
Backend Engineer (MongoDB / API Integrations / AWS / Vectorization)
Position Summary
We are hiring a Backend Engineer with expertise in MongoDB, data vectorization, and advanced AI/LLM integrations. The ideal candidate will have hands-on experience developing backend systems that power intelligent data-driven applications, including robust API integrations with major social media platforms (Meta, Instagram, Facebook, with expansion to TikTok, Snapchat, etc.). In addition, this role requires deep AWS experience (Lambda, S3, EventBridge) to manage serverless workflows, automate cron jobs, and execute both scheduled and manual data pulls. You will collaborate closely with frontend developers and AI engineers to deliver scalable, resilient APIs that power our platform.
Key Responsibilities
- Design, implement, and maintain backend services with MongoDB and scalable data models.
- Build pipelines to vectorize data for retrieval-augmented generation (RAG) and other AI-driven features.
- Develop robust API integrations with major social platforms (Meta, Instagram Graph API, Facebook API; expand to TikTok, Snapchat, etc.).
- Implement and maintain AWS Lambda serverless functions for scalable backend processes.
- Use AWS EventBridge to schedule cron jobs and manage event-driven workflows.
- Leverage AWS S3 for structured and unstructured data storage, retrieval, and processing.
- Build workflows for manual and automated data pulls from external APIs.
- Optimize backend systems for performance, scalability, and reliability at high data volumes.
- Collaborate with frontend engineers to ensure smooth integration into Next.js applications.
- Ensure security, compliance, and best practices in API authentication (OAuth, tokens, etc.).
- Contribute to architecture planning, documentation, and system design reviews.
Required Skills/Qualifications
- Strong expertise with MongoDB (including Atlas) and schema design.
- Experience with data vectorization and embeddings (OpenAI, Pinecone, MongoDB Atlas Vector Search, etc.).
- Proven track record of social media API integrations (Meta, Instagram, Facebook; additional platforms a plus).
- Proficiency in Node.js, Python, or other backend languages for API development.
- Deep understanding of AWS services:
- Lambda for serverless functions.
- S3 for structured/unstructured data storage.
- EventBridge for cron jobs, scheduled tasks, and event-driven workflows.
- Strong understanding of REST and GraphQL API design.
- Experience with data optimization, caching, and large-scale API performance.
Preferred Skills/Experience
- Experience with real-time data pipelines (Kafka, Kinesis, or similar).
- Familiarity with CI/CD pipelines and automated deployments on AWS.
- Knowledge of serverless architecture best practices.
- Background in SaaS platform development or data analytics systems.

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About Us:
REConnect Energy’s GRIDConnect platform helps integrate and manage energy generation and consumption for 1000s of renewable energy assets and grid operators. We are currently serving customers across India, Bhutan and the Middle East with expansion planned in US and European markets.
We are headquartered in Central Bangalore with a team of 150+ and growing. You will join the Bangalore based Engineering team as a senior member and work at the intersection of Energy, Weather & Climate Sciences and AI.
Responsibilities:
● Engineering - Take complete ownership of engineering stacks. Define and maintain software systems architecture for high availability 24x7 systems.
● Leadership - Lead a team of engineers and analysts managing engineering development as well as round the clock service delivery. Provide mentorship and technical guidance to team members and contribute towards their professional growth. Manage weekly and monthly reviews with team members and senior management.
● Product Development - Contribute towards new product development through engineering solutions to product requirements. Interact with cross-functional teams to bring forward a technology perspective.
● Operations - Manage delivery of critical services to power utilities with expectations of zero downtime. Take ownership for uninterrupted product uptime.
Requirements:
● Bachelor's or Master’s degree in Computer Science, Software Engineering, Electrical Engineering or equivalent
● Proficient in python programming along with Frameworks like Django/Fast Api/Flask and Java frameworks like Spring, Hibernate, SpringBoot, etc
● Debug and resolve technical issues that arise during the development or after deployment at various stages.
● Experience in databases including MySQL and NoSQL
● Experience in designing, developing and maintaining high availability systems.
● Experience in MVC pattern, Tomcat, Git, and Jira.
● Experience working with AWS cloud platform.
● 4-5 years of experience building highly available systems
● 2-3 years experience leading a team of engineers and analysts
● Strong analytical and data driven approach to problem solving
Our Tech Stack :
- PHP, Code igniter, MVC Framework
- Node JS, React JS, JavaScript, HTML, CSS
- Ajax, JQuery - Redis, SQL/Maria DB
- Linux
Few Challenges we are working on right now:
- Working on various optimization to improve page speed.
- Improving Server Response & Load balancing.
- Server side development on various projects.
- Customized CRM to increase leads handled per salesperson to double a day.
- Create a platform for users to create
Job Objectives:
- Integration of user
- facing elements developed by front
- end developers with server
- side logic
- Optimize web applications to maximize speed and scale. Support diverse clients from high
- powered desktop computers to small mobile devices
- Optimization of the application for maximum speed and scalability
- Implementation of security and data protection
- Collaborate with senior management, operations & business team
- Building Rest APIs and maintain Database optimizations
Looking For:
- Great understanding of Node, react, Express, Socket.io, MVVM framework
- Worked on e- commerce website, server handling and deployments scripts
- The one who has worked on customer facing product for 2 years
- Strong knowledge of MEAN stack ( Min 1 yr professional working experience) with basic understanding of LAMP
- Experience designing scalable, fault tolerant systems and databases.
We are seeking a skilled and enthusiastic .NET Core Developer to join our dynamic team. As a .NET Core Developer, you will play a crucial role in designing, developing, and maintaining high-quality software solutions using the latest Microsoft technologies.
Do you have what it takes?
· Proficient in C, C++ development, OS concepts, Data Structures, Distributed computing, and Algorithms.
· Actively engaged in projects related to architecture and design (architecture, design patterns, reliability, and scaling).
· Excellent problem-solving capability with strong fundamentals in Computer Science.
· Highly proficient in data structures and algorithms.
· Ability to pick up new technologies rapidly to convert specifications to low level design.
· Ability to clearly communicate the intent and approach when producing a code design document.
How can you contribute to our success?
· Develop frontend as well as backend components for delivering product on cloud platforms.
· Participate in activities that lead up to the code design. This may include activities such as developing prototypes, proof of concept, compare pros and cons of various implementation choices being considered and recommending the most appropriate one.
· Mentor and influence junior developers to adhere to good coding standards and become quality conscious.
· Review critical pieces of code that are developed as per this code design.
· Ensure that the code being delivered is of the highest quality.
· Ensure appropriate unit tests and functional as well as non-functional tests are considered.
· Conceptualize and work towards building processes, methodology, and tools to improve team’s ability to deliver high quality software.
You will be a part of the engineering team who focuses on user onboarding, licensing, marketplace stores, Sales analytics dashboard and CRM’s integrations.
Your role at Trimpixel
- Design, develop, and maintain integrations with multiple file types, existing software packages
- Build software for a first-class onboarding experience
- Collaborate with sales, marketing and engineering teams for requirements through to delivery
- Design and implement marketplace, Sales Analytics Pipeline and CRM integrations
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Test software to ensure responsiveness and efficiency
- Troubleshoot, debug and upgrade software
- Create security and data protection settings
Core Competency:
• Extensiveexperiencewith C# and ASP.net/.NETCore 2.0 / .NET WebAPI core framework framework • concept's and fundamentals/ MVC and EF. • REST Web services&API Experience • Strong architectural knowledge with two or more of - MicroServices, 12 FactorApplications and • EventDriven architectures • Messaging knowledge(Topics, Queues & Publish Subscribe) • Knowledge of AWS, Docker and Kubernetes • Experience with database development including relational database design, SQL, and ORM • Agile Delivery experience • Deploying .Net Core web application/API in Windows and Linux • Experience with web developmenttechnologiesincludingASP.NET, MVC3, EF, HTML, JavaScript, • JQuery, AJAX and CSS, LINQ. • Experience with core Microsoft.Net technologies including WCF, LINQ, and EF • Experience designing and developing enterprise-grade software • Experience with source control management systems and deployment environment • Experience with debugging, performance profiling and optimization. • Comprehensive understanding of object-oriented and service-oriented applicationdevelopment,techniques and theories • Internally motivated, able to work proficiently both independently and in a team environment • Strong communication skills with both internal team members and external business stakeholders • Experience with user interface design and prototyping
Key Responsibilities:
Experience with developing/implementing web applications built on PHP technologies.
Provide technical guidance and recommendations to other team members as required.
Development responsibilities include doing code review / bug analysis, analyzing development and impacts.
Provide effort planning estimates for application change requests and defect resolutions.
Run daily stand-up meetings as required and in concert with the program technical lead .
Assist in establishing and updating application release plans.
Manage and perform Web application deployments.
Perform root cause analysis for production issues and provide resolutions in a timely fashion .
Develop and maintain technical documentation Skills Requirement:
Minimum 1 years of experience with team leading
Minimum 2 to 3 year experience in laravel mysql
Excellent knowledge of REST services
Excellent knowledge of RDBMS concepts and database designing
Good Communication skills in Malayalam and English
Problem solving and decision making skills
Prior experience in handling a team.
Agile background is a plus.
Ready to adapt / learn a new programming language / tools / framework based on project requirements.
Able to provide technical leadership to a team of software engineers.
Your Opportunity
You will primarily be responsible for implementing features & building platforms to enable on-device and device/server-side combined ML workflows. You will possess strong skills in object-oriented software design and programming. You are excited about developing new features, maintaining existing code, fixing bugs, and contributing to overall system design.
Your Impact
To design, architect, develop and maintain the backend for AI products by working closely with the Engineering Team. To ensure successful consumption of Saarthi.ai technology by APIs, SDKs, or Applications, thereby enabling productization and monetization of the AI solutions.
What You’ll Do
· Work with development teams and product managers to ideate software solutions
· Design server-side architecture
· Along with SAAS application deliverables even the client-side deliverables need to be taken care
· Develop and manage well-functioning databases and applications
· Write effective APIs
· Test software to ensure responsiveness and efficiency
· Troubleshoot, debug and upgrade software
· Create security and data protection settings
· Build features and applications with a mobile responsive design
· Write technical documentation
· Work with data scientists and analysts to improve software
What You Bring
· Proven experience as a Back-End Developer or similar role.
· Experience developing desktop applications.
· Strong working experience with back-end development using Node.JS, JavaScript.
· Strong knowledge of databases (MongoDB, PostgreSQL).
· Experience with System Design and Architecture.
· Familiarity with common stacks.
· Familiarity with Parallel Threading, Concurrent calling and Aggregation Queries.
· Ability to write quality unit tests
· Setting up CI/CD, and integrating with logging and monitoring systems for the products or platforms
· Excellent communication and teamwork skills.
· Degree in Computer Science, Statistics or relevant field
About the job
We focus on client adoption of disruptive technologies, technology architecture and providing specialized skills related to integration, custom software engineering, testing, application modernization, agile and more. We help our clients with the most complex projects including working in open web platforms, DevOps platforms as well as intelligent Computing and Architecture enhancement.
We are looking for hands on, smart thinking Applications developer to join our fast-growing team of talented professionals. You will have the opportunity to work on large enterprise solutions and deliver solutions that deliver business performance for our customers.
WORK YOU’LL DO
- Design and develop microservices/APIs using either Java/Spring boot, ISTIO, Kubernetes, Docker, CI / CD Pipelines
- You would scale micro services using Kafka or similar messaging systems.
- Collaborate with clients, architects, and application architectures to understand the operational objectives and purpose of the future system integration.
- Understand the points of integration between the different systems and highlight the potential risks associated with the delivery of solutions
- Collaborate with Functional Designers and Developers in order to find best solutions
- Produce detailed functional and technical specifications.
- Assist in producing solutions with threat assessments and associated security awareness.
WHAT WE ARE LOOKING FOR
- 5- 8 years of hands-on experience designing and developing microservices using either Java/Spring Boot
- 3-5 years of experience with system integration
- Minimum of 3 years of relevant experience with API concepts and technologies such as REST, JSON, XML, SOAP, YAML, GraphQL, and Swagger
- Experience developing within agile methodology using CI/CD pipeline
- Experienced in 3-tier, n-tier, cloud computing, microservices architectures and SOA.
- Good knowledge of integration architectures
- Experience supporting and/or implementing complex integration projects
- Excellent client management skills
- Experience with Data modelling would be an asset
QUALIFICATIONS
- Experience of working in an Agile Environment
- Ability to drive design from Stories and Requirements
- Adept at UML, Design Patterns, Reusable Services Development,
- Knowledge on Scaling Microservices
Key Skills Required :
- Proficiency in Python 3.x based web and backend development
- Solid understanding of Python concepts
- Strong experience in building web applications using Django
- Experience building REST APIs using DRF or Flask
- Experience with some form of Machine Learning (ML)
- Experience in using libraries such as Numpy and Pandas
- Hands on experience with RDBMS such as Postgres or MySQL including querying
- Comfort with Git repositories, branching and deployment using Git
- Working experience with Docker
- Basic working knowledge of ReactJs
- Experience in deploying Django applications to AWS,Digital Ocean or Heroku
Responsibilities :
- Understanding requirement and congributing to engineering solutions at a conceptual stage to provide the best possible solution to the task/challenge
- Building high quality code using coding standards based on the SRS/Documentation
- Building component based, maintainable, scalable and reusable backend libraries/modules.
- Building & documenting scalable APIs on the Open Spec standard
- Unit testing development modules and APIs
- Conducting code reviews to ensure that the highest quality standard are maintained
- Securing backend applications and APIs using industry best practices
- Troubleshooting issues and fixing bugs raised by the QA team efficiently.
- Optimizing code
- Building and deploying the applications








