Web Applications Built to Handle Real Threats
Secure Web Application Development Services
We design and build web applications with secure coding practices, proper authentication and data protection baked in from the start. Every feature is built with the question of how it could be abused in mind, not just whether it works.
- 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.
// Secure by Design
Security That Starts before the First Feature
Web applications are one of the most common attack targets, and most breaches trace back to gaps introduced early in development. We build your web app around secure architecture and coding standards from day one, so common flaws like injection, broken access control and insecure session handling never make it into production.
Every build follows the OWASP Application Security Verification Standard, and the personal data your application holds is designed around UK GDPR from the first schema onwards.
- Protection against OWASP Top 10 Risks
- Secure User Authentication and Session Management
- Encrypted Data Storage and Transmission
- Codebase Ready for Compliance Audits
// Coverage
What Our Web Development Service Includes
Custom Design and Build
Web applications designed and built around your product, not a template.
Secure Authentication
MFA, SSO and OAuth implemented properly rather than bolted on.
Database Design
Schema design with encryption at rest for the data that matters.
API and Third-Party Integration
Connections to external services built and secured deliberately.
Performance and Scalability
Optimisation and scaling planned before traffic arrives, not after.
Post-Launch Support
Ongoing patching and security updates once you are live.
// Methodology
How We Build Your Web Application
- 01
Threat Modelling
We map how the application could be abused before development begins.
- 02
Secure Design
Architecture and data flows designed around least privilege from the start.
- 03
Development
Secure coding standards enforced consistently across the team.
- 04
Review and Test
Regular code reviews and security testing throughout each sprint.
- 05
Launch and Support
A pre-launch security review, then ongoing patching after go-live.
// Ready when you are
Put your secure web application development services to the test.
// Impact
Why Secure Web Development Matters
One Flaw Can Expose Everything
A single vulnerability can expose customer data and damage trust for years.
// Our Development Approach
- Threat modelling before development begins
- Secure coding standards enforced across the team
- Regular code reviews throughout each sprint
What you get
// Technologies and Standards We Use
// Why Pluto Cyber Security
Developers Who Think like Penetration Testers
Our web development team works alongside certified penetration testers, so every feature gets built and tested with attacker behaviour in mind, not just functional requirements.
Secure Coding Standards
Every build follows OWASP ASVS and secure coding guidelines.
In-House Security Testing
No handing off to a third party, testing happens in-house throughout the build.
UK Compliance Ready
Built with UK GDPR and Data Protection Act requirements in mind.
Ongoing Support
We stay on after launch to patch, update and monitor your application.
Both. We build new web applications and take on existing ones that need rebuilding, extending or securing.
// Related services
Explore Related Services.
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Ready to Scope Your Secure Web Application Development Services?
Tell us what you need tested. We reply with honest guidance and a fixed-scope quote, usually within one business day.