Senior Backend Engineer - AI Platform & LLMs (Remote)

Keelvar has an exciting opportunity to join our Engineering & Product Team as a Senior Backend Software Engineer. This role is remotely based in either Ireland or Germany.

Reporting to one of our Engineering Managers, you will be part of a critical group responsible for supporting and building new and existing features with a cross functional team. The successful candidate will join a group of engineers from different backgrounds including Software Dev, Data Science, UI and Product design.

Responsibilities

• Work in a cross functional development team analysing product feature requests and designing solutions.
• Build and maintain backend services with a strong focus on performance, maintainability, and production-readiness.
• Integrate AI capabilities into our products by deploying LLM services, orchestrating ML pipelines, and supporting end-to-end model lifecycle in production.
• Take a hands-on approach to shipping high-quality code incrementally — we value learning through iteration over aiming for perfection upfront.
• Participate in code reviews and architecture discussions to ensure technical excellence and knowledge sharing.
• Work closely with the Product team to shape features that are valuable, feasible, and grounded in users needs.
• Collaborate with colleagues across the organisation to ensure vision is delivered.
• Assist and mentor junior team members.

Your Profile

• Strong proficiency and at least 5 years of experience in software development, ideally developing SaaS solutions.
• Experience in Python and its ecosystem, especially in the context of backend development and ML systems.
• Experience of working with CI/CD processes and in an agile, product led environment.
• Experience designing distributed services which can communicate in a fault-tolerant manner using both RESTful and event-driven APIs.
• Proven experience integrating LLMs into production services (e.g. OpenAI, Anthropic, Hugging Face, or custom fine-tuned models).
• Comfortable with DevOps practices, cloud environments (ideally AWS), and monitoring tools, you own your code in production.
• Product mindset: you think in terms of value to users, not just technical challenges, and you're willing to experiment to find what works.
• You are a deep thinker, you like to innovate, you like to solve problems creatively and quickly, and are passionate about technology and people.
• You thrive in an environment of mutual respect, openness and collaboration. You enjoy getting things done at a quick pace.

About us

Here at Keelvar, we are proud to be a remote-first organisation and we offer some great perks.

• Competitive salary with a Series B backed, fast growing organisation
• 25 days holidays increasing to 26 after 3 years and increasing again to 27 after 5 years. Plus your birthday off on us
• Health insurance for you and your family
• Company sick pay scheme
• Flexible working hours with a positive approach to work - life balance
• An inclusive, collaborative, innovative culture
• Generous leave offerings including Wellbeing days
• Technology that enables you to perform to your best

If you really like the sound of the role but don't match every listed criteria exactly, we still want to hear from you. You could be the exact fit for this or any of our other roles.

We are a diverse group and we intend to continue to attract and retain diverse talent in our organisation. We're committed to an inclusive and diverse Keelvar. We do not discriminate based on gender, ethnicity, sexual orientation, religion, civil or family status, age, disability, or race.