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.
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
I18N
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
Architectural Leadership
System Design, Cloud-Native Architectures (AWS), Microservices, Serverless, Domain-Driven Design, API Design, Scalability, Observability (OpenTracing, Envoy, Jaeger)
Technical Strategy
Platform Modernization, Technical Roadmap Definition, Technology Selection & Adoption, Performance Optimization
Team & Organizational Impact
Mentorship (Junior-Senior), Process Optimization, Developer 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