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I run a fully custom-built e-commerce site and need a developer who can keep it healthy, secure, and evolving. The back-end is mainly PHP, several Python micro-services handle data tasks, and the front-end relies on JavaScript. Because the codebase was written from scratch—not on Shopify, WooCommerce, or Magento—every update requires someone comfortable tracing bespoke logic rather than relying on plug-ins. Typical work you’ll tackle includes bug fixes, performance tuning, adding new product or checkout features, tightening security, and occasionally integrating third-party APIs or payment gateways. I use Git for version control and stage all changes in a test environment before we push live, so familiarity with that workflow is a must. Deliverables will usually fall into one of three categories: • Rapid hot-fixes when something breaks or a security patch is released • Planned feature enhancements that we scope together and roll out in milestones • Monthly housekeeping—log review, dependency updates, and speed audits For each task I’ll provide clear acceptance criteria and expect concise commit messages plus a short changelog. If this stack and rhythm sound comfortable, let’s talk through the first item in the queue.
Project ID: 40476012
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Hi Chris. Bidding here for previously worked 31 hour as agreed. Have to type in another sentence again.
$930 USD in 1 day
7.9
7.9
138 freelancers are bidding on average $1,021 USD for this job

Hi, this looks straightforward at first, but in my experience there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/microlent Let me know if you'd like me to walk you through the plan. ~ Rajesh
$1,125 USD in 7 days
9.4
9.4

Hi — Elias here from Miami. I understand you're looking for a reliable developer to maintain your custom-built e-commerce site. Keeping it healthy and secure is crucial for your business's success. The real challenge often lies in ensuring the platform remains scalable and secure while integrating new features seamlessly. A common issue in custom systems is managing complex workflows and dependencies, which can lead to future headaches if not handled correctly. My approach would focus on establishing a robust maintenance plan that includes regular updates, performance tuning, and security checks. I prioritize stability and maintainability, ensuring the architecture can accommodate future expansion without significant rework. I've worked on similar e-commerce platforms, optimizing performance and implementing security measures that adapt to evolving threats. This experience gives me a solid foundation to understand the intricacies of your system. A few questions to better understand the scope: Q1 – What specific areas of the site are you most concerned about in terms of maintenance? Q2 – Are there any planned feature additions or integrations that we should consider? Q3 – How are user roles and permissions currently managed on your platform? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$1,200 USD in 6 days
8.4
8.4

Hello, I'm a web developer with over 13 years of experience. I've reviewed your project and am confident I can assist you. I have knowledge in PHP, JavaScript, PHP, JavaScript, Python, Troubleshooting, HTML Please send me a message to get started. Thank You
$973.16 USD in 1 day
8.1
8.1

Custom-built e-commerce sites have one sneaky maintenance risk that platform stores don't, when a third-party API you've integrated changes its authentication flow or deprecates an endpoint, there's no plugin update to save you, your checkout or inventory sync just quietly breaks. The fact that your stack requires PHP, JavaScript, and Python together tells me there's likely a layered backend worth mapping properly before touching anything. My approach would be to start with a full audit of your API integrations, Git history, and any performance bottlenecks via profiling before committing to a maintenance rhythm. Within the first week I'd deliver a prioritized issue map covering security patches, dependency risks, and any slow queries or endpoints surfaced during performance tuning, so you'd have a clear picture of what's actually putting your site health at risk. Do you currently have a staging environment where you test changes before pushing to production, or are fixes going straight to live? Best, Salma Noreen
$1,299 USD in 30 days
8.7
8.7

Custom PHP e-commerce maintenance is what I do — comfortable tracing bespoke logic without relying on framework conventions or plugins. On the PHP side: I read through unfamiliar codebases by starting with the routing layer and working inward, so I can isolate a bug or performance bottleneck quickly without touching code that works. For Python micro-services, I've worked with REST API bridges and shared-DB integration patterns — I can follow whichever pattern your architecture uses. Workflow-wise, I work the way you described: test-environment first, clean commit messages, short changelog per PR, no surprises in production. Typical first tasks I'd tackle confidently: security patches (dependency pinning, input sanitisation), slow-query profiling (EXPLAIN-first approach), and checkout edge cases — the kind of bugs that only surface under real load. To get started fast, I'd need: a read-only DB snapshot or staging env, access to the Git repo, and a quick walkthrough of known pain points. Can usually turn around a first fix within 48 hours of onboarding.
$900 USD in 14 days
8.2
8.2

Hi I can help maintain, secure, and extend your fully custom e-commerce platform across PHP backend logic, Python micro-services, and JavaScript frontend workflows. My experience includes custom PHP systems, Python data services, JavaScript debugging, API integrations, payment gateway work, Git workflows, staging deployments, performance tuning, and security hardening. The main technical challenge is safely changing bespoke business logic without breaking checkout, product handling, data processing, or existing customer flows. I would solve this by first tracing the current architecture, testing changes in staging, using clean commits, and documenting each fix or enhancement with a short changelog. For urgent issues, I can inspect logs, isolate the root cause, patch the problem, and verify the fix before production release. For planned enhancements, I can add checkout, product, API, or payment features in a controlled way while protecting database integrity and site stability. I’m comfortable working in custom codebases where disciplined debugging, secure updates, and reliable version control matter more than plugin-based shortcuts. Thanks, Hercules
$1,500 USD in 7 days
7.1
7.1

Hi, I understand this is a fully custom ecommerce platform where stability, maintainability, and careful debugging matter far more than plug-and-play solutions. Since the stack combines PHP, Python microservices, and JavaScript with bespoke business logic, the work requires someone comfortable tracing interconnected systems, optimizing performance, and deploying safely through staged Git workflows. I have experience maintaining custom-built platforms involving API integrations, payment gateways, backend debugging, frontend enhancements, security hardening, and production issue resolution. I’m comfortable working within structured staging/production pipelines with clean commits, concise changelogs, and milestone-based feature rollouts. I can support: • rapid hot-fixes and incident resolution • feature development and checkout enhancements • API/payment gateway integrations • performance tuning and security improvements • monthly maintenance, dependency updates, and log audits Clear communication, reliable turnaround, and clean version-controlled delivery are priorities for me, and I’d be glad to discuss the first task in your queue.
$750 USD in 2 days
7.2
7.2

With a plethora of skills and over a decade of professional experience, I can confidently say that your custom e-commerce site would be in the best hands with me. My strong suit is my proficiency in both frontend and backend development languages such as HTML, JavaScript, PHP along with additional languages like Python and Ruby on Rails, which are absolutely essential for this role. Having developed a range of e-commerce sites from scratch similar to yours, I understand the intricate workings and the importance of bespoke development. The system you've described - specifically relying on Git for version control, running continuous tests in a separate environment before deploying changes - aligns perfectly with my workflow. Additionally, I have extensive knowledge of various APIs including Razorpay, Stripe and PayPal which will definitely come in handy for integrating any payment gateways or third-party services your site may require.
$750 USD in 7 days
7.2
7.2

Hello, With 4 years of experience in PHP and API Integration, I specialize in custom e-commerce maintenance. I understand the requirements of keeping your fully custom-built e-commerce site healthy, secure, and evolving. I am proficient in PHP, Python, JavaScript, troubleshooting, HTML, Git, and API Integration. I ensure bug fixes, performance tuning, security enhancements, and seamless integration of third-party APIs. I follow a structured workflow using Git for version control and staging changes in a test environment before going live. I have reviewed the project details and am confident in delivering a professional solution tailored to your needs. Please connect in chat to discuss this project further. Best regards, Taimoor from Pixels Soft Let's discuss the project in detail through chat.
$800 USD in 7 days
6.7
6.7

Hello! I am a Florida-based senior software engineer with extensive experience in PHP, JavaScript, and e-commerce development. I’ve carefully read your project description about maintaining your custom-built e-commerce site, and I completely understand the importance of keeping it healthy and secure. With over 15 years in the industry, I've successfully managed similar projects, ensuring optimal performance and security. My approach involves structured milestones and clear communication, allowing us to address any challenges proactively. I’ve participated in the Shopify partners program since 2016 and have built numerous Shopify apps and themes. To ensure I align with your expectations, could you please clarify the following questions to help me better understand the project? 1. What specific maintenance tasks do you foresee needing the most attention? 2. Are there any current performance issues or security concerns I should be aware of? 3. Do you have any preferred tools or processes for issue tracking and communication? I'm dedicated to providing a solution that not only meets your needs but also supports your business's growth. Let’s connect and discuss how I can contribute to your project's success. Best, -James
$1,200 USD in 6 days
6.4
6.4

Hi, Your project is exactly the type of long-term development relationship I prefer because it focuses on maintaining and improving a custom platform rather than working within the limitations of off-the-shelf ecommerce systems. I have experience working with custom PHP applications, Python services, JavaScript frontends, API integrations, performance optimization, debugging complex business logic, and Git-based deployment workflows. I'm comfortable tracing bespoke codebases, understanding existing architecture, and making targeted improvements without introducing regressions. Whether the task is an urgent production issue, a security update, a checkout enhancement, a third-party integration, or ongoing maintenance, I follow a structured workflow using staging environments, clear commits, testing, and concise changelogs. I also understand the importance of maintaining stability in a live ecommerce environment where downtime and checkout issues directly impact revenue. The mix of rapid fixes, planned feature work, and monthly housekeeping aligns well with how I typically support growing platforms. I would be happy to review the first item in your queue and provide a practical implementation plan before any development begins. Best, Justin
$1,125 USD in 7 days
6.3
6.3

Hi there, I like how you have outlined your project description with clarity and depth. You are seeking a developer to maintain and enhance a fully custom-built e-commerce platform that uses PHP for the back-end, Python micro-services for data tasks, and JavaScript on the front-end. The project requires someone skilled in navigating bespoke code rather than standard plug-in-driven systems, with responsibilities including bug fixes, performance improvements, security tightening, feature additions, and occasional third-party integrations. Familiarity with Git workflows and staging environments is essential. With extensive experience in full-stack development and maintaining custom e-commerce solutions that involve PHP, Python, and JavaScript integration, I am confident in delivering the reliable, secure, and evolving maintenance you need. My approach emphasizes clean and traceable code changes, thorough testing, and prompt responses to urgent issues or security patches. I am also proficient at working with clear acceptance criteria and generating detailed changelogs and commit messages. I would be happy to discuss your first maintenance item and demonstrate how I can help keep your platform healthy and scalable. Please feel free to reach out so we can begin collaborating.
$1,050 USD in 7 days
6.0
6.0

Hi there, I see you're looking for someone to keep your custom-built e-commerce site secure and well-maintained. With around 10 years of experience in PHP and JavaScript, I can help ensure your platform runs smoothly. Your focus on performance tuning and API integration aligns with my recent projects, where I've optimized functionality and improved load times for similar e-commerce platforms. I understand how crucial it is to maintain a healthy site that can adapt to user needs and market changes. Some similar things I've built include a regional booking platform for a tutoring company, an internal CRM for a property agency, and a React Native field-reporting app. I'm ready to jump in and help keep your site in top shape. Could you please clarify the following questions to help me better understand the project? Q1: What specific maintenance tasks do you prioritize for your e-commerce site? Q2: Are there any particular security measures or protocols you currently have in place? Q3: How do you handle updates or changes to the site’s features and functionalities?
$1,200 USD in 10 days
6.6
6.6

I understand the challenges of maintaining a fully custom e-commerce platform with no off-the-shelf shortcuts. I’ve helped clients with bespoke PHP back-ends and micro-service architectures to quickly isolate and fix bugs, optimize critical flows, and tighten security after audits. In one project, I implemented staged Git workflows and automated test environments to safely push updates without downtime. For your needs, I’d start by reviewing your current staging and deployment setup to ensure smooth rollout and rollback capabilities. Are there existing automated tests for core checkout flows, or would you want help adding those? Also, do you track performance metrics to identify tuning targets regularly? Monthly housekeeping like dependency updates and log reviews is straightforward based on similar ongoing contracts I manage. Rapid hot-fixes and feature milestones fit well into the clear task boundaries you outlined. I’m ready to jump in, review the first ticket you share, and deliver changes with clear commit messages and changelogs aligned to your process.
$1,500 USD in 7 days
6.1
6.1

Hello, I came across your Ongoing Custom E-Commerce Maintenance -- 3 and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in PHP, HTML, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum
$750 USD in 7 days
5.8
5.8

Let's build amazing. I speak fluent custom e‑commerce—PHP backend, Python microservices, and JavaScript frontend—so your bespoke codebase won't scare me like it would a plugin‑addicted developer. Bug fixes, performance tuning, new checkout features, security patches, and third‑party API integrations are my daily bread, and I won't cry when there's no WooCommerce dashboard to click. I live in Git and staging environments, so expect clean feature branches, concise commit messages, and a short changelog before we ever touch production. Rapid hot‑fixes? Done by coffee break. Planned feature milestones? Let's scope and crush them. Monthly housekeeping (logs, deps, speed audits)? I'll keep your site healthier than a marathon runner. Give me clear acceptance criteria and I'll deliver code that works, with a side of transparency. Let's talk through your first ticket—I'm ready to trace your bespoke logic and leave it better than I found it. Dimitar
$1,200 USD in 5 days
5.8
5.8

Hi, This setup is very aligned with the type of systems I’ve worked on. I have experience maintaining custom ecommerce and SaaS platforms built with PHP backends, Python microservices, JavaScript frontends, REST APIs, and SQL/NoSQL databases where understanding the underlying architecture and business logic was essential. I’m comfortable handling: • rapid hotfixes and production debugging • checkout and product feature development • performance tuning and query optimization • security hardening and dependency maintenance • payment gateway and third party API integrations • Git based staging and deployment workflows I also work with structured release practices including clean commits, concise changelogs, and controlled staging validation before production deployment. Happy to review the first task in the queue and start from there.
$1,125 USD in 7 days
5.9
5.9

✪ Custom E-Commerce Maintenance & Development ✪ Hello I can support and maintain your fully custom-built e-commerce platform with strong experience in PHP back-end systems, Python micro-services, and JavaScript front-end development. Comfortable working with bespoke architectures, debugging complex logic, improving performance, and deploying secure updates through Git-based workflows and staging environments. ✪ Past Work ✪ https://www.freelancer.com/u/KahlonCreatives ✪ What I do ✪ • Handle urgent hot-fixes and security patch deployments • Develop custom features across PHP, Python, and JavaScript stacks • Optimize performance, scalability, and system stability • Work efficiently with Git workflows, staging, and changelog tracking ✪ Deliverables ✪ • Clean, tested code updates with concise commit messages • Stable feature enhancements delivered in milestones • Security updates and dependency maintenance • Performance audits and system health improvements • Reliable long-term technical support for your platform ☎ Let's discuss and start ☎ Thankyou Jatinder
$750 USD in 5 days
5.8
5.8

Hello, I’m experienced with maintaining and scaling fully custom e commerce platforms built with PHP Python microservices and JavaScript I can handle rapid bug fixes performance optimization security hardening API integrations and new feature development while working safely through Git based staging workflows I write clean maintainable code with concise commits clear changelogs and careful testing before deployment I’m comfortable tracing complex custom logic without relying on plugins and can support both urgent fixes and long term platform improvements I’m ready to discuss the first task in your queue and start immediately
$1,125 USD in 7 days
5.5
5.5

With a solid foundation in PHP and JavaScript, coupled with my intimate knowledge of using Python microservices to handle critical data tasks, I'm 100% confident I can maintain and improve your fully custom e-commerce site. I relish the chance to unravel bespoke logic instead of relying on plug-ins seen with CMS platforms like Shopify, WooCommerce or Magento. Having used Git for version control for years, your workflow feels like home. My penchant for thoroughness extends to produce concise commit messages and keeping accurate change logs that you require. I never compromise on quality when it comes to code, dividing our deliverables into three categories aligns beautifully with my work process. Since a critical aspect of the project is the ability to implement changes from testing to live environments, my experience as a Web & App Developer aligns well. Notably, my proficiency in delivering SEO-friendly builds ensures maximum visibility and performance optimization for your site. Committing to this project means partnering with a dedicated, meticulous professional who will support you every step of the way - and beyond - all while championing your business goals forcefully.
$750 USD in 3 days
5.5
5.5

Pottstown, United States
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