Rafal Senior Software Radolinski

Took on a lot of technical lead duties, worked closely with the business to ensure alignment with engineering. Led small teams of developers on multiple projects.

• For nearly a year, served as the primary developer for the company’s flagship desktop application used professionally by the NHS staff, building features in .NET (desktop) and Ruby on Rails (back end API) as well as developing integrations between our systems and the NHS clinical systems (SystmOne and EMIS).
• Delivered numerous Ruby on Rails APIs and web features, often acting as project driver to ensure timely and successful delivery.
• Led teams of developers on a variety of projects, providing technical direction, mentoring, and ensuring high-quality code delivery.
• Conducted technical interviews and successfully onboarded multiple senior engineers, significantly strengthening the team’s technical capabilities.
• Helped to design and build, and later fully maintained the company's AWS cloud infrastructure using Infrastructure as Code (IaC), enabling zero-downtime, serverless deployments while reducing operational overhead.
• Modernized infrastructure to achieve substantial cost savings and improved scalability and stability across multiple products.
• Optimized databases and implemented caching strategies, leading to faster performance and reduced system load.
• Built and integrated a robust monitoring and logging systems using AWS tools and New Relic, which accelerated issue detection and resolution, and reduced backend bugs and incidents significantly.
• Improved development cycles by enhancing CI/CD pipelines, raising test coverage, and introducing structured documentation practices.
• Partnered with product owners to ensure strong alignment between engineering and business objectives.
• Spearheaded usage of various AI tools to compliment and enhance development processes.
• Worked closely with executive leadership to define the direction of flagship products.

Helped to build core features for company's flagship product "Nexus Mods" (50M+ members).

• Led development of flagship web products that significantly boosted premium account sales and contributed to the platform’s overall growth and popularity.
• Modernized and often redesigned and rebuilt from scratch some of the core website features, such as state-of-the-art file upload system, user notification systems and many less glamorous sounding but equally important parts of the website and its underlying infrastructure.
• Spearheaded migration from a legacy monolith to a microservices architecture, resulting in substantial performance improvements, increased scalability, and greater developer autonomy for building new features.
• Modernized deployment workflows by introducing Kubernetes, orchestrating the migration of existing applications, and establishing best practices for containerized environments.
• Implemented CI/CD pipelines, transforming the development lifecycle into a faster, more reliable, and automated process that enhanced delivery speed and code quality.
• Facilitated daily Agile ceremonies, ensuring cross-team alignment, proactively resolving blockers, and driving consistent project progress.
• Enhanced website security by identifying vulnerabilities, applying patches, and regularly updating software components.
• Integrated third-party APIs to add valuable functionality and improve overall user satisfaction with web applications.
• Reduced server response times by implementing performance-enhancing back-end solutions and database optimizations.
• Performed routine maintenance tasks, ensuring optimal performance at all times while minimizing downtime risks.

Hired as mid-level web developer, progressed into tech lead.

• Led multiple small teams across diverse projects, making critical technical implementation decisions to ensure efficiency, scalability, and long-term maintainability.
• Architected and delivered standout product features, attracting thousands of new customers, and contributing to setting higher industry standards.
• Developed robust, high-performance solutions that were instrumental during the company’s early growth stage, enabling successful onboarding of the first clients and accelerating traction in the market.
• Collaborated directly with the CEO on product strategy, influencing company direction and contributing to high-level decision-making.
• Organized and facilitated weekly sprints and daily SCRUM meetings, ensuring alignment, removing blockers, and driving consistent delivery across teams.
• Managed and optimized database clusters and implemented caching strategies to enhance system reliability and performance.
• Authored technical specifications, outlined new features, and built prototypes, providing clarity for development teams and accelerating feature delivery.
• Performed numerous system administration and DevOps tasks, ensuring operational stability and smooth deployments.

Carreer shift into software development.

• Learned the ropes as a freelancing junior developer on various small projects, mainly using PHP (LAMP) and jQuery / Backbone.js.
• Built multiple web solutions from scratch that would then be used commercially by my clients.
• On one standout project, helped to build integrations between web servers and embedded systems.