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(Solo perfiles con experiencia demostrable en diseño de esquemas PostgreSQL en producción. No busco desarrollo web, sino arquitectura y consistencia relacional.) Tengo una base de datos PostgreSQL alojada en Supabase que recoge partidos, goles, tarjetas, convocatorias, sustituciones y más. Ya está conectada a Power BI y funciona, pero quiero garantizar su integridad antes de seguir creciendo. Lo que necesito • Revisar el esquema actual y unificar los tipos de clave (codigo_equipo, codigo_jugador, codigo_acta). • Definir y aplicar PK, UK, FK e índices que mejoren consistencia y tiempos de consulta. • Detectar registros duplicados y proponer claves naturales para cada tipo de evento. • Renombrar o re-codificar columnas problem&aa...

I need to bring several Visual FoxPro databases up to modern standards while also building a fresh one from scratch. On the legacy side, the structure needs a careful redesign so tables, indexes, and relations make sense for today’s workflows. As part of that redesign, stale and duplicate records have to be cleansed, and performance tuned so queries return instantly rather than in minutes. Once the data is sound, I want clear, professional-looking reports and analytics dashboards that management can run with a single click. The new database should follow the same architecture and optimisation principles so it integrates cleanly with our existing codebase. Everything must stay native to Visual FoxPro; however, if a lightweight helper tool (e.g., SQL Server Express or Power BI for t...

Our landscape construction firm juggles dozens of jobs at any given time, and I need a cloud-based system that tracks each project from the first bid through final hand-off. The core will sit on Firebase so the team can enjoy real-time updates wherever they are on site or in the office. What I need you to build • A relational structure in Firestore that clearly separates bidding, construction, and close-out data yet lets us call up every contract, invoice, plan, or photo in seconds. Documents themselves should live in Firebase Storage, linked back to their parent records. • Robust, role-based user access: estimators see bids, project managers see active jobs, finance sees invoices, and admins see everything. • Instant synchronization so two people never overwrite each...

I’m building an internal security tool and need a solid PostgreSQL foundation that starts as a single, multi-tenant database yet can be cleanly split into separate databases—and separate servers—later on. The first release will concentrate on storing architectural components (a very well defined structure) alongside threat-intelligence data (mapped to the components metadata), so the schema must keep cross-tenant isolation strict while still allowing swift relational join matching across those two domains. What I need from you • A full relational schema (ERD and DDL) optimised for multi-tenant operation—think shared-table with isolated tenant-id or schema-per-tenant, whichever you can justify—and documented so the eventual extraction path is clear. &...

Project Overview We are building a Google-based Building Performance Intelligence system for property management portfolios. The platform tracks: • SLA compliance • Task execution events • Audit scores • Rework & complaints • Certification scoring The system will serve: • Cleaning crews (task execution interface) • Supervisors (audit module) • Property managers (BI dashboard) The goal is to create an MVP that runs entirely on Google ecosystem tools Scope – MVP Phase 1 We need a developer to build: 1. Backend • Firebase or Supabase backend • Structured data model (Buildings, Zones, Tasks, Executions, Audits, Complaints) • Role-based access control 2. Web App (PWA preferred) User roles: • Cleaner &bul...

SAP HANA / SAP Analytics Role-Based Dashboard Development (Finance, Procurement, Production) Project Overview We are looking for an experienced SAP HANA / SAP Analytics consultant to design and implement a set of role-based executive dashboards that will allow us to monitor our company operations in a clear, fast, and strategic way. The dashboards must cover three core business areas: • Finance • Procurement • Production We require dashboards for 5 different user roles, each with customized access and KPI visibility: 1. Chairman of the Board 2. CEO 3. CFO 4. CPO (Chief Procurement Officer) 5. Production Manager The system must be clean, highly visual, drill-down enabled, and performance optimized. ⸻ Scope of Work 1. Role-Based Dashboard Architecture • D...

Overview We are looking for a Senior Data Engineer to join the team that owns our core data product, the platforms and infrastructure that support it, and the data services consumed by our customers. You will work closely with other engineers, product stakeholders, and customers to design, build, and operate production-grade data systems, focusing on reliable ingestion, transformation, and exposure of data through APIs and product integrations. As a senior member of the team, you will be expected to help set technical standards, improve data quality and operational reliability, and contribute to shared ownership of systems from design through to reliable operation in production environments. What you’ll do • Design, build, and maintain data ingestion pipelines • Develop and...

Design & Architecture of a Secure Data Clean Room for Credit Bureau Data Exchange Project description We are building a Data Clean Room (DCR) to securely exchange and analyze third-party data with our credit bureau platform in Ecuador, ensuring data privacy, regulatory compliance, and zero raw data exposure. We are looking for a senior data engineer / data architect with hands-on experience designing Data Clean Rooms, preferably in financial services, credit bureaus, telecom, or regulated environments. This project is not just implementation — we need expert guidance to determine whether it is better to build the DCR in-house or use an existing commercial solution. What we need We want the expert to help us with: 1. Design a Data Clean Room architecture o Secure data ingestion fr...

Design & Architecture of a Secure Data Clean Room for Credit Bureau Data Exchange Project description We are building a Data Clean Room (DCR) to securely exchange and analyze third-party data with our credit bureau platform in Ecuador, ensuring data privacy, regulatory compliance, and zero raw data exposure. We are looking for a senior data engineer / data architect with hands-on experience designing Data Clean Rooms, preferably in financial services, credit bureaus, telecom, or regulated environments. This project is not just implementation — we need expert guidance to determine whether it is better to build the DCR in-house or use an existing commercial solution. What we need We want the expert to help us with: 1. Design a Data Clean Room architecture o Secure data ingestion fr...