IT

Application Security Engineer

PT
Jan 20, 2026
Full Time
Hybrid

Porto, PT, 4100-247

As a global leader in facilities services we connect people and places to make the world work better. Whether directly or indirectly, you’ll play a vital role in supporting our placemakers in delivering exceptional workplace experiences for our customers. Together, we make space for people and businesses to thrive.

 

Location: Porto (PT)

Language: English

 

Main purpose of the position
As a member of ISS Development Security team, you'll play a crucial role in driving improvements in overall security of ISS in-house applications, both internal and customer facing. You will have a chance to not only work with cutting-edge dev, cloud and security technologies, but also collaborate with technology experts in a growing, global IT organization

 

What you’ll do:

  • Embed security tools and DevSecOps practices in CI/CD pipelines and cloud environments.
  • Evaluate, implement and operate cyber security tools, act on their findings in close collaboration with engineering teams.
  • Run internal and facilitate external penetration tests of ISS applications.
  • Improve software development lifecycle processes across the company with “shift-left” mindset
    – making sure cybersecurity is not a blocker, but an enabler for high quality software.
  • Educate and consult engineering teams on application security topics, run Application Security Champions program.
  • Collaborate with other IT functions to enhance overall posture of ISS applications and related infrastructure.

 

Who you’ll work with:

  • Global engineering teams: Security, Dev, DevOps, Cloud Ops, Big Data & AI, IoT, architecture and more
  • Product Owners, Risk and Compliance

 

Key qualifications:

  • Practical experience with application security, programming, DevOps or automation.
  • Strong interest in security, knowledge of core concepts, vulnerability types, ways to exploit
    and mitigate them.
  • Solid understanding of modern technologies, especially public cloud services and development tools. AI, Kubernetes and Openshift experience considered a plus.

 

Personal skills you excel:

  • Effective communication skills in an international environment.
  • Ability to explain complex topics (like vulnerabilities) in a simple, understandable way.
  • Can-do attitude, drive to innovate and find best ways of implementing security improvements.

 

 

Why ISS

At ISS, we are more than just a service provider of cleaning, food, workplace and technical services, we are a partner in our customers’ success. By creating exceptional service moments and transforming workplaces into spaces where employees feel valued, engaged and productive, we enhance productivity and help our customers to attract talent and grow their businesses. This begins with our own people through training, career development, and a supportive culture – empowering them to deliver outstanding service. We know that when our people thrive, they create spaces where our customers’ employees and businesses thrive too.

 

ISS is a Place to Be You.

Be who you are. Become what you want. Be part of something bigger.

Become more. Become ISS.

 

How you’ll apply

Apply directly via the link on this page by submitting a cover letter, CV and other relevant documents for the position you are applying for.

We look forward to receiving your application as soon as possible.

 

ISS seeks to BE a place of belonging and CREATE places where every person is welcomed, embraced, and valued for exactly who they are. Places where people feel safe, respected, represented, and supported as their authentic selves.

#LI-Hybrid

Requisition ID:  40972

The Recruitment Process

1. Job search 2. Application 3. Screening 4. Interview(s) 5. Job offer
Browse the ISS Career Site and find your next job Click "Apply now" and follow the steps to complete your application Our Recruiting team reviews your application We get to know you better and answer any questions you may have Congratulations! We are excited to offer you a job and look forward to onboarding you soon

The Recruitment Process

1. Job search
Browse the ISS Career Site and find your next job
2. Application
Click "Apply now" and follow the steps to complete your application
3. Screening
Our Recruiting team reviews your application
4. Interview(s)
We get to know you better and answer any questions you may have
5. Job offer
Congratulations! We are excited to offer you a job and look forward to onboarding you soon

Why ISS

Since our founding in 1901, ISS has been a people-first company. We recognise the power of diversity, inclusion and belonging and celebrate the differences that make us unique. When everyone is free to be themselves, everyone benefits.

Our people feel safe, respected, represented, and supported as their authentic selves, allowing them to seize opportunities and reach their full potential. We take seriously our obligation to improve lives, make a difference in our communities, and protect our planet - because when we get things right, the world works better. And that is what drives us.

ISS is a Place to Be You.

Be who you are. Become what you want. Be part of something bigger.