Budget: 26999 UAH Deadline: 45 days
Good day
we will perform quality
all calculations after discussing the details
Budget: 27000 UAH Deadline: 14 days
Good day!
My name is Valeriy, I represent the EchoCode team. I have reviewed your project regarding the development of a back-office system for working with a large number of leads — we would be happy to help implement this task.
We have experience in developing backend systems and CRM/admin panels: we design stable architecture, optimize databases and queries, work with large volumes of data and API integrations. We can also implement a user-friendly interface for effective team collaboration.
Budget: 27000 UAH Deadline: 7 days
Hello. I have been working with Node.js for over 8+ years. I am ready for collaboration. Please contact me.
Budget: 26999 UAH Deadline: 10 days
Good day.
I have experience in developing backend systems in PHP / Laravel, including projects with a large amount of data (CRM, lead processing systems, admin panels). I have worked on database design, SQL query optimization, and building a stable backend architecture for high load.
Main stack:
PHP (Laravel)
MySQL / PostgreSQL
REST API
Query and index optimization
Redis / task queues (if needed)
Docker / Git
I also have experience integrating the backend with the frontend part (API for React / Vue).
I can join the project, help with the architecture and implementation of the backend office for working with a large volume of leads.
I would be happy to discuss the details:
what approximate volume of leads is expected
the main functionality of the backend office
whether there is already a technical specification or prototype of the system.
Budget: 27000 UAH Deadline: 12 days
Hello, I cannot say where I worked, but I have experience with legacy systems and high load with dozens of visitors per month. I also managed to work with CRM and I created my own small projects and supported a medium-sized one for some time. On the front end - layout +, Vue and Native +-, React needs to be learned.
Budget: 27000 UAH Deadline: 30 days
Good day
Are there any prototypes? What is this and what should it be?
Laravel (PHP) developer with 8 years of experience
If this is just an admin panel, I can do it.
Budget: 27000 UAH Deadline: 30 days
Hello.
I am a backend developer, working with PHP since 2016.
Projects:
reibert.info — a large online platform with a forum and auction.
Working with large tables, optimizing SQL queries, indexes, caching, refining module logic.
knifemaker.com.ua — an e-commerce project.
I am ready to discuss the architecture of the back office, the database structure, and system requirements.
Budget: 27000 UAH Deadline: 30 days
Good day!
I have developed and supported several CRM systems for working with leads specifically on Laravel.
Feel free to contact me, I will be happy to collaborate.
Budget: 27000 UAH Deadline: 25 days
Hello! I have worked with Laravel systems with millions of records, so I know how to create a stable back office.
Databases: I optimize complex queries and the database structure so that lead filtering works instantly.
Architecture: I use Service Layer and queues (Redis) to ensure that data is not lost even under heavy loads.
Experience: I implemented similar logic in https://freelancehunt.com/showcase/work/savosh-advocate-agency/1845087.html, where I ensured stable operation with a large array of data.
Bonus: As a bonus, I will set up Sentry for free so that you can immediately see all errors.
Budget: 27,000 UAH. Deadline: 25 days.
Do you have a ready database schema, or do we need to design it from scratch?
Budget: 27000 UAH Deadline: 1 day
Hello! I am interested in your project. I have extensive experience in:
📊 Data processing: working with databases, structuring and analyzing information, automating the processing of large volumes of data, import/export and validation;
🤖 Automation and emulation of user actions; development of bots of varying complexity;
⚡️ Asynchronous and multithreaded parsing: collecting and processing data with performance optimization;
🔍 OCR and text search: recognition and structuring of information;
🖼 Media processing: working with images and multimedia;
🖥 Software development, desktop applications, system services and utilities;
📱 Mobile development: native and cross-platform applications;
🌐 Working with APIs and third-party services: integration, automation, and data exchange;
🗣 Translation and text processing: automation of translation, working with language models and text analytics;
🤖 AI/LLM solutions: integration and use of artificial intelligence, working with language models and automating intelligent processes.
I will complete the work quickly and efficiently. Contact me to discuss the details and deadlines of the project!
Budget: 27000 UAH Deadline: 30 days
Good day!
I am interested in your project for developing a back office system for working with a large number of leads. I have been developing backend systems in PHP / Laravel for over 8 years and have experience in creating CRMs, admin panels, and systems for processing large volumes of data.
I have experience in developing:
• CRMs and lead management systems
• backend panels for sales and marketing departments
• systems with a large number of records in the database
• optimization of SQL queries and database structure
• task processing through queues (Queue / Jobs / Redis)
In similar projects, I pay special attention to:
proper design of the database structure
indexing and optimization of queries
stability of system operation under heavy loads
building a clear admin panel for working with leads
scalability of the system
Technologies I work with:
Laravel
MySQL / PostgreSQL
Redis
REST API
Docker
If needed, I can also assist with the frontend part (Blade / React / Livewire).
I would be happy to discuss the project details and propose an optimal system architecture.
Budget: 27000 UAH Deadline: 10 days
Hello! I will complete your task quickly and efficiently. I work with Laravel and frontend. I have worked with big data in an ERP system.
My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be happy to collaborate with you!
Budget: 27000 UAH Deadline: 20 days
Good day, Kirill!
I am a FullStack developer with over 5 years of experience working with PHP / Laravel/*Blade/Vue/Inertia. I am engaged in the development of backend systems, admin panels, and internal services, where proper architecture, working with large volumes of data, and query optimization are important.
I would be happy to discuss the details of the project.
Budget: 27000 UAH Deadline: 7 days
Hello! 🚀
I am a backend developer focused on PHP / Laravel and system design where there is a lot of data and high stability requirements.
Briefly about my experience:
• 🔹 Laravel 8/9/10 – modular architecture, multi-tenant, REST API, queues, notifications, jobs, events.
• 🔹 Large volumes of data:
• designing database schemas (MySQL / PostgreSQL), normalization, indexes, partitioning;
• optimizing complex SELECTs, using EXPLAIN, caching (Redis), denormalized tables for reports;
• importing/exporting large arrays (millions of rows) with memory and execution time control.
• 🔹 Lead management / CRM-like systems – working with leads, statuses, funnels, roles, access rights, action logging.
• 🔹 Frontend as a plus: basic experience with Vue / Blade / Tailwind — I can support/finalize the admin panel without involving a separate frontend developer.
I am ready to help build a back office for lead management with a focus on:
• a well-thought-out database structure;
• a stable backend architecture;
• the ability to scale and further develop.
We can discuss the details of the technical specifications and the current state of the project — I will suggest the optimal approach to implementation. 🚀
Budget: 27000 UAH Deadline: 1 day
Good day!
I have extensive experience in backend development using PHP / Laravel, including for systems with large volumes of data, complex business logic, database structure design, query optimization, and building stable server architecture. I have worked with CRMs, admin panels, application processing systems, and services where performance, scalability, and reliable operation under load are critically important. I also have practical experience in refining the frontend part when necessary for the comprehensive implementation of the project. I suggest moving to personal messages.
Budget: 27000 UAH Deadline: 14 days
Hello
I have experience with something similar, job boards, job traffic, there is also a large volume of data and essentially leads.
Write to me, we will discuss the details, I can send my CV as well.
Budget: 27000 UAH Deadline: 21 days
Hello!
I have been working with PHP/Laravel for over 10 years and specialize in CRM/lead systems and back offices, where the correct data model, optimized queries, and stable architecture for a large volume of leads are important. In high-load projects, I use a well-thought-out database schema (indexes, denormalization where necessary), caching, queues, distributing heavy operations to workers, as well as MySQL optimization (chunking, pagination, avoiding N+1, analyzing EXPLAIN).
I am ready to participate in the development of a back office for a lead management system, help with the design of architecture, API, modules for processing large datasets, and, if necessary, connect to the frontend part on Vue.js.
Write to me in private messages, and I will briefly tell you about relevant cases with large volumes of data and suggest a collaboration format.
Best regards, Mykola
Budget: 27000 UAH Deadline: 20 days
My partner and I (I handle the Backend, he handles the Frontend) have been working together for 4 years. My main profile is Laravel and building fault-tolerant systems.
Our experience with big data:
• Database design: I have experience working with tables of 10M+ records. I use indexing, denormalization where appropriate, and optimization of complex SQL queries (Eloquent is convenient, but for logs and analytics, we often write native Raw queries).
• Queues and background tasks: For real-time lead processing, we set up Redis + Laravel Horizon. This allows the system not to "lag" during mass imports or mailings.
• Architecture: We build modular systems (Service Pattern) that are easy to scale and maintain after a year or two of development.
Why us:
• Full-stack approach: I take care of PHP/Laravel/PostgreSQL, my partner handles React/Vue. This ensures that the back office will be not only powerful but also user-friendly for managers.
• Portfolio: Our projects with complex logic: hyperfi.tech, espressolab.com.ua, hudi.com.ua.
• Conditions: We work quickly, are always in touch, and write clean code that is not embarrassing to hand over to other developers.
Budget: 27000 UAH Deadline: 10 days
Good day, I have 7 years of experience in development. I offer a stack - Docker, Symfony, React. I have experience working with a database with several million records.
Budget: 27000 UAH Deadline: 4 days
Good day. I am ready to complete this project as I have extensive experience in application development.
Budget: 27000 UAH Deadline: 30 days
Hello!
I am a Full-Stack Software Engineer with over 7 years of experience in developing websites, SaaS solutions, complex web platforms, and MVPs for startups - from idea and architecture to production and support.
I work not only as a developer but also with a focus on business logic, scalability, and long-term support of solutions. My portfolio includes examples of implemented projects of varying complexity.
Technology stack:
PHP (Laravel, Symfony, Yii2),
Frontend: JavaScript (Vue.js, React.js), HTML5, CSS3,
Databases: MySQL, PostgreSQL.
Regarding timelines and costs - at this stage, it is difficult to accurately assess them without clarifying the requirements. To form a reasoned estimate, it is usually necessary to understand:
- project goals;
- key functionality;
- expected load and integrations;
- priorities (quick launch vs scaling).
I suggest starting with a brief clarification of requirements or a call / correspondence - after that, I will be able to provide a realistic estimate on timelines, budget, and implementation options.
I would be happy to discuss the details.
Budget: 27000 UAH Deadline: 7 days
Hello!
We have significant experience in development using PHP / Laravel. We have worked on projects of varying complexity: CRM and ERP systems, backend for mobile applications, as well as web platforms with functional admin panels. We also have experience working with large volumes of data — designing database structures, optimizing queries, and building stable backend architecture.
If needed, we can also connect to the frontend part.
It would be interesting to learn more details about the project. This will help better understand the requirements, assess the scope of work, and provide an estimated time and cost evaluation.
Budget: 27000 UAH Deadline: 10 days
Good day.
I work with PHP / Laravel, have experience in developing admin panels and back-office systems with large volumes of data (leads, orders, catalogs). I focus primarily on the correct structure of the database, indexing, query optimization, and stable architecture so that the system functions properly under heavy load.
I can also connect to the frontend part (Vue / Nuxt) if it is necessary to refine the interface or API.
Write to me in private messages, tell me more about the system and the volume of data — I will take a look and suggest how to best build the architecture and the timelines for the work.
Budget: 27000 UAH Deadline: 15 days
Good day
My name is Dmytro, from the company King Kong Lab.
We have experience in developing the backend part using PHP / Laravel for data management systems, CRM, and internal business tools. We have worked on projects with large volumes of data where proper database architecture, query optimization, and system stability are important.
We are engaged in designing database structures, building APIs, optimizing complex queries, caching, and scaling systems. We also have experience with queues, processing large data arrays, and building backend logic for systems where speed and stability are crucial.
If necessary, we can also assist with the frontend part (Laravel + Vue / React) to ensure the integration of the interface with the backend works correctly.
We are ready to discuss the details of your lead management system and propose an optimal implementation architecture.
Budget: 27000 UAH Deadline: 12 days
Hello. I have experience in developing back offices with high loads and I am confident that I can create a stable architecture for your lead management system. I have worked with large volumes of data, so I know how to properly design databases and optimize queries. Do you have in mind whether you will need integrations with APIs or payment systems? I am also curious if there are already ready requirements for the frontend, as I can handle that as well if needed. In terms of deadlines, I plan for 10-12 days of work considering possible adjustments. My price for this project starts at 30,000 UAH due to the complexity of the task and the volume of work.
