Senior Back-End Engineer

Lansweeper

full-time

Posted on: 9/16/2025

Origin: • 🇪🇸 Spain

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Senior

CloudGoJavaScriptKafkaKubernetesMongoDBNode.jsPostgresRust

About the role

Design, build, and maintain robust, scalable, and secure server-side applications
Collaborate closely with front-end developers, DevOps engineers, and product stakeholders to implement efficient APIs and business logic
Write clean, maintainable, and well-tested code; optimize application performance
Manage the full lifecycle of new epics, from technical design to customer delivery
Design and implement scalable, high-performance backend features
Write and maintain clear technical documentation and architecture decisions
Analyze and troubleshoot system performance issues
Ship production updates daily with minimal risk
Provide technical leadership and support across engineering teams
Conduct code reviews to uphold engineering standards and code quality
Participate in on-call duty as required, responding to urgent technical incidents

At least 4 years of experience in cloud-native backend development
Strong expertise in Golang and Node.js
Bonus points for Rust experience
Hands-on experience deploying services to Kubernetes, with full CI/CD ownership using GitHub
Proven skills with Postgres and MongoDB
Familiarity with Kafka and distributed messaging architectures
Bonus experience with ClickHouse and Iceberg-based data lakes
Good knowledge of observability, monitoring, and system health metrics
Complete professional fluency in English
Comfortable working in Agile teams and collaborating with engineers, product managers, and stakeholders
Uses AI-powered coding tools as part of daily workflow
May participate in on-call duty system; must respond within 30 minutes and be reachable by laptop, phone, or email when on call