Hai Ren
@hairen
Senior Full Stack Software Engineer at Goforce Oy, applying agentic AI workflows to accelerate feature delivery and increase team productivity by 40%.
FinlandWhat I'm looking for
At Goforce Oy, I architect and deliver full stack applications, including a social media native app, a cloud-based data management platform, and a construction material recycling application. I work with Java, Spring Boot, Angular, and TypeScript.
I introduced agentic workflows using Claude Code, Cursor, and Lovable, increasing team productivity by 40%. I also integrated Amazon SageMaker recommendations and AWS Bedrock Generative AI features for user engagement and content moderation.
I own application lifecycles from system design and cloud infrastructure through deployment and monitoring, with a focus on security and availability. I mentor five engineers in AI-first development and secure coding, and hold AWS certifications in Generative AI and Machine Learning.
Experience
Work history, roles, and key accomplishments
Senior Full Stack Software Engineer
Goforce Oy
Jun 2018 - Present (8 years 3 months)
Architected and delivered scalable full stack solutions for social media, data management, and recycling applications. Spearheaded agentic workflows and integrated machine learning capabilities, mentoring a team of five engineers.
Senior Software Engineer
Leadin
Oct 2016 - May 2017 (7 months)
Developed and maintained full stack features for a B2B SaaS platform, focusing on performance optimization and scalable architecture. Implemented RESTful APIs and advocated for secure coding practices.
Senior Software Engineer
In4mo Oy
Dec 2014 - Sep 2016 (1 year 9 months)
Designed and implemented full stack web applications for the insurance sector, leading migration to microservices and introducing CI/CD pipelines. Mentored junior developers on design patterns and secure coding.
Software Engineer
Conmio Ltd
Sep 2009 - Jul 2014 (4 years 10 months)
Developed and maintained responsive web applications, contributing to RESTful services and MVC architectures. Integrated cloud-based services and built reusable front-end components.
Software Developer
Finactu Oy
Jun 2007 - Oct 2008 (1 year 4 months)
Programmed in Java, HTML, CSS, and JavaScript to develop a financial structured products management web application. Implemented complex business logic and data visualization components.
Education
Degrees, certifications, and relevant coursework
Amazon Web Services (AWS)
AWS Certified Machine Learning Engineer – Associate, Machine Learning
AWS Certified Machine Learning Engineer – Associate certification from Amazon Web Services, completed in April 2026.
Gofore
AI-Driven Developer, Artificial Intelligence
AI-Driven Developer certification from Gofore, completed in September 2026.
Amazon Web Services (AWS)
AWS Certified Generative AI Developer – Professional, Generative AI
AWS Certified Generative AI Developer – Professional certification from Amazon Web Services, completed in August 2026.
Aalto University
Master of Science, Computer Science
Master of Science in Computer Science from Aalto University, completed in 2009.
Harbin Institute of Technology
Bachelor of Science, Computer Science
Bachelor of Science in Computer Science from Harbin Institute of Technology, completed in 2005.
Availability
Location
FinlandAuthorized to work in
Salary expectations
Social media
Job categories
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