I'm Nerijus. I own products end-to-end and I care about what they do for the business, not just the code.
- Problem-first, tool-secondI figure out what actually needs building, then I build it. No wasted cycles on the wrong thing.
- Full-cycle velocityI ship in days what used to take weeks. AI-first means I own the whole thing - idea to production.
- Connects the dotsI've shipped SEO systems, marketing platforms, and growth tools. I see how the pieces fit — not just my piece.
- Outcomes over outputI think about what moves the business, not how many tickets I close.
Seedgent – a RAG-powered job matcher I built to learn agentic AI patterns
Read Case Study →Experience
I started building websites at 14. After school, I got hired by a Swiss agency and worked remotely for 7 years, building sites for clients like CERN and EPFL.
Then I realized code alone doesn't matter. Clients needed revenue, not websites. I joined Single Grain to work closer to the business, learned how growth and marketing actually work, and started building systems where the code itself drives outcomes.
Generation Genius taught me high-growth. First developer at a startup later acquired for $100M, scaling from 250K to 1.25M visitors. Daily fires, real stakes, 6x revenue growth. That's where I learned to perform under pressure.
Post-2022, developers split into two camps: those who resisted AI and those who rebuilt around it. I went all in immediately. Learned agentic patterns, rebuilt my workflow, started delivering what used to take a team. Never looked back.
Where I've Built
Single Grain
Product Engineer
I started managing web properties, then evolved into building products and growth systems. Working alongside expert marketers, I learned how digital marketing actually works: SEO, conversion optimization, the full funnel.
In 2023, I built a complete programmatic SEO technology stack when it was still emerging. It generated $105K revenue from $28K spend (269% ROI), 1,670 leads, and 2 new clients. In 2024, I redesigned the homepage and increased leads 40%.
Early 2025, I spotted an opportunity to automate content creation with AI. I originated the concept, built the backend foundations and agentic workflows, and assisted the CTO in shaping the UX for ClickFlow. It now generates 100+ blog drafts weekly at 10x lower cost ($250 → $25 per post). I'm also building AI features for Karrot.ai, a B2B marketing platform.
Generation Genius
Lead Developer → Technical Consultant
I joined as the first full-time developer when the platform was incomplete. I inherited messy code from offshore contractors and had to rebuild the foundation. I refactored core systems, completed the site, and built the technical architecture that scaled from 250K to 1.25M monthly visitors while revenue grew 6x.
In 2024, the site started experiencing daily outages. I migrated the infrastructure myself, coordinated with the new host, and executed the move with zero downtime. Outages dropped to zero.
I spent almost 2 years working with the investment banker on acquisition due diligence: data analysis, retention reports, business metrics. The company became the #1 Fastest-Growing Education Company on Inc5000, earned recognition on TIME Magazine's 100 Most Influential Companies, and was acquired by Newsela for $100M in 2025.
Too Pixel
Developer → Lead Developer
I started my career at a Swiss web agency in Geneva, working remotely when remote wasn't common. I spent 7 years there building sites for clients like CERN, Notz Stucki, EPFL, and Newby of London. High-stakes projects that had to ship on time.
This was my foundation. I learned how to write clean code, ship under pressure, and work remotely effectively.
I'm Nerijus. I own products end-to-end and I care about what they do for the business, not just the code.
- Problem-first, tool-secondI figure out what actually needs building, then I build it. No wasted cycles on the wrong thing.
- Full-cycle velocityI ship in days what used to take weeks. AI-first means I own the whole thing - idea to production.
- Connects the dotsI've shipped SEO systems, marketing platforms, and growth tools. I see how the pieces fit — not just my piece.
- Outcomes over outputI think about what moves the business, not how many tickets I close.
Seedgent – a RAG-powered job matcher I built to learn agentic AI patterns
Read Case Study →Experience
I started building websites at 14. After school, I got hired by a Swiss agency and worked remotely for 7 years, building sites for clients like CERN and EPFL.
Then I realized code alone doesn't matter. Clients needed revenue, not websites. I joined Single Grain to work closer to the business, learned how growth and marketing actually work, and started building systems where the code itself drives outcomes.
Generation Genius taught me high-growth. First developer at a startup later acquired for $100M, scaling from 250K to 1.25M visitors. Daily fires, real stakes, 6x revenue growth. That's where I learned to perform under pressure.
Post-2022, developers split into two camps: those who resisted AI and those who rebuilt around it. I went all in immediately. Learned agentic patterns, rebuilt my workflow, started delivering what used to take a team. Never looked back.
Where I've Built
Single Grain
Product Engineer
I started managing web properties, then evolved into building products and growth systems. Working alongside expert marketers, I learned how digital marketing actually works: SEO, conversion optimization, the full funnel.
In 2023, I built a complete programmatic SEO technology stack when it was still emerging. It generated $105K revenue from $28K spend (269% ROI), 1,670 leads, and 2 new clients. In 2024, I redesigned the homepage and increased leads 40%.
Early 2025, I spotted an opportunity to automate content creation with AI. I originated the concept, built the backend foundations and agentic workflows, and assisted the CTO in shaping the UX for ClickFlow. It now generates 100+ blog drafts weekly at 10x lower cost ($250 → $25 per post). I'm also building AI features for Karrot.ai, a B2B marketing platform.
Generation Genius
Lead Developer → Technical Consultant
I joined as the first full-time developer when the platform was incomplete. I inherited messy code from offshore contractors and had to rebuild the foundation. I refactored core systems, completed the site, and built the technical architecture that scaled from 250K to 1.25M monthly visitors while revenue grew 6x.
In 2024, the site started experiencing daily outages. I migrated the infrastructure myself, coordinated with the new host, and executed the move with zero downtime. Outages dropped to zero.
I spent almost 2 years working with the investment banker on acquisition due diligence: data analysis, retention reports, business metrics. The company became the #1 Fastest-Growing Education Company on Inc5000, earned recognition on TIME Magazine's 100 Most Influential Companies, and was acquired by Newsela for $100M in 2025.
Too Pixel
Developer → Lead Developer
I started my career at a Swiss web agency in Geneva, working remotely when remote wasn't common. I spent 7 years there building sites for clients like CERN, Notz Stucki, EPFL, and Newby of London. High-stakes projects that had to ship on time.
This was my foundation. I learned how to write clean code, ship under pressure, and work remotely effectively.
Trusted by Founders and Marketing Leaders
What stands out about Nerijus is that he's not only excellent technically; he's a T-shaped developer with a breadth of marketing knowledge who can converse with marketing leadership about decisions that will impact revenue.
Zach GroveVP of Marketing, NextivaMinneapolis, USAThere are many developers out there, but very few that are as trustworthy and on top of things as Nerijus. Our agency continues to turn to him for help, and he always delivers. On top of his sharp skill set, he is an absolute pleasure to work with.
Kim CruickshanksCEO, Fuze BrandingLos Angeles, USAWorking with Nerijus as an agency has made our process and workflow unbelievable. He is incredibly talented developer but what really makes him stand out is his work ethic and steady approach. I highly recommend Nerijus.
Daniel MezaCEO, Muze DevelopmentHouston, USA
