Toni Parviainen
Hands-on Architect Full-Stack Developer Independent Contractor at Self-employed
Helsinki Metropolitan Area Finland
Summary
👤
Senior🎓
Top SchoolToni Parviainen is a hands-on architect and full-stack developer with 14+ years building business-critical systems for enterprise customers across Finland. As an independent contractor since 2020, he designs and implements cloud-native microservices and serverless solutions using .NET (including .NET 8), C#, TypeScript, React, Docker, Kubernetes/EKS, Azure and AWS. He blends architecture, technical leadership and day-to-day coding—often taking roles from pre-sales estimations to mentoring and recruitment—so solutions are both technically sound and delivery-focused. His background includes telecom-grade real-time systems and billing platforms, giving him deep experience in reliable, high-throughput architectures and integration patterns. Comfortable with SQL and NoSQL data models, messaging (RabbitMQ, NServiceBus) and infrastructure as code (Terraform, CI/CD), he favors pragmatic, testable designs that scale. Based in Helsinki, he pairs long-term system thinking with a developer’s appetite for shipping maintainable code.
14 years of coding experience
21 years of employment as a software developer
Bachelor’s Degree Business information technology, Bachelor’s Degree Business information technology at Haaga-HeliaVocational Qualification Business and Administration accounting, Vocational Qualification Business and Administration accounting at Kauppiaitten Kauppaoppilaitos
English, Finnish
Stackoverflow
2,297reputation
158kreached
46answers
5questions
typeof
top-5%
reflection
top-5%
Github Skills (84)
hexo10
typeof9
localization9
wcf-client9
forms9
higher-order-component9
react-hooks9
reflection9
wcf9
nodejs9
dates8
enums8
javascript8
quantities8
formik8
Programming languages (5)
Github contributions (5)
tparvi/appsettings
Jul 2011 - Oct 2011
Contributions:91 commits in 2 months
tparvi/tparvi.github.io
May 2015 - Nov 2016
Contributions:54 pushes, 2 branches in 1 year 6 months
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