Senior Software Engineer

SEPTEO España y Portugal; Vigo; Presencial; EUR 40.000 - 70.000; Jornada completa

Descripción de la vacante

SEPTEO España y Portugal is seeking a Senior Backend Java Developer to enhance their SaaS platform. You will engage in shipping high-throughput services, owning the software development lifecycle, and mentoring team members while ensuring high-quality code and system scalability. The ideal candidate has over six years of experience with technologies like TypeScript, Kotlin, Java, and container orchestration in cloud environments.

Servicios

Remote-first culture with flexible schedules

Learning budget and career plan

International and diverse environment

Formación

• 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.

Responsabilidades

• Ship high-throughput services in Node.js / TypeScript, Kotlin or Java using Spring Boot or Micronaut.
• Own the SDLC use IaC (Terraform) to blue-green deployments and manage preview environments.
• Uphold clean-code & domain-driven design, mentoring peers through thoughtful PR reviews.

Conocimientos

TypeScript

Kotlin

Java

AWS

GCP

Kubernetes

MySQL

MongoDB

DynamoDB

Redis

Descripción del empleo

Are you passionate about backend development and excited to work on scalable solutions that directly impact the user experience? Do you enjoy being involved in the entire software lifecycle, from planning to deployment and monitoring? Then this position is for you!

At Septeo, a leading company in SaaS technology solutions, we are looking for a Senior Backend Java Developer with experience, initiative, and technical vision to drive the growth and evolution of our platform.

About Us :

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.

What you’ll do :

• 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

What you bring :

• 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

Why you’ll love it here :

• 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