PHP Developer

Core AI Backend Engineer – LLM Fine-Tuning

You know that moment when you don’t just debug code — you train a model, fine-tune it, and suddenly it understands your domain better than you expected? That’s the kind of magic we’re looking for.

We’re building something that turns chaotic social video data into crystal-clear business intelligence. Not just another API — but AI-backed architecture fine-tuned to our world. Systems that marketing teams thank you for, because they feel the intelligence, not just the infrastructure.

Either you feel the craft when you read this, or you don’t. This isn’t just another backend role. This is where you bring together scalable systems and cutting-edge LLMs to build something the world hasn’t seen before.

Who We Are

We’re a small, global team that ships fast. Every line of code and every model choice affects millions of video analysis requests.

Our engineers don’t just build APIs — they architect solutions, they optimize at scale, and now, they fine-tune models to make AI work in the real world. Our CPTO still codes. Our senior engineers make complexity look effortless. Our backend team sets a standard that others ask how we move so fast.

What We Need

We need someone who’s lived both sides of this life:

• Backend excellence: building high-scale, high-performance systems.
• LLM fine-tuning: hands-on with open-source models, not just calling APIs.

Someone who can sit with a requirement at 2pm and by 6pm not only has endpoints working, but also has a fine-tuned model running behind them — customized to our use case.

Your Craft

• JavaScript/TypeScript & NodeJS as core backend tools.
• Next.js for full-stack where needed.
• Rust when performance is non-negotiable.
• Golang/Python as comfortable tools of choice.
• MySQL/Postgres/Redis — wielded with intention.
• AWS ecosystem — your playground, not your puzzle.
• LLM/AI integration you’ve actually shipped.
• Open-source LLM fine-tuning experience:
• Bringing in open-source models (LLaMA, Mistral, Falcon, etc.).
• Fine-tuning/adapting them for specific domains.
• Optimizing for inference cost, latency, and accuracy.

The Reality

The work is beautifully complex. The scale is real and growing. The problems are the kind that wake you up at 3am with solutions.

If you get your energy from building backend systems and adapting LLMs to make them smarter for real-world use, you’ll probably fall in love with what we do. If you’re only interested in APIs without touching models, this won’t be your thing — and that’s completely okay.

How to Apply

If you’re reading this thinking “finally, a team that actually cares about real AI engineering” — we’d love to see something you’ve built.

Not just a resume. Show us your craft:

• An LLM fine-tuning repo.
• A domain-adapted model you worked on.
• A system design where you combined backend and AI.
• Or even a short write-up or voice note explaining what you’ve fine-tuned.

We’re genuinely excited to see what you’ve done and have a meaningful conversation about whether this could be magic for both of us.

ROLES AND RESPONSIBILITIES:

You'll work closely with our team to implement best practices, improve our architecture, and create a high-performance engineering culture. Over a 6–9-month period, you'll also immerse yourself in game development, Unity, and C# to become a well-rounded technical leader in the gaming space.

• Drive maximum development velocity through direct involvement in development sprints, ensuring developers work as efficiently and effectively as possible.
• Lead and mentor a team of engineers, fostering a culture of technical excellence and continuous improvement.
• Drive architectural decisions that ensure scalable, maintainable, and high-performance game products.
• Foster a high-performance engineering culture aligned with ambitious goals, accountability, and proactive problem-solving.
• Implement and enforce engineering best practices (e.g., code reviews, testing, documentation) and the adoption of new tools, technologies including AI, and methodologies to optimize team efficiency.
• Transition our team to a high-performance culture aligned with our ambitious, venture-backed goals.

IDEAL CANDIDATE:

• 8+ years of software engineering experience with at least 3+ years in a technical leadership role
• Ability to reasonably estimate and plan tasks and features.
• Strong programming fundamentals and hands-on coding abilities
• Strong grasp of software architecture, TDD, code reviews, and clean coding principles.
• Proficient at profiling games to identify bottlenecks and performance issues.
• Experience building complex, scalable software systems
• Proven track record of driving architectural decisions and technical excellence
• Experience mentoring and developing engineering talent
• Strong problem-solving skills and attention to detail
• Excellent communication skills and ability to explain complex technical concepts
• Experience with agile development methodologies
• Bachelor's degree in computer science, Engineering, or equivalent practical experience

PERKS, BENEFITS AND WORK CULTURE:

• We foster a culture of continuous learning.
• We value talent and the ability for significant self-improvement.
• Honest feedback and transparency across all departments allow for rapid skill development.
• You will have the opportunity to work on an exciting new game development product with complete autonomy.

• should have at least 5 years of proven experience in .net core with entity framework
• You need to work on the existing .net application to create new web APIs with the latest standards using the .net core in the entity framework
• Should have expertise in .net core using the entity framework
• Should be expertise in C# programming & OOPS concepts
• Should have good professional experience in ASP.Net, .Net Core, entityframework, ASP.Net MVC & Web API
• Expertise in .Net framework & Class libraries
• Very strong understanding of JSON, XML, XSD, XSLT
• Very strong knowledge of Web deployment & IIS
• Expertise in exceptional handling & best practices
• Good knowledge on SQL server & SQL
• Should have good communications skills
• Should be a Quick learner
• Should work independently
• Education qualification is graduation
• Expertise in building the APIs for the data-driven application
• Good to have the Azure deployment experience.
• Should be proactive and bring new ideas to the team
• Able to deep dive into code to fix the issues
• Should be expertise in creating and modifying the existing APIs

• Strong experience in building UI and Backend process, APIs using PHP and CI technology stack
• Excellent knowledge and experience of CodeIgniter CI
• Good core knowledge of HTML5, CSS3, jQuery, and Bootstrap
• Good knowledge and experience in MySQL
• Good experience in the build and deployment process

• Bachelor’s degree in computer science or a similar field.
• Knowledge of PHP web frameworks including Laravel, and CodeIgniter.
• Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
• Understanding of object-oriented PHP programming.
• Previous experience creating scalable applications.
• Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
• Familiarity with SQL/NoSQL databases.
• Ability to project manage.
• Good problem-solving skills.

Software Programmer - PHP 

About us 

GRG India is a leading provider of end-to-end loyalty management services in India. We help large and mid-size companies acquire, engage, retain and influence their customers, employees and channel partners. Our clients include some of India’s top brands across BFSI, FMCG, Construction, IT, Agro Chemicals, and Automotive industries. 

Following are examples of what we do: 

• Design a mechanic loyalty program for a large auto ancillary company, wherein the mechanic gets incentivized every time he influences the vehicle owner to buy original OEM spare parts 
• Send promotional offers to customers of large banks to make them use specific banking channels (e.g. Net Banking, Mobile App etc.) or products (e.g. Remittance, Loans etc.) 
• Acquire and grow the customer base of a large MNC agro chemical company by using farmer referral programs and instant gratification rewards 
• Engage HNI customers of a large real estate company with high-end exclusive benefits, privileges, and rewards 

• Assist one of India’s top credit card issuing companies to reduce employee attrition and increase sales across multiple sourcing channels 

With a reputation that’s been built over a decade of providing successful loyalty management solutions, we’re now embarking upon a journey of creating highly modular, scalable, and mostly standardized products.  

We have recently launched a SaaS product  Let’s Buzzz, an employee engagement platform that helps drive performance and innovation at the workplace. It is a comprehensive product designed to empower business. from accelerating employee engagement to helping appreciate good work and motivating employees to deliver on business objectives.  

Reports to 

AVP - Technology 

3 best things about the job 

• Work in a rapidly evolving industry where scalable tech products have a huge impact 
• Work in a product environment which provides a greater scope for growth 
• Exposure to different technologies and frameworks 

Responsibilities of the role 

• Develop Web/App based solutions in PHP and PHP based frameworks (CodeIgniter/Laravel) having a Service Oriented Architecture (REST/SOAP) 
• Work on integration of 3rd Party libraries as required by the product 
• Unit-testing code for robustness, including edge cases, usability, and general reliability 

• Ensure the quality of the end product while adhering to quality norms 
• Creating Technical documentation wherever applicable 
• Collaborate with cross-functional teams to define, design, and ship new features 
• Take part in requirement understanding and contribute to solution of the requirement 

What you will need  

• Should have a sound experience in PHP, MVC Frameworks, Code Igniter. 
• Strong grasp in web development open source: CSS, HTML5, PHP, MySQL, JavaScript, jQuery, AJAX & JSON 
• Working knowledge of MySQL databases 

• Good knowledge of relational databases, version control tools and of developing web 
• Knowledge of Angular JS, Node JS will be considered as an added advantage