Job Description

Spin.AI is a global SaaS cybersecurity company that protects mission-critical data across Google Workspace, Microsoft 365, Salesforce, Slack & more. Our product — SpinOne — is a platform that combines SSPM, ransomware protection, DLP, backup & recovery for enterprise customers worldwide.

We are looking for a Backend Developer with strong Java and Spring Boot experience to join our engineering team.

You will work on backend services for a complex cybersecurity SaaS product, including integrations, data processing, asynchronous workflows, access control, permissions, audit logs, backup and recovery flows.

This role is based in our Lisbon office in a hybrid format. If you are not currently in Portugal, we are open to remote work during the trial period, with relocation to Lisbon afterward.

🛠 Tech Stack

• Java 19
• Spring Boot
• MyBatis
• PostgreSQL
• RabbitMQ
• REST APIs
• Git / Bitbucket
• Jira / Confluence
• CI/CD pipelines

🧰 Responsibilities

• Develop and maintain backend services using Java and Spring Boot.
• Work with PostgreSQL: write SQL queries, analyze execution plans, optimize performance, and work with indexes.
• Use MyBatis for database interaction.
• Build and maintain integrations with internal and external APIs.
• Work with RabbitMQ and asynchronous backend workflows.
• Participate in technical discussions, code reviews, and feature planning.
• Collaborate with frontend, QA, DevOps, and Product teams.
• Debug issues, analyze logs, and improve backend performance and reliability.
• Write clean, maintainable, and well-structured code.

📌 Must-have Requirements

• 4+ years of commercial backend development experience.
• Strong experience with Java and Spring Boot.
• Experience with Java 19.
• Experience with MyBatis.
• Strong knowledge of PostgreSQL.
• Confident SQL skills.
• Experience analyzing and optimizing query execution plans.
• Understanding of indexes and database performance basics.
• Experience with RabbitMQ or similar message brokers.
• Experience with REST API development and integration.
• Ability to work with complex product logic and enterprise-level workflows.
• Good communication skills and ownership mindset.
• English: Intermediate+.

Nice-to-have

• Experience with Elasticsearch.
• Experience with AWS S3, Google Cloud Storage, or Azure Blob Storage.
• Experience with Salesforce API.
• Experience with Microsoft Graph API.
• Experience with Google API.
• Experience with Slack API.
• Experience with cybersecurity, SaaS, or enterprise products.
• Experience with Claude AI or other AI tools for development productivity.

🌍 Why Spin.AI

Work in a fast-moving, high-impact cybersecurity company recognized by Gartner, Forrester, and G2.

Work on a real product with real users and visible business impact

Work on an interesting and large-scale product

Solve complex, non-trivial security and engineering challenges

Opportunity to influence technical and product decisions

Trust from management and autonomy in day-to-day work

Strong, professional team with deep expertise

🎁 What we offer

Annual performance-based salary review

Annual performance-based bonus

Referral bonuses

Educational budget

Sport & hobby compensation

Medical insurance compensation

Company presents (birthdays, anniversaries, weddings, etc.)

Corporate travel parties twice a year