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Quick apply
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Senior Cybersecurity Developer / Application Security Architect (Equity Only)

HolistiQ Holdings
Remote

Quick apply

Job details

Permanent | Full-time
£54,940.34 - £120,782.31 a year
5 hours ago

Benefits

Profit sharing

Qualifications

Penetration testing
ASP.NET
Azure
Unreal Engine
Kubernetes
.NET Core
C#
Microsoft SQL Server
Test-driven development
.NET
Java
xUnit
AWS
C++
Docker
PostgreSQL
Distributed systems
REST
Software development
Unity
GitHub
APIs
S3
Cybersecurity
SaaS
GitLab
Spring framework
SDLC

Full job description

About HolistiQ Technologies

HolistiQ Technologies is building a portfolio of innovative digital products across marketplace, lifestyle, hospitality, technology, and future gaming sectors.

We are not looking for someone to simply monitor systems, produce reports, or tick compliance boxes.

We are looking for someone who thinks differently.

Someone who naturally questions how systems can be exploited, how trust can be broken, and how vulnerabilities can be eliminated before they become problems.

Someone who can think like an attacker, build like an engineer, and lead like an architect.

As our ecosystem continues to grow, security will be embedded into every product, feature, transaction, reward system, customer interaction, and business partnership. We believe security is not an afterthought—it is a competitive advantage.

Role Overview

This is a strategic technical leadership opportunity for an experienced Cybersecurity Developer / Application Security Architect who wants to play a key role in shaping the future of multiple products and platforms.

You will work alongside our senior engineering team to design secure architectures, challenge assumptions, identify weaknesses before others do, and build secure, scalable, and resilient systems from day one.

The successful candidate will become part of our core leadership team, helping define security strategy, governance frameworks, technical standards, and long-term product architecture across the HolistiQ ecosystem.

Required Experience

Minimum 8 years’ experience in software development, cybersecurity, application security, or security architecture
Proven experience securing production applications, APIs, cloud-native environments, and distributed systems
Experience conducting vulnerability assessments, penetration testing, threat modelling, and security reviews
Strong understanding of Secure Software Development Lifecycle (SSDLC)

Application Security

OWASP Top 10
OAuth2, OpenID Connect, JWT
Authentication and Authorisation Systems
Role-Based Access Control (RBAC)
API Security
Secure Coding Practices
Threat Modelling
Fraud Prevention and Abuse Detection
Identity and Access Management (IAM)

Cloud Security & DevSecOps

AWS Security (API Gateway, Cognito, Lambda, S3, RDS/Aurora)
Azure Security (DevOps, App Services, KeyVault, Cosmos DB)
Docker Security
Kubernetes Security
GitHub Security Workflows
GitLab CI/CD or Azure Pipelines
DevSecOps Methodologies
Secrets Management
Infrastructure Security

Backend & Technical Knowledge

C# .NET / .NET Core / .NET 6–8
Java (Spring or similar)
ASP.NET Web API
REST APIs (Swagger/OpenAPI)
Microservices Architecture
PostgreSQL
SQL Server

Security Testing & Automation

Playwright
SpecFlow
xUnit
Security Testing Automation
Vulnerability Scanning
SAST and DAST Tooling
TDD and Secure Development Practices

Security Governance & Compliance

Cyber Essentials
Cyber Essentials Plus
ISO 27001
GDPR
UK Data Protection Act 2018
Security Policies and Governance Frameworks
Incident Response Planning
Security Monitoring and Audit Controls

Highly Desirable Experience

Marketplace Platforms
SaaS Products
E-Commerce Systems
Payment Platforms
Loyalty and Rewards Programmes
Digital Wallets
Platform Credits and Cashback Systems
Subscription-Based Platforms
Fraud Detection Systems

Gaming & Interactive Systems (Advantageous)

Unity Engine (C#)
Unreal Engine (C++)
Multiplayer Systems Security
Virtual Economies and Reward Systems
Anti-Fraud and Anti-Cheat Concepts
Gamification Systems and Engagement Mechanics
Digital Asset and Transaction Security

Compensation & Structure

This role forms part of our core leadership team and is structured around:

60% equity participation within the HolistiQ Technologies ecosystem
Profit sharing linked to long-term company growth
Strategic influence over security, architecture, and technical standards
The opportunity to help shape multiple products across several industries

This is not a traditional employment opportunity. We are looking for someone who wants to help build, protect, and scale innovative technology platforms while sharing in the long-term value they create.

The salary field shown on Indeed is a platform requirement and should be treated as a placeholder only.

Who This Is For

This opportunity is for someone who:

Naturally looks for vulnerabilities others miss
Enjoys breaking systems to understand how they can be improved
Thinks like a hacker but builds with integrity
Wants influence over technical strategy and security direction
Believes security should be designed into products, not added later
Enjoys solving complex technical challenges
Wants to be part of a long-term vision rather than a short-term project
Values ownership, accountability, and innovation

Who This Is Not For

This role is not suitable for candidates seeking:

Traditional corporate cybersecurity roles
Box-ticking compliance positions
Fixed salary employment at this stage
Low-responsibility environments
Short-term opportunities

Why Join HolistiQ Technologies

Join the core leadership team
Shape security strategy from the ground up
Equity participation and profit sharing-60% among the team
Influence multiple products and future ventures
Work across marketplace, lifestyle, hospitality, technology, and future gaming sectors
Help build products that impact businesses, communities, and consumers
Create long-term value while helping scale a growing technology ecosystem

If you are the type of person who naturally questions how systems can be broken, enjoys solving complex technical challenges, and wants to help build secure products that make a real-world impact, we would love to hear from you.

Bring the mindset of a hacker, the discipline of an engineer, and the vision of an architect—and help us build the future with HolistiQ Technologies.

Pay: £54,940.34-£120,782.31 per year

Work Location: Remote

Quick apply

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