8 years building and shipping backend systems and full-stack products, mostly solo or in small remote teams. I like owning things end to end, from infra to the API to the parts of the frontend that touch it.
Most recent project: myfinance.cc, a personal finance SaaS that parses M-Pesa and bank PDF statements. Transaction categorization runs on a Random Forest classifier (TF-IDF + temporal features, ~95% accuracy on live data); spend forecasting uses a per-user RF regressor with 31 engineered features; anomaly detection via Z-scores.
Also built watchdock.cc, an observability platform (error tracking with SHA-256 dedup, uptime/SSL monitoring, container health, an AI-generated daily ops summary posted to Slack). I also maintain a few async-first PyPI packages (kenyan-counties, daraja-sdk).
More projects and code on my site. Happy to talk about any of it.
I am a Product Engineer with 8+ years of experience architecting and scaling high-performance backends and web apps. I specialize in the Python, TypeScript and Go ecosystems and have a track record of high ownership of features and projects, improving API performance and optimising infrastructure for scale in remote-first organizations.
Proof of Work:
Watchdock.cc - Founder & solo engineer of a live monitoring and observability platform. Built the unified dashboard, log tracking, error tracing and alerting infrastructure from scratch. (https://watchdock.cc)
Open Source: Active maintainer of strictly typed, async-first PyPI packages like kenyan-counties, daraja-sdk, and framework error-tracking libraries.
I am a Product Engineer with 8+ years of experience architecting and scaling high-performance backends and web apps. I specialize in the Python, TypeScript and Go ecosystems and have a track record of high ownership of features and projects, improving API performance and optimising infrastructure for scale in remote-first organizations.
Proof of Work:
Watchdock.cc - Founder & solo engineer of a live monitoring and observability platform. Built the unified dashboard, log tracking, error tracing and alerting infrastructure from scratch. (https://watchdock.cc)
Open Source: Active maintainer of strictly typed, async-first PyPI packages like kenyan-counties, daraja-sdk, and framework error-tracking libraries.
I am a Product Engineer with 8+ years of experience architecting and scaling high-performance backends and web apps. I specialize in the Python, TypeScript and Go ecosystems and have a track record of high ownership of features and projects, improving API performance and optimising infrastructure for scale in remote-first organizations.
Proof of Work:
Watchdock.cc - Founder & solo engineer of a live monitoring and observability platform. Built the unified dashboard, log tracking, error tracing and alerting infrastructure from scratch. (https://watchdock.cc)
Open Source: Active maintainer of strictly typed, async-first PyPI packages like kenyan-counties, daraja-sdk, and framework error-tracking libraries.
Hi, I'm a software engineer focused on backend systems and developer infrastructure.
I'm currently building Watchdock (https://watchdock.cc
), a lightweight monitoring and error tracking platform designed to reduce noise and improve signal clarity for SaaS applications.
What I’ve done with Watchdock:
- Designed and implemented an error ingestion API
- Built event grouping & processing logic
- Developed a Python SDK for error capture
- Designed alerting workflows
- Deployed and managed production infrastructure
I enjoy working on backend systems, reliability, observability and tools that improve developer experience.
I’m looking for roles in backend engineering, platform engineering or infrastructure-focused teams where I can contribute to production systems.
About:
I’m a product-focused full stack engineer who’s built and shipped multiple revenue-generating SaaS and fintech products end-to-end, often as the first or solo engineer.
Zanari is multi-tenant property SaaS (Postgres schema isolation, M-Pesa reconciliation)
Fiscal AI is an ML-driven transaction classification and fraud detection
Codetail is for AI-generated coding challenges with automated evaluation.
I built Fiscal AI, a financial expense analysis, transaction classification, expenditure forecast/prediction and ai assistant tool powered by machine learning models and LLMs. You can see a short demo here https://supercut.ai/share/nickson-langat/lKLxTSQsdv79scuWAy2...
I also built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations. You can explore the project https://codetail.nicklangat.com
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes. You can explore the project https://invoisce.nicklangat.com
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Fiscal AI, a financial expense analysis, transaction classification, expenditure forecast/prediction and ai assistant tool powered by machine learning models and LLMs. You can see a short demo here
https://supercut.ai/share/nickson-langat/lKLxTSQsdv79scuWAy2...
I also built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations. You can explore the project https://codetail.nicklangat.com
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes. You can explore the project https://invoisce.nicklangat.com
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Fiscal AI, a financial expense analysis, transaction classification, expenditure forecast/prediction and ai assistant tool powered by machine learning models and LLMs. You can see a short demo here https://supercut.ai/share/nickson-langat/lKLxTSQsdv79scuWAy2...
I also built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations. You can explore the project https://codetail.nicklangat.com
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes. You can explore the project https://invoisce.nicklangat.com
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations.
You can explore the project https://codetail.co
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes.
You can explore the project https://invoisce.co
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations.
You can explore the project https://codetail.co
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes.
You can explore the project https://invoisce.co
I also built Fiscal AI, a financial expense analysis, transaction classification, expenditure forecast/prediction and ai assistant tool powered by machine learning models and LLMs. You can see a short demo here https://supercut.video/share/nickson-langat/lKLxTSQsdv79scuW...
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations.
You can explore the project https://codetail.co
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes.
You can explore the project https://invoisce.co
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
I built Codetail, a platform that helps developers improve their coding skills by providing personalized solutions and practice problems. It showcases my ability to design and implement complex features such as user authentication, problem-solving interfaces, and AI-driven recommendations.
You can explore the project https://codetail.co
I also built Invoisce, a modern invoicing platform that simplifies billing for businesses and freelancers. The platform offers features like automated invoice scheduling, bulk invoice generation, and email integration for direct client communication. Users can choose from customizable invoice templates, attach supporting documents, and generate secure shareable links for easy client access. Invoisce is designed to streamline the invoicing process, reducing manual work and improving efficiency for businesses of all sizes.
You can explore the project https://invoisce.co
I thrive on building impactful, user-centric applications and am always eager to take on new challenges. If you're looking for an engineer who can deliver high-quality solutions, let’s connect. I'd love to discuss how I can contribute to your team.
Remote: Yes
Willing to relocate: No
Seeking: Full-time or long-term contract
Technologies: Python (Django, FastAPI), Go, PostgreSQL, MongoDB, Redis, Docker, Celery, Next.js, AWS
Résumé/CV: https://nicklangat.cc/
GitHub: https://www.github.com/nicksonlangat/
LinkedIn: https://www.linkedin.com/in/nick-langat-26081119a/
Email: nicksonlangat95 at gmail dot com
8 years building and shipping backend systems and full-stack products, mostly solo or in small remote teams. I like owning things end to end, from infra to the API to the parts of the frontend that touch it.
Most recent project: myfinance.cc, a personal finance SaaS that parses M-Pesa and bank PDF statements. Transaction categorization runs on a Random Forest classifier (TF-IDF + temporal features, ~95% accuracy on live data); spend forecasting uses a per-user RF regressor with 31 engineered features; anomaly detection via Z-scores.
Also built watchdock.cc, an observability platform (error tracking with SHA-256 dedup, uptime/SSL monitoring, container health, an AI-generated daily ops summary posted to Slack). I also maintain a few async-first PyPI packages (kenyan-counties, daraja-sdk).
More projects and code on my site. Happy to talk about any of it.