about.

FINN MAINSTONE OPTICAL // ENGINEERING // INNOVATION

I haven’t sailed around the world, and I haven’t started my own company. But I’ve lived in different cultures, woken up at 5am to clean out pig stys, and been wake till 5am photographing concerts. I've been around enough and done enough to know exactly what drives me, I'm impatient, curious, ambitious and just the right amount of lazy to not accept repeating the mundane without a sprinkle of automation.

EARLY YEARS

Growing up between countries, a family with 4 kids following my father’s work in the oil industry. Born in the Essex countryside the youngest of the 4 siblings and 8 cousins on my mothers side, always surrounded by elders; we enjoyed endless summers, the late summer smell of the warm Pimm's soaked grass at the cricket club, mums cooking, mud cakes in the garden, moving tree branches on a Sunday after elevenses, the smell of a smoking bonfire, sailing around walton-on-the-naze, the beach, big skys, fields and farms. Falling asleep on my fathers lap while he mowed the lawn with our little yellow sit-on mower.

Then off to Scotland, wet, grey and climbing up Bennachie most weekends, wet and cold slushy skiing, waiting in the cold to be picked up from school, Radio 1 in the morning, S Club 7 and Boyzone, Windows 95 and pentium II's. The millennium. Climbing around our burnt down mansion of a house, the brat-at-tat-bat of the Harley Davidson in the garage. Painting with Jean.

Norway, far too much light in the summer and only darkness in the winter, ice skating, snow, fish soup, saunas and ice cold water, summer holidays sailing around the fjords, Norway in a nutshell and the Preikestolen, the clackchunk mechanical shutter sound of my fathers Nikon F3, Lego. Underfloor heating.

One crazy year back in the UK with my mother, after renting out our family home while being away coming back to it being completely destroyed internally, living in a rented cottage while we renovated it, building Ikea furniture without any tools, listening to Dionne Warwick in the car, walks on the beach after shool with the dog.

Boarding school at eleven in Ireland, missing home, tea, toast, my first morphine at hospital, growing up fast learning to 'cop on' much too slow, baggy jeans and windows 98, pentium III's, learning to code in Microsoft BASIC, GTA 2 on friends playstation's and the Dave Matthews Band, the peril of English/Irish history not taught in Norway, or England, having my phone stolen at knife point in Limerick...

Sixth form college back in Essex at 16, art, media studies, maths, photography, physics, drums, guitar, live music at lunch-times, teenage drinking, glimmers of independence, filming biking videos with Trev, sitting exams, smoking, dial up internet and editing an Africa film for my mother. Sailing our little boat Dragoon for trips at the weekends. Sailing week with Charlie, growing up.

By the time I reached university in Liverpool, I had already worked more part time jobs than most people do in a lifetime, farm hand on the back of a potato harvester, farm hand writing business documents, farm hand painting, farm hand... cleaning out pig stys in the baking summer heat, removals man hauling furniture, 4 separate pub's kitchens and serving beer, GCSE maths support teacher, college cleaner, live-sound technician, wedding photographer, music festival area supervisor, university IT admin. At the time these were jobs so I could stand on my own feet, but each one sharpened something I still rely on today: resourcefulness, resilience, and the confidence that I can learn and do anything.

That kind of early childhood shrinks the world and erases imaginary borders. Identity not being forged by a passport but by experience. You learn quickly that there is always another way of living, another way of seeing, of being. Moving became normal; curiosity became instinct, and getting on with it became vital. My parents gave us endless experiences, we were always busy, concerts, theatre, dinner parties and meeting friends at the pub, building, moving, fixing, music, showing us the world. An unspoken, and often spoken why can't we do it? Of course you can do it. A level of ambition always 5 or 10 steps past the obviously possible.

For me university was far too much lecturing and far too little doing. I never considered not going to university, like I might do now, the learning experience was more memory than application, the architects seemed to have a better setup. They would get a project brief and have weeks to work it through from start to finish, learning as they developed - ideal. To get my fix of the real, leading up to the summer I would send out CV's contact engineering companies until anything bit, I worked first as a M&E Engineer designing heating and cooling systems for schools. Through being the Vice Chair of the IMechE institute I networked my way to a position designing and stress testing nuclear power piping and took a year out to do that. My dissertation in my final year was sponsored by that company that focused on parametric CAD modeling to automate the stress calculations of critical nuclear components. When I think back to uni it wasn't the academic experience that stands out, if it wasn't for the work experience I would have been completely unprepared for any career. I can't see a future where I could advise my own children to go to university, things move too fast, but I also worry they wouldn't get the social experience, living with friends, sports trips at the weekends, warehouse raves and 3 day long house parties, making real-big-mistakes. I don't know how that works 20 years from now and what that will look like for them.

I started my career in London later moving to Denmark then Germany, and finally now living in the Netherlands. I became an engineer because I love understanding how things work. I became a photographer because I love capturing the moment. I code because I can’t resist automating and improving whatever I can get my hands on. Somewhere along the way, I realised that these threads aren’t separate—they’re the same instinct expressed through different mediums: build, refine, learn, improve... Iterate.

My career has followed that instinct. I’ve spent years analysing structures and FEA calculations, lead large-scale engineering projects, built and lead teams of engineers across multiple continents, I've built AI systems from the ground up long before AI was common, I've combined photography, computing and engineering into machine-vision programs rolled out globally—delivering products that link old fashioned heavy industrial engineering with bleeding edge technology, My teams have won innovation awards and patents along the way.

Whether it’s machine vision, edge computing, or complex global product delivery, I’m drawn to the intersection of unknown-unknowns and possibility; where the questions need to be determined before considering the answers, the place where everything needs to be figured out tested and leant from, and ideally where someone has whispered, “I don't think it's possible.”

That challenge is what drives me.

CAREER & APPROACH
LIFE NOW

I love mind maps. I see process in everything. I'm personally messy and professionally structured. I have a terrible memory. I don’t hold rigid beliefs, but value integrity and logic deeply. I overly debate to test ideas, not to win. I chase the new, not because old things bore me, but because life feels richer when I’m on a steep learning curve, and there is so much to learn. I’m not religious, I find enough awe in the fact that the universe exists at all, that we're here, now, and that we all in this moment of time get to spend some time together, to get a brief moment to add our mark, whatever that is, to build meaningful things.

I love kitesurfing, sailing, extracting raw power from nature feeling it in your hands through the strain in a piece of rope. I’m happiest on a boat—cozy evenings, cold mornings under a warm duvet, and that unique kind of still and peace of waking up on calm water. I love trips on a yacht, escaping, where the world shrinks down to creaks of a winch, the roll of waves, the sound of the wind, the focus of the restricted space set on a endless horizon, monitoring the boat, making progress to somewhere new, taking time with the people I love. The freedom of the ocean feels like home and takes me back to my teenage years sailing with my parents to Pin Mill for the weekend.

My parents never stop evolving our childhood home, it's our base, for my brothers and sister, their kids and our families getting back together from living in our different countries is the most valuable time. From growing together as kids to now living apart focuses the the value of little time we spend together now more than ever.

And now, I have my own crew: a wonderful wife, a magical son, a beautiful baby daughter, and a black Labrador who believes she is the main character in all of this. They are the compass.

So no—I haven’t circumnavigated the globe. I haven’t built a business. But I’ve lived in many places, engineered things that matter, solved problems people thought couldn’t be solved, and created a life that feels deeply my own.

As for the future?

Let’s build something together. Or buy a boat and sail around the world.

Better yet—let’s do both.