QA and Functional testing
I am here to provide the best experiences to customers so that they can revisit me and grow their businesses with my help and assistance.
I can provide a vast range of services, from Virtual Assistance to developing big projects.
I can serve you better than anyone else for all your IT needs.
Recent Projects:
Meraki - MR, MS, and MX series
Business Analyst and Project Management
Cisco Wireless Rollouts with 100 Access Points.
RIP to OSPF migration for 3000 user base.
ASA 5510 firewall configurations
Juniper SRX implementation.
LAN/WAN Setup for Client for 5 locations (700 Users)
Project Management for full-lifecycle for IT infrastructure enhancement.
IT Security /Cyber Security
- HIPAA compliances
- SOC2/Type1/2
- Hitrust
- PCI
- IT Security Audits
- NOC/SOC operations and services
Key Certifications/Skills:
PgMP,PMP, ITIL v3
Scrum Master, CSPO
CCNA, CCNP, CCIE,
CCSA,CCSE, Juniper, Nortel
MCSE
AWS, Azure, GCP
Digital Project Management
Project Management
QA Management
Cisco Certified Internetwork Expert
Project Management Office
Business Analysis
RTE
Cisco Certified Network Professional
QA Testing
QA Software & Testing Tools
Communications
Cisco Meraki
Juniper
HIPAA
Compliance
David B.
Charlotte, North Carolina
$90/hr
4.6
10 jobs
PROFESSIONAL SUMMARY
Heavily Experienced Network Architect/Engineer, with over 20 years of experience designing and managing large-scale WAN/LAN environments for multiple industries including Financial (Banking, Trading, SaaS, Private Equity), Manufacturing (Honeywell, Motorola, Church and Dwight), Airline (United, Boeing), and Healthcare. Heavy experience in environments with 50,000+ users in Multi-vendor WAN/LAN and Microsoft/Linux/VMWare and AWS, Azure, and GCP cloud environments. Self-motivated individual who is goal oriented with the ability to work well with others. Strategic thinker skilled in analyzing problems and making sound decisions. Adept at setting and exceeding group/individual objectives with strong organization and deadline focus. Multiple current Network and Security Certifications.
Network Engineering
Computing & Networking
Network Security
Network Architecture
Cloud Computing
Network Administration
Palo Alto Firewalls
Cisco
Cisco ISE
Cisco ASA
Cisco Firepower Threat Defense
Fortinet
Cisco Certified Internetwork Expert
Cisco Meraki
Cisco Certified Network Associate
Devin K.
Charlotte, North Carolina
$50/hr
4.9
3 jobs
Senior Full-Stack Engineer | React, Java/Spring Boot, Go, APIs, MongoDB, AI Workflows
I help businesses turn software ideas, broken systems, and stalled development work into production-ready applications.
I’m a senior software engineer with experience building and maintaining enterprise software for Fortune 100/Fortune 30 environments, including platforms involving React, TypeScript, Java/Spring Boot, Go, MongoDB, REST APIs, cloud services, integrations, automation, and AI-augmented workflows.
Clients usually come to me when they need someone who can step into complexity quickly, understand the business problem, and deliver clean, maintainable software without needing constant hand-holding.
What I can help with
* Full-stack web application development
* Backend API development with Java/Spring Boot, Go, Node.js, and REST
* React, TypeScript, Angular, and frontend component development
* MongoDB and SQL database design, queries, and data workflows
* SaaS MVP development and feature implementation
* API integrations, third-party services, and internal tools
* AI-assisted software workflows, automation, and productivity tooling
* Debugging, refactoring, performance improvement, and technical cleanup
* QA regression planning, test strategy, and release readiness
* Technical documentation, architecture planning, and backlog creation
Why work with me
I bring more than coding ability. I understand software delivery from both the engineering and business side. I can work from a rough idea, a Figma design, a backlog, an existing codebase, or a messy production issue and turn it into a clear execution plan.
I’ve worked across enterprise systems where reliability, maintainability, security, and clear communication matter. I’m comfortable collaborating with product managers, designers, QA teams, business stakeholders, and other engineers.
Common projects I’m a good fit for
* “We need an MVP built.”
* “Our current developer left, and we need someone to take over.”
* “Our React app needs new features or cleanup.”
* “We need backend APIs built or fixed.”
* “We need help integrating AI into our workflow.”
* “We need a technical person to turn requirements into tickets.”
* “We need production-level software, not just a prototype.”
## Tech stack
React, TypeScript, JavaScript, Angular, Java, Spring Boot, Go, Node.js, Express, MongoDB, SQL, REST APIs, Git, Docker, CI/CD, cloud services, API integrations, testing, automation, and AI-assisted development workflows.
If you need a reliable engineer who can understand the problem, communicate clearly, and move the project forward, send me a message, and I’ll help you map out the next step.
JavaScript
API Integration
SQL
Golang
RESTful API
Front-End Development
Angular
Java
Machine Learning
Full-Stack Development
Back-End Development
React
TypeScript
Spring Boot
Node.js
MongoDB
SaaS
Software Architecture
Web Application
Automation
Lianna D.
Charlotte, North Carolina
$30/hr
5.0
3 jobs
Detail-oriented professional with experience in administrative customer service, data analysis, and information management. Skilled in refining writing for clarity, accuracy, and flow, with a strong command of grammar, structure, and tone. I bring an analytical mindset and a sharp eye for detail, enabling me to simplify complex information while maintaining the writer’s voice. Committed to using my skills and knowledge daily to support client goals, enhance readability, and consistently deliver polished, high-quality work under deadlines.
Proofreading
English
Customer Service
Data Entry
Academic Editing
Bilingual Education
Quality Audit
Documentation
Compliance Training
Problem Resolution
Ling Z.
Charlotte, North Carolina
$75/hr
4.5
35 jobs
I build marketing attribution and analytics systems for companies that need to know exactly where their marketing is working.
Most recently: deployed Google Meridian (Bayesian MMM) across paid search, paid social, and direct mail for a major financial services brand. Built lead scoring models on millions of records using XGBoost and neural nets.
On the e-commerce side: GA4 + GTM + Google Ads tracking, Shopify analytics, conversion tracking fixes, and Looker Studio dashboards for 30+ clients.
MBA + MS Mathematics. 100% Job Success on Upwork.
Based in Charlotte NC — US timezone.
You work directly with me, not a junior analyst.
Google Ads
Google Marketing Platform
Google Display Network
Google Tag Manager
Google Analytics
Marketing Automation
Analytics
Freelance Marketing
Data Analysis
Digital Strategy
BigQuery
Pay Per Click Advertising
Paid Social
SEO Audit
Looker
Onkar P.
Charlotte, North Carolina
$30/hr
4.5
55 jobs
I'm a certified Python professional and certified DeepLearning(.)ai Tensorflow Developer. I've completed my Masters in Computer Science. .
1. My skills include:
- Data Science and Data Analysis
- Machine Learning (KNN, Random Forest, XG Boost, Linear and Logistic Regression, K-means Clustering)
- Deep Learning(CNN, ANN, RNN, LSTM)
- Model Tuning and Optimisation (GridSearchCV)
- Natural Language Processing NLP (Sentiment Analysis, Chatbot Development, Text classification)
- Transfer Learning (Xception, Inception, ResNet, VGG16, InceptionResnt, MobileNet)
- Object Detection (R-CNN, SSD, YOLO, Faster R-CNN)
- Image Segmentation (Mask R-CNN)
- Interactive Visualizations and Animations (Matplotlib, Seaborn)
- Database Management(MySQL, Sqlite)
- Audio Processing(pydub, pyaudio)
- Image processing(PIL,Opencv, FFMPEG)
- Graphical User Interface GUI (Tkinter, PyQT)
- Optical Character RecognitionOCR (Tesseract)
- Desktop Application Development and Automation (Pyautogui, PyInstaller)
2. Libraries:
- Pandas, Numpy, Scipy, Tkinter, Matplotlib, PyautoGUI, OpenCV, PIL, Sklearn, SQL, Regex, Tesseract
3. Deep Learning Frameworks:
- Keras, Tensorflow, PyTorch, Scikit-learn
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