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Nicolas Wernli

@nicowernli

Tech Lead | Product-minded Software Engineer | 15+ years building SaaS & digital products | Agile | Stakeholder Management

Spain

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What I'm looking for

I’m now looking to bring my 15+ years of Software Engineer experience into a Product Owner role, where I can take greater ownership of product decisions, prioritization and outcomes.

I’m a technical leader with 15+ years of experience building digital products, SaaS platforms and web applications.

Throughout my career, I’ve worked across the full product development lifecycle — from understanding requirements and shaping solutions to architecture, implementation, delivery and continuous improvement.

Working closely with stakeholders and leading engineering teams has taught me that building the right thing is often more important than simply building it well. I enjoy understanding the problem behind a request, challenging assumptions, weighing trade-offs and turning ambiguous requirements into solutions that create measurable value.

My engineering background gives me a strong technical foundation, while my experience leading teams and working with stakeholders allows me to connect product decisions with delivery realities.

I’m now looking to bring that experience into a Product Owner role, where I can take greater ownership of product decisions, prioritization and outcomes.

I’m particularly interested in products where technology, business needs and user experience intersect.

Experience

Work history, roles, and key accomplishments

Team Lead

Reffle

Dec 2024 - Jul 2026 (1 year 7 months)

Led a legacy WordPress migration to a SaaS architecture and built a PHP Laravel REST API handling ~2M daily page views and 600k+ monthly transactions. Led UI/UX modernization and established frontend engineering standards, improving page load by 20% and Lighthouse scores by 15%.

PHP Laravel REST APIs UI UX Migration JavaScript Responsive Design Performance Optimization

Senior Fullstack Developer

Cecil

Mar 2021 - Dec 2024 (3 years 9 months)

Spearheaded development of high-performance SPAs using React and TypeScript to improve scalability and maintainability for complex product workflows. Maintained a high-performance Go and PostgreSQL REST API and collaborated with designers and backend engineers to deliver user-facing features.

React TypeScript Go PostgreSQL REST APIs

Senior Fullstack Developer

Cloudline Solutions

Jun 2018 - Mar 2021 (2 years 9 months)

Designed and developed responsive Angular and TypeScript interfaces to improve cross-platform usability. Designed and built high-performance REST APIs using Go, DynamoDB, AWS SQS, and AWS Lambda to support scalable cloud workflows.

Angular TypeScript Responsive UI REST APIs Go DynamoDB AWS Lambda Amazon SQS

Senior Frontend Developer

ClearPeaks

Nov 2017 - Nov 2018 (1 year)

Managed a team of 4 developers building an enterprise BI solution, improving dashboard performance and delivering scalable data visualization features. Translated business goals into scalable frontend architectures and user-friendly data interfaces.

Team Leadership Enterprise BI Data Visualization Frontend Architecture

Senior Fullstack Developer

Bestseller

Jan 2017 - Dec 2017 (11 months)

Improved a global e-commerce frontend by delivering new features and performance enhancements to strengthen the shopping experience. Developed multi-store e-commerce features under the Sales Cloud Commerce platform to support +32 brands within the Bestseller umbrella.

Performance Optimization Multi Store Development Sales Cloud