Database Development Jobs

Database Development is the process of creating, maintaining, and organizing digital systems used to store, manipulate and access information. It’s the foundation of any IT project and is essential in the development of modern software applications. Database Development Experts are knowledgeable professionals skilled at setting up custom database designs while maintaining control, accuracy and organization.

From basic website to complex applications where critical information needs to be stored securely, Database Developers ensure all data is accessible while being kept secure from potential threats. Database Developers craft databases that allow efficient access to data in a simplified way, taking into account both evolution and scalability of the data structures. A skilled Database Developer would also know how to set up backups, disaster recovery protocols and can auditing of the system for any signs of misuse or abuse.

Here's some projects that our expert Database Development Experts made real:

  • Creating tailored data management systems
  • Developing databases for end users with forms, queries, reports etc.
  • Developing mobile applications connected to a database
  • Migrating existing databases while mapping data
  • Extracting relevant contact information from large databases
  • Designing efficient ERP models
  • Deploying senior developers for more complicated projects

It's clear that Database Development is an integral piece for technology projects as it allows for efficient storage of important information as well as its later usage in tandem with applications or other digital systems. Expert Database Development Freelancers will ensure accuracy in all their work as well as skillset expansion through different strategies such as scalability or backups setup. On Freelancer.com you can find these types of experts that will craft your project exactly how you need it without sacrificing quality or budget. Invite one to join your project today and see how you can truly benefit from the aid of these professional freelancers!

From 153,607 reviews, clients rate our Database Development Experts 4.9 out of 5 stars.
Hire Database Development Experts

Database Development is the process of creating, maintaining, and organizing digital systems used to store, manipulate and access information. It’s the foundation of any IT project and is essential in the development of modern software applications. Database Development Experts are knowledgeable professionals skilled at setting up custom database designs while maintaining control, accuracy and organization.

From basic website to complex applications where critical information needs to be stored securely, Database Developers ensure all data is accessible while being kept secure from potential threats. Database Developers craft databases that allow efficient access to data in a simplified way, taking into account both evolution and scalability of the data structures. A skilled Database Developer would also know how to set up backups, disaster recovery protocols and can auditing of the system for any signs of misuse or abuse.

Here's some projects that our expert Database Development Experts made real:

  • Creating tailored data management systems
  • Developing databases for end users with forms, queries, reports etc.
  • Developing mobile applications connected to a database
  • Migrating existing databases while mapping data
  • Extracting relevant contact information from large databases
  • Designing efficient ERP models
  • Deploying senior developers for more complicated projects

It's clear that Database Development is an integral piece for technology projects as it allows for efficient storage of important information as well as its later usage in tandem with applications or other digital systems. Expert Database Development Freelancers will ensure accuracy in all their work as well as skillset expansion through different strategies such as scalability or backups setup. On Freelancer.com you can find these types of experts that will craft your project exactly how you need it without sacrificing quality or budget. Invite one to join your project today and see how you can truly benefit from the aid of these professional freelancers!

From 153,607 reviews, clients rate our Database Development Experts 4.9 out of 5 stars.
Hire Database Development Experts

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    30 jobs found

    We are building ReadyFlatz – a smart real estate platform that helps buyers find the most relevant properties using a structured matching system (not traditional search). We are NOT building a typical listing website like MagicBricks or 99acres. We need a developer/team to build backend APIs, database, and matching logic. Core Features: User System Login via mobile number + password User dashboard to track buying journey Buyer Preference Engine Capture structured inputs: Budget Location Property type Purpose (investment/self-use) Timeline Loan requirement Matching Algorithm (Core USP) Score properties based on: Budget fit Location match Configuration match Investment potential Return top matches (not all listings) Property Database Admin panel to add/edit properties Fields: Price, lo...

    $1217 Average bid
    $1217 Avg Bid
    97 bids

    The goal of this system is to provide real-time visibility and control over every customer project, from sales confirmation to final delivery and warranty. This is not a reporting tool. It is an operational decision system that allows management to immediately identify: – where each project is in the pipeline – which department is responsible – which projects have delays or risks – what action must be taken CORE PRINCIPLE Each project flows through a fixed sequence of departments (stages). A stage is only activated when the project officially reaches that department. Before that, the stage remains blank (no status, no color). Each stage has its own: – Trigger (handover date) – Planned date – Actual completion – Status (auto-calculated) &ndas...

    $36 Average bid
    $36 Avg Bid
    26 bids

    I need a compact MS-Access solution, backed by MySQL and driven by Visual Basic code, that tidies up the way my small business handles information. Right now our data is scattered; the goal is one place where staff can store, find, and update records without wrestling with spreadsheets or duplicate entries. What I’m picturing • A clean Access front-end with intuitive forms and search screens • Solid table design in MySQL—relationships, indexes, and constraints set correctly for fast, reliable data storage and retrieval • Visual Basic routines that automate common actions (open-form buttons, record validation, import/export helpers) so staff can stay focused on work instead of wrestling with the database Deliverables 1. Access front-end (.accdb) link...

    $121 Average bid
    $121 Avg Bid
    43 bids

    We are looking for an experienced Snowflake-focused Data Engineer / BI Consultant to provide job support (1–2 hours per day) for a client working on data quality and BI initiatives. The primary focus is on identifying data quality issues and supporting end-to-end resolution in collaboration with business data stewards, data engineering, and reporting teams. Key Responsibilities: Identify and troubleshoot data quality issues in Snowflake Support end-to-end resolution of data discrepancies Work closely with data stewards, engineering, and reporting teams Assist in building a BI Quality Assurance Dashboard (Power BI) Enable proactive monitoring of data integrity Support implementation of data governance and quality processes Required Skills (Must Have): Strong hands-on experience i...

    $10 / hr Average bid
    $10 / hr Avg Bid
    11 bids

    I have several Excel-based spreadsheets that hold all of my customer records, and I need this information migrated into a clean, structured database/CRM environment. The job involves extracting every row from the existing XLS/XLSX files, standardising field names, removing duplicates, resolving obvious data-quality issues, and loading the final dataset into the destination I will specify once the mapping is confirmed. You will receive: • The original Excel files (multiple workbooks, mixed layouts). • A field-mapping template that shows where each column must end up. I expect: • A script or repeatable process (Python, Power Query, ETL tool of your choice) that performs the transformation. • A validated target data file or direct import into the agreed databas...

    $357 Average bid
    $357 Avg Bid
    16 bids

    I need a Backtesting framework to be implemented in python per forllowing requirements. 1. I have a data mart in AWS that has all the needed data for to execute the business logic of my Strategies. 2. Same Datalake also includes the table constructs needed to store backtest output. 3. I will also provide the business logic in pseudo kind of code. 4. Need someone with experience in Duck DB to load all the data in-memory , execute backtest and load the backtest input and output dataset in iceberg tables. 5. Some one with Montecarlo experience would be preferable, since various combinations of inputs need to be generated for multiple iterations of Backtest. Project has to be delivered in the following milestones: 1. Python skeleton code for loading data from the mart into Duck DB , Cre...

    $284 Average bid
    $284 Avg Bid
    14 bids

    I need a Backtesting framework to be implemented in python per forllowing requirements. 1. I have a data mart in AWS that has all the needed data for to execute the business logic of my Strategies. 2. Same Datalake also includes the table constructs needed to store backtest output. 3. I will also provide the business logic in pseudo kind of code. 4. Need someone with experience in Duck DB to load all the data in-memory , execute backtest and load the backtest input and output dataset in iceberg tables. 5. Some one with Montecarlo experience would be preferable, since various combinations of inputs need to be generated for multiple iterations of Backtest. Project has to be delivered in the following milestones: 1. Python skeleton code for loading data from the mart into Duck DB , Cre...

    $3995 Average bid
    $3995 Avg Bid
    14 bids

    Fuel Management Dashboard – Proposal and Scope of Work This proposal defines the scope of work for the design, development, and implementation of a comprehensive Fuel Management Dashboard platform integrating real-time IoT and OEM server data for effective monitoring, control, and decision-making. The system aligns with existing deployments similar to K92 and Hi-Lift operations. SQL is what we have used in the past. We are looking to be migrating from our current dashboard service provider and therefore would like to go from scratch but to keep the same logic in an ugraded visual and functional quality. 1. Overview The Fuel Management Dashboard provides a unified, real-time view of fuel operations across all sites. It consolidates data from IoT-enabled devices, ATG systems...

    $23 / hr Average bid
    $23 / hr Avg Bid
    125 bids

    Task: Linking Auto Parts to Vehicles There is a product database (~20,000 items), which includes auto parts and related products (washer fluids, car chemicals, etc.). Main Goal: Implement a system to determine compatibility between auto parts and vehicles based on international part numbers (Part Number / OEM / article). Input Data: Product database (~20,000 items) Each product has an international part number (OEM / Part Number / article) Scope of Work: For each auto part: Determine which vehicles it fits (Make, model, year, modification — if possible) Build a relationship: Part → list of compatible vehicles Deliver as: table (CSV / Excel), or database structure (e.g. PostgreSQL), or integration for a website (e.g. OpenCart) Expected Result: Data or system where each par...

    $61 Average bid
    $61 Avg Bid
    28 bids

    I need ongoing, hands-on help with DBT. As a beginner, my biggest hurdle is getting a clean project up and running and then writing reliable SQL for daily transformations that will run against Snowflake. Here’s what I’m hoping you can guide me through: • Writing and optimizing transformation SQL inside models, including incremental logic, tests, and documentation • Ad-hoc troubleshooting in my existing pipelines so I understand why something fails and how to fix it next time Most of the work will be pairing sessions—screen-sharing while we walk through real tickets from my day job—so strong teaching skills are as important as technical depth. If you’re confident with DBT and Snowflake and enjoy mentoring, let’s talk and set up our fi...

    $234 Average bid
    $234 Avg Bid
    14 bids

    I’m planning a new natural-language-processing platform powered by large language models and I need an experienced AI architect to lay down a solid, future-proof technical blueprint. Your role is purely architectural—you won’t be asked to train or fine-tune models right now, but you will decide how every component should fit together so that development can move ahead smoothly once the plan is approved. Here’s what I’m expecting to receive from you: • A complete system architecture diagram (high-level and detailed views) highlighting data flow, model hosting, orchestration, and integration touch-points with existing services and APIs. • Technology stack recommendations covering model serving frameworks (e.g., Hugging Face, Vertex AI, Azure OpenAI...

    $34 / hr Average bid
    $34 / hr Avg Bid
    60 bids

    I have several production PL SQL scripts that are starting to show their age: execution times have crept up and they are consuming more CPU and memory than I am comfortable with. The primary focus of this project is therefore PLSQL itself, not application-level logic or UI work. What I need from you is a careful optimisation of the existing codebase. The goal is two-fold—raise overall performance and cut back on resource usage—without changing the functional output in any way. You will be working with code that is already in use, so a light-touch, incremental approach that can be verified against current results is essential. Deliverables I expect • Revised PL SQL scripts ready for drop-in replacement • A short before/after performance summary (timings and resourc...

    $10 / hr Average bid
    $10 / hr Avg Bid
    16 bids

    I need a comprehensive database of hotels in New South Wales. The database should include: - Hotel name - Address - Phone number - Email address The information should be accurate and up-to-date. Ideal skills and experience: - Experience in data collection and database creation - Attention to detail - Ability to deliver clean, organized data in a database format

    $65 Average bid
    $65 Avg Bid
    56 bids
    Backtesting Framework
    4 days left
    Verified

    I need a Backtesting framework to be implemented in python per forllowing requirements. 1. I have a data mart in AWS that has all the needed data for to execute the business logic of my Strategies. 2. Same Datalake also includes the table constructs needed to store backtest output. 3. I will also provide the business logic in pseudo kind of code. 4. Need someone with experience in Duck DB to load all the data in-memory , execute backtest and load the backtest input and output dataset in iceberg tables. 5. Some one with Montecarlo experience would be preferable, since various combinations of inputs need to be generated for multiple iterations of Backtest. Project has to be delivered in the following milestones: 1. Python skeleton code for loading data from the mart into Duck DB , Cre...

    $3836 Average bid
    $3836 Avg Bid
    59 bids

    I need to reorganize my digital filing system into a tagged and searchable database. Currently, I use a digital system, and I want to improve accessibility and efficiency. Requirements: - Implement a tagged, searchable database - Organize spreadsheets and structured data Ideal Skills and Experience: - Experience with database management and tagging systems - Proficiency in handling spreadsheets and structured data - Strong organizational skills and attention to detail Looking forward to your bids!

    $521 Average bid
    NDA
    $521 Avg Bid
    44 bids

    Project Title: Build Internal Employee Portal with Document Automation (Accounting Firm) Project Description: We are an accounting and advisory firm looking to build a secure internal employee portal within our website. The purpose of this portal is to streamline internal processes, improve team efficiency, and automate the preparation of client engagement documents. Key Features Required: 1. Secure Employee Login Portal Individual staff login access Role-based permissions (admin vs staff if possible) Clean, user-friendly dashboard 2. Training Hub Ability to upload and organise training videos Categorised content (e.g. onboarding, compliance, advisory) Easy navigation for team members 3. Document & Proposal Automation (Core Requirement) Convert an e...

    $1595 Average bid
    $1595 Avg Bid
    146 bids

    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 repo...

    $66 Average bid
    $66 Avg Bid
    17 bids

    I’m a current BCA student who is comfortable with most of the course load, but I’m finding that my understanding of Database Management is not where it needs to be for upcoming exams and practical work. I’m looking for ongoing academic tutoring that will help me move from memorising theory to confidently designing and querying real-world databases. We’ll meet online, screen-share, and work through topics such as relational modelling, normalisation (1NF-BCNF), SQL query optimisation, stored procedures, indexing, and transaction control. I want each session to blend short concept explanations with hands-on walkthroughs in tools like MySQL Workbench, Oracle SQL*Plus, or even PostgreSQL if that’s your preference, so I can immediately test what I learn. By the en...

    $240 Average bid
    $240 Avg Bid
    13 bids

    I’m in the start of a performance-focused data-migration effort that moves our current datasets into Snowflake, with Geneva and straight SQL powering the pipelines. To keep momentum, I need someone who can help on the hands-on analyst work while thinking like a Business Data Analyst. What I still have to finish centres on two areas: • Data extraction and transformation – mapping existing schemas, writing efficient SQL, and using Geneva/Snowflake utilities to cleanse and reshape data so downstream analytics run faster. • Data loading and validation – building repeatable load jobs into Snowflake, designing row-level and aggregate checks, and documenting reconciliation so stakeholders can trust the numbers. Acceptance criteria • Clean, reusable ETL scri...

    $6 / hr Average bid
    $6 / hr Avg Bid
    5 bids

    Project Description: ATTENTION: We are looking for a Tier-1 Android Developer to build a high-performance earning application from scratch. This is our second major project; the previous platform "Kamyabi Cash" is already in the pipeline, and we are now expanding. We only hire experts who understand complex logic, high-level security, and seamless API integrations. 1. Advanced Security & Anti-Fraud (Non-Negotiable): Device Fingerprinting: Strictly One Device = One Account. Automatic permanent ban for Clones, Parallel Space, or Multiple Accounts. Military-Grade VPN/Proxy Detection: 100% protection against all VPNs, VPS, and Emulators. OTP Verification: Secure Firebase/WhatsApp OTP for profile changes and withdrawals. Root/Jailbreak Detection: App must not run on rooted devices...

    $433 Average bid
    $433 Avg Bid
    31 bids

    أدير خط ​واتساب على الرقم ‎+212706262005‎ وأحتاج إلى نظام ذكاء اصطناعي يرد على رسائل الاستفسارات العامة بشكل فوري وباللغة العربية فقط. هدفي هو أن يتولى هذا “الموظف” الرقمي جميع المحادثات الروتينية ويقدّم إجابات طبيعية، دقيقة، ومحافظة على هوية علامتي. ما أحتاجه تحديداً: • إعداد كامل لحساب ‎WhatsApp Business‎ أو تكامل عبر ‎Cloud API‎/‏Twilio بحيث يعمل الحل على رقمي الحالي. • نموذج لغة (يفضّل ‎GPT‎ أو ما يعادله) مُدرَّب أو مُهيأ ليجيب تلقائياً على الأسئلة الشائعة التي سأزوّدك بها، مع إمكانية توسيع قاعدة المعرفة لاحقاً. • لوحة تحكم مبسّطة لأضيف ردوداً أو أعدّل البيانات متى شئت. • تقارير مختصرة عن عدد الرسائل، أوقات الاستجابة، ومستوى رضا المستخدمين. قبول العمل يتم عندما: 1. أرسل رسالة اختبار من هاتف آخر وأتلقى ردّاً ف...

    $20 Average bid
    $20 Avg Bid
    10 bids

    I'm looking for a skilled mobile app developer to create a database specifically for graded Pokemon cards. The app should primarily serve the function of creating a detailed database for these specific cards. The database must include: - Graded cards certifications - used for individuals to upload their own certs that were stolen to be viewed by others to make sure they are not purchasing stolen goods and can contact the individual that reported it stolen on the app - Ideal skills and experience: - Mobile app development expertise - Experience with database integration - Knowledge of Pokemon card grading systems - UI/UX design skills for a user-friendly interface Please provide examples of similar work done.

    $2743 Average bid
    $2743 Avg Bid
    145 bids

    I need an experienced PostgreSQL expert to resolve performance degradation issues during peak usage times. Peak usage involves: - High volume of data writes - Large number of read queries - Complex transactions/operations Ideal skills and experience: - Expertise in PostgreSQL performance tuning - Experience with high-volume data operations - Strong understanding of complex queries and transactions - Ability to identify and resolve bottlenecks Please provide a detailed approach and relevant experience in your bids.

    $73 Average bid
    $73 Avg Bid
    15 bids

    Field Trip Database Project Summary Thank you for your interest in developing a Microsoft Access Database for our Field Trip programming. The Center for Science Teaching and Learning (CSTL) is a 501(C3) organization that delivers educational science programs for the public, schools, and students. One feature of our programs is Field Trips. Field Trips consist of schools signing up to visit. CSTL is looking to hire a Freelancer that can create a robust database that can function to streamline the booking and invoicing. The goal is to create a staff friendly User Interface that allows the user to select the Type of Field Trip, Create a Balance Sheet, Dynamically Send A Confirmation Invoice, and Finally Place the Field Trip in a Office 365 Calendar . CSTL currently offers 6 field trips...

    $254 Average bid
    $254 Avg Bid
    24 bids

    I need a fresh, well-researched database of U.S. companies that sit in the 50-to-250 employee bracket across industries but exclude the following industries - technology, retail, ecommerce and public administration (government). For every company you source, I require the following fields completed with up-to-date and verifiable information: • Company name and website • Confirmed employee range (must fall between 50 and 250) • CEO, Founder, or Promoter full name • Their direct work email and phone number (no generic “info@” lines or head-office numbers) Please deliver the list in Excel with one row per company and clear column headers. Accuracy is critical: I will spot-check a sample, and any bounced emails or wrong phone numbers will need replaci...

    $13 Average bid
    $13 Avg Bid
    7 bids

    I’m rolling out a franchise-wide system that lets every branch run daily operations from a single login, whether staff are on a browser at the counter or using a companion app on the go. The core build must include live order tracking, real-time inventory controls, full customer profiles with purchase history, and a super-admin panel that lets headquarters oversee every location’s metrics and permissions. The web portal and the iOS/Android app should share the same backend so data stays perfectly in sync. Clean, intuitive UI/UX is a priority because many of our attendants are not tech-savvy; think simple dashboards, barcode/QR scanning for garments, and push/email/SMS status updates for customers. Please show examples of past work where you delivered comparable multi-platform...

    $313 Average bid
    $313 Avg Bid
    80 bids
    10K Indian Laundry Contacts
    1 hour left
    Verified

    I need a clean, fully-verified database of 10,000 laundry service shops drawn from all major Indian cities. Every row must contain only three fields—shop name, mobile number, and email address—nothing more, nothing less. Accuracy is critical, so I will reject duplicates, generic “info@” emails, landlines, or numbers that fail a quick WhatsApp check. Please deliver the final list in a single Excel or CSV file with clearly labeled columns (Name | Mobile | Email). A brief sample of 50–100 rows will help me test validity before we move to the full hand-off. When you respond, point me to past work that shows you have already sourced or scraped large-scale Indian contact data; that track record will guide my hiring decision.

    $133 Average bid
    $133 Avg Bid
    19 bids

    I need a clean, up-to-date database containing 100,000 United States companies, each paired with its current President/CEO. The websites must be the primary and only source for every data point. Speed matters, so I’m aiming to receive the finished file ASAP. To make it crystal clear, here is what I expect to find on every row of the spreadsheet: • Company name • Company website URL • CEO’s full name (the current head, not a past executive, president, owner, or any other C-level title) If you can also capture a verified corporate email for the CEO, that would be a welcome bonus, but the core requirement remains name and website accuracy. I will run random spot checks to confirm that each CEO listed is indeed the present leader as shown on the company&rsquo...

    $220 Average bid
    $220 Avg Bid
    31 bids

    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.

    $21 / hr Average bid
    $21 / hr Avg Bid
    11 bids

    Necesito trasladar información de ventas que hoy vive en una base de datos MongoDB hacia una hoja de cálculo bien estructurada. Proporcionaré las credenciales de acceso y las colecciones exactas que debes consultar. Lo que espero: • Conectarte a MongoDB y extraer los campos indicados sin alterar su contenido. • Crear o actualizar una hoja de cálculo (Excel o Google Sheets, según prefieras) con las mismas columnas, ordenadas y con encabezados claros. • Verificar que los totales y registros coincidan con los de la base de datos antes de entregarme el archivo. Valoraré que puedas automatizar el proceso con un pequeño script para futuras exportaciones, pero el entregable principal es la hoja de cálculo completa ...

    $12 / hr Average bid
    $12 / hr Avg Bid
    22 bids

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