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Kristóf Hauser

@kristfhauser

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Senior Software Engineer and Tech Lead specializing in TypeScript, Node.js, scalable cloud-native systems.

Hungary

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What I'm looking for

I seek a Tech Lead or Senior Software Engineer role at a growth-oriented SaaS company where I can lead engineering, design scalable cloud-native systems, mentor teams, and drive product and architectural strategy.

I am a senior software engineer and tech lead with over eight years of hands-on experience building scalable cloud-native systems and SaaS products. I specialize in TypeScript, Node.js, AWS, and designing architectures that handle millions of requests.

As a founder and CTO/CEO of an IIoT SaaS startup, I raised €1.2M and led the development of a fully cloud-native platform with custom hardware, demonstrating product and fundraising capability. I have also led cross-functional teams, delivering large performance improvements such as a 600% query-speed increase and 40% faster deployments.

In consultancy and partner engagements I architected and implemented microservices, S3-compatible APIs, and log analytics platforms, and contributed to pre-sales, recruitment, and technical strategy. I hold AWS certifications and have deep experience with serverless, containerization, and cloud architecture best practices.

I seek a Tech Lead or Senior Software Engineer role where I can apply my leadership, architecture, and hands-on engineering skills to drive product success and scalable growth for a SaaS team.

Experience

Work history, roles, and key accomplishments

Current

Tech Lead

Current

Tresorit (via Apex Lab)

Sep 2025 - Present (4 months)

Designed and implemented an S3-compatible wrapper API in Go and architected Node.js microservices, reducing deployment time by 40% and enabling secure integration with Tresorit Core via CGO.

Go Node TypeScript CGO API Design Microservices S3 Security

Current

Tech Lead

Current

Apex Lab Ltd

Nov 2024 - Present (1 year 2 months)

Led a team of 7 developers to design and deliver log analytics and cloud-native solutions, improving query performance by 600% and accelerating deployment cycles by 40%.

TypeScript AWS Microservices Architecture CI CD Performance Optimization Team Leadership

Solutions Architect & Cloud Engineer

SnapSoft

May 2025 - Sep 2025 (4 months)

Planned and implemented cloud-native AWS solutions and assessments for multiple clients, delivering scalable architectures handling 1M+ requests daily.

AWS Cloud Architecture TypeScript Serverless Infrastructure as Code Scalability feasibility studies CI CD

Senior Full-Stack Engineer

ISZT Internet Szolgáltatók Hálózati Koordinációs Központja

May 2024 - Nov 2024 (6 months)

Refactored the Hungarian ccTLD backend from legacy Perl to modern TypeScript microservices and implemented CI/CD pipelines to improve maintainability and deployment velocity.

TypeScript Microservices CI CD DevOps Backend PostgreSQL Refactoring Scalability

CEO / Founder

IMM-DATA Kft.

Feb 2022 - Jan 2024 (1 year 11 months)

Founded and led a cloud-native IIoT SaaS company, raised €1.2M, and built a platform with custom hardware serving manufacturing clients and collecting industrial data.

Product Strategy IoT AWS TypeScript Terraform Kafka PostgreSQL Team Leadership

CTO / Founder

IMM-DATA Kft.

Apr 2021 - Jan 2022 (9 months)

Directed technological strategy and operations to develop a fully cloud-native IIoT SaaS platform and align engineering delivery with business objectives.

System Design Cloud Architecture IoT Terraform Azure GCP DevOps Team Management

Engineering Team Leader

Simon Plastics Ltd.

Aug 2018 - Apr 2021 (2 years 8 months)

Led a cross-disciplinary engineering team to develop a data collection and alerting system for 80 injection molding machines, delivering annual savings of ~100M HUF.

Embedded Systems Data Collection Team Leadership IoT SQL System Integration Project Management

Full-Stack Developer

Simon Plastics Ltd.

Jun 2013 - Aug 2018 (5 years 2 months)

Developed logistical and production data analytics tools, integrated Oracle/PostgreSQL/MSSQL systems, and built BI solutions to support manufacturing KPIs.

JavaScript SQL Oracle PostgreSQL MSSQL Data & Analytics BIツール Integration

Education

Degrees, certifications, and relevant coursework

Eötvös Loránd University

Computer Programming

2016 - 2019

Activities and societies: Maintained live timing system serving 10,000+ unique visitors and processing millions of requests per event; developed race control and analytics tools.

Contributed to race results systems and live timing platforms while affiliated with ELTE, applying software engineering to event operations and analytics.

Pannon Egyetem - University of Pannonia

Computer Science Engineer, Computer Science

2015 - 2018

Activities and societies: Involved in development of live timing systems and race control applications for national and international rally events.

Completed Computer Science engineering studies at the University of Pannonia, focusing on software and systems development and practical engineering projects.