Senior Software Engineer (Backend) - Lingo

Abbott; Madrid; Presencial; EUR 70.000 - 110.000; Jornada completa

Descripción de la vacante

Lingo is building a cutting-edge digital health platform in Madrid. We seek a Senior Software Engineer (Backend) to design, build, and optimize scalable backend systems, APIs, and data integrations across our global deployments.

You will work with Product, Mobile, Platform/SRE, and Data/ML teams to deliver reliable cloud-native services, mentor engineers, and uphold HIPAA/GDPR compliance and security standards.

Formación

• 5-8 years of backend engineering experience with distributed, cloud-native systems.
• Strong microservices architecture and API design (REST; GraphQL/gRPC is a plus).
• Production Kubernetes experience and familiarity with service mesh concepts.
• Hands-on proficiency with messaging/streaming systems such as Kafka or RabbitMQ.
• Programming expertise in Java, Kotlin, Python.
• Knowledge of HIPAA, GDPR, or similar compliance and secure coding practices.
• Solid understanding of performance optimization, scalability patterns, and async data processing.
• Strong collaboration and communication across engineering and product teams.

Responsabilidades

• Design, 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 reliability.
• Participate in architecture and design reviews, defining service boundaries and data models.
• Optimize backend services for low latency, high throughput, and cost efficiency.
• Uphold privacy-by-design and security standards (HIPAA/GDPR).
• Write clean, testable code and maintain engineering standards.
• Mentor junior engineers through code reviews and pair programming.
• Troubleshoot production issues and contribute to incident response and post-mortems.

Conocimientos

Microservices

API design

Kubernetes

Kafka

RabbitMQ

Java

Kotlin

Python

HIPAA/GDPR

Performance optimization

Async data processing

Cloud-native services

Collaboration

Herramientas

Terraform

Helm

Kafka

RabbitMQ

Descripción del empleo

Job ID: 31161202Company: Abbott LaboratoriesLocation: Spain - BarcelonaJob Type: Full timeCategory: Research & DevelopmentIndustry: HealthcarePosted Date: 2026-09-08Senior Software Engineer (Backend)

ABOUT LINGO

Lingo is building a cutting‑edge digital health platform that fuses continuous biosensor data, high‑performance backend engineering, and advanced analytics to help people live healthier, longer, fuller lives. Our systems process massive volumes of real‑time data, and the backend is the heartbeat that transforms biosensor signals into actionable health insights for our users.

THE OPPORTUNITY

We’re seeking a Senior Software Engineer (Backend) to design, build, and optimize Lingo’s backend systems, ensuring they are scalable, resilient, and secure. You will play a pivotal role in implementing high‑performance APIs, event‑driven services, and data integrations across our global deployments. In this role, you’ll work closely with Product, Mobile, Platform/SRE, and Data/ML teams to deliver robust cloud‑native services, troubleshoot complex issues, and continuously improve reliability and developer experience. You’ll contribute your expertise to architecture discussions, lead implementation of key projects, and mentor junior engineers in best practices.

WHAT YOU’LL DO

• Design, 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, contributing to decisions on 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.

REQUIRED QUALIFICATIONS

• 5-8 years of backend engineering experience with distributed, cloud‑native systems.
• Strong skills in microservices architecture and API design (REST; familiarity with GraphQL/gRPC is a plus).
• 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.

PREFERRED QUALIFICATIONS

• Experience integrating backend services with analytics and machine learning pipelines.
• Exposure to API gateways, authentication/authorization patterns, and rate limiting strategies.
• Background in digital health, IoT, or other mission‑critical platforms.
• Familiarity with cloud platforms (Azure/AWS/GCP) and infrastructure‑as‑code tooling (Terraform, Helm).

LINGO CULTURE

Customer‑first, quality‑driven, growth‑minded, and united. As a Senior Backend Engineer, you’ll contribute directly to delivering secure, reliable, and scalable features, helping teams ship innovative health technology quickly and with confidence.

Skills

microservices architectureapi designkubernetesjavapythonkafkarabbitmqgraphqlgrpcservice meshsecure coding practiceshipaa complianceperformance optimizationscalability patternsasync data processingcloud-native servicesbackend programmingcollaborationcross-functional teamworkmentoringpost‑mortem analysisanalytics pipeline integrationmachine learning pipeline integrationapi gatewaysauthentication/authorization patternsrate limiting strategiesazureaws

Senior Software Engineer (Backend) - Lingo • Madrid, Spain