Technical Application Service Specialist (TASS) – Mobile Security
📍 Bristol (Hybrid -2 days onsite) 💰 £500/day (Inside IR35) | 📅 6-Month Contract
Our client, a top global organization, is seeking a Technical Application Service Specialist (TASS) to support mobile application security services and ensure reliability, scalability, and operational excellence across production environments. This role sits within a mobile security engineering team, responsible for delivering a suite of security components and associated services that protect mobile applications and supporting platforms. You will act as a senior SME across service operations, incident management, and service engineering.
* Work on enterprise-scale mobile security services supporting critical applications
* Drive SRE and service engineering best practices across production systems
* Play a key role in service strategy, reliability, and automation initiatives
Key Responsibilities
* Act as SME for resolving complex service issues and escalations
* Take accountability for service availability, performance, and stability
* Lead incident recovery and minimise business impact
* Support 24/7 operational service requirements
* Apply automation and software engineering to improve reliability
* Balance feature releases with system stability
* Identify opportunities for service automation and transformation
* Improve scalability and production resilience
* Lead problem management reviews following major incidents
* Identify service gaps and implement operational improvements
* Contribute to service strategy and operational standards
* Monitor, troubleshoot, diagnose and resolve production issues
* Use scripts, tools and automation to investigate incidents
* Support multiple technology products and services
* Work across engineering, operations and security teams
* Provide training and coaching to team members
Essential Skills & Experience
* Strong experience in Technical Application Support / Service Engineering / SRE
* Experience supporting production-critical applications
* Strong incident management and problem management experience
* Experience with automation, scripting and operational tooling
* Knowledge of service reliability engineering (SRE) practices
* Experience troubleshooting complex distributed systems
* Strong stakeholder collaboration and communication skills
* Ability to lead escalations and major incident recovery
Desirable Skills
* Experience supporting mobile applications or mobile security platforms
* Exposure to DevOps / CI/CD environments
* Monitoring and observability tooling experience
* Experience working in financial services / regulated environments
* Knowledge of performance and availability optimisation
If this is relevant to your experience, please apply with your CV and we’ll be in touch.