Meet the team that makes it happen.
Team

Adam Lehde

Co-founder / Business Development Get to know Adam

Professional bio

Prior to founding Happen Technologies, Adam spent his career building mobile apps and managing software projects for national brands including Mazda, Hyundai, Anheuser-Busch, National Car Rental, and more.

A little about me

I have a passion (maybe an obsession) for improving everything I encounter. Whether this is guiding a product team to a bigger, better vision or smoking 6 racks of baby-back ribs, I look for EVERY opportunity to make it better. I love it. I have an amazing wife and two rambunctious (but wonderful) boys. Oh, and ADHD is a superpower. If you disagree, let’s talk.

Interesting fact

Hmm & Sugarfire Smokehouse once named a sandwich after me. No matter what happens in my future, THAT was my moment of fame. :)

Mykola Tarchanyn

Co-founder / Development Operations Get to know Mykola

Professional bio

Before Happen Technologies, Mykola cut his teeth in the consulting world before joining National Car Rental, where he met Adam. He then went on to find his niche in the healthcare space where he assisted multiple startups, eventually becoming a key player in building the #1 telehealth solution on the market.

A little about me

Having an applied math background, I like it when the numbers match and estimates come true. I get some jokes from the team about questioning everything, but in the end I rest knowing the pieces will fit together. I love traveling. I’ve been to 12 countries and still can’t wait to visit the next one.

Interesting fact

I’ve always been obsessed with German cars, but after almost 10 years in the US, I couldn’t resist buying myself a Mustang and supercharging it. The horsepower will never compete with my beloved Porsches, but this voice in my head quickly fades over the sound of that V8.

Andrew is a Solution Architect who believes technology is merely a tool for turning a business vision into reality. He enjoys acting as a liaison between clients’ business visions and engineering teams to ensure successful project execution. In free time, Andrii enjoys hiking and snowboarding.


Andrew

Solution Architect & Team Lead

Andrew is a Senior Full-Stack WordPress Engineer with over 12 years of experience. He believes that the admin interface of a web application should be just as user-friendly as the UX for the end user. Outside of work, Andrew enjoys raising his cat, driving a sporty convertible, and cooking delicious food.

Andrew

Full-stack dev & Team Lead

Igor is a solution architect and a wizard in a multitude of technology stacks. He leads the technical portion of many client Discovery Phases. Igor enjoys cracking jokes about “the night he took Mykola and Adam out to party.”

Igor

Solution Architect

Larysa is an experienced Business Analyst well versed in product management and discovery. She works on some of our Project-based engagements helping clients identify areas of opportunity in their future products and acts as a liaison between them and our development team to make sure all requirements are properly documented and then developed.

Larysa

Business Analyst

Khrystyna’s childhood dreams of fashion design led her to a career in UX where she designs mobile apps and web platforms for a variety of industries. Though she tries to keep it on the down-low, she actually began her technical path with a CS degree in a pursuit of a career in AI before making the switch to user experience.

Khrystyna

UI/UX Designer

Vlad manages a dedicated team for one of our St. Louis based agency clients. He is passionate about teamwork, effective communication and personal growth. In his spare time he is currently pursuing his PMP certification and some additional educational goals.

Vlad

Project Manager

Bohdan is a Full-stack Web Developer passionate about transforming concepts into functional, user-centric websites. He approaches every project as a chance to learn and evolve, crafting solutions that empower businesses, simplify workflows, and enhance everyday experiences.

Bohdan

Full-stack Web Developer

Andrew is a Senior Data Engineer who’s always happy to add new technologies to his collection (currently it consists of Python, AWS, SQL Server, Oracle, PostgreSQL and Snowflake).
This guy knows how to do some magic with your data.
He switched many countries, but decided to find permanent location to adopt a cat.

Andrew

Data Engineer

Max is an IT professional focused on business analysis and project management, with over 20 years of development experience in the past. Passionate about digging into data, understanding how things work, and helping teams turn ideas into practical solutions, he bridges the gap between business needs and technical teams. With strong analytical skills and a structured approach, Max ensures that projects move forward smoothly and stay on track.

Max

Business Analysis & Project Management

Yurii is a WordPress developer who loves coding and the thrill of building something new with every project. For him, programming never gets boring—it’s always an adventure. He is also a big fan of Formula 1 and new gadgets; if it’s fast or techy, Yurii is interested. Outside of work, he is happily married, a proud dad to a 7-year-old son, and a loyal servant to the family cat 🐱. Outside of work, I’m happily married, a dad to a 7-year-old son, and a loyal servant to our cat 🐱.

Yurii

WordPress Developer

Dmytro is a Full Stack Developer with 10+ years of experience, specializing in .NET Core, C#, Angular (1–18+), RxJS, NgRx, MSSQL, Blazor Server, and Azure microservices. He’s built large-scale platforms in real estate and healthcare, with deep experience in 3rd-party integrations and testing frameworks. He focuses on clean, scalable systems, values team collaboration, and enjoys mentoring. He is also passionate about continuous learning and clear communication. On weekends, he unplugs with guitar, nature, and English practice.

Dmytro

Full-stack dev

Ruslan is a Drupal Back-End Developer with a lifelong passion for technology—he has been on a computer since the age of five and never stopped exploring. In his free time, he enjoys a mix of active and laid-back hobbies, including skiing, billiards, table tennis, and padel tennis. Gaming has also been in his DNA since day one, making computer games another of his favorite pastimes. In my free time, I enjoy a mix of active and laid-back hobbies. I love skiing, playing billiards, table tennis, and padel tennis. I’m also into computer games—gaming has been in my DNA since day one.

Ruslan

Drupal Back-End Developer

Stepan heads up user experience and design for the innovation department at a global real estate company where he works on prototypes and early market products for new lines of business. He is a sucker for live music, quality mustache wax, and human centered design.

Stepan

Full-stack dev

Eugen is a Solution architect/Team Lead located in the Czech Republic. Has much experience in fintech and healthcare business domains. During his free time, he fully immerses himself in the world of engineering, microcontrollers, and 3D printing.

Eugen

Solution Architect & Team Lead

Oleh, is coding maestro from Lviv, Ukraine, renowned for his digital wizardry and epic beard. When he’s not strategizing in chess or ruling the table tennis court, Oleh dives deep into coding, where every line is an adventure and every project a new quest. Whether crafting digital masterpieces or conquering tech challenges, Oleh’s journey promises endless innovation and excitement in the digital realm.

Oleh

Full-stack dev

Viktor is a Senior/Lead engineer at a California based fin-tech company. In his spare time, he throws full grown men around like child’s play. ? He is a very decorated mixed martial artist and a proud military veteran. For the record, his cat has won more awards in the past year than he has…

Viktor

Backend Engineer

Andrew

Solution Architect & Team Lead

Andrew is a Solution Architect who believes technology is merely a tool for turning a business vision into reality. He enjoys acting as a liaison between clients’ business visions and engineering teams to ensure successful project execution. In free time, Andrii enjoys hiking and snowboarding.


Andrew

Full-stack dev & Team Lead

Andrew is a Senior Full-Stack WordPress Engineer with over 12 years of experience. He believes that the admin interface of a web application should be just as user-friendly as the UX for the end user. Outside of work, Andrew enjoys raising his cat, driving a sporty convertible, and cooking delicious food.

Igor

Solution Architect

Igor is a solution architect and a wizard in a multitude of technology stacks. He leads the technical portion of many client Discovery Phases. Igor enjoys cracking jokes about “the night he took Mykola and Adam out to party.”

Larysa

Business Analyst

Larysa is an experienced Business Analyst well versed in product management and discovery. She works on some of our Project-based engagements helping clients identify areas of opportunity in their future products and acts as a liaison between them and our development team to make sure all requirements are properly documented and then developed.

Khrystyna

UI/UX Designer

Khrystyna’s childhood dreams of fashion design led her to a career in UX where she designs mobile apps and web platforms for a variety of industries. Though she tries to keep it on the down-low, she actually began her technical path with a CS degree in a pursuit of a career in AI before making the switch to user experience.

Vlad

Project Manager

Vlad manages a dedicated team for one of our St. Louis based agency clients. He is passionate about teamwork, effective communication and personal growth. In his spare time he is currently pursuing his PMP certification and some additional educational goals.

Bohdan

Full-stack Web Developer

Bohdan is a Full-stack Web Developer passionate about transforming concepts into functional, user-centric websites. He approaches every project as a chance to learn and evolve, crafting solutions that empower businesses, simplify workflows, and enhance everyday experiences.

Andrew

Data Engineer

Andrew is a Senior Data Engineer who’s always happy to add new technologies to his collection (currently it consists of Python, AWS, SQL Server, Oracle, PostgreSQL and Snowflake).
This guy knows how to do some magic with your data.
He switched many countries, but decided to find permanent location to adopt a cat.

Max

Business Analysis & Project Management

Max is an IT professional focused on business analysis and project management, with over 20 years of development experience in the past. Passionate about digging into data, understanding how things work, and helping teams turn ideas into practical solutions, he bridges the gap between business needs and technical teams. With strong analytical skills and a structured approach, Max ensures that projects move forward smoothly and stay on track.

Yurii

WordPress Developer

Yurii is a WordPress developer who loves coding and the thrill of building something new with every project. For him, programming never gets boring—it’s always an adventure. He is also a big fan of Formula 1 and new gadgets; if it’s fast or techy, Yurii is interested. Outside of work, he is happily married, a proud dad to a 7-year-old son, and a loyal servant to the family cat 🐱. Outside of work, I’m happily married, a dad to a 7-year-old son, and a loyal servant to our cat 🐱.

Dmytro

Full-stack dev

Dmytro is a Full Stack Developer with 10+ years of experience, specializing in .NET Core, C#, Angular (1–18+), RxJS, NgRx, MSSQL, Blazor Server, and Azure microservices. He’s built large-scale platforms in real estate and healthcare, with deep experience in 3rd-party integrations and testing frameworks. He focuses on clean, scalable systems, values team collaboration, and enjoys mentoring. He is also passionate about continuous learning and clear communication. On weekends, he unplugs with guitar, nature, and English practice.

Ruslan

Drupal Back-End Developer

Ruslan is a Drupal Back-End Developer with a lifelong passion for technology—he has been on a computer since the age of five and never stopped exploring. In his free time, he enjoys a mix of active and laid-back hobbies, including skiing, billiards, table tennis, and padel tennis. Gaming has also been in his DNA since day one, making computer games another of his favorite pastimes. In my free time, I enjoy a mix of active and laid-back hobbies. I love skiing, playing billiards, table tennis, and padel tennis. I’m also into computer games—gaming has been in my DNA since day one.

Stepan

Full-stack dev

Stepan heads up user experience and design for the innovation department at a global real estate company where he works on prototypes and early market products for new lines of business. He is a sucker for live music, quality mustache wax, and human centered design.

Eugen

Solution Architect & Team Lead

Eugen is a Solution architect/Team Lead located in the Czech Republic. Has much experience in fintech and healthcare business domains. During his free time, he fully immerses himself in the world of engineering, microcontrollers, and 3D printing.

Oleh

Full-stack dev

Oleh, is coding maestro from Lviv, Ukraine, renowned for his digital wizardry and epic beard. When he’s not strategizing in chess or ruling the table tennis court, Oleh dives deep into coding, where every line is an adventure and every project a new quest. Whether crafting digital masterpieces or conquering tech challenges, Oleh’s journey promises endless innovation and excitement in the digital realm.

Viktor

Backend Engineer

Viktor is a Senior/Lead engineer at a California based fin-tech company. In his spare time, he throws full grown men around like child’s play. ? He is a very decorated mixed martial artist and a proud military veteran. For the record, his cat has won more awards in the past year than he has…

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