{"id":552450,"url":"https://alion.io/job/abbott-laboratories-senior-software-engineer-backend-lingo","title":"Senior Software Engineer (Backend) - Lingo","company":{"id":2710,"name":"Abbott","domain":"abbott.com","url":"https://alion.io/company/abbott","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":285,"ghost_share":0.004,"stale_share":0.765,"repost_share":0.014,"time_to_fill_p50_days":28,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":113000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":34},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"GDPR","optional":false},{"name":"GraphQL","optional":false},{"name":"gRPC","optional":false},{"name":"HIPAA","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rest API","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"Helm","optional":true},{"name":"Java","optional":true},{"name":"Kotlin","optional":true},{"name":"Kubernetes","optional":true},{"name":"Machine Learning","optional":true},{"name":"Python","optional":true},{"name":"Service Mesh","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-09-08T17:10:19Z","employer_posted_date":"2026-09-08","last_verified_at":"2026-10-31T01:38:06Z","board_verified":true,"closed_at":null,"days_open":52,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":52},"description":"JOB DESCRIPTION:\nSenior Software Engineer (Backend)\nABOUT LINGO\nLingo 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.\nTHE OPPORTUNITY\nWe’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.\nWHAT YOU’LL DO\nDesign, develop, and maintain scalable microservices and APIs for real-time biosensor data processing.\nImplement event-driven integrations with messaging/streaming systems (Kafka, RabbitMQ) and analytics pipelines.\nCollaborate with SRE to ensure observability, performance, and operational excellence across backend services.\nParticipate in architecture and design reviews, contributing to decisions on service boundaries, data models, and communication patterns.\nOptimize backend services for low latency, high throughput, and cost efficiency.\nApply privacy-by-design and security standards in line with HIPAA/GDPR compliance requirements.\nWrite clean, maintainable, and testable code; establish and uphold engineering standards within the team.\nMentor junior engineers through code reviews, pair programming, and knowledge sharing sessions.\nTroubleshoot production issues and contribute to incident response and post-mortem analysis.\nREQUIRED QUALIFICATIONS\n5-8 years of backend engineering experience with distributed, cloud-native systems.\nStrong skills in microservices architecture and API design (REST; familiarity with GraphQL/gRPC is a plus).\nExperience with Kubernetes in production environments and familiarity with service mesh concepts.\nHands-on proficiency with messaging/streaming systems such as Kafka or RabbitMQ.\nProgramming expertise in backend languages such as Java, Kotlin, Python.\nKnowledge of secure coding practices and compliance requirements (HIPAA, GDPR, or similar).\nSolid understanding of performance optimization, scalability patterns, and async data processing.\nStrong collaboration and communication skills; ability to work cross-functionally with other engineering and product teams.\nPREFERRED QUALIFICATIONS\nExperience integrating backend services with analytics and machine learning pipelines.\nExposure to API gateways, authentication/authorization patterns, and rate limiting strategies.\nBackground in digital health, IoT, or other mission-critical platforms.\nFamiliarity with cloud platforms (Azure/AWS/GCP) and infrastructure-as-code tooling (Terraform, Helm).\nLINGO CULTURE\nCustomer-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.\nThe base pay for this position is\nN/AIn specific locations, the pay range may vary from the range posted.\nJOB FAMILY:\nProduct DevelopmentDIVISION:\nLNGO LingoLOCATION:\nSpain > Barcelona : Av. 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