Juha Helminen
Senior Software Developer at Reaktor
Helsinki Metropolitan Area Finland
Summary
👤
Senior🎓
Top SchoolJuha Helminen is a senior software developer and architect with 12 years of experience designing and implementing web-based digital services across e-commerce, telecom, finance, media, and digital marketing. He combines a programmer’s love for elegant solutions with a pragmatic focus on solving real user and business problems, routinely bridging backend, frontend, and data-processing concerns. Technically versatile, Juha has shipped systems using Node.js, Java, Clojure and Scala on the backend, TypeScript/React on the frontend, and PostgreSQL/Elasticsearch/Redis for persistence, while leveraging Docker and Ansible for deployments. At Reaktor he applies Lean, Kanban and Scrum practices to deliver measurable outcomes including analytics-driven optimization and personalization flows. Educated at Aalto/Helsinki University of Technology with international study at NUS, he pairs academic depth with hands-on delivery and a knack for turning analytics into product improvements. A detail not obvious from titles: his background spans both low-level scripting and large-scale architecture, enabling him to move fluidly between prototyping and production-grade systems.
12 years of coding experience
National University of SingaporeDoctoral Degree, Doctoral Degree at Aalto UniversityMaster's Degree, Master's Degree at Helsinki University of TechnologyCorporal, Corporal at Finnish Defence ForcesMatriculation, Matriculation at Hyvinkään yhteiskoulun lukio
Swedish, German, English, Finnish
Github Skills (22)
browser10
nextjs9
react9
compiler8
synchronize8
typescript8
javascript8
static-site-generator8
hybrid8
ssg7
synchronization7
vercel7
server-rendering6
react-framework6
parser6
Programming languages (2)
Github contributions (5)
juhahe/zeppelin
Feb 2021 - Feb 2021
Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.
Contributions:6 pushes, 1 branch in 1 day
data-drivendata-analyticsanalyticsnotebooksql
juhahe/registry-sync
Feb 2021 - Feb 2021
synchronize selected packages from a remote npm registry
Contributions:2 pushes, 2 branches in 2 days
rsyncconflict-resolutionnodejsnpm-registrysynchronize
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