L2/L3 technical support is the strongest part of my background. Most of my work has been in escalations, troubleshooting, and issue ownership — cases that were no longer straightforward and needed proper investigation.
My approach is to check logs, understand system behavior, reproduce the issue where possible, document findings clearly, and coordinate with engineering when deeper analysis or a code-level fix is needed. I stay with cases through to resolution.
I have worked across cloud and on-prem environments on issues involving APIs, authentication, SSO/LDAP/MFA, ETL and data workflows, storage integrations, and recurring production problems. I have also worked in Zendesk-driven environments where response quality, follow-up, and clear communication mattered alongside the technical fix.
My customer-facing experience includes large enterprise organizations across the US and Europe — banking, telecom, insurance, and other high-scale sectors — where the technical issue mattered, but so did clarity, pace, and ownership.
My approach on every case: understand the issue properly, gather the right evidence, keep communication clear, document what matters, and move it forward.
---
TOOLING AND PLATFORMS
- Support platforms: Zendesk · Jira · Salesforce · ServiceNow · Intercom
- Log and diagnostic tools: Kibana · Splunk · Elasticsearch · New Relic
- Identity and access: Azure AD / Entra ID · ADFS · Okta · LDAP · SAML · MFA
- Cloud platforms: AWS · Azure · GCP (across supported environments)
- Infrastructure exposure: Docker · Kubernetes · TCP/IP · VPN · Load Balancers
- Content and storage integration: SharePoint · Box · S3
SCRIPTING, AUTOMATION, AND DATA
- Python — ETL pipeline scripting, API integration, data processing, automation tooling
- SQL — PostgreSQL and MS SQL Server; database-level investigation, query-driven root cause analysis
- PowerShell — file system automation, metadata extraction, CSV/JSON export pipelines, operational scripting
- Power Query (M) — multi-source ETL, schema normalization, incremental refresh, reconciliation workflows
- Excel VBA — orchestration, validation, reporting automation, self-service operational tooling
- REST API — integration troubleshooting, structured request/response analysis, consumption scripting
- Power BI — dashboard-ready data preparation, operational reporting, visualization
- Automation — Zendesk and Jira triggers, webhooks, workflow automation, AI-assisted routing
AI AND LLM WORK
- LLM integration — built AI-assisted support automation via Zendesk and Intercom with LLM pipelines; reduced response times and improved resolution accuracy
- RAG pipelines — semantic retrieval, automated validation, LLM output consistency workflows
- Prompt engineering and AI workflow design for support-side automation
- Apache Airflow — workflow orchestration across ETL and data pipeline projects
Data Extraction
Python
NumPy
SQL
Web Scraping
AmiBroker
Technical Support
Customer Support
Zendesk API
IT Support
ArunBabu S.
Chennai, India
$15/hr
5.0
43 jobs
✍🏻 Are you in search of a highly skilled Software QA Engineer with expertise in Performance testing, Performance engineering, Automation testing, Load testing, and Security testing?
Look no further!
With over 15+ years of experience in the QA industry, I have a proven track record of delivering exceptional software quality solutions to clients. My specialization lies in Performance testing, where I ensure that applications perform optimally, handle high loads, and deliver seamless user experiences.
⭐QA Services ⭐
✅ Performance Testing
✅ Automation Testing
✅ Security/Penetration Testing
✅ Functional Testing/Regression/Acceptance Testing
✅ Usability Testing
✅ Mobile App Testing (IOS / Android)
✅ Strong knowledge of HTML, CSS and SQL, Python, and Java programming
✅ User Acceptance Testing
✅ API Testing
✅ Experience in SOAP API / REST API/ GraphQL
🛠️ Tools Expertise :
✅ ️Performance testing: JMeter, LoadRunner, Neoload, Gatling, Blaze Meter and K6
✅ ️Web Automation : Selenium WebDriver, WebDriver.IO,
✅ Defect Tracking Tool: JIRA, Bugzilla, Test Rail
✅ ️Mobile testing: Appium
✅ Monitoring Tools: Dynatrace, AppDynamics, DxApm, Introscope, and Net Diagnostics
✅ Cloud Server Monitoring: AWS Could watch, Open Shift Container, GCP
✅ Data visualization: Splunk, Kibana
✅ Load Generator : Redline13, Balzemeter, LR
✅ ️API testing: Postman, Swagger, Insomnia, Fiddler
✅ ️Cross-browser testing: Browser Stack, Sauce Labs
✅ ️Version Control: Git, Github, GitLab, Bitbucket, Perforce
✅ ️Databases: MongoDB, SQL, MYSQL, Oracle
✅ ️CI/CD: Jenkins, Azure DevOps, Bamboo
✅ ️Build Management: Ant, Maven, Gradle
✅ ️Frameworks: Cucumber, TestNG, JUnit, Mocha, Jasmine
✅ ️Programming knowledge: Java, HTML, JavaScript, Python
➰ Performance Testing Framework ➰
✅ ️JMeter + Perfmon+ Jenkins
✅ ️JMeter + Jenkins + Grafana
✅ ️JMeter + InfluxDB
✅ ️JMeter + RedLine13/BlazeMeter
⭐ Domain Knowledge ⭐
📌 E-commerce and retail
📌 Healthcare and medical devices
📌 Finance and banking
📌 Gaming and entertainment
📌 Education and e-learning
Performance Testing
Load Testing
Apache JMeter
QA Testing
Selenium
Software QA
Selenium WebDriver
API Testing
QA Engineering
Stress Testing
QA Software & Testing Tools
Software Testing
Automated Testing
User Acceptance Testing
Manual Testing
Jana J.
Chennai, India
$40/hr
5.0
12 jobs
👋 Hi, I’m Jana R — Expert Node.js Backend Developer, MongoDB, API & Authentication Specialist
🔍 Are you seeking a reliable backend developer to design, build, and optimize scalable systems?
With extensive experience, I deliver robust APIs and backend solutions tailored to your needs.
💼 What I Offer:
🟢 Node.js & MongoDB Expertise:
End-to-end API development, data modeling, performance tuning, and troubleshooting.
🔐 API Integration & Security:
OAuth, JWT, OIDC, SSO, and secure authentication for seamless, secure integrations.
🌐 Open Source & npm Packages:
Published author and active contributor — check my portfolio for real-world code samples.
🌏 Remote Collaboration:
Proven success with global teams (including YC-backed startups), always delivering on time.
🤝 Client-Focused Approach:
Clear communication, clean code, and measurable results are my priorities.
🛠️ Key Skills:
- Node.js, Express, TypeScript, JavaScript
- MongoDB (Atlas, Compose), MySQL, PostgreSQL, Redis
- REST APIs, Webhooks, Kafka, OpenAPI, Swagger
- Authentication: JWT, OAuth 2.0, OIDC, SAML, SSO, Auth0, Okta
- Docker, Git, GitHub Actions, AWS, Azure, GCP
🌟 Selected Projects:
- OAuth 2.1 Authorization Server: Built a proof-of-concept server (MEVN stack) with advanced session and token management.
- Appointment Scheduler: Real-time doctor slot booking using scalable MongoDB aggregation.
- npm Packages: group-objects-array, deduplicate-array, array-has-value, and more (see portfolio).
🎓 Certifications:
- MongoDB University: Diagnostics, Aggregation, Performance, Data Modeling, Security
- Lean Six Sigma Green Belt
🚀 Let’s build your next project together!
Send me a message to discuss how I can help you achieve your goals.
MongoDB
Node.js
JavaScript
Python
Perl
HTML5
Java
OAuth
User Authentication
Auth0
OKTA
HubSpot
Google Cloud Platform
OWASP
MERN Stack
Docker Compose
Git
Usharani A.
Chennai, India
$15/hr
5.0
1 jobs
Hi- I am Test Automation Expert with 14 years experience-COMPLEXITY fuels my FOCUS- I deliver reliable solutions across Selenium, APIs ,Python, dynamic UIs, asynchronous data, secure auth flows, and CI/CD workflows.
My professional journey spans 14 years, including an impactful tenure at Accenture as a Manager leading multiple accounts across QA, ITSM, and Data Analytics.
✨ Automation Framework Development
🔹 Spearheaded the development of robust automation frameworks using Selenium, WebDriverIO, Puppeteer, TOSCA, Cucumber (BDD), and TestNG
🔹 Integrated cross-browser testing via BrowserStack and ensured seamless CI/CD integration using Jenkins, Docker, and Maven
✨ Test Management & QA Leadership
🔹 Directed QA teams on complex healthcare and enterprise projects
🔹 Defined and executed automation test plans and strategies
🔹 Managed defect tracking and resolution through JIRA, Quality Center, Zephyr, and Xray
✨ Third-Party Integration
🔹 Built integrations between test frameworks and platforms like JIRA, Outlook, and internal tools
🔹 Enhanced traceability, automated test reporting, and streamlined workflows
✨ API & Database Testing
🔹 Performed comprehensive REST/SOAP API testing using Postman
🔹 Conducted backend validations with SQL and interacted with databases such as Redshift, MySQL, and PostgreSQL
✨ Python Data Scraping & Visualization
🔹 Developed Python-based web scraping scripts using BeautifulSoup, Selenium, and Requests to collect and process large-scale healthcare and market data
🔹 Built interactive data apps with Streamlit, enabling dynamic visualization and stakeholder access to real-time insights
✨ Penetration Testing
🔹 Proficient with industry-standard tools such as Burp Suite, Nmap, Metasploit, OWASP ZAP.
🔹 Hands-on experience identifying and validating critical web application vulnerabilities such as
SQL Injection, Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), Insecure Direct
Object References (IDOR), and Broken Authentication.
✨ Healthcare
🔹 Experienced QA Professional with a strong background in healthcare domain, specializing in
end-to-end testing of payer and provider systems, electronic health records (EHR), claims
processing, and healthcare data exchange.
🔹Proven expertise in testing healthcare applications built on FHIR, HL7 and HIPAA-
compliant systems.
🔹 Skilled in both manual and automated testing, API validation, and test data management in
complex healthcare workflows such as member enrollment, eligibility verification, prior
authorization, e-prescription, and HEDIS quality measures.
Data Scraping
Selenium WebDriver
Python
API
WebdriverIO
Automation Framework
Epic Systems Medical Software
FHIR
Data Analytics
CodeIgniter
Zephyr
Jira
Web Testing
Tesseract OCR
LangChain
Prakash T.
Chennai, India
$35/hr
4.9
13 jobs
I’m Prakash, a healthcare technology consultant with proven experience in EHR integrations, measurement-based care (MBC) platforms, and clinical workflow solutions.
I’ve worked with companies like Greenspace Health (Canada) and PatientIQ (Chicago) to design and implement patient assessments, build MBC tools, and integrate them with existing EHR systems. My work includes developing assessment builders, managing PRO data pipelines, and supporting platform deployments.
Core Skills:
-EHR & healthcare system integrations
-MBC & patient-reported outcome tools
-Python & data workflow automation
-Survey/assessment design & platform management
I offer reliable delivery, competitive rates, and a mix of technical and healthcare expertise to help product teams move faster.
Data Visualization
Tableau
Python
Data Collection
Epic Systems Medical Software
Data Management
HIPAA
Company Research
Market Research
Form Builder Software
Form Development
JSON
API
Munish K.
Chennai, India
$14/hr
5.0
2 jobs
I am an EMR Integration Specialist and EMR Software Developer with a focus on building, customizing, and integrating Electronic Medical Records (EMR) and Electronic Health Records (EHR) systems. I have experience and exposure to PHP (Laravel), Vue.js, and healthcare IT. I help healthcare professionals and companies overcome barriers in accessing or sharing patient records, optimizing workflows for their health information, and ensuring timeliness in their data access
EMR & Healthcare IT Expertise :
✅ EMR/EHR Integration - integrating with Epic, Cerner, DrChrono, NexTech, and other EMR systems.
✅ Custom EMR development - Building custom EMR that is feature-rich and HIPAA compliant.
✅ FHIR & HL7 API Integration - we ensure interoperability between healthcare systems.
✅ Medical Billing and patient management - Creating levels for module insurance claims, billing, and scheduling.
✅ Healthcare Data security and compliance - He ensures secure authentication and encryptions. She is familiar with Health IT rules and compliance to ensure adherence.
✅ Performance optimization - MySQL profiling, query optimization, and scalable architecture
Technical Skills & Tools :
🔹 Back End Development:
Laravel, CakePHP, Core-PHP, REST API Development
Develop efficient, testable, and reusable PHP modulesIntegrate user facing elements developed by front-end teams
Integrate into cloud based or private based I.T, dedicated server setup and cloud configuration
🔹 Front End Development:
Vue.js, Livewire (Laravel), JavaScript, jQuery, HTML5, CSS3, Bootstrap
Create and maintain modern responsive UI and UX.
🔹 Database Performance Optimization:
MySQL, MariaDB (Schema Design, Query Optimization, Profiling)
Optimized the performance of databases intended to host high-traffic healthcare applications
🔹 API & 3rd Party Integration:
FHIR, HL7, Google APIs, Facebook Graph API, SMS/OTP Authentication
Linked EMR systems with third-party services to extend functionality
🔹 Software Testing & Automation:
PHP Unit Testing, Cypress, API Testing (Postman)
Have experience in automation testing & performance benchmarking in this context
🔹 Payment Gateways:
Stripe, PayPal, Mollie, Authorize.net
Integrating secure transactions with healthcare applications
🔹 Development Tools & Collaboration:
Git, Composer, NPM, Yarn, Vite, Docker
Working with Figma, Adobe XD, Miro, Photopea, Illustrator, InDesign-UI/UX collaboration
With a focus on EMR/EHR software development, API-driven solutions in healthcare, and full-stack web development I plan, develop, and implement high-performing, scalable, and secure medical applications for clinics, hospitals, and healthcare providers.
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