Arek Jaworski
Software Architect — AWS · Node.js · JavaScript Contractor
Warsaw, Mazowieckie, Poland
Software architect and AWS/Node.js contractor with 6+ years collaborating across Europe (Finland, Poland, UK).
I’ve built Mobility-as-a-Service platforms with Finland’s largest provider, integrated transport services across Europe,
developed recruitment software in Poland, and architected solutions for a major property company in Finland.
I design and implement APIs that connect distributed systems into a unified backbone, and I advise on agile delivery,
software architecture, and process improvement. I also provide online tutoring and technical training.
Links
LinkedIn Profile Arek Jaworski
Jaworski Software House
Experience
Software Architect — AWS/Node.js/JavaScript Contractor · Jaworski Software House
March 2018 – Present · Remote / Europe
- Independent Node.js contractor supporting a leading European Mobility-as-a-Service provider.
- Designed, reviewed, and implemented integrations and software architecture across third-party transport services.
- Built backend REST microservices using AWS Lambda in a serverless architecture; authored API specifications and reviews.
- Led developer enablement: mentoring, knowledge-sharing, peer reviews, and improving the delivery pipeline.
- Contributed writing and code samples as a technical author; explored and documented trending topics.
Technical Writer · Baeldung
March 2017 – September 2018 · Remote
- Wrote, edited, and proofread articles on Java and the Spring Framework with runnable code examples.
- Researched topics, developed content, and adhered to style guides and best practices.
Software Engineer · RIGHT REVENUE LIMITED
August 2017 – February 2018 · Saintfield
- Node.js developer for backend REST microservices on AWS using a serverless framework and DynamoDB.
- Designed and implemented state-of-the-art infrastructure, integrations with external services, and secure CI/CD pipelines.
- Performed R&D and performance testing of new technologies.
Senior Software Engineer / Scrum Master · Liberty Information Technology
April 2014 – August 2017 · Belfast, United Kingdom
- Delivered advanced design and development in Java across the full SDLC.
- Implemented agile practices, facilitated all ceremonies, and supported Product Owners with backlog refinement.
- Led the first agile project (Home Full Quote) at Liberty Insurance Ireland in Dublin—completed on time and within budget; received the Inspire Award.
Analyst Developer · Marketstall Services and Software Solutions Ltd.
February 2013 – March 2014 · Templepatrick, Northern Ireland
- Developed EPOS software in OpenEdge; designed GUIs and front-end components.
- Integrated third-party software/hardware (TCP sockets, .NET/C#); wrote technical docs and Confluence wiki pages.
- Set up Jenkins release builds (ANT & Progress Compiler), automated software updates (PHP + C# client), and improved processes.
Analyst Developer · Henderson Group
June 2010 – January 2013 · Newtownabbey, Northern Ireland
- Built and maintained applications in Progress 4GL and FoxPro; scripting on Unix.
- Administered FoxPro/Oracle/Progress databases; optimized queries; produced BI cubes and reports in QlikView.
- Introduced JIRA, peer review, incident analysis, automation, and monitoring; provided 24/7 on-call support (rota).
Instructional Technologist · Ulster University
August 2009 – May 2010 · Newtownabbey, Northern Ireland
- Developed interactive e-learning tools, embedding usability and accessibility best practices.
- Partnered with academics and stakeholders to deliver exemplar online teaching materials and staff training.
Web Developer · Dark Water Studios
February 2008 – July 2009 · Londonderry, Northern Ireland
- Built cross-browser sites and web app front-ends (PHP, MySQL, HTML, CSS, JavaScript, AJAX, CMS frameworks).
- Administered web/database servers and version control; optimized schemas and queries.
- Created UI/game front-ends with Flash and ActionScript 2.0.
Enterprise Command Centre Analyst · Allstate Northern Ireland
July 2006 – February 2008 · Strabane, Northern Ireland
- Managed incident detection and response for critical applications/infrastructure in a 24×7 environment.
- Coordinated tasks across NI and US teams; produced documentation and knowledge transfer.
- Recognized with an achievement bonus for professionalism and service.