PKI Senior Engineer

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: Warsaw (hybrid model) or fully remote within Poland

Language: English

Main purpose of the position:

As a PKI Senior Engineer, you will play a key role in shaping and enhancing our PKI and CLM (Certificate Lifecycle Management) systems. Your expertise will ensure secure, efficient, and user-friendly authentication processes, safeguarding our digital assets and improving user experiences. The engineer will work with the PKI/CLM suite of products and processes to define and standardize a global PKI service, perform cross-project analyses, and coordinate activities with vendors, technicians, and stakeholders.

What you’ll do:

• PKI (Public Key Infrastructure): Design, implement, and maintain PKI services in ISS either public (e.g. DigiCert) or private (Microsoft PKI) got various use cases

• CLM (Certificate Lifecycle Management): Design, implement, and maintain CLM solution to automate managed digital certificates

• System Integration: Support and assist in integration of CLM with  various applications and services, ensuring automation of digital certificate lifecycle.

• Project Management: Lead and participate in CLM/PKI-related projects and integrations, ensuring timely delivery, quality, and alignment with business goals.

• Stakeholder Collaboration: Work closely with cross-functional teams, including IT, security, and business units, to understand requirements and deliver effective CLM solutions.

• Troubleshooting and Support: Provide expert support for PKI/CLM-related issues, troubleshoot problems, and implement solutions to maintain system integrity and performance.

• Compliance and Best Practices: Ensure CLM solutions comply with industry standards, regulations, and best practices. Actively monitor certificates usage, deployment and automation, eliminate legacy or obsolete

Who you’ll work with:

• Security Engineering - partners on PKI standards, crypto policies, certificate governance, and security controls across the enterprise.

• Infrastructure Operations - collaborates on load balancers, servers, network devices, and platform integrations that depend on certificates.

• Application Teams - supports developers and service owners with certificate issuance, renewal, deployment, and troubleshooting.

• Cloud and DevOps Teams - works closely on automated certificate workflows, CI/CD integration, and cloud‑native service identity.

• External Certificate Authorities - coordinates validation, issuance, and compliance with commercial and internal CA providers.

Key qualifications:

• Minimum of 3 years of experience in PKI and CLM with a strong background in managing digital certificates

• Proficiency in PKI technologies (public PKI, private PKI),  certificates types (e.g., SSL, Signature, Encryption…) and platforms (e.g., DigiCert, Let’s Encrypt, Microsoft PKI,…)

• Hands-on experience on provisioning workflows, triggers, rules and customizing the tool as per the requirements.

Personal skills you excel:

• Analytical Thinking: Strong problem-solving skills with the ability to analyze complex systems and identify effective solutions.

• Communication Skills: Excellent verbal and written communication skills, with the ability to convey technical information to non-technical stakeholders.

• Team Player: Ability to work collaboratively in a team environment and build effective working relationships with colleagues and stakeholders.

• Adaptability: Flexible and adaptable to changing priorities and technologies in a fast-paced environment.

• Attention to Detail: Meticulous attention to detail, ensuring high-quality and accurate deliverables.

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. if you have questions about the position.

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.