OverviewAs a Senior Backend Engineer at Lingo, you design and optimize scalable cloud-native services that transform real-time biosensor signals into actionable health insights.

You work with cross-functional teams to deliver high-performance APIs, event-driven data flows, and secure data processing at scale.

Your efforts directly support reliability, observability, and developer experience across general deployments.

This role offers impact in shaping a cutting-edge health tech platform and advancing privacy-by-design in healthcare data.

ResponsabilidadesDesign, develop, and maintain scalable microservices and APIs for real-time biosensor data processing

Implement event-driven integrations with messaging/streaming systems (Kafka, RabbitMQ) and analytics pipelines

Collaborate with SRE to ensure observability, performance, and operational excellence across backend services

Participate in architecture and design reviews, defining service boundaries, data models, and communication patterns

Optimize backend services for low latency, high throughput, and cost efficiency

Apply privacy-by-design and security standards in line with HIPAA/GDPR compliance requirements

Write clean, maintainable,



and testable code; establish and uphold engineering standards within the team

Mentor junior engineers through code reviews, pair programming, and knowledge sharing sessions

Troubleshoot production issues and contribute to incident response and post-mortem analysis

Requisitos principales5-8 years of backend engineering experience with distributed, cloud-native systems

Strong skills in microservices architecture and API design (REST; familiarity with GraphQL/gRPC)

Experience with Kubernetes in production environments and familiarity with service mesh concepts

Hands-on proficiency with messaging/streaming systems such as Kafka or RabbitMQ

Programming expertise in backend languages such as Java, Kotlin, Python

Knowledge of secure coding practices and compliance requirements (HIPAA, GDPR, or similar)

Solid understanding of performance optimization, scalability patterns, and async data processing

Strong collaboration and communication skills; ability to work cross-functionally with other engineering and product teams

collaboration

communication

mentoring

microservices

REST APIs

GraphQL/gRPC (nice-to-have)

📌 Senior Software Engineer - Backend Services (Barcelona)
🏢 Abbott
📍 Barcelona