Database Development Jobs

I need an expert to optimize my Airflow DAGs. Currently, they are performing data extraction, transformation, and loading from on-premises servers and are taking too long to complete. Key Requirements: - Optimize existing DAGs for faster execution - Ensure reliability and maintainability of the workflows Ideal Skills: - Strong experience with Apache Airflow - Proficiency in working with on-premises data sources - Expertise in optimizing data workflows and Airflow operators - Solid understanding of data extraction, transformation, and loading (ETL) processes Your experience in similar projects will be a plus.

PipeFlow Pro is a cloud-based management information system tailored for plumbing businesses. This platform will streamline operations by organizing customer requests, scheduling plumbers, tracking inventory, managing invoices, and analyzing business performance through reports. The system will analyze fictional data and must include: - Real-time emergency call tracking - Customer record management with service history storage - Digital invoicing and estimates creation - Inventory tracking for parts and supplies - Scenario simulation for business optimization Ideal candidates should have expertise in: - Developing MIS platforms with user-friendly dashboards and mobile apps - Data analysis, generation, and scenario simulation tools - Report generation to improve business operat...

I need a list of business in the UK that don't have a website; mainly tradespeople (such as builders, plumbers, electricians, gardeners, etc), but also for other companies such as solicitors or accountants - as long as they are legitimately trading companies. I need a few different bits of information in this list and in addition to the most obvious things such as the company name, the sector (plumber/builder/accountant), and contact information. Where possible I would also like a name and email address. I would also like the links to any of their social media pages (Facebook, Google Business Profiles, Instagram, etc). There are 48 counties in the UK but I would initially like to start off with 3 counties - Hertfordshire, Cambridgeshire and Buckinghamshire. I would see this in an Exce...

Our expedition operations have out-grown scattered Excel sheets, email threads and ad-hoc trackers. I now need a single, fully structured database platform that captures every helicopter and submersible permission, operational approval, voyage plan, authority contact, document asset, workflow step and compliance milestone in one place, all driven by a shared calendar. Core scope • Design a relational schema that links aircraft and sub assets, voyages, permits, crew, authorities and supporting documents. • Build a web-based interface—desktop first, responsive for field tablets—that lets users create, update and search records quickly. • Implement moderate role-based access (admin, manager, user) so day-to-day staff can work without touching configuration sc...

I’m launching a ground-up ERP solution and need a seasoned architect to capture every detail in a clean, professional documentation suite. The work spans three core modules—Inventory Management, Customer Relationship Management (CRM), and Human Resources (HR)—and there is no existing material for you to lean on, so you’ll be setting the structure as well as the content. You will map the full functional flow, data models, and integrations, translating them into concise narrative sections and companion visuals. Think clear Word/PDF chapters supported by UML class diagrams, sequence diagrams, ERDs, and process flowcharts—whatever best illustrates how each module operates and interacts. Key deliverables: • Comprehensive written specifications for Inventory,...

I'm looking for an experienced developer to create a multi-tenant payroll system tailored for Grenada. The system must be able to calculate gross salaries, overtime, and allowances accurately. Essential Features: - Gross salary calculation, Overtime and allowances - Bank exports and PDF payslips - Compliance with NIS and PAYE tax regulations - Configurable NIS rates (employee/employer %) and progressive PAYE tax adjustments without code Ideal Skills and Experience: - Strong background in payroll systems - Experience with multi-tenant architecture - Knowledge of Grenadian tax and compliance requirements - Ability to create configurable tax and rate settings Please share previous work samples and relevant experience. Grenada Payroll: Multi-tenant system. Calculates gross, overtime,...

We are looking for a high-quality Australian business contact database containing approximately 20,000 valid and verified email contacts sourced from and other reliable public business directories/websites. The database should include businesses from industries such as Restaurants, Cafés & Bars, Salons, Spas & Beauty Studios, Retail Stores & Boutiques, Gyms & Fitness Studios, Event Planners & Wedding Decor companies, and Gaming Cafés, Gaming Studios & Streamers. For each business, we require the Company Name, Industry Category, Contact Person Name, Website, Phone Number, Full Business Address, and a valid contact email address. All emails must be active and deliverable, with no duplicate entries, and only Australian businesses should be included. The ...

I need a custom, browser-based database that brings every core part of my trucking operation into one place. A clean, data-centric interface is essential; I am far more interested in quick access to numbers and records than flashy graphics. Two distinct user roles have to be supported: Administrators with full control and Drivers with a limited, task-focused view. Core modules I expect from day one: • Income & expense tracking that lets me filter by truck, trailer, driver, customer, and date range, then export to Excel or CSV. • Driver management with profiles, licensing and certification dates, incident logs, and settlement details. • Equipment management covering trucks, trailers, maintenance schedules, repair history, and depreciation data. • IFTA reportin...

PLEASE DO NOT REPLY TO THIS JOB ADD BEFORE READING THIS JOB AND PROVIDING THE REQUESTED INFORMATION. I have developed a large in-house project management software system built in Microsoft Access for an accounting office. The system contains hundreds of forms, queries, tables, reports, macros, and VBA modules. The software is actively used to store, organize, search, manage, and report on client and project data for the office. Part of the system was developed by me, and part was developed by another programmer with more advanced VBA knowledge. Over time, certain forms, queries, and functions have developed issues, errors, and performance problems that now require troubleshooting, debugging, restructuring, and enhancement by someone highly experienced in advanced Microsoft Access and VB...

I want to build a modern AI-powered photo sharing and freelancer hiring platform similar to Instagram + Behance + Fiverr. The platform should allow users to upload and share photos, reels, videos, portfolios, and creative content while also allowing businesses and clients to hire photographers, videographers, editors, designers, and other creative professionals directly from the platform. This application is focused mainly on creators and visual professionals. Main user types: • Photographers • Videographers • Video Editors • Photo Editors • Graphic Designers • Influencers • Content Creators • Models • Agencies • Brands The platform should feel premium, modern, smooth, mobile responsive, and highly scalable. ━━━━━━━━━━━━━━━━━━━ MAIN FE...

I need a comprehensive web portal to track and analyze various data for multiple schools. The portal should be structured to provide individual records for each school, as well as aggregate data monitored by administrators at different levels (DDO, cluster-wise, district-wise). Essential data to be tracked for each school includes: - Attendance records - Academic performance - Financial information - Sports activities - Teacher details - Learning capacity - Education metrics Ideal Skills and Experience: - Experience in developing robust data management systems - Proficiency in web development and database integration - Strong analytical skills to ensure accurate data monitoring and reporting - Prior experience in educational data systems would be a plus Please provide samples of similar...

I’m about to launch a country-wide online marketplace and need a compelling database of listings in place before opening the doors to real sellers. The platform will showcase multiple product categories—think electronics, clothing, home goods and any other everyday essentials locals typically look for—so the seed content has to feel varied and authentic. Here’s what I need from you: • A spreadsheet (CSV or Google Sheet) that’s ready for bulk import, with each row representing one product listing. • For every listing: a clear title, concise description, realistic price in our local currency, condition flag (new/used), and the correct category tag. • One royalty-free or licence-cleared image per item, delivered in a zipped folder; image f...

AI Implementation Expert — Business Knowledge Capture & AI Agent Deployment We are looking for an experienced AI implementation specialist to help modernise a 40-year-old established business. This is a multi-phase project and we need someone who has done this before — not someone who is learning on the job. THE PROJECT This business has decades of operational knowledge sitting in the heads of key employees, email threads, legacy non-cloud systems and Xero. Our goal is to extract, organise and operationalise that knowledge — and then layer AI on top of it. Think of it in three phases: Phase 1 — Knowledge Audit Audit the business to understand where information currently lives. Map all systems, processes, tools and key person dependencies. Identify gaps and ...

I need to find the certification number of a specific PSA card with a population of 7 using the PSA database. Requirements: - Access to the PSA database - Ability to query for certification numbers Ideal Skills and Experience: - Familiarity with PSA database - Experience with database querying

I need one-on-one SQL coaching that starts from the absolute basics and quickly builds enough confidence for day-to-day operational queries. Right now I’m a complete beginner: I can open a client, but joins, sub-queries, and even simple SELECT…WHERE syntax still feel intimidating. What I’d like is a practical, session-based approach. We will meet live (screen-share or video) where you demonstrate, then watch me repeat and tweak until the concepts stick. Realistic exercises drawn from log tables, user records, or any sample dataset you have handy are ideal. By the end of our work together I want to: • Read, write, and troubleshoot SELECT, INSERT, UPDATE, and DELETE statements • Combine tables with INNER/LEFT joins and aggregations • Recognise and a...

I need an Oracle APEX application currently running on a local Oracle database migrated to Oracle Cloud. The existing code needs to be updated for easier maintenance and understanding by beginner testing engineers. Requirements: - Update data entry forms, reporting modules, and user authentication - Implement unified search using Oracle Text and IDs - Migrate and update tables, schemas, stored procedures, triggers, and constraints Ideal Skills & Experience: - Proficiency in Oracle APEX and Oracle Cloud - Strong experience in database migration and code refactoring - Ability to simplify complex code for beginners - Good communication skills for discussions with my IT team

PLSQL, Java & Git Support Open Posted about 12 hours ago • Ends in 6 days $30-250 USD Paid on delivery I need a reliable extra pair of hands to work alongside me on an Oracle-backed, Java-driven application. Day-to-day you’ll move between three main areas: PLSQL: writing complex queries, crafting or refactoring stored procedures/functions, and tuning anything that drags. If you can read execution plans and know how to trim milliseconds through indexing or hints, you’ll feel right at home. Java: the codebase frequently needs new features added, pesky bugs traced and fixed, and the occasional round of ruthlessly focused optimisation. It’s largely Spring, Maven and JUnit, but clean core-Java skills and an eye for performance are what matter most. Git: every ...

1. Project Overview The objective of this project is to design and develop a powerful, scalable, secure, and professional Enterprise Architecture Management Software Platform capable of supporting complex digital transformation programs, enterprise-wide architecture governance, application portfolio management, technology standardization, business capability mapping, impact analysis, roadmapping, and executive decision-making. The platform shall serve as a centralized digital repository for managing all enterprise architecture assets, including business capabilities, processes, applications, data assets, technologies, integrations, risks, controls, standards, initiatives, projects, and transformation roadmaps. The system must enable organizations to document their current architecture, d...

Drone Pilot Marketplace & Subscription Platform Project Overview Following our discovery meeting, we have refined the project scope into a scalable drone services marketplace platform designed to connect verified drone pilots with clients globally. The platform will combine: • Lead generation website • Pilot marketplace ecosystem • Subscription & ranking system • Job posting & bidding workflow • Admin moderation system • Internal messaging platform • Pilot achievement & badge system • Future-ready mobile app architecture The goal is to create a trusted and scalable ecosystem where: • Clients can post drone projects • Pilots can compete for projects • Administrators can moderate quality & trust • Revenue is gene...

REAL ESTATE DATA RESEARCH VA NEEDED – REALTOR LEAD LIST BUILDING I am seeking a highly organized Virtual Assistant to build targeted Realtor lead lists for a nationwide homebuyer education and mortgage readiness company. PROJECT GOAL: Create high-quality Realtor databases in specific U.S. cities for outreach and partnership development related to: * First-time homebuyers * Conventional loans * Down payment assistance * Mortgage readiness education * Buyer approval preparation INITIAL TARGET MARKET: San Antonio, Texas WHAT I NEED: Research and compile Realtor information into Excel or Google Sheets. DATA FIELDS REQUIRED: 1. Realtor Name 2. Brokerage Name 3. Email Address 4. Phone Number 5. Website 6. City/State 7. Social Media Links (if available) 8. Notes if they specialize in...

We are looking for a database developer/compiler who can help us develop and maintain our databases. The ideal candidate will have experience with both SQL and NoSQL databases, and will be able to write efficient and reliable code. They will also be able to work with our team to ensure that our databases are up-to-date and meet our needs.

Saya membutuhkan bantuan untuk menyiapkan infrastruktur database dan melakukan tuning menyeluruh pada instance PostgreSQL kami. Fokus utama saya adalah mengatasi performa lambat yang mulai berdampak pada aplikasi produksi. Ruang lingkup pekerjaan: • Audit konfigurasi server dan parameter runtime (shared_buffers, work_mem, dll.) • Analisis EXPLAIN ANALYZE pada query paling berat, lalu optimasi indeks dan struktur tabel. • Implementasi metode caching, partitioning, atau vacuum strategi yang relevan. • Pembuatan skrip monitoring ringan (PgBouncer, pg_stat_statements, atau alat serupa) agar kinerja mudah dipantau ke depannya. Deliverable yang saya harapkan: 1. Laporan awal berisi temuan bottleneck utama. 2. Rekomendasi dan perubahan konfigurasi yang sudah diuji....