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I’m looking for an experienced developer (at least four years hands-on) who can sit with our product team in the NCR office for the next six months, Monday through Friday, 9 AM – 5 PM. The work centres on a large-scale web application already in production. Your day-to-day focus will be split between building new modules that the business team has specced out and keeping the current codebase healthy—refactoring, fixing bugs and making incremental performance gains. We run a lean stack, so deep knowledge of core PHP and core Java is more valuable to us than framework expertise; if you can read, write and optimise plain PHP/Java, you’ll fit right in. A typical week will involve: • Scoping and coding new features from user stories supplied by the product owner • Reviewing legacy code, identifying hot spots and patching them before they escalate • Committing well-documented code to our Git repo and walking the QA engineer through your changes Because you’ll be onsite, strong communication skills matter as much as technical ability—you’ll brainstorm directly with UX, QA and business stakeholders. If you’re ready for a stable, six-month engagement in NCR and enjoy a mix of new development plus maintenance, I’d like to talk.
Project ID: 40694635
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57 freelancers are bidding on average ₹68,959 INR for this job

I will start by auditing the current codebase to pinpoint hot spots and performance issues. Then I’ll refactor critical modules and implement the first user story within 30 days. I’ll commit clean, documented code to Git and walk QA through changes. I’ll work 9‑5 in your NCR office, collaborating daily with UX, QA and product owners. How many legacy modules need immediate refactoring?
₹61,379 INR in 30 days
8.3
8.3

As a professional Full Stack Developer with over 8 years of experience, I find myself perfectly primed and equipped to handle the challenges your project may pose. With a substantial track record of delivering high-quality, scalable, and secure web solutions, I believe I can add significant value to your team. My core expertise lies in PHP and Web Development, specifically Core PHP where I've often focused on protocol or framework independent development, that aligns remarkably well with your lean stack requirement. My extensive experience also features core Java skills that complement the Java element of your project. Additionally, my adeptness with Git, strong documentation skills and deep understanding of databases would be valuable assets for maintaining your existing codebase.
₹38,000 INR in 7 days
7.6
7.6

With over four years of solid PHP experience behind me, I am confident in my abilities to handle your project and deliver quality results. My specialization in Website Development, including core PHP, alongside other essential languages like Java, make me a perfect fit for your unique requirements. I understand the significance of what you already have in production and can ensure not only its smooth running but also bestow incremental improvements over time. Apart from being an expert coder who can read, write and optimize plain PHP/Java extensively, I'm also a pro at using Git repositories ensuring regular commits with detailed documentation that would undoubtedly meet your expectations. My excellent communication skills will certainly come into play as I brainstorm directly with UX, QA, and business stakeholders. Additionally, I am readily-available to engage for the six-month period you're offering—a testament to my dedication and interest in this project. Let's maximize the productivity of your web application together!
₹56,250 INR in 7 days
6.6
6.6

As an eight-year veteran of the coding world, I can assure you that working in your Delhi-Noida region won't only be a comfortable fit for me, but a symbiotic partnership that will yield impressive results for your digital project. My skills in Java, JavaScript, PHP, and my experience with web development place me within that realm of tailoring new features from user stories supplied by the product owner, reviewing legacy codes, and fixing them promptly to prevent their escalation. Another value I bring to the table is my disposition towards ongoing maintenance and technical support. For me, the completion of a project doesn't signal an end to my commitment. Instead, it's a foundation for forging long-lasting relationships with clients like you. My numbers speak, 98% on-budget delivery and 95% on-time delivery as testament to my dedication and efficiency in managing client projects successfully. Lastly, my portfolio isn't just steeped in building products but solutions. And having the privilege to work closely with UX experts, QA engineers and business stakeholders is not a challenge because I recognize solid communication as the bedrock of any great team. Therefore if you're looking for more than just competent coding skills but an invigorative powerhouse to drive performance and initiatives for your web application; then look no further!
₹57,500 INR in 7 days
6.4
6.4

I’ve worked on large web apps where maintaining a healthy codebase was crucial for keeping things smooth while building new features. In one case, I helped a product team by refactoring legacy PHP and Java code, which improved performance noticeably without changing the tech stack. Your focus on core PHP and Java matches what I’ve done daily—no reliance on frameworks, just solid, straightforward code. When tackling new modules from user stories, I always clarify any unclear requirements early on to avoid rework, and I keep communication open with UX, QA, and business teams to ensure features meet expectations. A quick question: How do you currently track and prioritize legacy code hotspots for refactoring? Also, would you want me to set up performance benchmarks for the existing modules before making improvements? I’m ready to join onsite in NCR, dive into your code, and balance new development with steady maintenance from day one.
₹37,500 INR in 7 days
6.1
6.1

Hi there I can provide an experienced onsite PHP/Java developer for your NCR Delhi/Noida requirement, with hands-on support for development, debugging, maintenance, and existing application enhancements. I have 20 years of software development experience. My approach PHP & Java Development — Work on new features, existing modules, APIs, and business logic. Bug Fixing — Debug and resolve application, integration, and production issues. Database & APIs — Handle MySQL/SQL databases, REST APIs, integrations, and data workflows. Existing Codebase — Quickly understand the current architecture and work within your development standards. Git & Deployment — Follow proper Git workflows and support builds, releases, and deployments. Onsite Support — Work closely with your team during the required contract period and provide regular progress updates. Quick questions 1. What PHP and Java frameworks are currently being used? 2. How long is the onsite contract? 3. Is the role full-time onsite? 4. Where in Delhi/NCR should the developer be based? 5. Can you share the current project stack and responsibilities? Share the contract details and technology stack, and I can confirm the best fit for the requirement. Let me know and we can jump on a quick call to discuss the project. Thanks
₹42,250 INR in 7 days
5.9
5.9

Your production application needs a developer who can add business modules while steadily reducing legacy-code risk, performance issues, and recurring defects. I bring 9+ years of software development experience, including PHP, Java, JavaScript, SQL, and Git-based production workflows. I’m comfortable reading unfamiliar core code, tracing behavior across database and application layers, and making focused changes without disrupting existing users. For each user story, I’ll confirm acceptance criteria, identify affected modules, implement the smallest maintainable change, and document database or configuration updates. Legacy fixes will include root-cause analysis, regression checks, query review, and clear commits that QA can reproduce. I’m also comfortable explaining technical tradeoffs directly to product, UX, business, and testing teams. Is daily attendance at the NCR office an absolute requirement, or would you consider a remote or hybrid arrangement for a senior developer?
₹37,500 INR in 6 days
5.2
5.2

With over four years of dedicated PHP development under my belt, I bring a wealth of hands-on experience to your large-scale project. Through my specialized work with Laravel and MySQL queries, I've honed my skill in crafting complex logic and quick problem-solving. In addition to the meaty aspects of code development, my experience brings value through a deep understanding of software development principles. Combining solid technical knowledge with a strong backing in the best practices for software development, my focus will be to not only develop what's needed but also ensure that the codebase you rely on remains healthy and scalable. My experience with core PHP makes me an apt fit for your lean stack, allowing me the advantage of reading, writing, and optimizing plain PHP proficiently. Lastly, I understand that communication is key in executing successful projects, especially when working on-site. My past work has taught me how to navigate collaborations while brainstorming directly with stakeholders from various departments, ensuring seamless integrations and satisfying outcomes. Let's dive into refining your current setup while solidifying new dimensions; together we can take your application to new horizons!
₹37,500 INR in 10 days
5.2
5.2

Hello Client, Greeting of the day!!!! I read your job description. I can do this job with quality product. I am always available for your support. Thanks
₹37,500 INR in 10 days
5.2
5.2

Production PHP/Java is a different job from greenfield coding—the dangerous part is fixing a legacy hotspot without breaking the modules that already depend on it. I’d keep changes small and traceable: understand the existing flow first, patch the real bottleneck, then refactor only where it reduces future maintenance. For new user stories, I’d work closely with QA so each change is easy to verify before it moves further. I’m comfortable with plain PHP/Java rather than hiding behind a framework, and I’d keep the Git history and code comments useful for whoever touches the module next. The six-month structure also suits this kind of steady improvement better than rushing isolated fixes. Are you hiring for one developer to cover both PHP and Java, or is the role weighted toward one of them?
₹37,500 INR in 20 days
4.6
4.6

This role needs someone who can work comfortably inside a large production codebase, not just build isolated features. I can contribute across new module development, legacy-code improvement, debugging and performance work using core PHP/Java, MySQL and Git. ✅ Develop new modules from product user stories ✅ Debug and maintain existing production functionality ✅ Refactor legacy PHP/Java code without unnecessary rewrites ✅ Optimize database queries and application performance ✅ Work with JavaScript, MySQL and existing APIs ✅ Follow clean Git-based development and documentation practices ✅ Coordinate closely with UX, QA and business stakeholders ✅ Walk QA through changes and support structured testing ✅ Focus on maintainable, secure and scalable implementations My approach is to first understand the existing architecture and business workflows, then make controlled, testable changes that improve the application without destabilizing production. Ashish Malik | Full Stack Developer & Digital Marketing Expert 9+ years | 500+ projects delivered I’m comfortable with hands-on development and maintenance work where communication, code quality and ownership matter as much as implementation. Let’s start a chat to discuss the existing stack, development workflow and engagement structure.
₹56,250 INR in 6 days
4.8
4.8

Hi, I’ve reviewed your project requirements and would be happy to help you build, improve, or maintain your application. I’m a Full-Stack Web, Mobile, Python & AI Developer with experience working with startups, businesses, and digital agencies. I specialise in **Laravel, PHP, React.js, Node.js, Python, Flutter, AI/ML, and LLM integrations. My expertise includes: • Laravel / PHP web applications & APIs • React.js / Node.js development • Python development & automation • Flutter mobile applications • AI/ML, OpenAI & LLM integrations • AI chatbots, assistants & workflow automation • SaaS, CRM & ERP platforms • API & database development • Bug fixing, security & performance optimisation • Existing application maintenance and modernisation Whether you’re starting a new project or need help with an existing application, I can take ownership from technical assessment and development through testing, optimisation, AI integration, and deployment. I focus on clean architecture, scalable solutions, security, performance, and maintainable code. I can also work as an extended engineering team or white-label development partner for agencies. Please share your requirements, designs, repository, or specifications. I can quickly review the scope and suggest a practical approach. I’m available to discuss your project and can get started immediately.
₹56,250 INR in 7 days
4.8
4.8

I’m an experienced web developer with strong hands-on expertise in PHP, JavaScript, HTML/CSS, and maintaining large-scale web applications. I can work comfortably with core PHP and legacy codebases, handling new feature development, bug fixing, refactoring, code optimization, and performance improvements. I’m also experienced with Git-based workflows and can collaborate closely with product, UX, QA and business teams to deliver well-tested and properly documented solutions. I’m interested in the six-month onsite engagement and can contribute effectively to both new module development and ongoing application maintenance. I’m confident in understanding existing code, identifying improvement areas, implementing reliable solutions and communicating clearly with the team throughout the development and QA process. I’d be happy to discuss the project requirements and how my experience can support your product team.
₹51,000 INR in 7 days
5.4
5.4

Hi, I’m a senior developer with **14 years of hands-on experience** building and maintaining large-scale production web applications using PHP and Java. I have strong expertise in core PHP/Java, legacy code modernization, debugging, refactoring, performance optimization, and developing new modules from business requirements. I’m comfortable working onsite in NCR, Monday–Friday, 9 AM–5 PM for the full six-month engagement. I follow disciplined Git practices, write clean and maintainable code, and collaborate closely with product, UX and QA teams. I can start promptly and would be happy to discuss your existing codebase. Best Amit
₹60,000 INR in 10 days
4.0
4.0

I can strengthen your production web application by first reviewing the existing Core PHP/Java codebase, identifying performance bottlenecks, legacy hotspots, and recurring bugs, then delivering new modules from your product stories without disrupting existing functionality. I’ll work through each requirement systematically: understand the user story, clarify edge cases with your product/UX team, design the implementation, develop clean PHP/Java/JavaScript code, integrate MySQL queries efficiently, and test the complete flow before handover. For maintenance, I’ll trace issues to their root cause rather than applying temporary patches. I’ll refactor risky legacy sections incrementally, optimise slow SQL and backend operations, improve error handling, and monitor changes carefully so production stability is maintained. 3.1 In similar applications, challenges such as inefficient database queries, tightly coupled legacy logic, unexpected regressions, and slow API/page responses can be addressed by profiling the affected flow, isolating the bottleneck, making targeted changes, and regression-testing dependent modules. 3.2 I’ll maintain a clean Git workflow with meaningful commits, documentation, and clear QA handovers so every change is easy to review and verify. Since this is an onsite NCR engagement, I’m comfortable collaborating directly with product, UX, QA, and business stakeholders during the required six-month schedule.
₹70,000 INR in 7 days
3.7
3.7

Hi, I read your requirement carefully. I’m a full-stack developer with strong experience in **PHP, Java, JavaScript, MySQL, web development and Git**, and I’m comfortable working across both new feature development and existing/legacy codebases. I can work from your product team’s user stories, develop and optimize core PHP/Java modules, troubleshoot production issues, refactor problem areas, and keep changes properly documented in Git. I also understand the importance of working closely with **QA, UX and business stakeholders** when the development is onsite. For a six-month engagement, I’d focus on becoming productive quickly and maintaining the codebase reliably while delivering new modules on schedule. One question: **Is the existing application primarily Core PHP, Core Java, or a combination of both?** I’d be happy to discuss the onsite arrangement and your current product architecture.
₹489,000 INR in 5 days
3.4
3.4

Hi-Abror Here From Uzbekistan. "Onsite PHP Java Development" - I can support your production application using PHP, Java, MySQL, Git, and software engineering practices. I can develop new modules, maintain existing systems, optimize performance, fix bugs, and collaborate with product teams while delivering clean documented code through Git workflows. I will handle user stories, code reviews, database improvements, testing support, and ongoing maintenance with reliable development practices throughout the six-month engagement period. Can you share the application architecture and current development workflow? Could you please clarify the following questions to help me better understand the project? : What are the main technologies used in your current application? Which modules require immediate development attention? Looking forward toworking with you.
₹56,000 INR in 10 days
3.2
3.2

Hello there, I’ve carefully reviewed your requirements and understand that you need a bilingual Arabic/English HeyGen-powered kiosk application with real-time avatar interaction, plus a secure web admin panel for content, users, analytics, logs, and troubleshooting. For this project, I will: → Build the kiosk interface with intro video and live avatar flow → Integrate HeyGen API for real-time avatar interaction → Configure Arabic/English speech-to-text and text-to-speech → Implement language detection/switching and product Q&A → Build role-based admin access and user management → Add knowledge base and scripted-content management → Create conversation logs, usage metrics & analytics dashboards → Add CSV/PDF report exports → Build diagnostics for microphone, latency, and API/network status → Abstract API credentials into secure configuration → Provide Windows/Linux deployment and update scripts → Deliver source code and concise technical documentation → Support the 48-hour acceptance testing workflow One point should be validated early: the requested sub-1-second end-to-end response time depends on HeyGen/speech APIs, network conditions, and kiosk hardware, so I would benchmark this before treating it as a guaranteed acceptance metric. Before starting, please share the kiosk hardware specifications and confirm whether the HeyGen Streaming Avatar API/account is already available. Best regards, Saruar
₹40,000 INR in 7 days
2.2
2.2

Hello, I’ve worked with core PHP, core Java, MySQL/SQL, JavaScript, REST APIs, Git, debugging, legacy code maintenance, and performance optimization for production web applications. The main challenge is improving an existing production codebase without introducing regressions while delivering new modules from business requirements. I’d first understand the current architecture and coding patterns, then scope each user story into small implementation tasks, develop and test the feature, review affected legacy code, and optimize identified performance bottlenecks. For maintenance, I’d focus on root-cause debugging rather than temporary patches, with careful refactoring around high-risk areas. All changes would be committed with clear messages and documentation, and I’d coordinate closely with QA, UX, and the product team for verification. I’m comfortable with an onsite, Monday–Friday engagement and direct collaboration with stakeholders throughout the six-month period. Could you share the current PHP/Java architecture and the main modules planned for the first month?
₹56,250 INR in 7 days
2.4
2.4

Hello, I have experience working on large web applications involving Core PHP, Java, JavaScript, MySQL, Git, feature development, and ongoing maintenance, so this role aligns well with my background. I’m comfortable working directly with legacy PHP/Java code, implementing modules from user stories, tracing and fixing production issues, refactoring carefully, and optimizing database queries and application performance without introducing unnecessary framework dependencies. I follow clean Git practices and document changes clearly so QA and other developers can understand, test, and maintain the implementation. I also work comfortably with product owners, QA, UX, and business teams when translating requirements into practical technical solutions. I can start immediately.
₹40,000 INR in 7 days
2.0
2.0

Ahmedabad, India
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Member since Aug 16, 2015
₹600-1500 INR
₹12500-37500 INR
₹600-1500 INR
₹600-1500 INR
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$25-50 USD / hour
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₹750-1250 INR / hour
₹750-1250 INR / hour
₹600-1500 INR
₹12500-37500 INR
$5000-10000 USD
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₹1500-12500 INR
$10-30 USD
$2-8 AUD / hour
$750-1500 USD
$30-250 USD
₹12500-37500 INR