Visualization specialist Work, Jobs in Leyton, Gtl (with Salaries)

System Data Analytics Specialist (Fraud / Callsign Optimization)
Capitex —London
- Remote
- English
- SQL
- Machine learning
Quick apply
Senior Frontend Engineer (UK)
Pigment —London
- Full-time
- English
- APIs
- Leadership
Customer Contracts Transfer Manager (Divestitures & Mergers)
Finastra —London
- Full-time
- Hybrid work
- Management
- PMP
- Project management
- Annual leave
- Employee assistance programme
Junior Designer, Europe Foods
PepsiCo —London
- Presentation skills
- No degree
- AI
1d
Product Data Analyst
Guardian News & Media —London
- From £45,000 a year
- Full-time
- Hybrid work
- SQL
- Analysis skills
- Python
- Annual leave
- Gym membership
22h
Distribution Analyst, Theatrical Distribution, Amazon MGM Studios
Amazon Digital UK Limited —London
- Full-time
- Microsoft Excel
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- SQL
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UX/UI Designer, Mobile
Therabody Corporate —London
- £45,000 - £55,000 a year
- Full-time
- AI
- Communication skills
Quick apply
Onsite Marketing Analyst
Wayfair —London
- £42,000 - £50,500 a year
- Part-time
- Hybrid work
- Microsoft Excel
- English
- Analysis skills
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- Employee discount
6d
Innovation Ecosystem & Insights Specialist
bp —London
- Full-time
- Hybrid work
- In-person
- Negotiation
- Relocation assistance
8d
Supplier & Partner Contracts Transfer Manage (Divestments)r
Finastra —London
- Full-time
- PMP
- Project management
- Bachelor's degree
- Annual leave
- Employee assistance programme
6d
Sales Planning and Performance Specialist
UPS —Staines-upon-Thames
- Full-time
- Microsoft Excel
- Data analysis skills
- English
8d
Sales Planning and Performance Specialist
UPS —Staines-upon-Thames
- Full-time
- Microsoft Excel
- Data analysis skills
- English
8d
Global Shipping Manager
Sotheby's —London
- Microsoft Excel
- Management
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Voyage Efficiency & Optimization Specialist
Royal Caribbean Group —Weybridge
- Data analysis skills
- Bachelor's degree
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Business Intelligence Lead
WPP Media —London
- Hybrid work
- Azure
- IT
- Marketing
- Annual leave
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11d
Associate partner, research
Cluttons —London
- Full-time
- Hybrid work
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
- Employee assistance programme
- Employee discount
Quick apply
Senior Business Specialist - Data Analysis, Agile methodology
HCLTech —London
- Data analysis skills
- Project management
- Bachelor's degree
20h
UI Senior Lead Software Engineer - Commodities
JPMorganChase —London
- Full-time
- Sales
- Software development
- APIs
Applied Research & Innovation Specialist
JLL —London
- Presentation skills
- AI
Applied Research & Innovation Specialist
JAA-Jones Lang LaSalle Limited —London
- Full-time
- Presentation skills
- In-person
- AI
Quick apply

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System Data Analytics Specialist (Fraud / Callsign Optimization)

Capitex
London

Quick apply

Job details

Fixed term contract

Qualifications

Power BI
SAS
Arabic
Data structures
English
Tableau
SQL
Machine learning
APIs
Data visualisation
Communication skills
Banking
Python

Full job description

Job Title: System Data Analytics Specialist (Fraud / Callsign Optimization)

Location: Remote (Global)
Contract Duration: 6 months (with possible extension)
Client: Leading Saudi Arabian Bank
Type: Contract / Consultant

About the Role

We are seeking a System Data Analytics Specialist with deep technical expertise in fraud analytics, digital identity systems, and Callsign platform optimization. The ideal candidate will have hands-on experience configuring, tuning, and optimizing Callsign or similar fraud detection and authentication systems within a banking or financial services environment.

You will play a key role in enhancing the accuracy, performance, and effectiveness of fraud detection rules and behavioral analytics. Working closely with fraud strategy, risk, and technology teams, you’ll ensure the Callsign system is delivering maximum protection with minimal customer friction.

Key Responsibilities

System Optimization & Tuning
- Calibrate and fine-tune the Callsign fraud detection and authentication engine for optimal performance.
- Analyze data models, risk signals, and rule outputs to identify false positives/negatives and optimize model thresholds.
- Work on continuous improvement of Callsign workflows, journeys, and intervention logic.

Data Analysis & Insights
- Conduct deep analytics on fraud event data, behavioral biometrics, and system logs.
- Build dashboards, performance metrics, and reporting pipelines to monitor Callsign efficacy.
- Collaborate with fraud analytics teams to detect trends and emerging threats.

Technical Implementation
- Configure system integrations between Callsign and core banking systems, APIs, or orchestration layers.
- Support the deployment of new fraud scenarios and machine learning models.
- Manage test environments, perform regression testing, and validate production changes.

Stakeholder Collaboration
- Liaise with fraud strategy, IT security, and vendor teams to drive performance improvements.
- Document configurations, model changes, and system updates.
- Provide expert guidance on Callsign data structures, risk scoring, and orchestration capabilities.

Required Skills & Experience

Mandatory:
- Proven experience working directly with Callsign (configuration, tuning, or analytics).
- 5+ years of experience in fraud prevention, risk analytics, or authentication systems in the banking sector.
- Strong SQL, Python, and data visualization skills (e.g., Power BI, Tableau).
- Familiarity with behavioral biometrics, device fingerprinting, and event-based fraud modeling.
- Excellent analytical mindset and ability to interpret complex data flows.
- Strong communication skills in English (Arabic is a plus).

Preferred:
- Experience with machine learning models used for fraud or risk scoring.
- Exposure to other fraud platforms (e.g., ThreatMetrix, Feedzai, SAS Fraud Management).
- Knowledge of regulatory environments in MENA banking and SAMA compliance standards.

What’s Offered

Fully remote engagement – work from anywhere.
6-month contract, with possibility of renewal.
Opportunity to work with a top-tier Saudi financial institution on a strategic fraud prevention initiative.
Competitive daily rate, commensurate with experience.

Quick apply

Refine Your Search

visualization specialist jobs in leyton, gtl

System Data Analytics Specialist (Fraud / Callsign Optimization)

Senior Frontend Engineer (UK)

Customer Contracts Transfer Manager (Divestitures & Mergers)

Junior Designer, Europe Foods

Product Data Analyst

Distribution Analyst, Theatrical Distribution, Amazon MGM Studios

UX/UI Designer, Mobile

Onsite Marketing Analyst

Innovation Ecosystem & Insights Specialist

Supplier & Partner Contracts Transfer Manage (Divestments)r

Sales Planning and Performance Specialist

Sales Planning and Performance Specialist

Global Shipping Manager

Voyage Efficiency & Optimization Specialist

Business Intelligence Lead

Associate partner, research

Senior Business Specialist - Data Analysis, Agile methodology

UI Senior Lead Software Engineer - Commodities

Applied Research & Innovation Specialist

Applied Research & Innovation Specialist

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