Senior Software Engineer

Want to know how a leading workplace experience and facility management company is powered by technology?

At ISS Tech Team, we create smarter workplace experiences through technology. Our Global Technology Solutions team builds digital solutions, from sensors and IoT devices to data, analytics and AI-driven capabilities, that support our ISS A/S operations across Cleaning, Workplace, Food and Technical Services.

With tech hubs in Copenhagen, Warsaw, and Porto, and teams collaborating across more than 30 countries, our ISS Tech team develops our digital solutions that have a real impact on both our customers and our people.

Location: Warsaw, Poland

Work regime: Hybrid

Job Role as Senior Software Engineer:

We’re looking for experienced Senior Software Engineer to join the ISS Software Development team and help shape the future of digital products.

In this role, you'll do more than write code, you'll own solutions that operate at enterprise scale, collaborate directly with business stakeholders, and influence products used by hundreds of thousands of people. You'll work with modern cloud platforms, AI-powered technologies, and the latest engineering practices while taking an active role in Agile ceremonies and cross-functional decision-making.

We're looking for someone who understands how to bridge business needs with technical excellence. You know how to design scalable, well-governed enterprise solutions, lead technical discussions, challenge ideas constructively, and work confidently with Scrum teams to deliver meaningful outcomes.

Joining our Facility Management domain means solving complex, real challenges that have a tangible impact on workplaces and everyday experiences for hundreds of thousands of users. If you're driven by ownership, innovation, and building technology that matters, we'd like to hear from you.

What you’ll do:

Drive engineering excellence

• Be an active contributor to the Scrum team by continuously improving collaboration, team effectiveness, and delivery quality.


• Take ownership of engineering outcomes, ensuring discussions result in clear decisions, actions, and measurable business value.


• Champion engineering best practices, modern ways of working, and continuous improvement across the team.


• Collaborate with Product Owners, Business Analysts, and stakeholders to refine requirements, translate business needs into technical solutions, and provide reliable estimates.


• Provide technical guidance that helps shape the product roadmap, backlog, and solution architecture.

Build the next generation of AI-powered solutions

• Leverage AI throughout the Software Development Lifecycle to design, build, test, and deliver software more efficiently.


• Explore emerging AI technologies, participate in industry events, and bring practical, high-value innovations back into the organization.


• Engineer modern cloud-native solutions


• Design and develop enterprise-grade backend services using the latest Java ecosystem and Spring Framework.


• Build scalable, cloud-native applications running on Microsoft Azure and Kubernetes.


• Deliver modern frontend experiences using React.


• Automate software delivery through Azure DevOps and Azure Pipelines.

Deliver quality at scale

• Take ownership of code quality through peer reviews, pull requests, and continuous improvements to engineering standards and quality gates.


• Build and maintain automated testing using Playwright for end-to-end, smoke, component, and performance testing, while ensuring unit testing remains an integral part of development.


• Validate solutions through manual verification where appropriate to ensure production-ready releases.


• Focus on performance, scalability, maintainability, and predictable delivery while continuously improving estimation accuracy and engineering efficiency.

Influence the direction, and values

• Bridge business objectives with technical execution, ensuring every solution delivers measurable value.


• Develop deep domain expertise in Facility Management, Workplace Experience, Workforce Management, and Placemaking.


• Contribute to ISS's digital, cloud, and AI transformation by helping shape enterprise solutions that support the future of the business.

Key qualifications:

• Strong technical leadership.


• Excellent verbal and written communication skills.


• Deep understanding of modern technologies and AI.


• Proactive, results-oriented mindset with a strong commitment to delivery.

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.

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.