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I am a **Multi-talented** professional adept in **Full Stack Web Development**, **Web Security Research**, and **Robotics Engineering**. As a dedicated Web Security Researcher and ethical hacker, I uncover vulnerabilities and mitigate security risks, bridging the gap between development and cybersecurity. Additionally, as a Robotics Engineer, I design and build sophisticated robotic systems, applying my deep understanding of mechanics, electronics, and programming. Passionate about crafting clean, scalable code and innovative robotics solutions, I contribute to projects that prioritize both robust development, cybersecurity practices, and cutting-edge robotic technology.
**GitHub**: [https://github.com/andrewwalsh](https://github.com/andrewwalsh) **LinkedIn**: [https://www.linkedin.com/in/andrewwalsh-tech/](https://www.linkedin.com/in/andrewwalsh-tech/) **Personal**: [https://awalsh.io](https://awalsh.io/) \--- Versatile full-stack freelance software engineer with experience across front-end, back-end, and AI/ML using languages such as TypeScript and Python. I have built commercial software used by hundreds of thousands of people. Some of my open-source work has been featured #1 on Hacker News, with 1000s of GitHub stars. I enjoy learning and thrive on difficult yet impactful real-world problems, and welcome new connections. ⮩ 💻 Software Engineering I began as a self-taught developer through freeCodeCamp in 2016. My first project was Mail for Good https://github.com/freeCodeCamp/mail-for-good. Since then, I have continued to practice my craft and improve. I later took on a part-time MSc in Artificial Intelligence at the University of Bath to augment my skills and learn the fundamentals of AI/ML and mathematics. ⮩ ⚙️ Back-end Development As a back-end developer, alongside employment I created the open-source project https://github.com/AndrewWalsh/openapi-devtools, and gave talks on the topic of automation of underlying API contracts via the OpenAPI standard at LaunchAcademy in Vancouver, Canada. And at API Conference in Berlin, Germany. I have extensive experience with REST and GraphQL APIs. I am also experienced in system architecture and have designed systems such as InsurTech validation workflows. ⮩ 🎨 Front-end Development Advanced knowledge of TypeScript, JavaScript, and frameworks like React. Broad experience across a range of front-end projects, including Electronic Health Records for telemedicine, dashboards for Kubernetes, and data analytics platforms. Robust understanding of the broader front-end ecosystem and advanced topics such as accessibility, web workers and service workers, bundling and practices such as code splitting, responsive design, various approaches to state management, and UX. ⮩ 🤖 Artificial Intelligence and Machine Learning Completed 12 8-week modules for a Master of Science in Artificial Intelligence at the University of Bath, with only the dissertation remaining. I have developed neural network models for HealthTech companies, and created data engineering projects for startups in the USA. Proficient with libraries such as Pandas/NumPy and data science practices.
Good day! You could call me Cy. My forte is mainly Java along with the Spring stack (Framework/Boot). My experience is not limited to it though. As long as the fundamentals are aligned with my understanding of a shared context, we could tackle almost anything! I'm quite well versed as well in the front end as well, ranging from JSPs to vanilla Javascript/HTML/CSS to a bit of Angular and Node, even shell scripting and what not. Other general things that I can help you with: * Mentoring (including application of best practices/industry standards) * Software Analysis and Design * Code Reviews * Development * Debugging/Root Cause Analysis * Refactoring * Reverse Engineering * Research/Feasibility Study
As a software engineer with over 14 years of experience across diverse domains and tech stacks, I believe sharing knowledge is one of the best ways to give back to the tech community. I want to become a Codementor to help others navigate complex technical challenges, gain a deeper understanding of distributed systems, and grow their skill sets. Mentoring also allows me to stay sharp and continuously learn by engaging with fresh perspectives and new challenges from mentees.
A result-oriented developer and mentor with 8+ years of professional experience. Precious possesses excellent communication skills, is a joy to work with, and takes initiative where necessary. With every task, He prioritizes excellence, precision, and speed, with a proven track record.
Production systems fire fighter - there is nothing I cannot debug. I will not do your homework. Member of Mensa & Intertel, backwoods enthusiast. Human languages for fun, programming languages for breakfast. I left Detroit in the Dot-Com era to live deep in a north woods cabin w/my animal family. I solve my own problems with grace and efficiency. I'll be happy to solve yours! My five most valuable skills: * Anticipation (of variables and user expectations) * Debugging * Machine logic * Problem solving * Versatility These skills when applied to any challenge, design or technology stack, have consistently produced efficient and reliable results across an unlimited technology stack since childhood. What I enjoy most about Code Mentor: Utilizing my unique skill set to solve a diverse set of challenging critical issues for people in a bind. My most satisfying sessions solve very difficult and unique situations for those who have already exhausted their available human and intellectual resources. FAQ * No, I am not a robot. But my bots might be one day. * No, I will not travel anywhere , unless you provide a space ship or parachute. * I try to make a record of all changes and be able to revert them quickly, but it is your responsibility to archive responsibly ** SUPPORT SPECIALTIES ** - AWS Anything - Dedicated support through to resolution - Defensive cyber security - Disaster recovery - Emergency response for mission-critical systems - High pressure environments - Forensics / electronic discovery Check out my video course on pfSense! https://www.packtpub.com/product/hands-on-pfsense-2-x-for-firewalls-and-routers-video/9781789805017
I have been working with Flutter since 2018 and I'm currently leading 4 teams of 15 developers at Delivery Hero.
A dedicated and visionary leader with extensive experience in cross-platform mobile application development, I excel at both independent and collaborative projects. My primary focus is on Flutter—the powerful, open-source UI toolkit by Google—where I create scalable, visually engaging, and performance-driven apps that run seamlessly on multiple platforms from a single codebase. My technical background spans a range of technologies, with Flutter and Dart at the core of my current workflow. I am highly proficient in integrating Firebase’s suite of cloud-based tools (such as Firestore, Authentication, and Cloud Functions) into Flutter apps, ensuring real-time data sync, secure user management, and robust backend operations. In addition, my prior experience in native Android and iOS development, as well as knowledge of server-side frameworks and database systems, allows me to craft end-to-end solutions that are both maintainable and easily scalable. I am passionate about UI/UX principles, ensuring that every Flutter application I create is intuitive, accessible, and visually appealing. Beyond the technical details, my interpersonal skills and leadership qualities enable me to lead teams effectively, collaborate with stakeholders, and guide projects from conceptualization to successful launch. In my spare time, I enjoy experimenting with new Flutter features, exploring state management solutions like Provider or Bloc, and building user-friendly apps that streamline day-to-day tasks—ultimately striving to improve the quality of life for users everywhere.
I have created many React applications deployed to production over the last years. I am able to understand large codebases and get productive pretty fast. I can help you get your project done in time. I have worked as the Lead Developer at a company using React. Since I started freelancing, I helped companies all over the world to ship features and resolve bugs while improving their software quality. I've got a B. Sc. in Computer Sciences. For my bachelor's thesis, I wrote a large web application which universities use to help professors teach large audiences. I helped others get started with web development at Meetups in Munich, Augsburg and Singapore. From time to time I write articles about web development which have been viewed over 40 thousand times so far. I love improving software quality to create sustainable web applications. Get in touch and we will figure out what I can do for you :-)
- In my career I worked in multiple roles (Software Developer, Software Architect, User Experience Designer, Consultant). - I'm eager to understand problems in full detail to come up with the best solution (in terms of time/budget/quality). - Creator of open source project goodplay, an Ansible-/Docker-based testing tool.
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