Nezri QA & Systems
Testing complex systems E2E — ERP, CRM ,E-commerce & AI platforms
Israel
Freelancer
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QA Training
Quality Assurance, Software Testing & QA
CRM & ERP
AI, Artificial Intelligence
DB - MSSQL, SQL Server
ABOUT
I help companies ensure their systems actually work — not just in theory, but in real-world conditions.
With experience in QA, operations, and large-scale retail environments, I specialize in testing complex systems such as ERP platforms, e-commerce solutions, and AI-driven architectures.
My approach goes beyond traditional QA:
I focus on validating full business workflows, backend logic, APIs, and data integrity — identifying critical risks before they reach production.
I bring a unique combination of:
✔ Deep QA expertise
✔ Strong system and backend understanding
✔ Real operational experience managing large-scale business processes
This allows me to test systems from both a technical and business perspective — something most QA engineers lack.
Services include:
• End-to-end system testing
• ERP / CRM validation
• API & backend testing
• AI / agent-based systems testing
• QA strategy & consulting
If your system is complex — I help make sure it works reliably, scales properly, and doesn’t fail when it matters most.
With experience in QA, operations, and large-scale retail environments, I specialize in testing complex systems such as ERP platforms, e-commerce solutions, and AI-driven architectures.
My approach goes beyond traditional QA:
I focus on validating full business workflows, backend logic, APIs, and data integrity — identifying critical risks before they reach production.
I bring a unique combination of:
✔ Deep QA expertise
✔ Strong system and backend understanding
✔ Real operational experience managing large-scale business processes
This allows me to test systems from both a technical and business perspective — something most QA engineers lack.
Services include:
• End-to-end system testing
• ERP / CRM validation
• API & backend testing
• AI / agent-based systems testing
• QA strategy & consulting
If your system is complex — I help make sure it works reliably, scales properly, and doesn’t fail when it matters most.
LANGUAGES
English
Native or bilingual proficiency
Hebrew
Native or bilingual proficiency
SKILL DETAILS
Training
300 ₪
/ hr
QA Training
Providing guidance, mentoring, and consulting in QA and system testing for teams and organizations.
I help companies:
✔ Build effective QA processes and testing strategies
✔ Improve testing coverage and reduce production bugs
✔ Train teams to think beyond basic testing and understand systems deeply
✔ Implement structured approaches for testing complex systems
With a strong background in both QA and real operational environments, I bring practical, business-focused insights — not just theory.
Ideal for teams that want to level up their QA maturity and prevent costly mistakes.
I help companies:
✔ Build effective QA processes and testing strategies
✔ Improve testing coverage and reduce production bugs
✔ Train teams to think beyond basic testing and understand systems deeply
✔ Implement structured approaches for testing complex systems
With a strong background in both QA and real operational environments, I bring practical, business-focused insights — not just theory.
Ideal for teams that want to level up their QA maturity and prevent costly mistakes.
Technology
250 ₪
/ hr
Quality Assurance, Software Testing & QA
QA & Systems Consultant with experience in testing complex systems, including ERP, SaaS platforms, and backend-driven applications.
My approach goes beyond traditional QA:
✔ End-to-end system testing (not just UI)
✔ Deep validation of backend logic, APIs, and data flows
✔ Testing complex business scenarios and real-world use cases
✔ Identifying critical production risks before they happen
Strong experience with:
✔ API & GraphQL testing
✔ Backend validation and data integrity
✔ Event-driven systems and async flows (queues, jobs)
✔ Complex integrations across multiple services
I don’t just test features — I ensure the system actually works under real conditions.
My approach goes beyond traditional QA:
✔ End-to-end system testing (not just UI)
✔ Deep validation of backend logic, APIs, and data flows
✔ Testing complex business scenarios and real-world use cases
✔ Identifying critical production risks before they happen
Strong experience with:
✔ API & GraphQL testing
✔ Backend validation and data integrity
✔ Event-driven systems and async flows (queues, jobs)
✔ Complex integrations across multiple services
I don’t just test features — I ensure the system actually works under real conditions.
CRM & ERP
Extensive experience testing complex ERP and CRM systems, with deep understanding of real-world business processes.
I specialize in end-to-end validation of critical workflows such as:
✔ Purchase → Goods Receipt → Inventory → Sales
✔ Inventory management, FEFO, expiry handling
✔ Supplier, product, and order lifecycle flows
✔ Financial and operational data integrity
Coming from a background of managing large-scale retail and e-commerce operations, I bring a unique ability to test systems not just technically — but from a real business perspective.
I focus on preventing critical system failures that directly impact operations, revenue, and customer experience.
I specialize in end-to-end validation of critical workflows such as:
✔ Purchase → Goods Receipt → Inventory → Sales
✔ Inventory management, FEFO, expiry handling
✔ Supplier, product, and order lifecycle flows
✔ Financial and operational data integrity
Coming from a background of managing large-scale retail and e-commerce operations, I bring a unique ability to test systems not just technically — but from a real business perspective.
I focus on preventing critical system failures that directly impact operations, revenue, and customer experience.
AI, Artificial Intelligence
I specialize in testing and validating AI-driven systems, including agent-based architectures, decision-making workflows, and automated processes.
My expertise includes:
✔ Validating AI agent behavior and execution flows
✔ Testing approval systems, orchestration logic, and fallback scenarios
✔ Identifying edge cases, failure states, and incorrect decision paths
✔ Ensuring reliability of AI outputs in real business environments
With hands-on experience building and working with AI-enabled ERP systems, I understand not just how AI should work — but how it impacts real operations.
If you're building AI features, I help make sure they behave correctly, safely, and consistently in production.
My expertise includes:
✔ Validating AI agent behavior and execution flows
✔ Testing approval systems, orchestration logic, and fallback scenarios
✔ Identifying edge cases, failure states, and incorrect decision paths
✔ Ensuring reliability of AI outputs in real business environments
With hands-on experience building and working with AI-enabled ERP systems, I understand not just how AI should work — but how it impacts real operations.
If you're building AI features, I help make sure they behave correctly, safely, and consistently in production.
Software & Programming
250 ₪
/ hr
DB - MSSQL, SQL Server
Strong experience working with SQL in the context of testing complex systems, including ERP, e-commerce, and backend-driven applications.
I use SQL as a core tool for validating data integrity, investigating issues, and supporting end-to-end testing processes.
My experience includes:
✔ Writing queries to validate business data across systems (orders, inventory, users, transactions)
✔ Verifying data consistency between frontend, backend, and database layers
✔ Analyzing complex datasets to identify anomalies, inconsistencies, and edge cases
✔ Supporting API and backend testing by validating database-level results
✔ Working with relational databases such as MSSQL and PostgreSQL
With a strong understanding of system architecture and data flows, I use SQL not just for queries — but as a tool to deeply understand how systems behave and where issues originate.
This allows me to identify problems faster, validate complex scenarios, and ensure data reliability in production environments.
I use SQL as a core tool for validating data integrity, investigating issues, and supporting end-to-end testing processes.
My experience includes:
✔ Writing queries to validate business data across systems (orders, inventory, users, transactions)
✔ Verifying data consistency between frontend, backend, and database layers
✔ Analyzing complex datasets to identify anomalies, inconsistencies, and edge cases
✔ Supporting API and backend testing by validating database-level results
✔ Working with relational databases such as MSSQL and PostgreSQL
With a strong understanding of system architecture and data flows, I use SQL not just for queries — but as a tool to deeply understand how systems behave and where issues originate.
This allows me to identify problems faster, validate complex scenarios, and ensure data reliability in production environments.
COURSES & CERTIFICATIONS
QA & Automation Testing
John Bryce (ISTQB Certified Program)- Comprehensive training in software testing and quality assurance, covering both manual and technical testing methodologies.
- The program included:
- ✔ Test planning, test case design, and execution
- ✔ System and end-to-end testing methodologies
- ✔ API and backend testing fundamentals
- ✔ Understanding of software development lifecycle (SDLC)
- ✔ Bug tracking, reporting, and quality processes
- In addition to formal training, most of my expertise was developed through extensive hands-on experience working with complex systems, including ERP platforms, e-commerce environments, and backend-driven applications.
- This combination of structured training and real-world system experience allows me to approach QA from both a technical and business-critical perspective.
FullStack
john bryce- Fullstack development training with a strong focus on understanding how modern applications are built — both frontend and backend.
- The program included:
- ✔ Frontend development fundamentals (React, UI architecture)
- ✔ Backend development and API design
- ✔ Database structure and data modeling
- ✔ Working with REST / GraphQL APIs
- ✔ Application architecture and system design principles
- This technical background significantly enhances my QA capabilities by allowing me to:
- ✔ Understand how systems work internally — not just from the UI
- ✔ Identify issues at the source (backend, logic, or data layer)
- ✔ Test APIs, integrations, and complex flows more effectively
- ✔ Communicate efficiently with developers and engineering teams
- This combination of QA expertise and development knowledge enables me to approach testing from a deeper, system-level perspective.
5 SKILLS
300 ₪
/ hr
Training
250 ₪
/ hr
Technology
250 ₪
/ hr