Simon Hylander

Senior Software Engineer / Lead Engineer

With 11+ years as a fullstack dev I have a built up a diverse skillset across a large of number of different technologies.
Nowadays you will mostly find me in the Typescript or Golang ecosystems.

I am currently leading client side engineering at Byggdagboken (web + app) and UX, where I'm driving technical direction. Obsessed with exceptional experiences and productive tooling.

Location
Sweden
Experience
11+ years
Email
hylandersimon@gmail.com

Work Experience

Byggdagboken2024 - Present

Lead Software Engineer

Typescript, Node.js, Next.js, React, Lambda, MySQL, Drizzle, TailwindCSS, Tanstack, Java, PHP

  • Established full ownership and led direction for all client-side engineering, native apps, and web client UX, directly influencing product roadmap and significantly improving user satisfaction.
  • Led a strategic re-architecture of the web platform, implementing a strangler-fig migrationfrom a monolithic legacy system to a modern web client. Designed and deployed route-level canary rollouts via CloudFront Functions.
  • Transformed engineering code review processes by integrating AI Code Reviews, enabling pre-submission iteration that slashed senior engineer review time by 80%. This initiative significantly enhanced contributor growth and accelerated overall engineering throughput.

Skoglit2018 - 2024

Senior Software Engineer

Typescript, Node.js, Next.js, React, Vue, Svelte, PHP, Java, Quarkus, Hibernate, MySQL, AWS.

  • Lead the technical architecture and development of a startup focused on fraud reduction in online marketplaces, delivering secure and smart payment flows with a strong emphasis on accessibility and user trust.
  • Built a module for the municipality of Ljusdal to allow residents to search for their address and get an overview of collection days for their garbage bins.
  • Developed a project management system, internal tools and dashboards for a company specialized in private sewage and water.
  • Developed a platform focused on gamification of sales competitions.

Docu Group Sweden2016 - 2018

Software Developer

PHP, Symfony, Doctrine, MySQL, Oracle PL/SQL, JQuery, Java, SOAP, REST, Hibernate, Linux, Bash

  • Built a system to manage orders and customers for one of the organization's businesses focusing on the sale of magazines and advertisements.
  • Developed and maintained several websites for a medium sized media company.
  • Built a webhop using WooCommerce for selling digital goods and merchandise.
  • Solo maintained about 10 internal Java/PHP based systems.

Docu Nordic2014 - 2016

Junior Developer

PHP, Symfony, Doctrine, MySQL, Oracle PL/SQL, JQuery, Java, SOAP, REST, Hibernate, Linux, Bash

  • Worked on a SOAP platform focused on delivering the organization's core data to numerous different european businesses.
  • Developed a middleware REST API for the organizations internal systems and databases.
  • Custom reports and statistics for internal use.
  • Integrations with third party services.

Featured Projects

Uppgraderingspaket.se

Uppgraderingspaket.se

I18N

I18N

Treddy.se

Treddy.se

Skills

Full-Stack Development

TypeScript (Node.js, Next.js, React, Vue, Svelte, Tanstack), Golang, Java, PHP, tRPC, Redis, SQL/NoSQL (MySQL, PostgreSQL, Oracle, Elasticsearch), Drizzle ORM, TailwindCSS

TypeScript (Node.js, Next.js, React, Vue, Svelte, Tanstack)GolangJavaPHPtRPCRedisSQL/NoSQL (MySQL, PostgreSQL, Oracle, Elasticsearch)Drizzle ORMTailwindCSS

Architectural Leadership

System Design, Cloud-Native Architectures (AWS), Microservices, Serverless, Domain-Driven Design, API Design, Scalability, Observability (OpenTracing, Envoy, Jaeger)

System DesignCloud-Native Architectures (AWS)MicroservicesServerlessDomain-Driven DesignAPI DesignScalabilityObservability (OpenTracing, Envoy, Jaeger)

Technical Strategy

Platform Modernization, Technical Roadmap Definition, Technology Selection & Adoption, Performance Optimization

Platform ModernizationTechnical Roadmap DefinitionTechnology Selection & AdoptionPerformance Optimization

Team & Organizational Impact

Mentorship (Junior-Senior), Process Optimization, Developer Productivity

Mentorship (Junior-Senior)Process OptimizationDeveloper Productivity

Cloud & DevOps

AWS (Lambda, SQS, ECS, S3, RDS, CloudFront), Vercel, Docker, CI/CD Pipelines, Infrastructure as Code (Pulumi, CDK, SLS, SST), Canary Rollouts, Feature Flagging

AWS (Lambda, SQS, ECS, S3, RDS, CloudFront)VercelDockerCI/CD PipelinesInfrastructure as Code (Pulumi, CDK, SLS, SST)Canary RolloutsFeature Flagging

Let's Get In Touch!

Interested in collaboration or just want to say hi? Feel free to reach out through any of these channels.