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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.

Role & Responsibilities
work with peers in Product, QA, and other Engineering departments;
coach and mentor team members;
cautiously drive adoption of new technologies and processes;
preserve our engineering values of quality, scalability, and maintainability;
“see around corners” — identify blind spots and prioritize work across teams;
work with international teams to ensure successful product development and delivery; and
own the overall architecture and systems engineering for your products.

As a Node.js Developer, you will be responsible for:
Designing, developing, and maintaining server-side applications and systems using Node.js, a JavaScript runtime environment. Your expertise in backend development, JavaScript, TypeScript, and REST APIs will play an essential role in creating efficient and powerful server-side applications.
Responsibilities:
● Design and implement efficient, secure, and maintainable server-side code using Node.js.
● Collaborate with the front-end development team to integrate user-facing elements with server-side logic.
● Develop APIs for seamless data flow between the front-end and back-end.
● Optimize application performance and ensure high availability and scalability.
To succeed in this role – you should have the following:
● Minimum of 3-4 years of experience as a backend developer.
● Must have proven experience as a Back-End Developer, with a focus on Node.js.
● Proficiency in JavaScript, TypeScript, and related frameworks (Express.js, Hapi.js, etc.).
● Experience with RESTful API design principles.
● Experience with agile development methodologies.
● Familiarity with working with at least one of PostgreSQL or MongoDB.
● Familiarity with version control systems (Git)
● Strong communication skills and ability to work collaboratively in a team.
● Strong problem-solving skills and attention to detail.
Added bonus:
● Familiarity with frontend development technologies like HTML and CSS.
● Experience working with Docker, Github Actions, and other common CI/CD pipelines
● Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
Education:
Bachelor's degree in Computer Science, Information Technology, or a related field

What kind of work will you get?
We are looking for a Nodejs developer.
Examples of technical tasks:
Working on our backend SDK to implement APIs that will be consumed by the frontend widgets
Designing APIs for different auth recipes
Architecting auth flows
You will also be given non technical tasks like product brain storming, competitor analysis and writing documentation.
Note: Compensation is as per the applicant's geography
Requirements
Well versed in nodejs with 2+ years of professional experience
Familiar with and comfortable working with Web frameworks like FastAPI, Django and Flask
Familiar with HTTP networking in nodejs
Strong understanding of async and sync modes in nodejs
Bonus:
Contributed to open source, or have your own open source repo with a community and many github stars
Built an in-house authentication or authorization solution or worked with solutions such as Keycloak, Auth0, Ory, Okta etc



- Started in 2016, Techjockey.com is India's only software e-marketplace with over 2200 IT vendors and more than 10,000 Software Products. We are playing a pivotal role in changing the buying behaviour of today's IT customer by making them choose, compare and buy software online on Techjockey.com.
- Product Managers team is driven by patience, ability to interact with different customers and identifying their needs. They are a key to our success strategy and act as a backbone to our business model. Our vision is to disrupt the unstructured IT industry and build a single platform for all business through action planning in and around this business team.
Requirements :
- You will a part of the consumer tech team responsible for the development and maintenance of consumer products such as responsive websites, backend APIs, property search engines, user experience to name a few. Your primary focus will be driving user conversion by developing tech solutions that help our consumer find their dream home.
- We take pride in solving complex problems for our users and aimed to be their trusted advisor, so having strong consumer empathy is a must-have. You will be working alongside other engineers and developers working on different layers of the complicated system, hence a commitment to collaborative problem solving, sophisticated design, and the creation of quality products are essential.
Responsibilities :
- Design, code, document and test software in PHP, Node.js,Angular/React.js HTML, and CSS.
- Demonstrate expertise in software design patterns, with a passion for developing clean and reusable code.
- Show thought leadership by mentoring and assisting tech/non-tech staff within the company.
- Take ownership of software development aspects, such as architectural discussions, sprint planning, quality of product and code and user experience.
Job Description - 221135
Cloudera is looking for a highly experienced software engineer with strong expertise in Java development and a specialty in platform architecture to join the Cloudera Lens team.
Cloudera Lens is a high-fidelity, context-rich, and fully correlated self-service observability & optimization tool that analyzes the state and wellness of a customer’s environments and empowers them to proactively discover and address unknown unknowns in their data, scale operations without compromising on performance or costs, and expedite remediation of issues.
As a Java engineer, you will be working in a team of engineers led by an Engineering Manager, collaborating with other engineers and stakeholders in India, United States, and other countries around the globe.
Responsibilities:
- Lead, architecture, design, and implementation of key aspects of the Cloudera Lens data collection, data analytics, data correlations, and recommendations.
- Work with product management, engineering, UX, and documentation teams to deliver high-quality products.
- Interact with partners and customers to help define roadmap and shape the technology.
- Empower team members to deliver high-quality software at a fast pace.
Requirements:
- Proven track record of performance.
- Passionate about software engineering. Clean coding habits, attention to detail, and focus on quality and testability.
- Strong software engineering skills: object-oriented design, data structures, algorithms.
- Experience with containerization orchestration technologies: Kubernetes, Docker.
- Deep knowledge of system architecture, including process, memory, storage, and network management is highly desired.
- Experience with the following: Java, concurrent programming, and related areas.
- Experience with Java memory management, performance tuning and scaling
- Experience in building horizontally scalable products handling multi-terabyte datasets is desirable.
- Experience with relational and non-relational databases: PostgreSQL, Amazon S3.
- Strong oral and written communication skills in English.
Advantageous To Have:
- Experience in building enterprise-grade cloud products.
- Experience with building/using cross-functional observability products.
- BS or MS in computer science.
- Cloud experience: AWS, Azure, GCP.
- Python, Linux, Micro Services experience.


Key Expectations :
- In depth knowledge of React JS and Node JS
- Test Driven Development
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Key Skills :
- Strong proficiency in Node, Express JS
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Experience with data structure libraries (e.g., Immutable.js)
- Familiarity with RESTful APIs using Express JS
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools Git
- Good Experience With Amazon AWS Services Lambda, S3, IAM, DynamoDB, etc.

We are looking for experienced Full Stack Web Developers. Web Application developer who possesses a passion for pushing web technologies to the limits and will work with our team of talented engineers to design and build the next generation of our web applications.
Responsibilities
- Design and build scalable, mobile-first web applications
- Collaborate with cross-functional teams to define, design, and ship new features
- Unit-test code for robustness, including edge cases, usability, and general reliability
- Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency
Skills
- BS/MS degree in Computer Science, Engineering or a related subject.
- 3 to 5 years of industry experience as a Full Stack Developer with focus in React.js and Node.js
- Experience with Express.js and Node.js is a must.
- Experience with third-party libraries and APIs is required.
- Experience using Google Firebase is an asset.
- Experience in UI/UX design is preferred.
- You should also be up to speed on practices like TDD, CI/CD, and pair programming.
- You should be very comfortable working with Agile, Lean and Continuous Delivery practices -- and love it as much as we do.
- Understanding and playing a part in the entire cycle of software consulting and delivery (ideation, project conception, UX, code, testing, deployment, and around again).
- Working knowledge of the general web application landscape, architectures, trends, and emerging technologies.
- Solid understanding of the application development life cycle.

