Open for full-time & freelance work

Daniel Teddy

@whereIsOneee

Full-Stack Software Engineer & Technical Founder

Düsseldorf, GermanyLocal time

Building @trylooial · Stackwise

  • Building Looial, a WhatsApp loyalty program for businesses
  • Software engineer and founder at Stackwise Tech
  • Sharing the build journey, lessons, and wins in public

Years experience

Projects shipped

Clients worldwide

TypeScript, Node.js, Python, AWS CDK, Postgres, and the AI tooling your product actually needs.
Or keep it boring: proven tools, production defaults, no fashion projects.

  • TypeScript
  • JavaScript
  • Python
  • C
  • SQL
  • HTML
  • CSS
  • React.js
  • Next.js
  • Node.js
  • Express.js
  • Fastify
  • REST APIs
  • PostgreSQL
  • MySQL
  • MongoDB
  • AWS
  • AWS CDK
  • AWS Lambda
  • Docker
  • OpenAI
  • Zod
  • Git
  • GitHub
  • Slack
  • WhatsApp
  • VS Code
  • Cursor
  • Vercel

The same engineer carries the stack across product, platform, AI, and cloud - not a specialist dropped in for one sprint.

What I do

5+ years building event-driven B2B SaaS, AI agent systems, and production cloud infrastructure. See my resume and portfolio.

  • TypeScript & Node.js

    Advanced asynchronous backend engineering, microservice orchestration, and scalable RESTful APIs with Express, Fastify, Next.js, and Zod.

  • Python & Data Engineering

    Backend services, text processing, automation layers, and lightweight data manipulation within Pythonic runtimes.

  • AI Systems & Vector Pipelines

    Semantic ingestion layers, text-chunking architectures, embedding lookups, and prompt engineering hooks for LLM deployment.

  • AWS Cloud & CDK

    Serverless applications and distributed infrastructure using AWS CDK, Lambda, AWS Batch, and EventBridge schedulers.

  • SQL, NoSQL & Schema Design

    PostgreSQL/MySQL modeling, query optimization, multi-tenant state handling, schema migrations, and MongoDB pipelines.

  • Integrations & Webhooks

    Highly available webhooks and async streaming for Google Workspace, Notion, Slack, and WhatsApp business profiles.

  • Systems & DevOps

    Architectural fundamentals in C, cross-platform container management with Docker, and automated shell scripting.

Let's work on your next project

Available for full-time and freelance work. Get in touch and we'll ship with clarity and precision.

Contact

Projects

Selected product and platform work across SaaS, AI systems, and integrations.

Show all
CMND.AI Platform Core
TypeScriptAWSAI Orchestration
CMND.AI Platform Core

An enterprise-grade orchestration backend for deploying autonomous AI agents, multi-modal transcription services, and dynamic knowledge base vectorizations.

Springline
Node.jsB2B SaaSMulti-tenant
Springline

Comprehensive B2B SaaS analytics dashboard platform focused on subscription data and customer revenue health tracking.

Looial
WhatsAppWebhooksLoyalty Platform
Looial

A WhatsApp-native digital loyalty platform enabling instant business customer retention loops.

Recommendations

LinkedIn recommendations from managers, teammates, and colleagues I've built with.

I’ve had the privilege of working with Teddy Daniel for almost three years, and I can honestly say that having him as a colleague has been one of the highlights of my professional journey. He is incredibly intelligent, dedicated, and passionate about what he does. Whenever there’s a challenge, Teddy takes the time to understand the problem, thinks things through, and gives his best to find a solution. Beyond his abilities, he is humble, respectful, dependable, and genuinely good-hearted. I have no hesitation whatsoever in recommending Teddy — any team would be lucky to have someone as talented, dedicated, and genuinely great as him.

Umar Bunu
Umar BunuSoftware Developer @ futurecast.studio

I had the pleasure of working with Daniel on several software development and e-commerce projects. Throughout our collaboration, he consistently demonstrated strong technical skills, professionalism, and a solution-oriented mindset. Daniel approaches every challenge with dedication and takes ownership of his work. He is always willing to support his teammates, communicate openly, and contribute to finding the best possible solutions. Beyond his technical expertise, Daniel is a reliable, respectful, and easy-to-work-with colleague who creates a positive atmosphere within the team.

I first met Daniel during a hackathon hosted by cmnd.ai, where he was a mentor and I was one of the competitors. Even from our first interactions, it was clear that Daniel is an exceptional engineer with deep technical knowledge and a genuine passion for helping others grow. I later joined cmnd.ai and now work alongside Daniel as a full-time software engineer. He consistently shows himself to be an excellent developer, a supportive teammate, and a great mentor. I’m grateful to have learned from and worked with Daniel, and I would highly recommend him to anyone looking for a talented senior engineer and an outstanding teammate.

Daniel is a very skilled developer and a great team player. I have worked with him on a couple of projects and he possesses solid leadership skills. I joined his team as a junior and learnt a lot from him — from problem solving to his thought process as we built complex systems and projects.

I had the pleasure of managing and mentoring Teddy during my time as Team Lead at futurecast.studio, where he reported directly to me on several critical projects. From day one, Teddy stood out for his sharp problem-solving skills and an incredible eagerness to learn. What makes Teddy exceptional is his autonomy — he doesn’t just write code; he takes the time to understand the underlying architecture and asks the right questions. Whenever I handed him a complex task or a tight deadline, I knew I could rely on him to deliver clean, efficient work. He has a brilliant trajectory ahead of him and would be a massive asset to any engineering team.