{"id":2160428,"url":"https://alion.io/job/talentcross-sr-backend-engineer","title":"Sr. Backend Engineer","company":{"id":3853091,"name":"TalentCross","domain":"talentcross.it","url":"https://alion.io/company/talentcross","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon Aurora","optional":false},{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon EventBridge","optional":false},{"name":"Amazon Kinesis","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"AWS Step Functions","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"GitHub","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GraphQL","optional":false},{"name":"IAM","optional":false},{"name":"Least Privilege","optional":false},{"name":"MQTT","optional":false},{"name":"Node JS","optional":false},{"name":"npm","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Rest API","optional":false},{"name":"Terraform","optional":false},{"name":"Time Series Forecasting","optional":false},{"name":"TimescaleDB","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-09T08:15:32Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-13T04:23:26Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Senior Backend Engineer (Node.js/TypeScript + AWS Serverless + IoT/Time-Series)\nResumen del rol\nBuscamos un/a Senior Backend Engineer (o Lead) con experiencia en Node.js (ideal TypeScript) para diseñar, construir y operar servicios backend serverless en AWS enfocados en IoT y telemetría en series temporales. Trabajará con Amazon Aurora PostgreSQL y TimescaleDB (sobre PostgreSQL), aplicando buenas prácticas de seguridad, observabilidad y excelencia operacional.\nResponsabilidades\nDiseñar e implementar APIs y servicios en Node.js/TypeScript sobre AWS Lambda (API Gateway/ALB y triggers event-driven).\n\nDefinir arquitectura event-driven para ingestión/procesamiento de telemetría (IoT Core/MQTT, EventBridge, SQS/SNS, Kinesis, Step Functions).\n\nModelar y optimizar datos en Aurora PostgreSQL (índices, performance, particionado/gobierno de esquemas).\n\nOperar y optimizar TimescaleDB (hypertables, retención, continuous aggregates), con foco en alta frecuencia de escritura, consultas por ventanas de tiempo y costos.\n\nImplementar resiliencia: idempotencia, retries/backoff, DLQ, deduplicación, control de concurrencia, throttling.\n\nMantener CI/CD (GitHub Actions u otra) y gestión de paquetes npm privados (ideal AWS CodeArtifact).\n\nImplementar observabilidad end-to-end (CloudWatch y/o OpenTelemetry/X-Ray) y prácticas de seguridad (IAM least-privilege, secrets, cifrado).\n\nRequisitos (Must-have)\nBackend sólido en Node.js (ideal TypeScript) y diseño de APIs (REST/GraphQL) y/o servicios event-driven.\n\nExperiencia en AWS serverless: Lambda, IAM, VPC, CloudWatch + al menos 2 de: API Gateway, SQS/SNS, EventBridge, Kinesis, Step Functions.\n\nDominio de PostgreSQL y experiencia con Aurora PostgreSQL (modelado, performance, troubleshooting).\n\nExperiencia con time-series/telemetría IoT (ingestión, consultas por tiempo, agregaciones, retención).\n\nTrabajo con GitHub + PRs/code review y CI/CD.\n\nBuenas prácticas de testing, observabilidad y seguridad.\n\nDeseables\nTimescaleDB en producción.\n\nAWS IoT Core (MQTT, Device Shadows, Rules Engine).\n\nIaC (Terraform/CDK/CloudFormation).\n\nAWS CodeArtifact para npm privados.\n\nPrácticas SRE (SLOs, postmortems, on-call).\n\nStack (referencial)\nNode.js/TypeScript · AWS Lambda · API Gateway/Event sources · Aurora PostgreSQL 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