Visualization specialist Work, Jobs in West End, Gtl (with Salaries)

System Data Analytics Specialist (Fraud / Callsign Optimization)
Capitex —London
- Remote
- English
- SQL
- Machine learning
Quick apply
Customer Contracts Transfer Manager (Divestitures & Mergers)
Finastra —London
- Full-time
- Hybrid work
- Management
- PMP
- Project management
- Annual leave
- Employee assistance programme
Associate partner, research
Cluttons —London
- Full-time
- Hybrid work
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
- Employee assistance programme
- Employee discount
Quick apply
Lead Software Engineer (UI) — Digital Markets Execution Technology (DMET), Execute
JPMorganChase —London
- Full-time
- Sales
- Software development
- APIs
Intern - Cloud & Data Specialist (67651)
Hitachi —London
- Full-time
- Computer Science
- SQL
- Machine learning
9h
Junior Designer, Europe Foods
PepsiCo —London
- Presentation skills
- No degree
- AI
4d
Product Data Analyst
Guardian News & Media —London
- From £45,000 a year
- Full-time
- Hybrid work
- SQL
- Analysis skills
- Python
- Annual leave
- Gym membership
4d
Distribution Analyst, Theatrical Distribution, Amazon MGM Studios
Amazon Digital UK Limited —London
- Full-time
- Microsoft Excel
- Sales
- SQL
6d
Onsite Marketing Analyst
Wayfair —London
- £42,000 - £50,500 a year
- Part-time
- Hybrid work
- Microsoft Excel
- English
- Analysis skills
- Work from home
- Employee discount
10d
UX/UI Designer, Mobile
Therabody Corporate —London
- £45,000 - £55,000 a year
- Full-time
- AI
- Communication skills
Quick apply
Intern - Cloud & Data Specialist (67651)
Hitachi Rail —London
- Full-time
- Computer Science
- SQL
- Machine learning
10h
Supplier & Partner Contracts Transfer Manage (Divestments)r
Finastra —London
- Full-time
- PMP
- Project management
- Bachelor's degree
- Annual leave
- Employee assistance programme
10d
Innovation Ecosystem & Insights Specialist
bp —London
- Full-time
- Hybrid work
- In-person
- Negotiation
- Relocation assistance
12d
Sales Planning and Performance Specialist
UPS —Staines-upon-Thames
- Full-time
- Microsoft Excel
- Data analysis skills
- English
12d
Sales Planning and Performance Specialist
UPS —Staines-upon-Thames
- Full-time
- Microsoft Excel
- Data analysis skills
- English
12d
Senior Business Specialist - Data Analysis, Agile methodology
HCLTech —London
- Data analysis skills
- Project management
- Bachelor's degree
4d
Voyage Efficiency & Optimization Specialist
Royal Caribbean Group —Weybridge
- Data analysis skills
- Bachelor's degree
- AI
Specialist - F&A - I2C 4B
Genpact (UK) Limited —London
- English
- Master's degree
- Bachelor's degree
Quick apply
Global Shipping Manager
Sotheby's —London
- Microsoft Excel
- Management
- Sales
Specialist - F&A - AP 4B
Genpact (UK) Limited —London
- Oracle
- English
- Microsoft Office
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 west end, gtl

System Data Analytics Specialist (Fraud / Callsign Optimization)

Customer Contracts Transfer Manager (Divestitures & Mergers)

Associate partner, research

Lead Software Engineer (UI) — Digital Markets Execution Technology (DMET), Execute

Intern - Cloud & Data Specialist (67651)

Junior Designer, Europe Foods

Product Data Analyst

Distribution Analyst, Theatrical Distribution, Amazon MGM Studios

Onsite Marketing Analyst

UX/UI Designer, Mobile

Intern - Cloud & Data Specialist (67651)

Supplier & Partner Contracts Transfer Manage (Divestments)r

Innovation Ecosystem & Insights Specialist

Sales Planning and Performance Specialist

Sales Planning and Performance Specialist

Senior Business Specialist - Data Analysis, Agile methodology

Voyage Efficiency & Optimization Specialist

Specialist - F&A - I2C 4B

Global Shipping Manager

Specialist - F&A - AP 4B

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