About this role
Job Overview
About the Role:
The team:
The team is the first line of contact for delivery of the triCalculate Valuation, IM and Counterparty Credit Risk Analytics services to our clients. This junior role is focused heavily on the operational and technical foundation of client delivery. The successful candidate will analyze OTC derivative portfolios, run calculations, identify problems, instigate solutions, and provide daily technical and operational support to our clients. The core focus of this position is hands-on client data mapping and portfolio reconciliation as part of the onboarding lifecycle, alongside resolving day-to-day client technical support queries.
Responsibilities and impact:
Data Mapping & Onboarding Configuration
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System Mapping: Map and reconcile cashflow structures, trade types, and trade valuations effectively into the triCalculate platform.
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Bespoke Integration: Accommodate client-specific data configuration requests, directly aiding in setting up specialized data interpretation logic.
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Onboarding Operations: Carry out the technical and operational aspects of client onboarding, facilitating the smooth conversion of testing clients to active paying customers.
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Platform Testing: Perform validation and testing on system enhancements to ensure they meet operational goals and expectations.
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Environment Maintenance: Assist senior team members in the preparation and maintenance of the triCalculate demo and testing environments.
Day-to-Day Client Support & Operational Delivery
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First-Line Support: Provide dependable day-to-day technical and operational support to active clients and subscribers.
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Issue Investigation: Investigate routine unexpected results, failed calculations, or portfolio data issues, escalating complex mathematical anomalies to senior consultants where necessary.
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Portfolio Maintenance: Process and support day-to-day updates and changes to client trade portfolios.
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Activity Monitoring: Proactively monitor clients’ day-to-day activity on our website to ensure system stability and smooth operations.
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Basic Explanations: Explain basic model assumptions and the fundamental ideas underpinning our risk calculations to operational clients.
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Documentation & Help: Produce online help materials, maintain relevant training documentation, and assist in training internal colleagues or client operational users.
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Internal Collaboration: Communicate regularly with global team colleagues and relay operational user feedback to internal stakeholders.
What we’re looking for:
Fundamental requirement:
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Derivative Familiarity: A solid foundational understanding of OTC Derivative products and the specific operational properties that describe different types of standard trades.
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Risk & Valuation Concepts: Awareness and basic understanding of the calculation of valuation and standard risk measures associated with OTC derivatives.
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Meticulous Execution: Highly technically minded, with an analytical, structured, and detail-oriented approach to dealing with large financial datasets and data mapping.
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Strong IT Literacy: Solid IT skills; complete proficiency in standard applications (especially Excel). Practical exposure to or knowledge of a coding language (e.g., Python) is a strong advantage for optimizing data extraction and mapping workflows.
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Client-Service Orientation: Good communication skills, both verbal and written. The ability to convey technical updates accurately, meaningfully, and helpfully to clients is highly important. This is also true of internal team communication.
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Language Skills: The candidate must be fluent in Japanese both verbally and in writing to communicate with local client operations. The candidate must also be able to speak and write English to a very good level.
Additional preferred requirements:
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1–3 years (or an advanced degree with relevant internship experience) working in a role relating to OTC market operations, technical data management, or entry-level risk management at a financial vendor or financial institution.
The location: Tokyo, Japan
Our Benefits: Global vision, local impact
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At OSTTRA, our benefits philosophy offers a market-competitive package that reflects our position as an industry leader. We want to ensure you feel valued, secure, and empowered wherever you are in the world.
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Our approach is built on three core pillars:
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Global foundations: We provide a baseline of excellence across all our offices, focusing on comprehensive Health & Wellness, Financial Security, and Work-Life Balance. No matter your location, you are part of a culture that prioritizes your holistic well-being.
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Locally tailored: We benchmark in each market to ensure our packages are genuinely competitive where you live and work.
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Flexibility and growth: We empower you to work in a way that suits your life. This includes a hybrid working model, generous leave policies, and a commitment to your continuous professional development.
The Trust employee ownership plan
Every employee at OSTTRA is an owner, and a member of The Trust, our employee ownership programme. Our distinct culture encourages colleagues to think and act like owners and raise the bar constantly. This plan reflects our belief that when we work together to build a stronger, more valuable organisation, then all colleagues should benefit from the value we create.
About OSTTRA
We build and operate the infrastructure that the world’s post-trade financial system runs on. Launched in 2021, we have unified more than 20 years of heritage and expertise from four industry leaders into a single, integrated business.
Today,we operate a trusted network that connects thousands of market participants to streamline end-to-end workflows, from trade capture through portfolio optimisation.We translate industry change into workable process, engineering an open, intelligent ecosystem that removes friction and reduces risk for the global markets.
Our distinct ownership culture is underpinned by four behaviours: boldness, curiosity, accountability, and collaboration. In 2025 we were acquired by KKR, one of the world’s most successful private equity firms, and are on a journey of growth and impact.
Joining our team now is a unique opportunity - you will help to shape the next generation of post-trade, transform shared infrastructure into shared benefit, and accelerate your own career. Learn more at www.osttra.com.
Equal opportunity employer statement at OSTTRA
We are committed to fostering a connected and engaged workplace where all colleagues have access to opportunities based on their skills, experience, and contributions. Our hiring practices emphasise fairness, transparency, and merit, ensuring that we attract and retain the best talent. By valuing different perspectives and promoting a culture of respect and collaboration, we drive and operate the infrastructure that the world’s post-trade financial system runs on
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