Xist4 | Recruitment Agency in Bristol & London | BI, Data Science, Cyber & Leadership Roles

It Starts With the Right People

At Xist4, we believe hiring isn’t just about filling roles; it’s about building futures.

We help organisations shape what’s next and connect professionals with opportunities where they can thrive and make a real difference.

Who We Help

We support purpose-driven organisations across Fintech, Greentech and Arts, Cultural & Heritage Institutions, as well as fast-growing tech scale-ups shaping the future.

Our work spans companies building intelligent payment systems, AI-driven regulatory technology, sustainable mobility platforms, smart green infrastructure and digital transformation across culture and heritage.

Whether you are scaling rapidly, driving digital change or building a more sustainable world, we help you secure the specialist talent to get there.

Hire for Impact, Not Just Headcount

We focus where we deliver the greatest value: hiring exceptional professionals across Leadership, Business Intelligence, Data Science and Analytics, Cyber Security and Infrastructure and Cloud Platforms.

These capabilities power progress in Paytech, Regtech, Sustainable Mobility and Smart Green Technologies, and support purpose-led organisations through meaningful digital and cultural transformation.

With deep domain knowledge and a human-first partnership, we put people at the centre of every search.
The right hire does more than fill a gap. The right hire shapes what comes next.

Talent Spotlight: Real People, Real Impact

Every week, we meet outstanding professionals ready to make their next move — experts in data, analytics, cyber security and cloud platforms who share our clients’ values and ambitions.

Talent icon

Candidate Ref:
VYX45X9R8

Job Title
Data Engineer & ML Engineer

Profile Snapshot
Data engineer delivering automated ETL pipelines and cloud datasets, improving analytics with optimised SQL workflows and production ML processes.

Skills
Python, SQL, Azure, SQL Server, ETL, Power BI, TensorFlow, Pandas, CI/CD

Work Arrangement
Open

Employment Type
Permanent

Location
Bristol and Cardiff

Availability
1 month

Request details
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Candidate Ref:
6V4X4R84R

Job Title
Chief Technology Officer & AI Solutions Architect

Profile Snapshot
AI-focused CTO delivering scalable, LLM-driven and event-based platforms with distributed cloud architectures, driving automation, compliance, and digital transformation.

Skills
AI, LLMs, RAG, Python, Golang, AWS, GCP, Kubernetes, Kafka, Terraform, MLOps, React

Work Arrangement
Hybrid, Remote

Employment Type
Permanent

Location
London

Availability
Immediate

Request details
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Candidate Ref:
369W47V8W

Job Title
Principal Applied Scientist & ML Architect

Profile Snapshot
Data Science and ML expert designing AI, LLM, and RAG platforms with cloud-agnostic, distributed architectures for scalable, production-ready intelligence.

Skills
Generative AI, LLMs, RAG, LangChain, Python, TensorFlow, PyTorch, MLOps, AWS, Azure, Distributed Systems

Work Arrangement
Hybrid, Remote

Employment Type
Flexible

Location
London

Availability
1 month

Request details
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Candidate Ref:
48YVVRW65

Job Title
Fractional CTO & Engineering Manager

Profile Snapshot
Hands-on engineering leader delivering AI-driven, distributed cloud and blockchain platforms using Rust, Python and DAML for scalable, real-time systems.

Skills
Rust, Python, DAML, AI, Distributed Systems, AWS, GCP, Kafka, Docker, Blockchain

Work Arrangement
Hybrid, Remote

Employment Type
Flexible

Location
London

Availability
1 month

Request details
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Candidate Ref:
7W6Y9876X

Job Title
Proposition & Digital Product Leader

Profile Snapshot
Proposition and Digital Product Leader delivering compliant, insight-led financial solutions that drive growth, adoption, and efficiency across global

Skills
Product Strategy, Roadmapping, B2B/B2C Journeys, Service Design, Data Analytics, FCA Compliance, Agile Delivery, API Integration, Stakeholder Management, Transformation

Work Arrangement
Hybrid, Remote

Employment Type
Permanent

Location
London and commutable

Availability
3 months

Request details
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Candidate Ref:
VYXWV743R

Job Title
Data Migration Delivery Manager

Profile Snapshot
Data Migration Manager with strong financial services background, leading ETL data migrations and teams to deliver accurate, large-scale client transi

Skills
SQL, SSIS, ETL, Data Analysis, Power BI, Azure DevOps, C#, GitHub, Project Management, Stakeholder Engagement

Work Arrangement
Hybrid, Remote

Employment Type
Permanent

Location
Bristol

Availability
1 month

Request details
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Candidate Ref:
4845XV995

Job Title
GRC Cyber Security Consultant (PCI DSS QSA)

Profile Snapshot
GRC Cyber Security Consultant specialising in PCI DSS and ISO27001 compliance, delivering governance, risk, and security frameworks that strengthen or

Skills
PCI DSS, ISO27001, NIST, NCSC, GRC, Risk Assessment, Compliance, Audit, Information Security, Governance

Work Arrangement
Hybrid, Remote

Employment Type
Permanent

Location
Oxford (50 Mile Radius)

Availability
1 month

Request details
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Candidate Ref:
YR7WW8RY9

Job Title
Security Architect

Profile Snapshot
Security architect specialising in cloud, network defence and GRC. Designs platforms, improves compliance and reduces risk for high availability.

Skills
Azure, AWS, GCP, ISO 27001, NIST, GDPR, IAM, SIEM, Splunk, PowerShell, WAF, MFA

Work Arrangement
On-Site, Hybrid, Remote

Employment Type
Permanent

Location
Bristol

Availability
1 month

Request details

The Xist4 Candidate Journey Blueprint

Recruitment done properly is intentional and human.
Our Candidate Journey Blueprint is a structured process that strengthens employer brands, keeps candidates engaged and shortens time to hire without compromising on quality.

It is designed for organisations that value clarity, consistency and long-term fit, not quick fixes.

 

Sector Expertise

We work where our specialist knowledge makes the greatest difference, partnering with fast-growing scale-ups, mission-driven organisations and teams navigating change.

Fintech Startups & Scaleups

We specialise in Paytech and Regtech, helping fintechs hire leaders, engineers and data specialists who keep payments moving, protect users and build secure, compliant and scalable systems.

We recruit across product, engineering, cyber, data and AI for real-time payments, payment operations, fraud detection, identity, onboarding, AML and regulatory automation.

Greentech Organisations

Our core focus is Sustainable Mobility and Smart Green Technologies.
We partner with companies building EV charging platforms, fleet and telematics systems, mobility services, smart buildings, digital energy management and IoT-enabled sustainability solutions.

We recruit data engineers, data scientists, product managers, cloud and infrastructure specialists and cyber security professionals who turn sustainability ambition into high-performing, scalable platforms.

Arts, Cultural & Heritage Institutions

We help national museums, cultural bodies and charitable organisations modernise through digital transformation.
From cyber security and data capability to digital leadership, we recruit the talent that strengthens public engagement and long-term resilience.

Tech Startups & Scaleups

We support early-stage tech companies as they build their first leadership teams, develop BI and insight functions and strengthen cloud, engineering and security foundations for growth.

 

Looking to Build Your Team?

Whether you are hiring for growth, transformation or stability, we will help you find people who drive meaningful progress.

Register vacancy

 

Recruiting for a Key Role? Start with Insight.

Before you launch a hiring campaign, understand the market.
Our Recruitment Insight Audit (RIA) gives you clarity on salaries, job design, talent availability, sourcing channels and candidate engagement, helping you recruit with confidence.

Book My Recruitment Insight Audit

Our Core Specialisms

We specialise in the roles that drive strategy, enable intelligence, protect systems and power modern digital platforms. From senior leaders to hands-on specialists, we recruit across:

Infrastructure & Cloud Platforms icon

Infrastructure & Cloud Platforms

We recruit cloud and infrastructure specialists who build resilient, secure and scalable environments. From cloud architects to DevOps engineers, we help you hire the people who keep systems running, support growth and enable modern digital platforms.

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Senior Appointments icon

Senior Appointments

We find leaders who set direction, build high-performing teams and deliver meaningful progress. Whether you need a CTO, CISO, CDO or Director-level specialist, we identify people with the vision, capability and character to lead in complex, fast-changing environments.

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Cyber Security icon

Cyber Security

We help you secure the talent that protects your systems, data and people. From SOC analysts to information security leaders, we find cyber specialists who strengthen your security posture, safeguard critical infrastructure and reduce operational risk.

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Data Engineering & Architecture icon

Data Engineering & Architecture

We connect you with data engineers and architects who design the pipelines, platforms and frameworks your organisation relies on. These are the specialists who ensure your data is accessible, reliable and ready for real-time insight and intelligent decision-making.

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Data Science & Analytics icon

Data Science & Analytics

Our data science and analytics recruitment services connect you with talented professionals who transform raw data into actionable insights, driving strategic decisions and enhancing business performance.

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Business Intelligence & Insights icon

Business Intelligence & Insights

We recruit BI professionals who transform information into intelligence. These specialists help you understand performance, monitor trends, communicate insight and support better commercial and operational decisions across your organisation.

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If you want to go fast, go alone. If you want to go far, go together.

African Proverb

People First, Always

Great recruitment goes beyond matching CVs to job descriptions.
It is about understanding people, recognising potential and creating fair, inclusive processes that bring out the best in everyone.

By hiring for skill and mindset, not background alone, we help build stronger, more diverse teams where everyone has the chance to thrive.

Principles

Purpose-Driven by Design

Recruitment is a lever for shaping fairer, more sustainable workplaces and communities.

Guided by UN SDG 8
We champion decent work, fair pay and equal opportunity, supporting meaningful roles and long-term career growth.

Backing Bristol’s One City Plan
We support the city’s ambition for a fairer, healthier and greener Bristol by 2050, from inclusive hiring and skills development to empowering businesses in sustainable sectors.