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I am building a health-tracking app whose core focus is capturing and analysing user data on physical activity, diet & nutrition, and medical records. I already host the project on Supabase (PostgreSQL) and now need an experienced database engineer to shape a solid schema, optimise complex JOIN queries, and write reusable SQL/PL-pgSQL functions that prepare the data logically for complete test-case coverage. Here is what I need delivered: • A scalable, normalised database design (ER diagram + SQL) that elegantly links activity logs, nutritional intake, and medical history to each user account while preserving privacy constraints. • Proven JOIN queries that fetch composite views such as “day summary”, “long-term trends”, and “doctor-ready reports” in performant ways. • Parameterised functions or stored procedures that prepare data sets for automated tests, covering edge cases and typical user behaviour so QA can run end-to-end checks with one command. • Seed scripts producing realistic sample data across all three domains to validate the schema and queries. • Brief documentation explaining table purposes, relationships, and how each function fits into the testing workflow. I work directly inside the Supabase SQL editor and the local CLI, so please keep everything compatible with standard Postgres 15 features already available in Supabase (no extensions that require elevated privileges). If you can reference previous experience modelling multi-domain health or fitness data, that will help me choose quickly.
ID Projek: 40333773
16 cadangan
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16 pekerja bebas membida secara purata ₹6,444 INR untuk pekerjaan ini

As an experienced backend ninjah, I am confident in my ability to architect and optimize your Supabase-based health-tracking app. While I primarily use Laravel and MySQL, I'm no stranger to PostgreSQL, as the core of Supabase. I comprehend the importance of creating a scalable and normalized database design that respects privacy paradigms. Drawing from my strong grounding in SQL and understanding of Supabase, I can craft complex JOIN queries that enable composite views in a performant fashion so you can gain actionable insights from the health data. In addition to my SQL skills, I bring my innate penchant for designing solutions with a long-term perspective in mind. Your project requires parameterized functions and stored procedures that'll gracefully carry test datasets across edge cases and typical user behavior. This falls perfectly within my competency range. I appreciate thorough testing and end-to-end checks in software development; therefore, you can count on me to meticulously create these functions.
₹2,000 INR dalam 2 hari
4.9
4.9

Database architecture is one of my strongest areas — I've designed schemas for financial systems where getting the data model wrong costs real money. Health data has similar constraints: it needs to be accurate, queryable, and structured so it doesn't become a mess as the app grows. For your schema, I'd start by mapping the three data domains (activity, nutrition, medical records) into clean, normalized tables with proper foreign keys and constraints. Each domain gets its own set of tables but they all link back to the user profile through a consistent pattern. This keeps queries straightforward whether you're pulling a single user's workout history or aggregating nutrition trends across the whole user base. For the time-series nature of health data, I'd use partitioning on the activity and nutrition tables by date range. This keeps queries fast even as data accumulates — PostgreSQL handles this natively and Supabase doesn't get in the way. The SQL functions I write will be reusable PL/pgSQL that your app calls through Supabase's RPC interface. Things like: calculate weekly activity summaries, flag nutritional gaps against recommended intake, generate comparison reports across time periods. Each function documented with input parameters, return types, and example calls. For the complex JOINs you mentioned, I'll make sure they're covered by proper indexes from the start — not bolted on later when things get slow. I'll include an EXPLAIN ANALYZE for each major query so you can see exactly how PostgreSQL executes them. Delivered with: full migration scripts, seed data for testing, function documentation, and an ERD diagram showing how everything connects. Happy to walk through the design on a call before I start building.
₹10,000 INR dalam 4 hari
3.6
3.6

As an experienced database engineer and a Graduate with an MBA in Data Science & Analytics, I believe my skill set makes me a strong candidate for your health data architecture project on Supabase(PostgreSQL). I have honed my skills in system analysis, requirement documentation, and user acceptance testing in the banking domain. My proficiency in MySQL, Oracle, PostgreSQL, SQL alongside other analytical tools such as Python and Power BI makes me adept at handling complex datasets. Although health and fitness aren't areas where I have particularly focused before, I have successfully applied similar multi-dimensional modelling techniques to various industries. For instance, in the banking sector, I’ve dealt with robust systems with complex relationships that needed careful design and optimization like your project requires. Working within the standard features available on Supabase Postgres 15 won’t be a problem. Kindly give me an opportunity to bring my skills and experience to bear on your project.
₹7,000 INR dalam 7 hari
0.0
0.0

Designing a comprehensive and privacy-conscious health data architecture is critical for delivering insightful user analytics and ensuring compliance with sensitive medical information handling. Your need for a robust, normalized schema that seamlessly integrates physical activity, nutrition, and medical records aligns perfectly with best practices in health informatics, which emphasize data integrity and efficient query performance for real-time insights. Crafting this architecture with scalability and privacy at the forefront will enable your app to evolve with user needs and regulatory demands. Leveraging advanced PostgreSQL capabilities within Supabase, the approach will focus on designing an ER diagram that clearly delineates relationships while enforcing data privacy constraints through schema design. Complex JOIN queries will be optimized for rapid retrieval of composite views such as day summaries and doctor-ready reports, ensuring minimal latency. Parameterized stored procedures and PL/pgSQL functions will automate data preparation for comprehensive test coverage, facilitating streamlined QA processes. Seed scripts will generate realistic datasets reflecting typical and edge-case user behaviors, validating both schema robustness and query accuracy without relying on external extensions. Committed to delivering clean, well-documented code compatible with PostgreSQL 15, the final deliverables will include detailed documentation to ease future maintenance and onboarding. This structured and transparent approach guarantees that your health-tracking app operates with reliable data accuracy and performance, ready for rigorous testing and scale. Let’s discuss how to move forward efficiently to meet your project milestones with precision and clarity.
₹11,250 INR dalam 7 hari
1.0
1.0

With my insatiable passion for data, I believe I can steer your health-tracking app project towards success. Having worked extensively with SQL databases, specifically MySQL, my track record in data cleaning, preprocessing, and quality improvement is impeccable. These skills are vital for crafting a solid database schema and optimizing complex join queries. Moreover, my proficiency in exploratory data analysis and statistical insight generation allows me to provide you with an enhanced understanding of your health-related data from various angles. This will significantly contribute to the creation of composite views such as "day summary," "long-term trends," and "doctor-ready reports". Coupled with my expertise in scalable database design, my approach will ensure the preservation of privacy constraints. At the end of our collaboration, I'll ensure that you have comprehensive documentation explaining how each function fits into the testing workflow. In conclusion, as a dedicated and experienced professional committed to smart, data-driven decision making through tailored and pragmatic solutions, I am eager to kick-start this partnership towards a successful completion of your Supabase Health Data Architecture project.
₹1,500 INR dalam 7 hari
0.0
0.0

I'll build a production-ready Supabase schema connecting activity logs, nutritional intake, and medical records with privacy controls and analytics support. Deliverables include normalized schema with ER documentation, optimized JOIN queries for daily summaries and trend reports, and parameterized PL/pgSQL functions generating realistic test datasets covering edge cases and typical user flows. All components use standard Postgres 15 features compatible with Supabase. You'll receive seed scripts and documentation explaining how each component supports your QA workflow. I've architected multi-domain data systems for health and e-commerce clients over the past decade, with deep experience in complex JOIN optimization and automated test data generation.
₹6,250 INR dalam 5 hari
0.0
0.0

Hi, I’ve built similar multi-domain Postgres systems and can design your Supabase DB to be clean, fast, and test-ready. I’ll deliver: - Normalized schema (activity, nutrition, medical) + ER diagram - Optimized JOIN queries for summaries, trends, reports - Reusable PL/pgSQL functions for app + QA automation - Realistic seed data with edge-case coverage - Clear, minimal documentation Everything will be Postgres 15 / Supabase-compatible, no risky extensions. I focus on performance + scalability from day one, not just structure. Quick question: do you expect doctor/admin access later? I can design for that now. Ready to start immediately.
₹7,000 INR dalam 5 hari
0.0
0.0

Hey, Your project sounds interesting—especially the combination of activity, nutrition, and medical data in one system. I’ve worked extensively with PostgreSQL (including Supabase) and can help you design a clean, scalable schema that keeps data well-structured while handling privacy properly. I can support you with: Designing a normalized DB (ER + SQL) that connects all three domains efficiently Writing optimized JOIN queries for summaries, trends, and reports Creating reusable SQL/PL-pgSQL functions for test-ready datasets Adding seed scripts with realistic data for proper validation Keeping everything fully compatible with standard Postgres 15 (no restricted extensions) I’ve also handled similar multi-domain data modeling and performance tuning, so I understand the challenges around query optimization and clean architecture. Let’s connect
₹6,700 INR dalam 7 hari
0.0
0.0

Hi, I reviewed your requirement and this aligns very well with my experience in SQL, data handling, and test data preparation. With 18+ years in software testing and strong hands-on experience in SQL, I have worked extensively with complex joins, data validation, and preparing structured datasets for end-to-end testing. Here’s how I can help: • Design a clean, normalized schema linking activity, nutrition, and medical data with proper relationships • Write optimized JOIN queries for daily summaries, trends, and reporting • Create reusable SQL/PL-pgSQL functions to support test scenarios and edge case validation • Generate realistic seed data for comprehensive testing • Provide clear documentation for schema, queries, and usage I also bring a QA perspective, ensuring the data model supports complete test coverage and practical validation scenarios. I can start immediately and deliver a structured, reusable solution. Quick questions: 1. Should the schema be designed from scratch or based on an existing structure? 2. Any expected data volume or performance constraints? Looking forward to working with you. Best regards, Vasundhara
₹6,500 INR dalam 6 hari
0.0
0.0

Hi! I'm a specialized database engineer with extensive experience in architecting scalable PostgreSQL schemas on Supabase. Designing a multi-domain health system requires more than just tables; it needs a normalized strategy that balances speed with strict privacy. My Technical Approach: 1. Normalized Schema: I will build an ER model that decouples Activity, Diet, and Medical History while maintaining high integrity through foreign key constraints and GIN/Btree indexing. 2. Analytics-Ready Views: I'll develop optimized Composite Views for "Day Summaries" and "Doctor-Ready Reports," ensuring complex JOINs remain performant as your dataset grows. 3. Automated Testing Environment: I'll write parameterized PL/pgSQL functions that generate "Edge Case" scenarios and full seed scripts (Realistic Sample Data), making your QA process seamless and command-driven. 4. Privacy First: I'll implement strict Row Level Security (RLS) policies within Supabase to ensure medical data remains accessible only to authorized users. I have modeled similar health and fitness datasets before and understand the precision required for medical record storage. I'm ready to deliver a clean, production-ready schema today.
₹3,000 INR dalam 1 hari
0.0
0.0

A dedicated MS SQL Database Administrator with 8.7+ years of experience, Including 2+ Experience of Technical Lead. Skilled in managing large, complex database environments with expertise across SQL Server 2012–2022. With hands-on experience supporting 150+ servers (including 80 production), I specialize in high availability (AlwaysOn), disaster recovery, performance tuning, and end-to-end database administration. Known for strong analytical abilities, commitment to reliability, and a proactive approach to system optimization and incident management. Key Roles & Responsibilities • Installation, configuration, and administration of MS SQL Server environments. • Designing and implementing High Availability & Disaster Recovery (HADR) solutions using AlwaysOn Availability Groups. • Performing performance tuning, including query optimization, DB configuration, memory tuning, and I/O analysis. • Managing database objects—tables, indexes, views—and ensuring optimal application performance. • Monitoring system health, jobs, processes, and proactively handling failures and incidents. • Managing user access, security controls, and supporting development and testing teams. • Ensuring timely and reliable backup strategies and participating in DR drills. • Conducting requirement analysis, building solutions, unit testing, and upgrading applications. • Providing production support, incident management, problem resolution, and coordination with users and stakeholders
₹7,000 INR dalam 7 hari
0.0
0.0

Hello, Your project aligns well with my background as an MBBS doctor pursuing a Master’s in Digital Health, with hands-on experience in healthcare data analysis and database-driven workflows. I can design a clean, scalable PostgreSQL schema in Supabase that integrates activity, nutrition, and medical data while maintaining logical structure and privacy considerations. Approach: • Design a normalized schema (ER + SQL) linking user, activity, nutrition, and medical records • Build optimized JOIN queries for: Daily summaries Long-term trends Doctor-ready reports • Develop reusable PL/pgSQL functions for test-case generation and QA workflows • Create realistic seed scripts covering diverse user scenarios • Provide clear documentation for schema, queries, and functions I ensure: ✔ Clean, scalable design aligned with real healthcare use ✔ Efficient query performance ✔ Compatibility with Supabase (Postgres 15, no restricted extensions) My clinical + data background helps structure medical data meaningfully, not just technically. Happy to discuss schema approach before starting. Best regards, Dr. Revathi
₹8,000 INR dalam 7 hari
0.0
0.0

I can design a scalable and well-structured PostgreSQL schema for your health-tracking application, ensuring proper normalization and clear relationships between activity, nutrition, and medical data while keeping privacy in mind. I will create optimized JOIN queries to generate day summaries, long-term trends, and detailed reports with good performance. I can also write reusable SQL/PL-pgSQL functions to prepare datasets for automated testing, covering common cases and edge cases. Along with this, I will provide seed scripts with realistic sample data to validate the schema and queries. Additionally, I will include simple and clear documentation explaining table structure, relationships, and how the functions can be used in your testing workflow. All work will be fully compatible with standard PostgreSQL in Supabase.
₹7,000 INR dalam 7 hari
0.0
0.0

India
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Ahli sejak Jul 11, 2015
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