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Senior Software Engineer
full-time•Barcelona
About this role
Company Description
We’re on a mission to make hotel operations effortless. Our cloud-native platform already powers thousands of
properties worldwide, and we’re doubling down on AI-driven automation to remove the busy-work from hospitality.
We’re a lean, product-obsessed team that values curiosity, data-driven decisions and shipping to production daily.
If you love turning complex problems into elegant, resilient systems, we’d love to meet you.
Job Description
• Ship high-throughput services in Node.js / TypeScript, Kotlin or Java using Spring Boot or Micronaut.
• Leverage AI tooling (e.g. GitHub Copilot, Cursor, Claude code) to accelerate development and share best practices with the team.
• Own the SDLC use IaC (Terraform) to blue-green deployments and manage preview environments
• Continuously profile and tune latency, cost and performance
• Design LLM-powered features and agents using LangChain or MCP-compliant frameworks, integrating retrieval, memory and tool-use patterns.
• Uphold clean-code & domain-driven design, mentoring peers through thoughtful PR reviews.
• Recognise and propose solutions for scaling weaknesses, performance bottlenecks and security risks.
Qualifications
● 6+ years building production software.
● Deep expertise in at least one of TypeScript, Kotlin or Java.
● Proven experience running containerised or serverless workloads in AWS, GCP or Kubernetes.
● Fluency with relational and NoSQL databases (MySQL, MongoDB, DynamoDB, Redis).
● Familiarity with working in a UNIX-based environment
● You communicate clearly in English and thrive on feedback loops.
● You care about outcomes, not just tickets.
Nice-to-have superpowers
● Experience with GitOps
● Full-stack chops with React / Next.js.
● Hands-on with AI coding assistants (Copilot, Cursor, Claude Code) or autonomous agent frameworks / tools (LangChain, CrewAI, Autogen, n8n).
● MLOps or data-engineering experience (Kubeflow, SageMaker, Feast).
● Passion for mentoring and tech-community talks.
Additional Information
● Remote-first culture with flexible schedules and core hours.
● Learning budget and career plan
● An international and diverse environment where you matter
● An amazing, agile, cross-functional team to work with
● Goal oriented work
● Flexible work hour
What you'll do
- The Senior Software Engineer will ship high-throughput services using various programming languages and frameworks while leveraging AI tooling to enhance development. They will also own the software development lifecycle and continuously optimize performance and security.
About Septeo
SSII spécialisée dans la conception d'un logiciel Informatique à destination des Huissiers de Justice.
N°2 du marché.
Soft Ouest et Data Automation proposent un ERP et l'ensemble des services associés de la vente de matériel à l'administration des réseaux informatiques.
Ready to join Septeo?
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Frequently Asked Questions
What does a Senior Software Engineer do at Septeo?
As a Senior Software Engineer at Septeo, you will: the Senior Software Engineer will ship high-throughput services using various programming languages and frameworks while leveraging AI tooling to enhance development. They will also own the software development lifecycle and continuously optimize performance and security..
Is the Senior Software Engineer position at Septeo remote?
The Senior Software Engineer position at Septeo is based in Barcelona, Catalonia, Spain. Contact the company through Clera for specific work arrangement details.
How do I apply for the Senior Software Engineer position at Septeo?
You can apply for the Senior Software Engineer position at Septeodirectly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process.