Senior Java Developer

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.

Looking for Java Developer| Mumbai to join a team of rockstar developers. The candidate should have a minimum of 4+ yrs. There are multiple openings. If you're looking for career growth & a chance to work with the top 0.1% of developers in the industry, this one is for you! You will report into IIT'ans/BITS grads with 10+ years of development experience + work with F500 companies (our customers)

Company Background - CodeVyasa is a Software Product-Engineering and Development company that helps Early-stage & Mid-Market Product companies with IT Consulting, App Development, and On-demand Tech Resources. Our Journey over the last 3 years has been nothing short of a roller-coaster. Along our way, we've won some of the most prestigious awards while driving immense value to our customers & employees. Here's the link to our website (codevyasa.com). To give you a sense of our growth rate, we've added 70+ employees in the last 6 weeks itself and expect another 125+ by the end of Q1 2024

Requirements:

•  Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).
•  Minimum of 4 years of experience as a Java Developer.
•  Proficiency in Hibernate development.
•  Aptitude for learning new technologies quickly.
•  Good problem-solving and analytical skills.

What We Offer:

•  Glassdoor rating of 4.8, indicating high employee satisfaction.
•  Free healthcare benefits.
•  Strong focus on upskilling and professional development opportunities.
•  Diverse and inclusive work environment.
•  Competitive compensation and benefits package.
•  Emphasis on maintaining a healthy work-life balance

Job Description:

WHO WILL LOVE THIS JOB?

• Attracted to creativity, innovation, and eagerness to learn

• Alignment to a fast-paced organization and its short-term and long-term goals

• An engaging, open, genuine personality that naturally encourages interaction with individuals at all levels

• Strong value system and sense of ethics • Absolute dedication to premium quality

• Want to build strong core product team capable of developing solutions for complex, industry-first problems.

• Build balance of experience, knowledge, and new learnings

ROLES AND RESPONSIBILITIES?

• Driving the success of the software engineering team at Datamotive.

• Collaborating with senior and peer engineers to prioritize and deliver features on the roadmap.

• Build strong development team with focus on building optimized & usable solutions.

• Research, Design & Develop distributed solution to handle workload mobility across multi & hybrid cloudsr

• Assist in Identifying, Researching & Designing newer features and cloud platform support in areas of disaster recovery, data protection, workload migration etc.

• Assist in building product roadmap.

• Conduct pilot tests to assess the functionality of newly developed programs.

• Front facing customers for product introduction, knowledge transfer, solutioning, bugs triaging etc.

• Assist customers by giving product demos, conducting POCs, trainings etc.

• Manage Datamotive infrastructure, bring innovative automation for optimizing infrastructure usage through monitoring and scripting. • Design test environments to simulate customer behaviours and use cases in VMware vSphere, AWS, GCP, Azure clouds. • Help write technical documentation, generate marketing content like blogs, webinars, seminars etc.

TECHNICAL SKILLS?

• Experience in software development with relevant domain understanding of Data Protection, Disaster Recovery, Ransomware Recovery.

• A strong understanding and demonstrable experience with at least one of the major public cloud platforms (GCP, AWS, Azure or VMware)

• A strong understanding and experience of designing and developing architecture of complex, distributed systems.

• Insights into development of client-server SaaS applications with good breadth across networking, storage, micro-services, and other web technologies.

• Experience of building and leading strong development teams with systems product development background

• Programming knowledge in either of GO Lang, C, C++, Python or Shell script.

• Should be a computer science graduate with strong fundamentals & problem-solving abilities.

• Good understanding of virtualization, storage and cloud platforms like VMware, AWS, GCP, Azure and/or Kubernetes will be preferable

• 4 year degree or equivalent experience
• 8 to 13 years of software development experience 
• Demonstrates broad and deep expertise in any programming languages(Java, GoLang) and open source frameworks (e.g., Spring Boot, Micronut).
• Designs, develops, and approves end-to-end functionality of a product line, platform, or infrastructure and microservices.
• Must have exposure to at least one cloud product/platform development.
• Working knowledge of any one client side framework like ReactJS or Angular, etc.
• Should have exposure to one or more databases like Cassandra, MongoDB, Graph, Redis, Elastic Search and Postgres.

• 5-7+ years of commercial Java development experience
• Experience with well known Open Source frameworks/libraries, like Spring Boot
• Work experience with Docker
• Microservice experience
• Experience with AWS like ECS, Lambda, SQS, RDS, Kinesis streams
• Familiar with iterative development
• Upper-intermediate level of English
• Solid understanding of communication and network protocols (TCP/IP, HTTP).
• At ease with Unix/Linux
• Excellent analytical and debugging skills
• Familiar with both SQL and noSQL databases (MySQL, DynamoDB, Memcached, Redis)
• Practical experience with scaling applications to big user numbers is a plus
• Experience with other programming languages is a plus.

• Must have experience with Amazon Web Services (AWS)
• Experience with Python/Node.JS/Typescript
• At least 2+ years as back-end software developer
• A deep understanding of the benefits of the Microservice and serverless paradigms
• Prepared technical documentation, and understand why it’s important
• Understanding of database principals: SQL and NoSQL
• Collaboration and communication skills (you’ll be working with clients and internal teams)
• An understanding of programming fundamentals (OOP, data structures, algorithms)
• Familiarity and comfort with REST API, Postman
• The ability to work independently or within a team structure.
• A “lead by example” attitude, and motivation to deliver work you’re proud of

Job Description: Java Full Stack Developer 

Skills 

Primary 

• Java, J2EE, Spring MVC 
• Hibernate or other ORM 
• Web technology and security, REST framework 
• Any one UI technology and ready to learn a new one. 
• Database knowledge (MySQL, Oracle, Postgres) 
• Unit testing frameworks 
• Version Control (Eg., Git) 

Good To Have 

• JQuery, XML, HTML5, AngularJS/Angular and other UI technology
• Shell Scripting 
• Python 

Key Responsibilities 

• Contribute in all phases of the development lifecycle
• Write well designed, testable, efficient code
• Ensure designs are in compliance with specifications
• Prepare and produce releases of software components
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
• Stay up-to-date on emerging technologies 

Requirements 

• 2 to 5 years of work experience as a Java Developer or similar role 
• BS/MS degree in Computer Science, Engineering or a related subject 
• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE platforms
• Object Oriented analysis and design using common design patterns. 
• Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in developing web applications using at least one popular web framework
•  Experience with test-driven development

Job Benefits and Compensation 

• WebShar offers a very competitive salary depending on experience 
• 24 days paid vacation each year (CL, PL, SL), earned at a rate of 2 days per month. 
• MacBook Pro 
• Flexible time / and availability to work from home from time to time 
• Medical insurance 
• Team outing and lunches, 
• Reimbursement as per HR policies 

○ Internet reimbursement upto 1500 

○ Commutation reimbursement upto 6000 

○ ISD reimbursement