Secure Application Development, Built In from the Start
Secure Application Development Services
We design and build applications with security woven into every stage of development. From the first line of code to production deployment, our team combines software engineering with real penetration testing experience to help UK businesses ship applications that hold up against real-world threats.
- Certified Experts
- OSCP, CEH, CRTP & industry-certified testers.
- Real-World Approach
- Manual testing with real-world attack techniques.
- Actionable Reporting
- Detailed findings with clear risk ratings and remediation.
- Confidential & Secure
- Strict NDA, data protection & privacy practices.
// About Our Approach
Development and Security under One Roof
Most development teams bolt security on at the end, once the application is already built. We do it differently. Our engineers and security testers work side by side throughout the project, so vulnerabilities get caught while they are still cheap and easy to fix.
The result is software that performs well and stands up to scrutiny from auditors, customers and attackers alike, with the UK GDPR obligations around personal data designed in rather than retrofitted.
- Fewer Vulnerabilities Reaching Production
- Faster, Smoother Compliance Audits
- Applications Built to OWASP and Industry Standards
- One Team Accountable for Code Quality and Security
Our Secure Application Development Services
Whatever you are building, we bring security expertise into the process from day one.
Secure Web Application Development
Web apps built to OWASP ASVS from day one.
Learn moreSecure Mobile App Development
iOS and Android built to OWASP MASVS.
Learn moreAPI Development
REST and GraphQL APIs with auth built in.
Learn moreDevSecOps Integration
Security gates wired into your CI/CD.
Learn moreSecure Code Reviews
Manual review that catches what scanners miss.
Learn moreContinuous Security Testing
Testing every sprint, not just before launch.
Learn more// Coverage
What We Help With
Secure Web Application Development
Web apps built to resist the OWASP Top 10 from the start.
Secure Mobile App Development
iOS and Android apps built with security baked in.
API Development
APIs designed and built against the OWASP API Top 10.
DevSecOps Integration
Security testing wired into your CI/CD pipeline.
Secure Code Reviews
Line-by-line review of the code you depend on most.
Continuous Security Testing
Testing at every stage of development, not just the end.
// Methodology
How We Work with You
- 01
Discovery and Scoping
We learn about your product, users and existing systems before writing a single line of code.
- 02
Secure Design
Threat modelling and architecture review to build security into the foundations.
- 03
Development and Testing
Our developers and security testers work in parallel, sprint by sprint.
- 04
Review and Hardening
Code reviews, penetration testing and remediation before launch.
- 05
Support and Maintenance
Ongoing monitoring, patching and updates after go-live.
// Ready when you are
Put your secure application development services to the test.
// Impact
Why It Matters
Lower Remediation Cost
Fixing early is far cheaper than fixing after release.
// How We Approach Secure Development
- Threat modelling in the design phase
- Secure coding standards and developer training
- Automated security testing in CI/CD
- Pre-release security gate reviews
- Post-release feedback loops
What you get
// Some of What We Use
// Why Pluto Cyber Security
Development Teams Rarely Think like Attackers. We Do.
We sit at the intersection of software development and offensive security. Our team includes certified penetration testers as well as experienced developers, so your application gets built and battle-tested by people who understand both sides.
Certified Experts
OSCP, CISSP and GIAC certified professionals on every engagement.
UK Compliance Knowledge
Built around UK GDPR, the Data Protection Act 2018 and Cyber Essentials expectations.
Security-First Development
Security reviewed at every sprint, not just at the end.
Clear Reporting
Plain English reports auditors and stakeholders can actually use.
It means building security checks, threat modelling and testing into every stage of development, rather than testing the finished product once and hoping for the best.
// Related services
Explore Related Services.
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Ready to Scope Your Secure Application Development Services?
Tell us what you need tested. We reply with honest guidance and a fixed-scope quote, usually within one business day.