One

FinOps - Treasury & Reconciliation 

London, London, City ofFull TimePosted Sep 8, 2026

FinOps - Treasury & Reconciliation 


Company Overview


Founded in 2017 as an OTC digital asset trading desk serving high-net-worth individuals, corporates, and institutional clients globally, ONE.io quickly recognised a broader challenge: clients in underserved sectors faced immense difficulty managing liquidity and moving fiat funds. To solve this, we expanded into comprehensive payment services, securing our FCA Payment Institution licence in 2020 and launching our proprietary platform in 2021.

Today, ONE.io provides a unified financial services solution for global clients across diverse verticals. Powered by an expansive banking network and robust regulatory framework, our platform helps businesses manage multi-currency cash positions and handle complex cross-border transactions through two core propositions:


  • ONE.io Connect: Essential treasury and operational tools, including multi-currency business accounts, global payments, and spot FX.
  • ONE.io Fusion: 24/7 digital-asset OTC and eOTC platform, custody, and a crypto payment gateway.


Through a single onboarding journey, clients access a central hub for their global operations. This includes named IBANs in multiple currencies, 24/7 liquidity and trading, and direct access to core payment rails such as SWIFT, SEPA, Faster Payments, and CHAPS.


The ONE.io Group is very culture-driven and employees live by our values which include:


Ingenuity: Constantly improving with creativity and confidence

Integrity: Brave and tenacious in pursuit of equality

Unity: A team empowered by shared beliefs and commitment

Dedication: Intuitive to our customers needs and accountable for our actions


Role Overview


We are looking for an experienced FinOps Manager to play an integral role to lead and drive towards solutions as we develop sophisticated Treasury Finance capabilities. Reporting into the CTO, with a dotted line into regulatory compliance,  this is a key hire in a fast-growing FinTech.


Key Responsibilities


  • Be the primary individual responsible for managing and enhancing the best-in-class processes intercompany treasury management, safeguarding, reconciliations and recommend design solutions for systems and tooling in conjunction with our Finance, Compliance & Engineering teams. 
  • Have strong knowledge of end-to-end reconciliation  processes for client funds, including account ledgering, netting optimisation, fx centralization, and related financial systems and reporting
  • Lead continuous improvement initiatives within liquidity by liaising with  Finance, Compliance, Legal and other internal teams to drive process improvements aiming to deliver efficiencies and automation
  • Build dashboards and custom reports to track key metrics and leveraging this data to empower and influence decision making
  • Develop and implement Treasury Finance policies for Payment accounts, multi-bank / multi jurisdictional setups.  As well as creating procedures, Governance & risk assessment and controls across a number of operational functions


Skills and Experience


  • Finance / Accounting background.
  • Demonstrable experience of daily treasury operations, including cash management, reconciliations, forecasting and systems integration.
  • Direct experience in managing and implementing changes to Intercompany funding, fx centralisation, cash pooling, netting structures and automated ledger postings.
  • Strong problem-solving skills. You enjoy taking highly complex issues and turning them into simple actionable next steps.
  • An ability to work cross-functionally and deliver on multiple projects with high attention to detail.
  • A clear willingness to "roll up their sleeves" and dive into the details. Be prepared to build from the ground up.
  • Experience writing complex business and data requirements 
  • A keen analytical eye with experience building and solving problems through systems.
  • The ability to work independently or with a small team and playing various roles from business analyst to project manager, including collaborating with senior management to solve and design for complex problems.
  • An ability to deal effectively with ambiguity and thrive in an unstructured, evolving environment.


What you’ll get in return:


  • Vitality Health Insurance
  • Enhanced Parental Leave
  • Company Options 
  • Perks at Work Reward Platform
  • Unlimited holiday policy
  • Continuous learning and development opportunities
  • Flexible working
  • Competitive remuneration
  • An amazing team with strong values of: Ingenuity, Integrity, Unity and Dedication
  • And more…


ONE prides itself on being an equal opportunities employer. We will always hire people based on merit and will never discriminate against someone based on gender, race, religion, or background.


Unfortunately, we cannot offer sponsorship at present. This is a UK based role.

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