Jobs at Arcesium

Supports corporate technology initiatives for a hybrid work environment, including systems engineering, automation, unified communications evaluation and deployment, and reducing manual operational tasks. The intern collaborates with experienced engineers and applies scripting, infrastructure, security, cloud computing, systems administration, and software development skills to solve business problems.

Drafts and negotiates customer, vendor, licensing, technology, purchase, service, and consulting agreements. Advises business teams on intellectual property, generative AI, contract interpretation, and related legal matters. Reviews RFPs and due diligence questionnaires, coordinates with outside counsel, and supports corporate, employment, and litigation matters. Requires independent judgment, strong analytical and drafting skills, and the ability to manage competing priorities in a fast-paced environment.

Software Engineer Interns will collaborate with full-time engineers to build, scale, and ship applications and features for Arcesium’s cloud-based enterprise SaaS platform. The role provides exposure to core platform development, modern software systems, and next-generation technology while emphasizing teamwork, problem solving, communication, and professional growth.

Leads talent management and organization effectiveness initiatives across a global Human Capital function. Partners with senior leaders on organization design, performance management, talent assessment, promotion processes, career architecture, capability development, and workforce insights. Develops scalable people frameworks, analyzes organizational and talent data, supports global initiatives, and influences stakeholders through strategic recommendations and practical execution.

Infrastructure Engineering Interns help build and automate Arcesium’s cloud-based SaaS infrastructure. Responsibilities include supporting Linux and cloud systems, contributing to AWS, Kubernetes, Docker, SRE, CI automation, developer experience, secrets management, and application-infrastructure integration. Interns collaborate with experienced engineers on infrastructure projects while developing software and systems engineering skills.

Provides executive assistance and office administration for the Lisbon office and global leadership. Responsibilities include calendar management, meeting and event coordination, vendor and facilities support, leadership travel logistics, local bookings, cross-functional collaboration, and ad hoc project completion. The role requires strong organization, communication, discretion, multitasking, Microsoft Office proficiency, and 4–6 years of relevant executive assistant experience.

Perform daily trade, position, swap mark-to-market, cash, GAV, and NAV reconciliations. Manage OTC product settlements and swap resets, investigate P&L movements, resolve discrepancies with internal teams and external administrators, support month-end close, record accounting adjustments, and assist with reporting, technology projects, and user acceptance testing.

Manages trade accounting and operations, including trade, position, swap MTM, cash, income, and expense reconciliations; OTC settlements; exception resolution; accounting close support; audits and NAV finalization. Oversees team performance, escalations, process improvements, strategic initiatives, technology projects, reporting, product implementations, and user acceptance testing while coordinating with investment managers, brokers, administrators, and internal teams.

Manage private fund accounting client implementations, including requirements gathering, fund structure and workflow review, data mapping, transformation, loading, reconciliation, investor allocations, and NAV/GAV calculations. Collaborate with project management, technology, and client stakeholders to onboard private capital markets data onto Arcesium’s platform, support bespoke reporting and testing, and improve implementation tools.

Build and deploy production-grade AI agents, workflow automations, and internal applications that improve enterprise processes. Partner with business, operations, engineering, and security teams to identify use cases, design reliable agent architectures, prototype with LLMs and agent frameworks, measure impact, and drive adoption. The role requires strong systems engineering, API, data, and workflow design skills, along with the ability to translate ambiguous business problems into scalable technical solutions.

Leads trade affirmation, confirmation, and settlement operations for OTC derivatives and other asset classes. Oversees discrepancy resolution, settlement breaks, controls, regulatory change readiness, client onboarding, process improvements, automation initiatives, and audit support. Partners with counterparties, prime brokers, custodians, investment managers, and internal teams. Manages and develops analysts and managers while improving straight-through processing and reducing operational risk.

Own product features for a portfolio and P&L accounting platform, from concept and requirements through engineering delivery and testing. Develop product specifications, roadmaps, business test cases, and validation processes while managing risks and escalating issues. Apply accounting and fund/portfolio knowledge, collaborate with engineering, product, operations, and client-facing teams, and ensure accurate, timely outcomes.

Oversee hedge fund post-trade operations, including trade, position, cash, swap MTM, income, expense, and settlement reconciliations. Lead exception resolution, accounting close support, NAV finalization, audits, and collaboration with investment managers, brokers, administrators, and internal teams. Manage team performance, prioritize strategic initiatives, and support technology projects, reporting, product implementations, specifications, and user acceptance testing.

Build high-performance, data-dense financial UIs with React and TypeScript, including virtualized grids, real-time views, reusable MUI components, and accessible workflows. Architect Node.js/TypeScript Backend for Frontend services, integrate backend APIs, optimize web performance, and collaborate with product, design, engineering, and business stakeholders. Contribute to AI-assisted development, legacy application migration, and agent-enabled user experiences.

Own the architecture, automation, health, and technical roadmap of a large Linux developer-compute fleet spanning AWS WorkSpaces, WSL, and related infrastructure. Diagnose complex Unix, identity, package-management, container, and connectivity issues at root cause; codify fixes in Ansible; support OS and regional rollouts; improve observability and self-service tooling; and mentor engineers through high-impact escalations.

Own end-to-end portfolio accounting and reconciliation for complex funds across listed and OTC asset classes. Perform daily trade, position, cash, P&L, and corporate action reconciliations; finalize GAV/NAV; investigate breaks and P&L movements; coordinate with counterparties, administrators, clients, and internal teams; and support reporting, special projects, and UAT testing.

Provides local IT support for the Lisbon office, including employee onboarding, hardware provisioning, workstation and conference-room support, inventory, procurement, and troubleshooting. The role also develops software infrastructure skills through scripting, Ansible automation, GitLab CI/CD, AWS support, Linux administration, and documentation. The position suits an early-career professional who can work independently onsite while collaborating with distributed senior engineers.

Lead product strategy and roadmap development for financial reporting solutions serving hedge funds and alternative asset managers. Conduct market and competitor research, gather client feedback, prioritize features, collaborate with engineering and architecture teams, validate product delivery against specifications, and manage business cases, timelines, budgets, releases, and cross-functional initiatives.

Lead product strategy and go-to-market planning for an agentic AI platform. Translate client feedback, market intelligence, and competitive insights into AI roadmap priorities, use cases, launch narratives, and executive materials. Collaborate with Product, Engineering, Sales, Marketing, and Communications, while representing the company with clients, analysts, industry groups, and technology partners.

Own and evolve a tax product for the alternative investment industry, translating complex hedge fund tax workflows into scalable technology solutions. Define requirements, prioritize the roadmap, partner closely with Engineering through production delivery, address client questions, and support product vision. The role requires deep US hedge fund tax expertise, hands-on experience shipping tax technology solutions, and strong independent execution and communication.