At a Glance
- Tasks: Design secure code components and mentor teams on security best practices.
- Company: PhysicsX, a deep-tech company revolutionising engineering with AI-driven simulation software.
- Benefits: Equity options, 25 days leave, free lunches, and comprehensive health coverage.
- Other info: Flat structure encouraging innovation and collaboration in a hybrid work environment.
- Why this job: Join a mission-driven team tackling real-world challenges in advanced industries.
- Qualifications: 8+ years in development with strong security focus and hands-on coding experience.
The predicted salary is between 70000 - 90000 £ per year.
About us
PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.
The Role
We are recruiting for a Senior Software Security Developer within our Core Platform Services Team. You will be responsible primarily for writing secure code components that many teams will use across the business. There is a strong emphasis on authentication for this role.
What you will do
- Design and implement platform security features and guardrails.
- Act as an SME for security for the Core Services development team, including mentoring, performing threat modeling, and security code reviews.
- Help shape incident response procedures and vulnerability management workflows.
- Support the response team by validating and remediating product security vulnerabilities.
- Contribute to secure coding standards and provide training/mentorship to developers.
What you bring to the table
- 8+ years in a developer role focused with strong focus on designing and building security features.
- Extensive RBAC/ABAC knowledge and implementation experience.
- Experience with user, agent, and machine authentication workflows.
- Hands-on experience with secure coding, OWASP Top 10, and threat modeling.
- Strong developer skills and extensive experience shipping code to production.
- Experienced in CI/CD, IaC, Python, and Go.
- Track record of balancing pragmatism and security rigor in a fast-paced team.
- Thorough knowledge of authentication and authorization protocols (e.g., OAuth, OpenID Connect, SAML, LDAP, etc.).
- Strong communication skills, comfortable working across development teams and managing multiple initiatives.
Nice to Have Skills
- Strong understanding of AI security fundamentals.
- Participation in bug bounty programs.
- Familiarity with the BSIMM framework.
- Experience in cloud security including identity and access management and cloud-native services.
What we offer
- Build what actually matters: Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and society.
- Learn alongside exceptional people: Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and about helping each other get better.
- Influence over hierarchy: We operate with a flat structure; good ideas win - wherever they come from.
- Sustainable pace, long-term ambition: Building meaningful technology is a marathon, not a sprint.
- Equity options: Share meaningfully in the company you’re helping to build.
- 10% employer pension contribution.
- Free office lunches.
- Enhanced parental leave: 3 months full pay paternity and 6 months full pay maternity leave.
- YellowNest nursery scheme.
- 25 days of Annual Leave (+ Public Holidays).
- Private medical insurance: 100% employee cover.
- Wellhub Subscription: Access to thousands of gyms, classes, and wellness apps.
- Eye tests.
- Personal development: Dedicated support for learning, development, and leveling up over time.
- Employee Assistance Programme (EAP): Confidential wellbeing support.
- Bike2Work scheme and Season ticket loan.
- Octopus EV salary sacrifice.
We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality, disability, age, sexual orientation or gender identity. We strongly encourage individuals from groups traditionally underrepresented in tech to apply.
Senior Software Security Developer – Core Platform Services employer: Physicsx
PhysicsX is an exceptional employer that fosters a collaborative and innovative work culture, where your contributions directly impact the future of engineering and manufacturing. With a strong emphasis on employee growth, we offer extensive development opportunities, equity options, and a generous benefits package including enhanced parental leave and private medical insurance. Our hybrid working model in the vibrant Shoreditch area allows for a sustainable work-life balance while being part of a diverse team committed to tackling real-world challenges.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Security Developer – Core Platform Services
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, especially those at PhysicsX. A friendly chat can open doors that a CV just can't.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio or GitHub with secure coding projects, flaunt it. It’s a great way to demonstrate your expertise beyond the written application.
✨Tip Number 3
Prepare for the interview by brushing up on your knowledge of authentication protocols and secure coding practices. Be ready to discuss how you’ve tackled security challenges in past roles.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets the attention it deserves. Plus, we love seeing candidates who take that extra step.
We think you need these skills to ace Senior Software Security Developer – Core Platform Services
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter for the Senior Software Security Developer role. Highlight your experience with secure coding, authentication workflows, and any relevant projects that showcase your skills in security features.
Showcase Your Experience:We want to see your hands-on experience! Include specific examples of how you've implemented RBAC/ABAC or contributed to secure coding standards. This will help us understand your practical knowledge and how you can contribute to our team.
Be Clear and Concise:When writing your application, keep it clear and to the point. Use bullet points where possible to make it easy for us to read through your qualifications and experiences. We appreciate straightforward communication!
Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at PhysicsX!
How to prepare for a job interview at Physicsx
✨Know Your Security Fundamentals
Make sure you brush up on your knowledge of secure coding practices, especially the OWASP Top 10. Be ready to discuss how you've implemented security features in past projects and how you approach threat modelling.
✨Showcase Your Technical Skills
Prepare to demonstrate your hands-on experience with languages like Python and Go, as well as your familiarity with CI/CD processes. Bring examples of code you've shipped to production that highlight your ability to balance security and pragmatism.
✨Understand Authentication Protocols
Familiarise yourself with various authentication and authorisation protocols such as OAuth, OpenID Connect, and SAML. Be prepared to explain how you've used these in previous roles and how they can be applied to the position at PhysicsX.
✨Communicate Effectively
Since this role involves mentoring and working across teams, practice articulating your thoughts clearly. Think about how you can convey complex security concepts in a way that's easy for others to understand, showcasing your strong communication skills.
