Senior Technical Application Engineer - LeanApps

Keylane; Utrecht; Hybrid; EUR 47,000 - 56,000; Full time

Benefits offered by this job

Profit share

Pension scheme

8% holiday allowance

Travel reimbursement

Hybrid working

Lunch in office

Home office allowance

Bike leasing

Academy courses & training

Vitality offers

Job summary

Keylane is a leading European SaaS provider for insurance and pension, seeking a Senior Technical Application Engineer for LeanApps TAM. You will own complex incidents, improve uptime, plan patches, and manage certificates across WebLogic, Oracle DB, and Linux in a hybrid setup.

You will collaborate with product teams, undergo audits, and mentor juniors while balancing security and operational risk. A 1-year contract with potential permanent conversion is offered.

Qualifications

• Completed HBO Beta or IT-related degree.
• 5+ years in technical application management or infra engineering.
• Strong hands-on Oracle Database experience with performance and ops.
• Proficient with Oracle WebLogic and its integration with Linux/Java.
• Experience with Red Hat Enterprise Linux 8/9, patching and security.
• Familiar with PKI certificates, networking, firewalls and whitelisting.
• Skilled in shell scripting and Python for automation.
• Ansible or Puppet experience is a strong plus.
• Banking/insurance domain experience is valuable.
• Analytical, structured, and able to communicate with stakeholders.
• Willing to work outside office hours and on-call.

Responsibilities

• Take ownership of complex incidents on LeanApps for multiple customers.
• Improve uptime and resilience with fixes and preventive measures.
• Design and execute patching/upgrades for WebLogic, DB, Linux, Java.
• Manage certificate lifecycles and secure deployments.
• Oversee WebLogic provisioning, deployments, and security configs.
• Drive capacity management and monitoring across components.
• Participate in audits, pen tests, and DR/failover exercises.
• Contribute to TAM process automation and runbooks.
• Collaborate with product, SaaS teams, and customers.
• Mentor junior engineers and share knowledge.

Skills

Oracle Database

Oracle WebLogic

Red Hat Enterprise Linux

Python

Shell scripting

Automation

Networking & security concepts

Education

HBO/IT-related degree

Tools

Ansible

Puppet

Java applications understanding

Job description

Keylane is a leading European supplier of modern SaaS platforms for the insurance and pension industry. We enable our clients to innovate, remain competitive and deliver excellent services to their customers by running their core processes on our cloud platforms.

LeanApps is a Keylane application used in the Life & Pension domain and delivered as part of a secure SaaS landscape. It relies on a robust enterprise technology stack, including Oracle WebLogic as the web application server, Oracle Database, Red Hat Enterprise Linux, Java and automated operations tooling.

As a Senior Technical Application Engineer in the LeanApps TAM team, you are one of the key experts responsible for the stability, security and performance of the LeanApps application for multiple Life & Pension customers.

In this senior role you:

• Take ownership of complex incidents and problems on the LeanApps application, acting as a technical escalation point for colleagues and stakeholders.
• Guard and improve application uptime and resilience, implementing structural fixes and preventive measures for issues such as disk capacity problems, CPU bottlenecks, WebLogic availability issues and database performance bottlenecks.
• Design, plan and execute patching and upgrade cycles for the underlying technology stack, including Oracle WebLogic, Oracle Database, Red Hat Enterprise Linux 8/9, Java 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 web application and integration provisioning on WebLogic, including network/security configurations, whitelisting, deployments and end-to-end technical validation.
• Drive capacity management and monitoring: tuning thresholds, improving dashboards and automating responses where possible across Linux, WebLogic, Java and Oracle components.
• 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, including runbooks, shell scripts, Python tooling and configuration management with Ansible or Puppet where applicable.
• Work closely with product development, SaaS platform teams, database specialists 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.
• You are comfortable making decisions in complex situations, keeping the overview under pressure and balancing customer expectations, security and operational risk.

Key about your team

You will work in the LeanApps TAM team, part of Keylane SaaS organization:

• We deliver best-in-class SaaS services from a secure, ISO-certified private cloud, ensuring our customers can focus on their core business while we manage the technical application platform.
• The team consists of highly skilled IT professionals with strong expertise in Linux, databases, middleware, automation and security, combined with knowledge of the Life & Pension domain.
• We work with standardized processes for migrations, implementations, patching, releases and operations, and continuously refine our way of working based on experience and feedback.
• LeanApps is an important application within Keylane; the growing operational scope makes this team increasingly important and offers room for you to influence technology choices, automation and process improvements.
• We value openness, collaboration and ownership: everyone is encouraged to contribute ideas and take initiative.

You recognize yourself in the following profile:

• 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 Oracle Database, including performance analysis, troubleshooting, connectivity and operational support.
• You are proficient with Oracle WebLogic as a web application server and understand how it interacts with Java applications, Linux, networks, security components and the application layer.
• You have practical experience with Red Hat Enterprise Linux 8 or 9, 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 with shell scripting and Python, and you are comfortable working with monitoring and deployment tools.
• Experience with Ansible or Puppet is a strong plus; experience in the financial services or pension/insurance domain is also valuable.
• You are analytical, structured and pragmatic, able to quickly understand complex situations and define clear next steps.
• You are 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.

For the senior role you can expect the same benefits as described above, including:

• A monthly gross salary between € 4.250 and € 5.000 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.