UI/UX Designer

Position: QA Engineer – Machine Learning Systems (5 - 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

The QA Engineer will own quality assurance across the ML lifecycle—from raw data validation through feature engineering checks, model training/evaluation verification, batch prediction/optimization validation, and end-to-end (E2E) workflow testing. The role is hands-on with Python automation, data profiling, and pipeline test harnesses in Azure ML and Azure DevOps. Success means probably correct data, models, and outputs at production scale and cadence.

Key Responsibilities:

Test Strategy & Governance

• ○ Define an ML-specific Test Strategy covering data quality KPIs, feature consistency
• checks, model acceptance gates (metrics + guardrails), and E2E run acceptance
• (timeliness, completeness, integrity).
• ○ Establish versioned test datasets & golden baselines for repeatable regression of
• features, models, and optimizers.

Data Quality & Transformation

• Validate raw data extracts and landed data lake data: schema/contract checks, null/outlier thresholds, time-window completeness, duplicate detection, site/material coverage.
• Validate transformed/feature datasets: deterministic feature generation, leakage detection, drift vs. historical distributions, feature parity across runs (hash or statistical similarity tests).
• Implement automated data quality checks (e.g., Great Expectations/pytest + Pandas/SQL) executed in CI and AML pipelines.

Model Training & Evaluation

• Verify training inputs (splits, windowing, target leakage prevention) and hyperparameter configs per site/cluster.
• Automate metric verification (e.g., MAPE/MAE/RMSE, uplift vs. last model, stability tests) with acceptance thresholds and champion/challenger logic.
• Validate feature importance stability and sensitivity/elasticity sanity checks (price/volume monotonicity where applicable).
• Gate model registration/promotion in AML based on signed test artifacts and reproducible metrics.

Predictions, Optimization & Guardrails

• Validate batch predictions: result shapes, coverage, latency, and failure handling.
• Test model optimization outputs and enforced guardrails: detect violations and prove idempotent writes to DB.
• Verify API push to third party system (idempotency keys, retry/backoff, delivery receipts).

Pipelines & E2E

• Build pipeline test harnesses for AML pipelines (data-gen nightly, training weekly,
• prediction/optimization) including orchestrated synthetic runs and fault injection
• (missing slice, late competitor data, SB backlog).
• Run E2E tests from raw data store -> ADLS -> AML -> RDBMS -> APIM/Frontend, assert
• freshness SLOs and audit event completeness (Event Hubs -> ADLS immutable).

Automation & Tooling

• Develop Python-based automated tests (pytest) for data checks, model metrics, and API contracts; integrate with Azure DevOps (pipelines, badges, gates).
• Implement data-driven test runners (parameterized by site/material/model-version) and store signed test artifacts alongside models in AML Registry.
• Create synthetic test data generators and golden fixtures to cover edge cases (price gaps, competitor shocks, cold starts).

Reporting & Quality Ops

• Publish weekly test reports and go/no-go recommendations for promotions; maintain a defect taxonomy (data vs. model vs. serving vs. optimization).
• Contribute to SLI/SLO dashboards (prediction timeliness, queue/DLQ, push success, data drift) used for release gates.

Required Skills (hands-on experience in the following):

• Python automation (pytest, pandas, NumPy), SQL (PostgreSQL/Snowflake), and CI/CD (Azure
• DevOps) for fully automated ML QA.
• Strong grasp of ML validation: leakage checks, proper splits, metric selection
• (MAE/MAPE/RMSE), drift detection, sensitivity/elasticity sanity checks.
• Experience testing AML pipelines (pipelines/jobs/components), and message-driven integrations
• (Service Bus/Event Hubs).
• API test skills (FastAPI/OpenAPI, contract tests, Postman/pytest-httpx) + idempotency and retry
• patterns.
• Familiar with feature stores/feature engineering concepts and reproducibility.
• Solid understanding of observability (App Insights/Log Analytics) and auditability requirements.

Required Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.
• 5–7+ years in QA with 3+ years focused on ML/Data systems (data pipelines + model validation).
• Certification in Azure Data or ML Engineer Associate is a plus.

Why should you join Big Rattle?

Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.

Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.

What We Offer:

• Opportunity to work on diverse projects for Fortune 500 clients.
• Competitive salary and performance-based growth.
• Dynamic, collaborative, and growth-oriented work environment.
• Direct impact on product quality and client satisfaction.
• 5-day hybrid work week.
• Certification reimbursement.
• Healthcare coverage.

How to Apply:

Interested candidates are invited to submit their resume detailing their experience. Please detail out your work experience and the kind of projects you have worked on. Ensure you highlight your contributions and accomplishments to the projects.

• Write clean, scalable code using .NET programming languages.
• Developing the web based software using computer programming languages such as Asp.net, Sql Server, MVC, C# & Entity framework.
• Revise, update, re-factor and debug code.
• Participate as a team member in all phases of S/W lifecycle, including the analysis and design of S/W systems.
• Participate in integrated testing of product/ package.
• Deploying applications on client server.
• Making changes to existing web applications according to the feedback received from the end users or clients.
• Design and develop REST API’s using ASP.NET/C#.

Job Role

Understand the requirements and Develop Web Applications independently

coordinate/prepare report status on development tasks: design, unit test, code, source control Job Responsibility Should be able to code independently or with minimal support from leads.

Should be able to adhere to all customer processes.

Should be able to communicate with customer teams.

Should be able to understand the application, design and translate the same to code.

Should be able to write unit test cases

Responsibilities

• Create and federate audience segments; both ad hoc using SQL and via internal CDP, to support business units and power their digital marketing channels
• Build, maintain, and troubleshoot Github jobs and Salesforce Marketing Cloud automation that power our scalable recurring communications, such as lifecycle touchpoints and surveys
• Work across numerous internal and external marketing platforms (Salesforce Marketing Cloud, Audience Platform, publisher, and social partners, etc)

Qualifications

• Intermediate SQL programming experience required
• Minimum 2 years’ experience working with relational databases
• Ability to collaborate and communicate effectively with a diverse group of partners including marketing, technical teams, and agencies
• Familiarity with CRM platforms (eg Salesforce Marketing Cloud) and publisher/social partners (eg Facebook, DV360)

• 5 years of experience as Java/Jee Developer, Springboot
• Good knowledge of OOPS concepts.
• Experience in Java8, JSP, Spring Core, Spring MVC, Spring Rest & Spring JPA Repository
• Experience in Hibernate, relational databases and sql.
• Experience in Rest API development.
• Experience in implementation of Jasper Reports
• Familiar with Git & Maven

About us:

we are recruiting company specialized in IT based in Tokyo, Japan. we are expanding and looking for potential candidate to work as a recruiter. There will be ample of opportunities to explore and learn specially advanced and international market like Japan.

We are looking for a Senior IT Recruiter with minimum 5 years of full-cycle recruiting experience, from talent sourcing and attracting candidates to interviewing and hiring great employees.

Responsibilities:

• Develop and update job descriptions and job specifications.
• Source and recruit candidates by using databases, social media etc.
• Screen candidates resumes and job applications.
• Conduct interviews using various reliable recruiting and selection tools/methods to filter candidates within schedule.
• Assess applicants’ relevant knowledge, skills, soft skills, experience and aptitudes.
• Act as a point of contact and build influential candidate relationships during the selection process.
• Coordinate with candidate and client.

Requirements

• Proven work experience as a IT Recruiter
• Hands on experience with various selection processes (video interviewing, phone interviewing, reference check etc.)
• Excellent communication and interpersonal skills
• Familiarity with HR databases, Applicant Tracking Systems (ATS).

We have best incentives like Weekly Mini Rewards, Quarterly, Bonus on the top of salary, team gatherings.

Profile: Java developer (2-4 years) - Noida

MUST Have: Core Java, data structure

NP: Immediate to 30 Days

Salary : Upto 9 LPA

MUST Haves: Java 1.8, Core Java, Data structure

Requirements:

• Java 1.8 version with Collections, Multithreading working knowledge –(Mandatory)
• Data Structures, BPM-Alfresco & Groovy 

Job Description:

Design skills

Strong working knowledge on various design patterns such as MVC, MVVM, DDD and any custom/hybrid framework as designed by the Architects.
Strong uderstanding in building Single Page Application

Process skills

Built application leveraging Agile DevOps principles and Azure DevOps toolset as part of SCRUM team


Technical skills

• Strong coding and work experience in Front End coding using Angular 8, BackBone, Bootstrap.
• Should have experience on 3rd party tools like PDF.Js (Generate PDF), SheetJS (Export Excel sheet), HighCharts or CharJS (Generate Charts and Graph).
• Should have good understanding of web servers such as IIS and Front-end runtimes using Node.js/NPM.
• Strong debugging skills using browser based Front end application written in Angular 8
• Strong knowledge and understanding of data sharing medium using JSON, XML.
• Should have used IDE such as Visual Studio and Visual Studio Code for Front-end development.
• Create Unit test cases using Jasmine and have all critical flows covered.
• Understanding of MS Build and MS Test as part of Azure DevOps pipelines
• Ability to triage defects in QA, UAT and Production and provide fix with quick turn around time.

• 5+ years of building SPA web solutions using Angular 8 , BackBone, Bootstrap
• 5+ years building HTML5 complaint pages
• 3+ years of experience using TypeScript
• 3+ years of writing automated testing using Jamine or others
• 3+ years of using TFS for Build and automated testing
• 1+ years of experience using Security Assessment Tool like Fortify 360 or IBM APP Scan
• 1+ years of experience using code quality assessment tool like SonarQube
• 1+ years of experience using API Management tool like Swagger
• 1+ years of experience on APM tools like DynaTrace
• 1+ years leveraging Azure DevOps

• Understanding of cloud based deployment using containers is plus
• Understanding of JS frameworks like Vue or React is plus