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Heikki Parviainen

@heikkiparviainen

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Senior systems developer specializing in scalable backend, Kubernetes, and fintech solutions.

Indonesia

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What I'm looking for

I am seeking senior engineering roles where I can lead scalable backend and cloud infrastructure projects, contribute to fintech or open banking products, mentor teams, and work in an innovative, collaborative environment.

I am a Senior Systems Developer with a Master’s Degree in Computer Science specialized in Embedded Systems, based in Bali, Indonesia. With over ten years of experience, I have designed and implemented scalable microservices on Kubernetes, led multiple development teams, and delivered reliable production systems for fintech and open banking across Southeast Asia and the Middle East.

I am proficient in Golang and Python, experienced with PostgreSQL, machine learning model productionization, cloud migrations, and DevOps practices. I excel at turning high-level goals into actionable requirements, collaborating with clients and partners, and driving projects to successful outcomes.

Experience

Work history, roles, and key accomplishments

Senior Systems Developer

Brankas

Oct 2018 - Nov 2024 (6 years 1 month)

Designed and implemented scalable microservices on Kubernetes, led multiple development teams, and delivered FinTech/Open Banking solutions across Southeast Asia and the Middle East.

Golang Python Kubernetes Microservices PostgreSQL Distributed Systems Team Leadership CI CD

Senior Back-end Developer

Julo Finance

May 2017 - Oct 2018 (1 year 5 months)

Designed and productionized data pipelines and ML microservices, migrated backend infrastructure from AWS to Alibaba Cloud, and reduced database downtime during a 2 TB Postgres migration to meet regulatory requirements.

Python Docker Kubernetes TensorFlow H2O PostgreSQL Data Pipelines Cloud Migration

Full Stack Developer

PT. Nomura Research Institute

Sep 2016 - Mar 2017 (6 months)

Developed server prototypes with Django, deployed services on AWS with nginx/WSGI, and implemented front-end HTML/CSS/JavaScript in a small cross-functional team.

Django Python AWS Nginx JavaScript HTML CSS Deploying

Software Engineer

Intel

May 2013 - May 2016 (3 years)

Developed security testing tools and analyzed Android driver software, then contributed to an Android camera tuning app and related C-library changes while completing a Master's thesis.

C++Android Security Testing Cameras Embedded Software Android App Development

Education

Degrees, certifications, and relevant coursework

Tampere University of Technology

Master of Science, Electrical Engineering

2007 - 2016

Activities and societies: Majors: Embedded Systems, Digital and Computer Systems; Minors: Software Systems, Communications Engineering.

Master of Science in the Degree Program of Electrical Engineering with majors in Embedded Systems and Digital and Computer Systems; thesis developed for Intel's camera team.