Digital Marketing lead

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.

 Be a full Individual Contributor 

Design(frontend dev) Develop Deploy Debug ! Expert in  all things - Frontend Backend and Deployment 

3Years + on MEAN Stack

Used Rabbit MQ or Kafka

Design product architecture , assign work to junior developers , train interns and manage end to end development activity

Good at  AWS Webservices- AWS- Ec2, Lambda, 

Confident at building high throughput, low latency , and highly Scalable applications 

 Preferences :or pluss

Elastic Search , Kubernates 

Served a Lead role in the present company 

Worked on financial products

Worked in smaller companies with individual contribution

Opportunities to work on:

Block chain, Elastic Search ,Kubernates 

Skills 

Excellent core technical  skills 

Can learn any new language and provide solution

Passionate about coding 

Full problem solver 

Positive attitude and inter personal skills

Who are We??

Billion Bonds Finance 

You may have heard of Payment Gateways..Have you ever heard of Account Gateway????

We are a new age Finance company managing debts of about 40 CR...We are developing the next generation digital only bank focussed towards Gen Z..!Are you the one who would like to Lead the Core team for changing the boring  User Exprience in Banking?

Position: Senior .NET Core Developer( Remote , Base Location : Chennai)

Experience: 5-8 years

Responsibilities:

As a Senior .NET Core Developer, you will play a key role in architecting, designing, and implementing robust and scalable web applications and distributed systems. Your responsibilities will include:

• Web API Development: Designing and implementing secure and efficient Web APIs, ensuring seamless integration with various client applications.
• Storage Management: Overseeing storage accounts and implementing strategies for efficient data storage and retrieval in cloud environments, leveraging services like Azure Storage.
• Messaging Architecture: Designing and implementing messaging queues for asynchronous communication between microservices, ensuring a decoupled and scalable system.
• Background Jobs: Developing and optimizing background job processes to handle tasks such as batch processing and asynchronous operations.
• Distributed Systems: Architecting and maintaining distributed systems, ensuring high availability, fault tolerance, and optimal performance.
• Technology Stack: Utilizing .NET Core 6 and staying updated with the latest technologies and best practices in the .NET ecosystem.
• Error Handling and Retries: Implementing robust error handling mechanisms and strategies for automatic retries to enhance system reliability.
• Database Management: Designing and optimizing database schemas, utilizing ORMs for efficient data access, and ensuring data integrity.
• Memory Management and Performance: Implementing efficient memory management practices and optimizing code for performance.
• Async Programming: Leveraging asynchronous programming techniques for handling concurrent operations and improving application responsiveness.

Qualifications:

• Bachelor's or Master's degree in Computer Science or a related field.
• Extensive experience (5-8 years) in .NET Core development.
• Proven expertise in designing and implementing scalable web applications and distributed systems.
• Strong knowledge of Web API development, storage management, messaging architectures, and background processing.
• Experience with error handling, retries, and implementing robust solutions for fault tolerance.
• Proficiency in database design, ORMs, and data access optimization.
• Familiarity with the latest .NET technologies, especially .NET 6.
• Excellent problem-solving and debugging skills.
• Strong understanding of memory management and performance optimization.
• Experience in asynchronous programming.

Why Brimma Tribe?

Mortgage Technology Leadership: Join a team with over two decades of experience in building and implementing enterprise-grade Mortgage Technology platforms, used by leading mortgage lenders in the US.

Tribal Culture: Become a part of a tribe that cherishes diversity, encourages innovation, and thrives on collaboration, where every voice matters. Inspired by Tribal Leadership and the mantra 'Be Nice…Play Nice,' our culture fosters an inclusive environment.

Innovation at the Core: Our innovations arise from a profound understanding of mortgages and cutting-edge technology, setting the pace for industry trends.

Optimizing Processes: We're dedicated to reengineering Mortgage Lending, utilizing the right technology to reduce origination costs for lenders.

Impactful Solutions: Collaborate with high-performing teams, delivering solutions that leave a lasting impression and create "raving fans."

Elevate your career with Brimma - where technology, culture, and innovation converge!

Job description:

Core PHP (Knowledge of functions, Methods, PHP OOPS Concept, Ajax, MySQL, Jquery), Javascript, Basic knowledge of HTML, CSS, MVC Structure 

Knowledge about socket

Looking for candidate with minimum 2+ Years of experience in Codeignitor, Laravel

Full stack developer who is capable of managing the entire development life cycle

• Experience in corporate training with minimum 3.5 years of experience in Technical training
• Exposure into Core Java & Advanced Java
• Candidate should have good Presentation, verbal & written communication Skills.
• Good to have knowledge on FET

• Engineering Graduates or Postgraduates with 2-5 years of experience in mobile development, who have designed and developed advanced applications for the Android platform in B2C domain. Experience of development of app for retail domain is an added advantage.  
• Must have working skills:  
  • Kotlin, RXJava, Dependency injection (Koin/Dagger) 
  • Unit Test 
  • Worked on multi-threaded applications 
  • MVP and MVVM 
• In depth understanding of Android recommended design principles, interface guidelines and coding best practices.  
• Experience with performance and memory tuning of complex apps.