Senior Backend 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.

Developer – Golang 

Responsibilities: 

• An individual contributor who will be part of the Software R&D team working on the following areas 

• Backend work in Golang, Micro services architecture 

• Work with internal team and customers to deliver solutions that will meet the customer needs with respect to the performance security, scalability and functionality. 

• Implementation of API and authentication methods using JWT 

• Writing scalable, robust, testable, efficient, and easily maintainable code 

• Translating software requirements into stable, working, high performance software 

Skills 

• 2-5 years of experience in Go programming language 

• Strong experience in working with Goroutine and channel patterns 

• Experience in Go framework for DB, JSON, Sockets, Web Frameworks and tools 

• Knowledge of logging and configuration packages like Zap, Viper 

• Experience in writing unit tests for Golang code 

• Familiarity with code versioning tools such as Git or Azure Repo 

• Should have knowledge of MySQL, PostgreSQL, or any RDBMS 

• Good knowledge of Linux / Ubuntu 

About Prêtture

We are India’s coolest SaaS ERP for Fashion, Lifestyle and Home Decor brands. Currently working across 100 brands like House of Masaba, Rahul Mishra, Raw Mango, Anamika Khanna and many others across India, helping them organise their end to end business workflow through our application.

We are currently working on new development and enhancement in the application and are hence looking forward to senior software developers.

The ideal candidate is a creative problem solver who understands the requirement and comes up with the solution keeping in mind the impact of the solution on existing code

Responsibilities

• Understand the problem statement and get the code done for the server side programming of our software including the database and other internal/external micro services communication
• Maintain the quality of code
• Impact analysis before actually writing any code
• Use the optimised SQL queries only

Qualifications

• At least 2-3 years' of experience using NodeJS and MySql/PostgreSQL (This is mandatory. Please do not apply in case of lesser experience in either NodeJS or MySQL/PostgreSQL)
• Bachelor's degree or equivalent experience in Computer Science

Office Location

 Navi Mumbai

Skills Required for Back-End (NodeJS) JR Developer (2-4 Yrs) /Sr Developer (4-8 Yrs) /Lead Developer (8-10 Yrs) /Architect (10-12 Yrs):

• Must: Strong experience and understanding of NodeJS and JavaScript Programming, Good at Native Cloud or AWS
• Good knowledge of MongoDB or any other NoSQL Database, Redis, Elasticsearch, etc.
• Good understanding of scalable computing systems, software architecture, data structures, and algorithms.
• Experience working with AWS or other cloud providers
• Experience in service-oriented and/or microservice architectures
• Good to have knowledge with stream processing applications, Event-driven Architecture, Identity management (OAuth) - Not Mandatory
• Good knowledge of Redis, its data types, and their use cases along with a server-side framework
• Experience developing and deploying REST APIs.
• Good to have an understanding of low-level Kafka inner workings and partitioning schemes - Not Mandatory

Responsibilities:

• Design, build, review and evolve durable, highly scalable event-driven infrastructure
• Architect and lead the development of backend services.
• Work with REST APIs and integrating them with our software platform
• Develop front end capabilities such as dashboards, visualizations, features
• Work on building best performance UI features and linking with backend
• Integrate all the front end features with a backend pipeline 
• Integrate our AI models with the platform pipeline 
• Work on bug fixing and improving application performance 
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Own new initiatives, Debug production issues
• Help define the way we work in the future including coding and design standards
• Work effectively in an agile development process
• Research cutting edge technology that can be applied to accelerate business growth
• Be the communication bridge be product owners and development teams