LumApps is now more than just an Employee Experience Platform — it is an AI-powered Employee Hub that supports companies in their digital transformation of communication, collaboration, and engagement with their customers, partners, and above all their employees.

Our platform is a proven leader in this dynamic market with a truly unique vision and product. It has been deployed by Fortune 500 clients around the world and is delivering meaningful business benefits. LumApps is identified as a leader in Gartner's Magic Quadrant for Intranet Packaged Solutions as well as in Intranets Forrester Wave, and regularly selected for the French Tech Next40/120 program.

✨ In 2025, LumApps strengthened its leadership position by partnering with Beekeeper, a pioneer in frontline employee experience solutions. This strategic collaboration expands our reach and impact across all types of workers — from HQ to the frontline.

Our mission: To make people feel that they belong and have a purpose.

To create an environment where all employees are engaged and work together towards the same goal. Over 700 leading companies trust our solution to:

🎯 Improve the productivity of their teams with our AI-powered Collaborative Experience Platform integrated with both Google and Microsoft collaborative suites,

🎯 Transform employees into real ambassadors of their company,

🎯 Make employees more efficient and better connected to their peers and relevant information, regardless of their location, with the tools and information they need at their fingertips,

🎯 Help companies reduce turnover, accelerate employee onboarding, better collaborate and share knowledge, and even improve their customer experiences.

With a team of over 600 Lumies spread across 11 offices (Lyon, Paris, Lille, Sophia Antipolis, London, Barcelona, Hamburg, Austin, Tokyo, Zurich, Krakow), we support large enterprises all around the world. Over the past year, we have been driving an ambitious phase in our journey under the impulse of our new shareholder Bridgepoint, aimed at propelling us to become the clear leader in our market and shine worldwide in our industry. We are looking for individuals who are excited to actively participate in this transformation.

If these core values sound like you: "be bold, do amazing things", "say what you mean, do what you say", "one team, same mission", "always be evolving": apply now!

*The role*

We are looking for a Senior Backend Software Engineer to design and build scalable backend systems that power critical parts of our platform.

In this role, you will help shape the technical direction of backend systems within the tribe, drive complex initiatives across teams, and ensure our architecture remains scalable, maintainable, and secure as the platform grows.

You will take ownership of systems throughout their lifecycle — from design and development to deployment and operations — while mentoring engineers and contributing to engineering standards across the tribe.

*Team* 

You will join the People & Growth Tribe, whose mission is: “Give employees easy access to everything they need to get ready for and get better at work. ”

The tribe focuses on building solutions that help employees grow, stay engaged, and easily interact with HR processes. This includes areas such as:

• Learning & development — helping employees find and complete the training they need workflows referrals

• HR processes — onboarding, offboarding, PTO, shift management, and other employee

• Engagement & recognition — pulse surveys, badges, appreciation, and employee

Within the tribe, your team focuses primarily on HR workflows and employee onboarding experiences, including:

• Employee surveys and feedback systems

• The “My Portal” dashboard, giving employees a central place to access HR tools and processes

• Onboarding experiences that help employees get productive quickly

• AI-powered solutions that assist employees during onboarding and everyday HR interactions

*What you will do*

• Design, build, and maintain scalable backend services

• Help shape the architecture and technical direction of backend systems within the tribe

• Drive technical initiatives that span multiple teams

• Write clean, maintainable, and well-tested code

• Deploy, monitor, and optimize services in production

• Collaborate with product managers, designers, QA, and engineers to deliver impactful features

• Mentor engineers and promote strong engineering practices

• Identify and address technical debt and foundational improvements

• Help maintain reliable and secure systems, including participation in on-call rotations

*Skills*

Backend engineering experience

• Strong experience with Java or Python

• Experience building microservices and distributed systems

• Experience designing and building REST APIs

• Experience with relational databases such as PostgreSQL or MySQL

Cloud-native systems

• Experience with Docker and Kubernetes

• Experience building systems in AWS, GCP, or Azure

Architecture & technical leadership

• Ability to design scalable and maintainable systems

• Experience driving technical decisions across teams

• Strong system-level thinking and ability to evaluate architectural trade-offs

• Experience mentoring engineers and guiding design discussions

Engineering mindset

• Strong ownership and attention to detail

• Commitment to code quality, testing, and maintainability

• Pragmatic problem solver focused on delivering value

• Strong communication skills in English

Nice to Have ✨

• Event-driven architectures (Kafka, RabbitMQ)

• Data streaming or processing systems (Debezium, ClickHouse)

• Authentication and authorization (SAML, OAuth2, OIDC)

• Observability tools (Prometheus, Grafana, Datadog, ELK)

• Experience building large-scale SaaS platforms

• Exposure to AI or LLM integrations

Our Tech Environment

• Backend: Java, Python

• Frameworks: Quarkus, Flask

• Architecture: Microservices, event-driven systems

• Databases: PostgreSQL, MySQL, Redis, ClickHouse

• Messaging: Kafka, RabbitMQ

• Infrastructure: Docker, Kubernetes

• Cloud: AWS, GCP, Azure
  

💡 Why You’ll Love Working at LumApps

We’re proud to offer a work environment where people feel supported, valued, and empowered. Here’s a peek at what we offer if you are based in Poland :

📱 Phone & Home Internet costs reimbursement up to 80 PLN/month

🛡️ Private health care package with Luxmed – covered for you and partially for your partner / family

🧘‍♀️ Cafeteria benefits – monthly budget to cover sport cards or other purchases

💰 Creative Allowance – paid as 1000 PLN gross/month

💻 Home office set-up reimbursement up to 1000 PLN

🎉 26 days of annual leave/year and 2 Mental Health days off per year

Benefits listed above are part of the compensation package for contract of employment.

We aim to celebrate diversity and are committed to creating an inclusive environment for all employees. We encourage applications from candidates of all backgrounds, identities, and experiences.