Big Data Engineer

Job Title : Node.js Developer

Experience : 5+ Years

Location : Gurgaon – Sector 43

Work Mode : 5 Days Work From Office (WFO)

Interview Mode : Direct Walk-in

Job Summary :

We are looking for an experienced Node.js Developer with 5+ years of hands-on experience in backend development and building scalable applications.

The ideal candidate should have strong problem-solving skills and experience working in a fast-paced product or service-based environment.

Key Responsibilities :

• Develop and maintain server-side applications using Node.js.
• Design and implement RESTful APIs and microservices.
• Work with databases like MongoDB / MySQL / PostgreSQL.
• Integrate third-party APIs and services.
• Ensure performance, security, and scalability of applications.
• Collaborate with frontend developers, QA, and DevOps teams.
• Write clean, reusable, and efficient code.
• Participate in code reviews and technical discussions.

Required Skills :

• Strong expertise in Node.js and JavaScript.
• Experience with Express.js or similar frameworks.
• Knowledge of Microservices architecture.
• Hands-on experience with MongoDB / SQL databases.
• Experience with Git and CI/CD processes.
• Good understanding of cloud platforms (AWS preferred).
• Strong debugging and optimization skills.

Preferred Skills :

• Experience with Docker / Kubernetes.
• Knowledge of Redis, Kafka, or message queues.
• Understanding of Agile methodologies.

Job Responsibilities

1. Handle inbound/outbound customer queries for international clients via voice, chat, and email.
2. Provide accurate information and resolve customer issues professionally and efficiently.
3. Maintain high standards of customer satisfaction and service quality.
4. Document customer interactions and update CRM systems accurately.
5. Follow international communication and compliance guidelines.
6. Meet performance metrics like CSAT, AHT, and quality scores (yes, numbers matter).

Required Skills & Qualifications

1. Excellent spoken and written English (neutral accent is a big plus).
2. Strong communication, listening, and problem-solving skills.
3. Ability to handle customers calmly?even when they?re having a bad day.
4. Basic computer skills and comfort with CRM/tools.
5. Willingness to work night shifts / rotational shifts.
6. Graduate in any discipline preferred (attitude > degree).

What We Offer

• Competitive salary + performance-based incentives.
• Professional work environment with global exposure.
• Training provided for freshers (we train skills, not egos).
• Career growth opportunities in international BPO operations.

Who Should Apply

1. Freshers looking to start a career in the international BPO industry.
2. Experienced customer support executives ready to level up.
3. People who can talk clearly, think fast, and don't panic under pressure.

Bachelor’s/Master’s degree in Business Administration, Supply Chain, Operations Management, or related field.

7+ years of proven experience in operations, supply chain, or logistics, preferably in ecommerce, retail, or FMCG.

Strong leadership and people management skills.

Expertise in supply chain design, warehouse operations, vendor negotiations, and fulfillment strategies.

Knowledge of ERP/WMS systems and ecommerce operations tools.

Analytical mindset with strong problem-solving skills.

Excellent communication and stakeholder management abilities.

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.

• Core Java 5.0 and above
• Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
• Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS, preferably Sybase database
• Good knowledge of multi-threading and high volume server side development
• Experience in sales and trading platforms in investment banking/capital markets
• Basic working knowledge of Unix/Linux.
• Strong written and oral communication skills.
• Should have the ability to express their design ideas and thoughts.

• Your Role and Responsibilities

1. Your main job involves creating new features on the visible parts of a website using React.js.
2. You'll be building reusable components that can be used again in the future, saving time and effort.
3. Designs for the website will be given to you, and you'll convert them into actual working and visually appealing website elements.
4. You'll ensure that the website works smoothly on various devices like phones, tablets, and computers.

• Skills and Traits We're Seeking

1. You have a strong understanding of React.js and its workings.
2. You're skilled in a JavaScript
3. Experience with common React.js workflows like Flux or Redux is important.
4. You're familiar with RESTful APIs.
5. Knowledge of modern security measures like JSON Web Token is important.
6. You're comfortable using tools that streamline the process of building website elements, such as Babel, Webpack, and NPM.
7. Translating business requirements into technical plans for the website comes naturally to you.
8. You've used version control tools like Git or SVN to manage and track changes in code.

• Expected Experience

1. You should have accumulated 2 to 4 years of relevant experience in this field.

This is an individual contributor role in an employee-oriented, high performance environment that emphasizes on spreading the BYJU's unique way of learning in your city. Your role will start with contacting potential customers (parents and students) to set up meetings, counsel the students on the BYJU's unique way of learning and convert them into premium subscribers in your designated zones.Must have requirements:
1. Should be a graduate (any graduate is okay).
2. Should be passionate about sales.
Bonus and other benefits :
1.You can earn upto 3 Lakh in your incentives.
2. 300 best performers for each quarter (every 3 months) are taken on a 5 days fully paid international trip.
3. You will have weekly targets to achieve, consistent failure to achieve them will obviously result in job cancellation, thats not a surprise. Go big or go Home! (to be honest its easy)
4. This is a high-performance job for someone who wants to make it large, take big risks and continuously challenge themselves.
5. We require high intent, extreme determination and hard work which will be most certainly rewarded.
6. We are somewhat still a start-up, so you will have more opportunities to be recognized than elsewhere (if you are honest to your work).
Things which will make you immediately stand out :
1. Effective Communication and quick witness.
2. Should be highly energetic and enthusiastic.
3. Must have keen interest in education and mentoring students.

Job Brief -

• We are looking for a Facebook & Google Ads expert to support our lead strategists with social & search ad campaigns for our clients. 
• You will be tasked with pulling reports, making optimization recommendations, getting ads live, and making strategy adjustments as needed. 
• You'll learn how we create and optimize campaigns using our process and conversion techniques that deliver real results and get to share in the success of our marketing/advertising objectives. You will spend most of your time in Google Ads, Facebook & Linkedin & experience with Google Analytics, and Google Tag Manager is a must.