NodeJS Developer

Job Title : Senior Backend Developer (Node.js + AWS + MongoDB)

Experience : 4+ Years

Location : Andheri, Mumbai (Work From Office)

About the Role :

We are looking for a highly skilled Senior Backend Developer with strong expertise in Node.js (NestJS), AWS, and MongoDB to join our growing engineering team.

This role requires someone who takes ownership, is proactive, and enjoys building scalable, high-performance backend systems in a fast-paced environment.

Key Responsibilities :

• Architect, design, and develop scalable backend services using Node.js (NestJS).
• Design and manage cloud infrastructure on AWS Services (EC2, ECS, RDS, Lambda, etc.).
• Develop and maintain high-performance database solutions using MongoDB.
• Work with Kafka, Docker, and serverless frameworks (SST) for efficient deployments.
• Optimize system performance, scalability, and reliability across services.
• Ensure application security, best practices, and compliance standards.
• Collaborate with cross-functional teams to deliver robust product features.
• Take end-to-end ownership of features from design to deployment.

Technical Requirements :

• 4+ years of backend development experience.
• 3+ years of hands-on experience with Node.js.
• 2+ years of hands-on experience with AWS.
• Strong experience with NestJS framework.
• Solid experience with MongoDB and database design.
• Experience with Kafka, Docker, and serverless architecture.
• Understanding of system design, scalability, and performance optimization.

Good to Have (Bonus Skills) :

• Experience with Python or other backend languages.
• Exposure to Agentic AI use cases or implementations.
• Strong understanding of security best practices.

What We’re Looking For :

• Curious mindset and eagerness to learn new technologies.
• Proactive problem solver with strong ownership attitude.
• Strong team player with effective communication skills.
• Positive, energetic, and passionate about building great systems.

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.

MathonGo is looking for a Backend Developer to build and maintain scalable systems for our learning platforms.

Responsibilities

• Develop and maintain backend services using Node.js.
• Design APIs and database structures using MongoDB.
• Use Redis for caching and performance improvement.
• Deploy and manage applications on AWS.
• Fix bugs, improve performance, and ensure system reliability.
• Work closely with frontend and product teams.

Requirements

• Strong knowledge of Node.js and JavaScript.
• Experience with MongoDB and Redis.
• Understanding of REST APIs and backend architecture.
• Basic experience with AWS deployment and services.
• Familiarity with Git and debugging.
• Good problem-solving and communication skills.

Experience with high-traffic applications or ed-tech products will be an advantage.

Roles & Responsibilities:

• In-depth knowledge and hands on experience on IBM FileNet (CPE) and Java/J2EE is mandatory.

• Good understanding of React JS, JavaScript, jQuery, Bootstrap, and front-end languages.

• Understand Project and detailed Scope and seek clarifications where necessary.

• Design, develop, and unit test applications / products.

• Analyze the impact due to changes in code.

• Design algorithms and flowcharts.

• Produce clean, efficient, and re-usable codes based on specifications.

• Run and automate tests to find any errors or bugs.

• Verify and deploy programs and systems.

• Configure, code and test enhancements and modifications to new and existing IBM FileNet applications.

• Proficiency in development and integration with SOAP Webservices, RESTful APIs and Microservices.

• Active Involvement in Development of Utility Job and Batch process associated with FileNet Application is a must.

• Knowledge of WebSphere Application Server, Deploying IBM FileNet, and Java/J2EE Application from lower to higher environments is essential.

• Troubleshoot issues and help define solutions to these issues.

• Displays a strong work ethic and sense of urgency.

• Part of the FileNet Development Team Engaged in active problem solving to identify technical roadblocks and implement solutions that can improve the direction of our application product.

• Key learner and timely update self-skill sets.

• Familiar with the use of code versioning tools such as Bit bucket, GIT or SVN.

• Basic Understanding of S3 Storage, IBM DB2, JIRA tool and Confluence (team workspace) will be an advantage. Education

Immediate Joiners Preferred. Notice Period - Immediate to 30 Days

Interested candidates are requested to email their resumes with the subject line "Application for [Job Title]".

Only applications received via email will be reviewed. Applications through other channels will not be considered.

About Us

adesso India is a dynamic and innovative IT Services and Consulting company based in Kochi. We are committed to delivering cutting-edge solutions that make a meaningful impact on our clients. As we continue to expand our development team, we are seeking a talented and motivated Backend Developer to join us in creating scalable and high-performance backend systems.

Job Description

We are looking for an experienced Backend and Data Developer with expertise in Java, SQL, BigQuery development working on public clouds, mainly GCP. As a Senior Data Developer, you will play a vital role in designing, building, and maintaining robust systems to support our data analytics. This position offers the opportunity to work on complex services, collaborating closely with cross-functional teams to drive successful project delivery.

Responsibilities

• Development and maintenance of data pipelines and automation scripts with Python
• Creation of data queries and optimization of database processes with SQL
• Use of bash scripts for system administration, automation and deployment processes
• Database and cloud technologies
• Managing, optimizing and querying large amounts of data in an Exasol database (prospectively Snowflake)
• Google Cloud Platform (GCP): Operation and scaling of cloud-based BI solutions, in particular
• Composer (Airflow): Orchestration of data pipelines for ETL processes
• Cloud Functions: Development of serverless functions for data processing and automation
• Cloud Scheduler: Planning and automation of recurring cloud jobs
• Cloud Secret Manager: Secure storage and management of sensitive access data and API keys
• BigQuery: Processing, analyzing and querying large amounts of data in the cloud
• Cloud Storage: Storage and management of structured and unstructured data
• Cloud monitoring: monitoring the performance and stability of cloud-based applications
• Data visualization and reporting
• Creation of interactive dashboards and reports for the analysis and visualization of business data with Power BI

Requirements

• Minimum of 4-6 years of experience in backend development, with strong expertise in BigQuery, Python and MongoDB or SQL.
• Strong knowledge of database design, querying, and optimization with SQL and MongoDB and designing ETL and orchestration of data pipelines.
• Expierience of minimum of 2 years with at least one hyperscaler, in best case GCP
• Combined with cloud storage technologies, cloud monitoring and cloud secret management
• Excellent communication skills to effectively collaborate with team members and stakeholders.
• 
  

Nice-to-Have:

• Knowledge of agile methodologies and working in cross-functional, collaborative teams.

• Design, implement, and maintain API-based applications and REST services.
• Proficiency with Node JS.
• Must have experience in cloud services Azure Cloud/AWS.
• Familiarity with database technology such as MySQL, PostgreSQL, and MongoDB.
• Develop high-quality, efficient, and scalable code.
• Understanding of Agile methodologies and SCRUM framework Strong debugging, analytical and problem-solving skills.
• Provide technical support during implementation efforts, working with technical team members and with business users as required to provide troubleshooting and solutions to technical issues.

About the Company

Our client is one of the leading TMT bar manufacturer and exporter in India. It is a well known group that achieves a turn over of 3000 Cr per annum. The group is setting a construction & architecture oriented omni channel B2B & B2C platform.

Job Description

Experience : 3-5Years

Requirement

• 3+ years of backend/full-stack development experience
• Proficient knowledge of a back-end programming language i.e Node.Js
• Experience with AWS services,Mongo DB
• Experience with RabbitMQ or similar queuing system
• Experience with Redis/ElasticSearch/PHP is a plus
• Familiarity with CI/CD pipeline tools like Jenkins
• Experience in handling a team
• Good at Design patterns, Algorithms, and Data structures.
• Have outstanding leadership skills, excellent people/communication, and negotiation skills
• Good knowledge of working with Git 

• User authentication and authorization between multiple systems, servers, and

           environments.

• Integration of multiple data sources and databases into one system

           Management of the hosting environment, including database administration

           and scaling an application to support load changes

.

Regards
Team Merito

About Climate Connect Digital

Our team is inspired to change the world by making energy more intelligent, greener, and affordable. Established in 2011 in London, UK, and now headquartered in Gurgaon, India. We have become a leading energy-AI software player from unassuming beginnings at the vanguard of accelerating the global energy transition.

In 2020 Renew Power, India's largest renewables developer, acquired Climate Connect. Following ReNew's listing on NASDAQ during summer 2021 Climate Connect has become the technology anchor of a new fully independent subsidiary - Climate Connect Digital. With backing from ReNew as the anchor investor to pursue an ambitious and visionary new strategy for rapid organic and inorganic growth.

Our mission has technology at its core and involves unlocking value through intelligent software, digitalisation, and horizontal integration' across the energy ecosystem. However, the application of computational power and machine learning to the energy sector has yet to be fully leveraged and can create massive value.

How do you fit in

Curious:You love learning about new tools and technologies

Exposure: You have plenty of experience in executing projects successfully. You

have a client-side exposure on project management

Team player: You have no problem working in a team setting. You can effectively

collaborate with people to reach a solution.

Problem solver: You are the person your peers turn to for solving problems.

Talented: You are an expert in database designing.

Honesty: You work diligently and honestly. You have strong moral principles.

Job Responsibilities

You will be working at the epicenter of energy transformation. You will be creating

data-driven software solutions for forecasting and scheduling data in the renewables power

market. Ultimately, through your contribution to the renewable energy revolution, you will be

doing your bit to mitigate the effects of climate change. These are a few things you can look

forward to working on:

Designing and implementing low-latency, high-availability, and performance

applications

Identifying and mitigating security-related threats to the application.

Using your expertise in database designing and application architecture planning for

Core & MVC projects

Debugging browser extensions & server tools

Solving complex technical issues

Ensuring quality projects are delivered within defined timelines

Designing new frameworks, debugging and modifying existing frameworks

Maintaining databases to ensure strong optimization and functionalities

Learning new technologies and how to design and implement Project Architectures

Job Requirements

PHP/Python

MVC Framework Laravel / Python Flask.

AJAX, HTML/HTML5 & CSS/CSS3 JavaScript and JavaScript frameworks(preferably jQuery)

Web services (SOAP, REST)

SQL and NoSQL scripting and databases like MYSQL and Mongo DB administration

Code versioning tools, such as Git

AngularJS / ReactJS

B. E / B. Tech / M. Tech / B. Sc in CS or IT

2-4 years of experience in the field

What's in it for you

We offer competitive salaries based on prevailing market rates. In addition to your introductory package, you can expect to receive the following benefits:

Flexible working hours and leave policy

Learning and development opportunities

Medical insurance/Term insurance, Gratuity benefits over and above the salaries

Access to industry and domain thought leaders.

At Climate Connect, you get a rare opportunity to join an established company at the

early stages of a significant and well-backed global growth push. We are building a remote-first organisation ingrained in the team ethos. We understand its importance for the success of any next-generation technology company. The team includes passionate and self-driven people with unconventional backgrounds, and we're seeking a similar spirit with the right potential.