I'm a full-stack developer with 18 years experience. My specialties are Rails, Postgres and Chef/AWS. I'm also very comfortable in Javascript, Python, and a few other things.
At the low level I've done paid work writing custom Postgres extensions with C and SIMD CPU instructions and implementing performance-critical network services with Rust. At the high level I can design and wireframe features, show their business value, talk to customers, lead other developers, mentor, consult on application architecture, and advise on scaling/performance. You don't want me to pick your color scheme though. :-)
I am reliable, easy to work with, quick to turn things around, and a good communicator. I can work solo or on a team, either as lead or a team member. I value client satisfaction as highly as technical excellence.
Hi there! I’m a product-focused software engineer based in Mexico with over 7 years of experience making native iOS applications with both Objective-C and Swift.
Over the years, I've worked on over 50 apps and I've helped to ship more than 10 high-profile iOS apps with millions of users.
SEEKING WORK - Based in Cologne, Germany, remote or Europe preferred
I do custom electronics, robotics, and embedded software development - I specialize in quickly turning ideas into prototypes. I've built custom automation equipment for chemistry labs, sensors that are in use in household/utility applications, control circuitry for construction equipment, 3d printing electronics, data acquisition equipment. No project too small. Few projects too large. Deep discounts for open source hardware work.
I would also be happy to come over (anywhere in Europe) and teach any of the above skills to a small group of interested people. I've taught courses in electronic assembly (SMD), 3d printing (building/using printers, iterative 3d model design using programming) and robot design and construction. I've taught courses at several universities, hackspaces, and conferences.
SEEKING WORK - Remote, travel possible depending on location and duration.
Location: North-east UK
What I do: Data migration, transformation, and processing. Prototype development. Feasibility studies.
In the past I've been a network engineer, run large-scale Debian installations doing devops before it had a name, and been responsible for servers in Antarctica. I have experience with a wide range of different Unix tools and technologies, at various levels of the stack. This gives me the ability—and the perspective—to pick the best combination of tools for any particular project, rather than simply treating everything as a nail because all I have is a hammer.
I focus particularly on taking on “weird” or niche data or exploratory projects end-to-end; things that wouldn’t be a fit for a standard web or development agency.
Previous work:
* Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)
* University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)
* School data processing app (Elixir/Phoenix, PostgreSQL)
I am looking for full-time or part-time work, either one is fine. If you are looking to get a small project done, or you have an existing project where some maintenance work needs to be done (perhaps on a regular basis), then I would love to hear from you.
I am a very experienced Python developer, having used the language in all kinds of areas and situations, including web development (Flask, Django, Pylons, Google App Engine, etc), desktop GUI development, database access (MS SQL Server, MySQL, and Postgres), ORMs, REST APIs, scripting, backend development, automated testing, web crawling/scraping, data extraction and parsing/ETL, parsing, language implementation, games, etc.
I have a lot of experience with relational databases and SQL as well, especially MS SQL Server. In fact, in all of my previous jobs I have used SQL, including designed database schemas, writing queries, measuring performance and optimizing queries, writing views and stored procedures, etc.
I am also available for technical writing (I kept a programming blog for many years, mostly about Python), and for front-end development using React.
(For the record: Although Python is my main programming language, I am also interested in, and have worked with, many other programming languages, including C, D, Delphi, Go, C#/Mono, Ruby, OCaml, Prolog, Lisp, Scheme, etc, on Windows, Mac OS X and Linux systems. I am also available to work on projects in these languages.)
- Mobile app development: Android, iOS, PhoneGap/Cordova.
- Cloud hosting: Creating scalable apps that run on Heroku, AWS and Firebase.
- SEO: On-page audits and implementing required changes.
- Code quality: Reducing defects in existing projects by integrating test suites, staging + development environments, Continuous Integration, planning boards and code reviews.
Examples projects independently developed and sold by myself:
- Checkbot for Chrome (https://www.checkbot.io/), tests if your website is following 50+ SEO, speed and security web best practices. Rated 4.9/5 with 15K+ active users and has paying users. Everything was done by myself, including frontend and backend work (TypeScript, Vue, Firebase, Docker, Node, Webpack, Netlify), website and UI design, and the comprehensive best practices guide that goes with the Chrome extension (https://www.checkbot.io/guide/).
- Fresco for Android (https://play.google.com/store/apps/details?id=org.seanw.fres...), easy to use yet feature packed digital painting app for phones and tablets. The app features layers, customisable brushes, image filters and more. Rated 4/5, over 500K free downloads, over 10K copies sold. Implemented with Java and C.
I'm a full-stack developer with 18 years experience. My specialties are Rails, Postgres and Chef/AWS. I'm also very comfortable in Javascript, Python, and a few other things.
At the low level I've done paid work writing custom Postgres extensions with C and SIMD CPU instructions and implementing performance-critical network services with Rust. At the high level I can design and wireframe features, show their business value, talk to customers, lead other developers, mentor, consult on application architecture, and advise on scaling/performance. You don't want me to pick your color scheme though. :-)
I am reliable, easy to work with, quick to turn things around, and a good communicator. I can work solo or on a team, either as lead or a team member. I value client satisfaction as highly as technical excellence.
You can see some of my recent work here:
https://illuminatedcomputing.com/portfolio
https://github.com/pjungwir/aggs_for_arrays
https://github.com/pjungwir/db_leftovers
If you'd like to work together, I'd be happy to discuss your project!: [email protected]