Hybrid Senior Technical Application Engineer

at Keylane

• Job title: Senior Technical Application Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: €4,000 - €5,900 per month
• Degree requirement: Bachelor's Degree
• Tech skills: Firewalls, Oracle, Python, SQL
• Location requirements: Hybrid, Utrecht, Netherlands

About the role

• Senior Technical Application Engineer managing platform incidents and security for SaaS solutions in the insurance sector. Coaching junior engineers and enhancing service delivery in a hybrid working environment.

Responsibilities

• Take ownership of complex incidents and problems on the Lifetime platform, acting as a technical escalation point for colleagues and stakeholders.
• Guard and improve platform uptime and resilience, implementing structural fixes and preventive measures for issues such as disk capacity problems, CPU bottlenecks and Tomcat outages.
• Design, plan and execute patching and upgrade cycles for the underlying technology stack (Windows Server, Oracle, SQL Server, Tomcat and related components), balancing risk, downtime and compliance requirements.
• Manage the full lifecycle of client and server certificates, including planning renewals, coordinating with customers and ensuring secure deployment across environments.
• Oversee webservice provisioning for customers on IIS, including whitelisting, network/security configurations and end-to-end technical validation.
• Drive capacity management and monitoring: tuning thresholds, improving dashboards and automating responses where possible.
• Play a key role in external audits, penetration tests and disaster recovery/failover tests: preparing evidence, leading technical execution, and following up on remediation actions.
• Contribute to the standardization and automation of TAM processes (runbooks, scripts, tooling) to ensure consistent, repeatable operations.
• Work closely with product development, SaaS platform teams and customer teams to align on changes, releases and longer-term roadmap items.
• Coach and mentor junior engineers, sharing your knowledge through documentation, pair troubleshooting and knowledge sessions.

Requirements

• You have at least a completed HBO Beta or academic degree in an IT-related field.
• You have 5+ years of experience in technical application management, infrastructure engineering or a similar role managing business-critical applications.
• You have strong hands-on experience with Windows Server and enterprise databases (Oracle and/or SQL Server), including performance and troubleshooting.
• You are proficient with application and web servers such as Tomcat and IIS, and understand how they interact with networks, security components and the application layer.
• You have practical experience with security hardening, patching and vulnerability management, especially in regulated or audited environments.
• You are familiar with certificates (PKI), networking and firewalls, and know how to work with concepts like whitelisting, proxies and load balancers.
• You can script and automate (for example with PowerShell, Bash or Python) and are comfortable working with monitoring and deployment tools.
• Experience in the financial services or pension/insurance domain is a strong plus.
• You are analytical, structured and pragmatic, able to quickly understand complex situations and define clear next steps.
• You are a communicative team player: you work closely with colleagues and stakeholders, and can translate technical issues into business impact.
• You are willing to work outside regular office hours and to participate in the standby/on-call rota.
• A Certificate of Conduct (VOG) and reference check are part of the application process. All employees follow information security training and have basic information security responsibilities.

Benefits

• A monthly gross salary between € 4.000 and € 5.900 based on 40 hours per week.
• 8% holiday allowance of your total gross salary.
• A profit share.
• A pension scheme, with the option to save extra.
• Travel reimbursement: Receive a mileage allowance of €0.23 per km or an NS Business Card, which can also be used for personal travel.
• 24 holiday days (with the option to buy extra) and 7 inclusion days, which can be exchanged with fixed Dutch national holidays, allowing you to take them when you like.
• Flexibility in working environment. As part of a hybrid working team, you will work partly from home and partly from the office. If you work in the office, a free lunch is waiting for you every day. If you work from home, you will receive a working from home allowance (€ 4 net per day) and internet allowance (€ 35 net per month).
• The possibility of working remotely from abroad for up to 2 months per year.
• The possibility to lease a bike through our bike leasing program.
• A one-year contract that, subject to satisfactory performance, will be converted into a permanent contract.
• The opportunity to develop yourself at our Academy through courses and training, both professionally and personally. · A comprehensive vitality offers to help you stay healthy. Read more here