Hire the Best Database Development Professionals

Top Rated · 100% Job Success · You keep full ownership of everything I build. I am a full stack developer, database architect, and SaaS developer. I design scalable database systems, build production-ready web applications, and integrate AI into products that work for real users. Full stack developer. Next.js. TypeScript. End to end. As a full stack developer I own the entire stack PostgreSQL schema design, Node.js backend, Next.js and React frontend, REST API integrations, Stripe payments, and Vercel deployment. Need a full stack developer who takes ownership from database to deployment without hand-holding? Let's talk. Recent full stack work includes a multi-tenant property management SaaS on Next.js and Supabase with role-based access, admin dashboards, and OpenAI integrations and a freelance marketplace with a GraphQL API layer, BullMQ background job queues, and row-level security enforcing per-user data isolation across clients and freelancers. Database architect. PostgreSQL. Supabase. SQL. Production-grade. As a database architect I design schemas from scratch normalization, ERD modelling, indexing strategies, query optimization, and Row Level Security policies. I migrate businesses from messy Excel and Google Sheets into clean, scalable PostgreSQL and Supabase systems with zero data loss and full audit trails. Recent database work includes a fuel business management platform with complex relational schema covering customers, orders, deliveries, invoicing, and payment cycles and a POS system with real-time inventory tracking, sales reporting, and automated invoice generation, all built on Supabase and PostgreSQL. Backend developer. Node.js. NestJS. REST APIs. As a backend developer I build structured, scalable Node.js and NestJS APIs with TypeScript end to end modular architecture, dependency injection, guard-based authentication, and clean REST API layers. I design and implement authentication flows, role-based access control, webhook handling, and background job processing for production applications that need to scale reliably. SaaS developer. Multi-tenant. Stripe. Production-ready. As a SaaS developer I build complete products end to end authentication, database, Stripe subscriptions and webhooks, dashboards, role-based access, and deployment. I have delivered a business management platform with automated PDF invoicing, cron-based billing cycles, and email dispatch via Resend; a wedding management system with client records, fare packages, and booking history; and a lead management dashboard with WhatsApp automation via ManyChat and automated drip campaigns. AI developer. OpenAI. Claude API. LLM integrations. As an AI developer I integrate LLM APIs into production applications document processing pipelines, AI-powered workflow automation, structured prompt engineering, and AI-assisted data extraction. All API keys handled server-side, never exposed to the browser. I have built OpenAI and Claude integrations into SaaS platforms delivering real features, not demos. Security. Supabase RLS. Multi-tenant isolation. I implement Row Level Security on every Supabase project enforcing per-user and per-tenant data isolation at the database level, not just the application layer. RLS policies, protected API routes, secure file access via signed URLs, and environment variable hygiene are standard practice on every project I deliver. Integrations. Automation. Third-party APIs. QuickBooks API integration for financial data sync into web dashboards. Airtable integrations. ManyChat and WhatsApp API automation. Resend for transactional email. Stripe checkout, subscriptions, webhooks, and billing portals. REST API development and third-party service connections across every project. How I work: Daily updates, no ghosting. Honest timelines. 30+ hours per week. 0–4 hour response time. I use Cursor and Claude Code daily to move fast without cutting quality. Full code ownership transferred on every handover. Stack: PostgreSQL · Supabase · SQL · pgvector · MongoDB · Prisma · Redis · Next.js · React · Nest.js · TypeScript · JavaScript · Tailwind CSS · Shadcn UI · Stripe · OpenAI · Claude API · Node.js · Express · Docker · Vercel · Railway · AWS · Cloudflare R2 · QuickBooks API · Airtable · ManyChat · WhatsApp API · Resend · GraphQL · BullMQ · REST APIs Message me with what you need database design, SaaS build, AI integration, or all three. I'll give you a straight answer on whether I can help and how long it takes.

Hey, I'm Ahmad Javeed, I'm a software engineer with more than 5 years of experience, I specialize in database management, Microsoft Access database or Access database engineering and database administration. and also in UI & UX designing, Android development, Web development, Full Stack development, and software development, also Please contact me and let make a best software solution for your business.

SQL Developer | Database Developer & Architect | Data Modeler | Performance Tuning | Data Migration | ETL Solutions | Data Warehouse With over 10+ years of experience in database development, architecture, data modeling, and ETL solutions, I specialize in designing high performance, scalable database solutions. What I Can Do for You: • Database Design & Development • Data Modeling (Conceptual, Logical, and Physical) • ERD (Entity Relationship Diagram) Design & Documentation • SQL Development & Advanced Query Optimization • Database Programming (Stored Procedures, Functions, Triggers, Views, and Database Objects)) • Database Performance Analysis & Tuning • ETL Design, Development & Data Migration • Data Warehousing & Business Intelligence Solutions • Database Assessment, Troubleshooting, Normalization & Modernization I have successfully delivered database and data solutions across multiple industries, including Banking, Education, Booking & Reservation Systems, ERP Solutions, Government Organizations, Large Scale Enterprise Systems, and Enterprise Applications. Please provide me any existing documents; I will review them without cost . I can commence immediately, upon receipt of files and/or specifications, and typically provide either recommendations or a mock-up for review within 12 hours.. It would be my pleasure to work together and I will do my best to meet your expectations. Best Regards,

I help businesses and individuals automate their day-to-day operations by replacing manual spreadsheets and disconnected tools with secure, multi-user systems built for remote teams, and data that's reliable, yours, and stored where you choose. No subscriptions, no lock-in and no extra software to buy, as everything runs on Windows and Office you already own. Compared to off-the-shelf SaaS platforms, these systems are faster to build, cheaper to run, and shaped around exactly what you need, instead of a bloated tool where you're paying for features you'll never use. Systems are fully customized to your business, your data stays local or on secure cloud, and you can make changes yourself, like adding a new category or updating a status list, without waiting on a developer to make the change for you. They are low-maintenance so you can move to a new computer, add a new user or expand to a new department easily yourself. With $200k+ delivered across 100+ projects on Upwork, a Top Rated Plus track record, and 20+ years across the Microsoft data stack, I've solved these problems across shipping, finance, manufacturing, compliance, and hospitality. I work solo, not through an agency, so you talk only to me. I do all the work myself, and I know your system inside out from day one, so there's no handoff, no one else learning on your project, and no waiting on someone else's availability. "Perhaps the highest skill level I've seen in the database space." — Paul Cracknell, OSR Enterprises What I deliver Power BI dashboards and KPI tools — standalone or embedded directly into your Access/Excel system, so reporting is right where you already work Excel automation with Power Query, Power Pivot, and VBA that automates hours of manual work MS Access CRMs, order, invoicing, and quoting systems that run correctly from day one and scale with your team Automated workflows with one-click Excel report generation and export, automated emails with attachments through Gmail or Outlook, document generation SQL Server, Azure SQL and Dataverse backends for secure, multi-user systems Fast, low-disruption database upgrades, migrations, and optimization Automated backups so your data is always safe Proven results Power BI dashboard that replaced 20+ scattered Excel files with a single source of truth Excel reporting solution that saved 15+ hours every month MS Access compliance database now used daily by AML teams across departments Automated invoicing system that cut billing delays by 80% SQL Server migration for 25+ users with zero downtime We can start with a chat or call so I can understand your actual workflow, flag the risks and give you a clear plan before we begin. You always know what you're getting and what it costs. I have many demo solutions available, including Power BI dashboards, Excel systems, and Access CRMs, so you can see the quality of my work up front and maybe we can find something close to what you are after and build on it instead of starting from scratch. If you tell me what's slowing you down, I will send you a project plan with my proposed solution and my portfolio. You will get a clear plan, with no obligation. Best Kostas

Senior Oracle Developer & Database Administrator with 10+ years of experience in designing, developing, and managing enterprise database applications. Strong expertise in Oracle Database, SQL, and PL/SQL development, along with extensive hands-on experience in Oracle Forms and Reports. Skilled in building modern web applications using Oracle APEX with REST API integration. Experienced in Oracle Database installation, configuration, and maintenance on Microsoft Windows environments. Proficient in database performance tuning, query optimization, and business workflow automation. Committed to delivering secure, scalable, and high-performance solutions for business-critical systems.

I am a Database and Desktop Application Developer with extensive experience in SQL development and business software. I have worked with MySQL, Microsoft SQL Server, Firebird, and SQLite, designing databases, writing complex SQL queries, stored procedures, and optimizing database performance. I have experience in database design, migration, integration, and maintenance for business-critical applications. In addition to database development, I have many years of experience building desktop applications using C++ Builder and Delphi. I have developed software for accounting, sales, production management, inventory control, and other business processes. My skills include: • SQL Development and Query Optimization • Database Design and Data Modeling • MySQL, MS SQL Server, Firebird, SQLite • Stored Procedures, Triggers, Views • Database Migration and Integration • C++ and Delphi Desktop Development • Legacy Systems Support and Modernization • DevExpress Components and UI Development I focus on delivering reliable, high-performance solutions and solving complex database and business application problems.