Marcus Tan

I'm a Senior Software Engineer with 6+ years of experience building scalable backend systems, modern web applications, and AI-powered platforms that deliver real business impact.

🧠 AI/ML Expertise: I integrate advanced AI/ML solutions including LLMs (OpenAI, Anthropic), NLP, object detection, and predictive analytics — driving intelligent automation and user engagement.

🔧 Backend Engineering: My core stack includes Python (FastAPI, Django, Flask) and Node.js, building RESTful and GraphQL APIs, microservices, and secure, high-performance backends.

🧩 Automation & Integrations: I streamline workflows with Zapier, Make.com, and n8n, connecting AI systems, APIs, and databases to eliminate manual tasks and boost efficiency.

📈 SaaS & Data Platforms: From MVPs to enterprise systems, I deliver backend solutions with real-time processing, secure authentication, and scalable architecture — deployment-ready with Docker, AWS, and CI/CD pipelines.

🎨Frontend Designing: I also work with modern frontend frameworks like React, Vue.js, and Next.js when full-stack support is needed.

🛠️ Skills & Technologies

👉 **Programming Languages:

Python, JavaScript, TypeScript, Go, PHP, SQL, C#

**👉 Backend Frameworks:

FastAPI, Django, Flask, Node.js, Laravel, .NET Core, Express

**👉 Frontend frameworks:

React, Vue.js, Next.js, and Angular.

👉AI/ML & NLP Tools:**

OpenAI API, Hugging Face Transformers, Scikit-learn, TensorFlow, PyTorch, spaCy, NLTK, Pandas, NumPy

**👉 Automation & Integration:

Zapier, Make.com, n8n, REST API integration, Webhooks, Event Triggers

**👉 Database Systems:

PostgreSQL, MySQL, MongoDB, Redis

**👉: DevOps & Cloud:

Docker, AWS (EC2, Lambda, S3, DynamoDB), GitHub Actions, GitLab CI, Nginx, GCP

**👉 Other Tools:

Git, Postman, JIRA, Figma, Trello, VS Code, Swagger

✅ Why Clients Work With Me:

🎯Focused on backend excellence and ML-driven impact

🔁End-to-end project support — from idea to deployment

🔒High attention to detail, security, and scalability

🗣️Clear communication and a long-term partnership mindset

🕒Strong track record of delivering production-ready solutions on time

📩 Let’s build something powerful together — I usually reply within 5 hours.

Services:

🔹 AI/ML Expertise

I integrate cutting-edge AI and machine learning solutions, including large language models (LLMs) like OpenAI and Anthropic, Natural Language Processing (NLP), object detection, and predictive analytics to drive automation, insights, and user engagement.

Services include:

LLM Integration (OpenAI, Anthropic)

Natural Language Processing (NLP) Systems

Predictive Analytics

Object Detection Systems

🔧 Backend Engineering

My core stack includes Python (FastAPI, Django, Flask) and Node.js, where I build secure, scalable backends using RESTful and GraphQL APIs, microservices, and high-performance systems.

I focus on creating secure, scalable, and maintainable backend systems that can handle heavy traffic and complex operations.

Services include:

Backend Development (FastAPI, Django, Flask, Node.js)

API Development (RESTful, GraphQL)

Microservices Architecture

Database Design & Optimization

🧩 Automation & Integrations

Streamlining workflows with tools like Zapier, Make.com, and n8n, I connect AI systems, APIs, and databases to automate manual tasks and enhance operational efficiency.

I eliminate repetitive tasks through automation, improving workflow efficiency and reducing human error.

Services include:

Workflow Automation

API & Database Integrations

Custom Automation Solutions

📈 SaaS & Data Platforms

From MVPs to enterprise systems, I deliver backend solutions for real-time data processing, secure authentication, and scalable architecture.

 I build scalable and reliable SaaS solutions, offering real-time data processing and secure cloud architecture to ensure a smooth user experience.

Services include:

SaaS Development

Real-time Data Processing

Secure Authentication Systems

Cloud Solutions (AWS, Docker, CI/CD)

🎨 Frontend Designing

Creating modern, engaging, and responsive front-end designs using the latest frameworks like React, Vue.js, and Next.js, I ensure seamless user experiences across devices.

I craft intuitive interfaces that provide an exceptional user experience, whether it's for a small business or a large-scale enterprise.

Services include:

Responsive Web Design (Mobile & Desktop)

Frontend Development (React, Vue.js, Next.js)

UX/UI Design and Prototyping