Job Description

ION Platform Specialist - Trading & Risk Systems (Dev / Support / BA)

Join MARGO in the UK (London) - Perm & Contracting Opportunities

MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry.
We specialise in complex trading and risk environments built around critical platforms where reliability, workflow consistency and business interaction are key. Our consultants work close to Front Office, Risk and Operations teams on systems that are central to trading activity and decision-making.
Joining MARGO means working on niche, high-impact platforms, while benefiting from a human-sized structure, close follow-up and tailored career paths.

Business Context

You will work within trading, risk or post-trade technology environments built around ION platforms.
These platforms support end-to-end workflows including:trade capture and lifecycle management risk and valuation processes operational and regulatory flows integration with upstream and downstream systems

The role involves close interaction with business users and strong ownership of platform behaviour in production environments.

Role Overview

We are looking for ION Platform Specialists to work on production-critical trading and risk platforms.
This role is intentionally open and may suit profiles with a background in:development application or production support business analysis or hybrid roles combining several of these aspects

What matters most is strong ION platform expertise, production awareness and the ability to work effectively with business stakeholders.

Key Responsibilities

Platform Ownership & Production

Work on ION platforms supporting trading and risk activities Ensure platform stability, data integrity and workflow consistency Investigate and resolve production incidents Act as a key point of contact between technology and business users Participate in platform upgrades and release activities

Configuration, Development & Integration

Configure and customise ION modules and workflows Develop or enhance scripts, integrations and platform components Work on interfaces with surrounding systems and data sources Contribute to performance tuning and platform optimisation

Business Interaction & Analysis

Work closely with Front Office, Risk or Operations users Understand business processes and translate them into platform solutions Participate in requirements analysis, testing and delivery Support users during change and onboarding phases

Technical Environment

Core Technologies

ION platforms SQL / relational databases Scripting and automation Linux / UNIX environments

Valued Technical Exposure

Trading, risk or post-trade systems Market data or valuation flows Integration architectures Development experience (any language)

Required Experience & Skills

Essential

Hands-on experience with ION platforms Experience working on production-critical systems Strong understanding of trading or risk workflows Ability to interact confidently with business users Strong analytical and problem-solving skills Ownership and production mindset

Valued (but not restrictive)

Development background Application support or FO support experience Business analysis experience in trading or risk environments Exposure to Front Office or Risk teams

Why Join MARGO

Access to niche ION trading and risk platforms High-impact roles close to business activity Flexibility across dev, support and BA-type assignments Strong focus on platform expertise rather than job titles Human-sized consultancy with close support and long-term career focus

Please note - We do not offer visa sponsorship for this position.

Interested? Motivated? Apply on our website or at

[email protected]

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.