Are you a Senior Software Engineer ready to pivot into Security and Identity?
Do you want to apply your software engineering expertise to real-world security challenges?
Would you like to build and own critical identity infrastructure used across a complex enterprise environment?
Are you ready to step into a role where software engineering comes first, and your development skills are the foundation?
If so, this is worth a conversation.
Senior Software Engineer →
💷 £225,000 – £250,000 Total Package
📍 London | Hybrid Working | Relocation & Sponsorship Available
Entasis Partners are working with a leading technology-driven organisation in London that is expanding its Security Engineering capability, with a strong focus on Identity and Access Management (IAM).
This role is designed for a Senior Software Engineer who wants to pivot into security engineering while remaining deeply technical. You will work within a high-performing engineering environment where identity, authentication, and access control systems are treated as mission-critical infrastructure.
You will play a key role in designing, building, and scaling secure identity platforms, working closely with engineering, infrastructure, and security teams to deliver resilient and automated solutions.
Why This Role Stands Out
* Security engineering first, not governance or policy
* Real engineering ownership of identity platforms
* Opportunity to pivot from software engineering into security
* High-impact work on critical infrastructure
* Strong technical culture with modern engineering practices
* Clear progression into Security Engineer / Security Architect pathways
This is a hands-on engineering role focused on building secure, scalable identity systems and integrating them into enterprise platforms.
Key Responsibilities
* Design and build secure identity and authentication services
* Develop and maintain identity platform functionality using Java or similar languages
* Engineer integrations across enterprise systems and cloud environments
* Implement and automate identity lifecycle processes (Joiner–Mover–Leaver)
* Build secure APIs and identity-related services
* Troubleshoot and optimise identity platform performance
* Support production systems and respond to security-related incidents
* Contribute to security architecture and engineering decisions
* Drive automation and reliability across identity infrastructure
* Collaborate with platform, DevOps, and security teams
Core Experience
* Strong software engineering background
* Experience building scalable backend systems
* Solid understanding of system design and architecture
* Experience working with APIs and integrations
* Strong debugging and problem-solving capability
* Comfortable working in production environments
Security / Identity Exposure (Helpful but Not Essential)
* Identity and Access Management (IAM)
* Authentication and authorisation systems
* Active Directory or LDAP
* Cloud platforms (AWS, Azure, or GCP)
* Secure system design principles
* Access control or identity workflows
You will work with Java, REST APIs, cloud platforms, Linux, CI/CD, and identity protocols (e.g. SailPoint).
So to Join a high-performance engineering environment building and securing enterprise identity and authentication systems please reach out to