Big Data Developer

• Minimum 4+ years of years

• Experience in designing, developing, and maintain backend services using C# 12 and .NET 8 or .NET 9

• Experience in building and operating cloud native and serverless applications on AWS

• Experience in developing and integrating services using AWS lambda, API Gateway , dynamo DB, Eventbridge, CloudWatch, SQS, SNS, Kinesis, Secret Manager, S3 storage, server architectural models etc.

Experience in integrating services using AWS SDK

• Should be cognizant of the OMS paradigms including Inventory Management, Inventory publish, supply feed processing, control mechanisms, ATP publish, Order Orchestration, workflow set up and customizations, integrations with tax, AVS, payment engines, sourcing algorithms and managing reservations with back orders, schedule mechanisms, flash sales management etc.

• Should have a decent End to End knowledge of various Commerce subsystems which include Storefront, Core Commerce back end, Post Purchase processing, OMS, Store / Warehouse Management processes, Supply Chain and Logistic processes. This is to ascertain candidates knowhow on the overall Retail landscape of any customer.

• Strong knowledge in Querying in Oracle DB and SQL Server

• Able to read, write and manage PLSQL procedures in oracle.

• Strong debugging, performance tuning and problem solving skills

• Experience with event driven and micro services architectures

We are looking for a skilled Backend Developer with strong experience in building, scaling, and optimizing server-side systems. The ideal candidate is proficient in Node.js, FastAPI (Python), and database design, with hands-on experience in cloud infrastructure on AWS or GCP.

Responsibilities:

Design, develop, and maintain scalable backend services and APIs using Node.js and FastAPI

Build robust data models and optimize performance for SQL and NoSQL databases

Architect and deploy backend services on GCP/AWS, leveraging managed cloud services. 

Implement clean, modular, and testable code with proper CI/CD and observability (logs, metrics, alerts)

Ensure system reliability, security, and high availability for production environments

Requirements:

2–5 years of backend development experience

Strong proficiency in Node.js, FastAPI, REST APIs, and microservice architecture

Solid understanding of PostgreSQL/MySQL, MongoDB/Redis or similar NoSQL systems

Hands-on experience with AWS or GCP, Docker, and modern DevOps workflows

Experience with caching, queueing, authentication, and API performance optimization

Good to Have:

Experience with event-driven architecture, WebSockets, or serverless functions

Familiarity with Kubernetes or Terraform

Job Location: Gurugram, Haryana, India

Industry: Artificial Intelligence

Key Responsibilities

🧪 AI/ML Research & Development

• Develop AI models to identify learning difficulty patterns based on multi-domain assessments.
• Train models to classify LD categories (e.g., dyslexia, dysgraphia) from scoring + qualitative inputs.
• Build recommendation logic for intervention strategies based on child profiles and educator feedback.

📊 Data Processing & Pipeline

• Design data pipelines to preprocess structured and semi-structured data (scores, observations, logs).
• Work with educator-generated reports and build logic to convert qualitative insights into ML-readable formats.

🔎 Model Evaluation & Iteration

• Perform evaluation using accuracy, recall, precision; but also focus on interpretability and ethical AI.
• Use techniques like SHAP, attention weights, or decision trees for explainability in recommendations.

🤝 Collaboration & Integration

• Work closely with frontend/backend teams to integrate AI insights into the assessment tool UI.
• Sync with special educators to validate model predictions and continuously improve the output quality.

• Core Java  (Collections,  Annotations, Threads, Exceptions)
  Java 8  ( Must)
  Spring Core (Must)
  Spring Boot, Spring Cloud, Micro services (Must)
  Angular / React , Bootstrap ( Good to have)
  Docker / Kubernetes  ( Good to have) Pivotal Cloud Foundry / Tanzu Services ( Good to have)

Role- Product manager 

We are seeking a Product Manager who will have a passion for agile, creating new delivery processes. This role includes leading cross-functional resources necessary for successful product definition where you will provide relevant business context for Agile software development team and leading team through planning exercises designed to help select development work for timeboxed execution.

Experience range- 8-14 Years

Responsibilities

•   Create and ensure a shared understanding of product vision and strategy amongst all members of the team.
•  Define a product portfolio from a product strategy that balances business need, opportunity, feasibility, and achievability.
•  Demonstrate platform thinking by abstracting feature requests into “classes of problems” and creating an extensible product which can be used for a variety of current and future needs.
•  Should have experience in Pre-sales.
• Backlog management, iteration planning, and elaboration of the user stories
• Guiding the team and organization on how to use Agile/Scrum best practices and values
• Partnering with Product Management to create and maintain a product backlog according to business value or ROI
• Create Product roadmap
• Understanding on NFR (Non-functional requirements.
• Understanding on Wireframing & Prototyping
• Lead the planning product release plans and set an expectation for delivery of new functionalities
• Providing an active role in mitigating impediments impacting successful team completion of Release/Sprint Goals.
• Understanding knowledge of the market, the users, and the roadmap for the product.
• Represents the customer, interfaces and engages the customer
• Evangelize and market: communicate the value proposition and bring an emotional connection to the product to all stakeholders and team members.
• Drive research and competitive analysis to identify ways to transform the user experience, and create competitive opportunities.
• Reframe business solutions into actual business needs 
• Articulate how the product fulfils the business strategy and creates value to internal and external stakeholders (e.g. clients).
• Understand the technical aspects of software development – including software engineering, architecture, and technical tradeoffs – enough to ensure that technical choices don’t conflict with the product vision and strategy, but rather enable them.
• Partner with engineering leads and architects so that decisions on product and technology direction are not made in a vacuum.
• Make data-driven decisions: support portfolio choices with evidence from analytics and research.
• Align product strategies with other product managers, articulate how the product strategy fits into the broader ecosystem.
• Nurture regular communication and connection with business stakeholders to ensure that product strategy stays aligned with business priorities, and also to keep stakeholders abreast of learnings from customers that impact product direction.
• Always be “discovering” what customers and users need. Get out of the building: visit clients and speak with users/customers. Always be learning from user research conducted during product development cycles.
• Partner with Product Owners to ensure constant alignment with business and customer goals, and outcome expectations for delivery.

Requirements

• About 7+ years of overall exp and 3-4 years of relevant experience working as a Product Manager in a technology environment
• Solid Agile experience
• Understanding of technology; Language and Applications
• Additonal exp with API Banking Domain would be plus to the role
• Proven ability to define a set of requirements that pinpoint business challenges and identify technical and business changes required to address them.
• Ability to communicate clearly and concisely across technology and the business teams.
• Experience supporting/rolling out initiatives to commercial teams
• Experience with demand generation, account/territory management, opportunity management and contact management capabilities, functionality and workflows.

About OJ Commerce: 

OJ Commerce is a fast-growing, profitable online retailer based in Florida, USA with a full-fledged India office based in Chennai driven by a sophisticated, data-driven system to run the operations with virtually no human intervention. We strive to be the best-in-class ecommerce company delivering exceptional value to customers by leveraging technology, innovation and brand-partnerships to provide a seamless & enjoyable shopping of high-quality products at the best prices to our customers.

Responsibilities:

Work with business-stakeholders to understand requirements, prototype, build and deploy it.

CRUD the backend code you own keeping maintenance, performance and security in mind.

Keep up breast of latest technologies and its ecosystem and adopt ones that aid safe product delivery at speed.

Automate the boring and mundane stuff for you prefer to be productive than being busy.

We are flat. Be responsible for professional growth of self and the team. 

• Tune application for performance.
• Take initiatives and manage change to work towards business goals at speed without compromising safety.
• Coach full-stack developers on backend skills.
• Provides problem resolution support, specific to application issues, identifies and resolves problems in application software, determines symptoms and ensures accurate problem definition

Develop functional, architectural and other documentation as required for productive functioning of teams.

• Be the brand ambassador for OJ Commerce by speaking at meetups, conferences, etc.
• We are fluid. Be ready for changing dynamics in responsibilities from time to time. Exciting isn't?
• Take the lead in digital transformation of legacy applications.

What you need to shine?

• You have the prior experience in modernising legacy applications.
• You are a passionate hands-on developer with deep experience in building enterprise grade software in Microsoft ASP.NET Core, ASP.NET MVC, Web API, SOA, Micro-Services and RESTful Services with knowledge of SQL Server database.
• You have the ability to see and work on the big picture (Application Architecture) and devilish details (Complex Code).
• Strong experience in developing web applications using C#, VB.Net, .NET, LINQ, Net Framework 4.0, MVC 3/4/5, ASP.NET Web API, .Net Core etc.
• You are Cloud savvy, preferably Google Cloud.
• You have rich experience in Object-Oriented Programming (OOP) with good knowledge of practical design-patterns and its applications.

Hands-on experience in building SOA or Micro-services preferably on .NET Core.

Proven Architectural skills with high standards in Code quality

Knowledge of ReactJS/Typescript would be added advantage.

Practical experience in Agile development methodologies of using CI/CD.

Extreme Programming (TDD) experience is sought after by us.

What we Offer

• Greenfield opportunity to transform legacy backend applications to latest technology stack.
• Fast-paced start-up environment: This is not for the faint hearted; you need grit and passion as much as you need the core skills.
• Work in an interdisciplinary team where learning from one another and developing solutions cross-functionally is a key part of our culture.
• Golden opportunity to make history by making big business impact.
• Competitive salary to take good care of self and family.
• Insurance Benefits: Medical and Accident cover.
• Flexible Working Hours