrastructure, and corporate environment. You will collaborate closely with our Engineering and Operations teams to establish and uphold security controls, compliance procedures, and threat mitigation strategies that safeguard customer data while facilitating our rapid expansion.This position is perfectly suited for an individual who perceives security as a catalyst for business growth, rather than an impediment, and who is passionate about constructing practical, scalable security systems from the ground up. As our inaugural dedicated security hire, you will play a pivotal role in shaping our strategies for access control, vulnerability management, compliance, and incident response as we grow.