Sani Huttunen
Head of Engineering · Principal Software Architect · Lead Software Engineer
Hands-on engineering leader with 20+ years across embedded systems, enterprise .NET, distributed backend systems and modern full-stack development. Most recently led a 15-person engineering organization as Head of Engineering, pairing strategic ownership with direct technical execution: redesigning core system throughput, delivering a regulatory-critical project against a hard deadline, and personally shipping production software.
Skills
Leadership
Languages and frameworks
Cloud, data and operations
Payments and identity
Highlights
- Scaled transaction throughput 5–20× by designing and shipping an event-transaction orchestrator with dynamically scalable workers.
- Delivered a new Danish tax reporting system from concept to production in three months, closing a previously unknown compliance gap with Skattestyrelsen.
- Drove the company’s first net reduction in technical debt on record, without slowing feature delivery.
- Built Siam Platform single-handedly: a multi-tenant SaaS platform for bookings and business management, with authentication, payments, automated testing and deployment.
Experience
Jan 2025 – Oct 2025
Head of Engineering
Anyday.io
Senior-most technology leader, reporting directly to the CEO and leading a 15-person engineering organization across product squads, DevOps and backend architecture.
- Owned technical strategy, architecture and CI/CD standards; partnered with executive leadership on roadmap prioritization, budget and headcount planning; remained hands-on in production incidents and architectural decisions.
- Led the company’s cloud migration from Azure to AWS and the transition of the microservices estate to Kubernetes.
- Designed and deployed a new event-transaction orchestrator with dynamic worker scaling, improving throughput at least 5× with just two workers, with a modelled ceiling of about 20× limited by the database.
- When an undisclosed obligation to report to the Danish tax authority (Skattestyrelsen) surfaced, took ownership of the build and delivered the reporting system from scratch within a three-month deadline.
- Introduced structured refactoring practices that produced the first measurable net reduction in technical debt in company history, while maintaining full roadmap delivery.
May 2018 –
Independent developer and consultant
Own business
Independent software development and consulting, primarily for clients in fintech and service industries. Run today under the name Deqartis.
- Designed and built Siam Platform, a multi-tenant SaaS platform for bookings and business management, single-handedly in Node.js, Express, TypeScript, Vite and SQL Server.
- Production-grade security: signed sessions, passkeys and two-step verification, encrypted personal data and no secrets in source control.
- Automated database migrations, tests with Vitest and Playwright, and deployment to Azure from a single pipeline.
Sep 2022 – Mar 2023
Staff Software Engineer
Agoda Services Co., Ltd.
- Backend development in Scala, Spark and Hadoop supporting high-concurrency, high-volume data systems, alongside .NET and C# services.
- Contributed to payment and bank-integration components within a large-scale, high-availability environment.
Dec 2019 – Aug 2022
Senior Systems Developer (consultant)
Profit Software
.NET and C# development for pension and insurance platforms, including secure web and backend communications, SQL Server database design and Node.js and React frontend work.
Jun 2018 – Nov 2019
Senior Systems Developer
Svenska Spel AB
- Designed and delivered a new payment solution in three months against a hard New Year’s Eve deadline, after new gambling regulations required the company and its payment systems to be split in two.
- Built payment and identity integrations (BankID, Freja eID, Swish, PayEx, Masterpass) for Sweden’s national gambling operator, with secure communications and SQL Server database design.
Earlier experience
2017–2018
Senior Systems Developer
Söderberg & Partners AB
Insurance and pension platform development (.NET, MVC) on Azure.
2016–2017
Senior Systems Developer
Allra Sverige AB
Banking, insurance and pension solutions; BankID implementation.
2012–2016
Senior Systems Developer (consultant)
Bouvet AB
BI and ETL development (SSIS, SSAS, SSRS), Android and Windows Phone apps, SharePoint, Angular and jQuery frontends.
2010–2012
Systems Architect (consultant)
Mogul AB
E-commerce and CMS platforms (EPiServer, Litium), WPF and WinForms, secure web services.
2008–2010
Senior Software Developer
Interactive Medica
SaaS platform development and secure communications.
2006–2008
Software Developer
Ztorm AB
Built a download client for an early digital storefront, ahead of Steam, plus copy protection for portable devices. Nominated for the Microsoft .NET Awards 2007.
2000–2001
Software Engineer / thesis employee
IsBit AB · Ericsson
Embedded Linux, C and C++; implemented and benchmarked an IPsec stack for a VoIP system.
Education and certifications
1997–2001, 2004–2005
Computer Science (Datateknik)
Mälardalen University
Certifications
- Microsoft Certified: DevOps Engineer Expert (AZ-400)
- Microsoft Certified: Azure Developer Associate (AZ-204)
Additional information
Member of Mensa. Competitive chess player. Builds independent technical projects, including a 3D solar system simulator based on JPL Horizons and a Stockfish-powered chess analysis tool.