our team

Meet our team: engineers, project managers, leadership, and even a few interns!

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Nick Gluzdov


Nick Gluzdov is a seasoned web developer/UI engineer with more than 20 years in the field. Nick grew up in a family of professional artists; studied and practiced graphic design early in his career before moving his focus to user interface design and engineering. He started his web career in 1994 to help bring The St Petersburg Times (formerly, The St Petersburg Press) online. Nick is passionate about high performance, code quality and user experience. He has a versatile, cross-industry background and has delivered value to clients such as large, high-traffic web portals (over 3 BN hits/month), online retail, education, entertainment and mixed media; several years of UI engineering and tech lead experience for Comcast XFINITY and XFINITY TV web properties, delivering high performance features.

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Irina Abramson


Irina's background is in aquatic ecology and paleobiology. The life of a scientist took her from the shores of Cape Cod to a research vessel in the Sargasso Sea. Irina’s interest in information design was sparked by her experiences with creating presentation materials for scientific conferences. After making the shift to web development in 2003, Irina led a team of UI designers, copywriters, and front-end developers along with database designers and engineers in an e-commerce environment.

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Russ Zhurba


Russ focuses on UI engineering and Ruby on Rails. He holds a master's degree in Biology. After graduating he worked in research for three years, studying genetically modified organisms. Computer technology was one of his main interests ever since early school years, and eventually it became a career. For several years now, Russ' primary focus has been front-end development, while biology research remains a hobby. He likes using modern frameworks and researching solutions to difficult Javascript problems. Russ is also working on a PhD thesis in GMO.

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Andrii Demko

VP of Operations

Andrii Demko is an international, multilingual, proactive, and results-oriented entrepreneur who has founded five companies in different industries such as retail, manufacturing, advertising, and technology. While running those companies, he has developed a strong understanding of how to create an innovative product and take it to a market, how to scale companies, and how to manage talented people. Andrii received his MBA from Philadelphia University.

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Olga Michai

Account Management Lead

Olga holds a master's degree in biology and has worked as a lecturer and scientific advisor at her university's department of forestry and horticulture. She has also worked with topiary art and making living tree sculpture. Olga enjoys traveling and rock climbing; on one of her trips, she climbed to more than 16,400 feet above the sea level.

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Stas Nikitin

Practice Lead: Producer/QA

Stas Nikitin has over nine years of experience in quality assurance and over three years in management. He holds a bachelor’s degree in mathematics. For the past four years, he has been leading a QA team of five to six people, including both staff and contractors. Stas has participated in testing projects for Bayada Nurses, FULLHAUS, GSW Worldwide, Jason Hewitt, Newdea, PMI, Ramada, Reliable Reports, SunGard, and Tire Kingdom. He devotes his free time to photography, traveling and hiking. He has also played in checker tournaments, and holds the title of a master in the game.

Front Row Agile Badge

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Ivan Osadchy

Ruby on Rails Practice Lead

Ivan is fascinated by the rapid progress of web technologies. He holds a bachelor’s degree in computer science, and his focus is on back-end development that requires abstract thinking skills. Ivan has worked in the web development industry since 2005, and has learned a number of technologies. His primary workhorse is Ruby on Rails, and he is highly proficient in document-oriented databases such as MongoDB. His hobbies include backpacking and traveling to obscure places off the beaten path.

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Jason Young

Java Practice Lead

As a software architect with twenty years of software engineering experience, Jason Young has excelled at a variety of projects: from modeling and simulation of space systems at Lockheed Martin to web analytics for Toys”R”Us, and to the award-winning iPaaS (Integration Platform as a Service) offered by Dell. With this level of expertise, Jason has the breadth and depth of knowledge necessary for the design, implementation, and delivery of comprehensive and scalable SaaS solutions.

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Irina Melnik

Solutions Manager Lead

Irina is a passionate learner. She studied Philology and English Literature in two universities simultaneously, and augmented her education with courses in General Records Management and Staff Records Management. Her communications and effective problem solving helped her grow from Content Manager to Communications Manager and then Project Manager. Irina is always expanding her skills in quality assurance and business development. She is also a big fan of Sci-Fi literature and alternative rock music, and likes to visit festivals and conventions.

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K Pastor

Middleware and Back-End Lead

Pastor's first name is Konstantin, but no one calls him that around here. He has been working as a technical and team leader for the last several years, leading both front-end and server-side engineering. Holding a dual degree in mathematics and computer science, Pastor has been in the web industry since 2006 and has plenty of experience in developing large web applications such as CRMs, as well as tools for business and sales. He particularly enjoys working on architecture and structure. When not working, Konstantin likes to spend time playing with his two young children: a daughter and a son.

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Jaro Shell

Solutions Engineer

Jaro started working as a PHP and front-end developer while studying engineering and applied Science at the National Academy of Environmental Protection. He has been with us since 2011 and quickly became a leader who is responsible for most of the front-end development that our team delivers. In his free time Jaro enjoys cycling and weight lifting.

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Anri Bolon

Software Engineer

Anri grew up in a family of mathematicians and familiarized himself closely with computers and programming from an early age. For Anri, modern front-end frameworks are not only his tools of the trade, but also an abiding interest. He is interested in everything related to JavaScript, especially Node.js. Anri holds a degree in economics and is experienced with e-commerce and with increasing sales. In his spare time, Anri enjoys traveling with his wife, listening to music, and playing guitar.

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Vlad Korn

QA Engineer

Vlad has been with the company since March 2015 as a QA engineer. He comes from the game industry quality assurance background and his last position was at Arkadium, where he tested games for Windows 8, 8.1 and 10. He also has experience with testing mobile games and applications. Vlad graduated from the National Academy of Environmental Protection and holds a degree in computer science for economics. When not testing applications, Vlad enjoys cycling, weight lifting, and spearfishing.

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Dmitry Kravchenko

DevOps Engineer

Dmitry has more than six years of experience as a systems administrator. His previous job was with a large hosting provider. Dmitry is interested in high-loaded systems and new technologies. He likes to travel and to discover new places and activities.

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Ivan Smalzer


Ivan was one of the first members to join our team. He is currently working on a master's degree in mathematics and computer science. Ivan likes working on discovering new methods of spam detection, and he dedicates himself to improving his web development and network security skills. He is also interested in the science and engineering of making intelligent machines. Ivan enjoys science fiction literature and online role-playing games.

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Lena Pallna

Producer, Business Analyst, QA Engineer

Before diving into quality assurance engineering a few years ago, Lena worked in telecommunications as a program manager and a database administrator. She is a mom, and she likes traveling to music festivals, snowboarding, and playing games such as Go and backgammon.

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Max Tor

UI Engineer

Max initially ventured into a variety of web development and e-commerce directions, and finally chose to focus on UI engineering. He holds certificates in web design, e-commerce, database development, and web layout. He earned his degree in engineering and applied science and management from the environmental protection department of his university, where he was on a merit scholarship. Max enjoys photography and traveling. He also loves extreme sports such as kitesurfing and snowboarding.

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Natalie Poda

QA Lead

Natalie started her career in tech support and eventually advanced into quality assurance engineering. She holds a master's degree in mathematics and computer science, and her master’s studies were fully funded with a fellowship. She is driven to learn new skills. Not only has Natalie a graduate degree in music, but she also earned a second master's in foreign languages. She still plays the piano whenever she has time.

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Peter Sirotinsky

Mobile and CMS Engineer

Peter has over seven years of software engineering experience and a degree in engineering and computer science. He has been working as a mobile (native iOS and hybrid) engineer, as well as a CMS engineer. In his spare time Peter studies system programming and enjoys hiking.

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Business Analyst

Regina’s love for traveling inspired her to get a master's degree in linguistics. To become an an efficient business analyst and quality assurance professional, she got certified in business management and web design. Regina has experience in economics, retail solutions, and e-commerce. She spends her free time practicing aikido

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Sasha Hariton

Software Engineer

Sasha's focuses are primarily Ruby on Rails and content management systems. Web development is not a job but a passion for him. Sasha became interested in web-based technologies while he was a college student, and now, in his spare time, he improves his skills in Ruby on Rails, his primary area of expertise. Sasha enjoys soccer, which he has played since he was a child.

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Evelina Becker

QA Engineer

Evelina was inspired to start her quality assurance career by her sister Elvira. She holds a bachelor's degree in industrial and civil construction engineering. Evelina has won regional women's and youth chess tournaments for several years in a row. She also enjoys yoga.

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Helen Shostak

Software Engineer

Helen is a fourth-year computer science student in the department of applied mathematics. She enjoys camping and learning new languages, both human and computer.

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Vas Jaremchuk

Drupal Practice Lead

Vasily graduated from the Moscow Institute of Physics and Technology with a PhD in fluid dynamics and spent six years as scientist at the Institute for Mechanical Engineering Problems, specializing in the computer modulation of convection. While at school, he started experimenting with web programming and released his first project, a simple web store written in Perl, in 2001. During his early freelancing years, he worked with a multitude of technologies, but ended up focusing in Drupal for the past 8 years and becoming a contributor in Drupal community. Vasily has two daughters, and enjoys cycling and rollerblading with his older child.

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Tim Chudin

Full Stack Software Engineer

Tim has been working for Speed & Function since 2011. He is a charismatic individual with a unique sense of humor and is appreciated by both the team and our clients. Tim graduated with a degree in computer science and networking. This was a clear choice for him, since technology has been his passion from a young age. Tim started experimenting with coding in middle school and began coding professionally when a friend invited him to help out on a project in 2007. Tim excels at UI engineering and Node.js and plans to build more iOS apps in the near future. In addition to software engineering, Tim is interested in radio electronics. He also likes to play tabletop games and with his PlayStation, and to ride his Cannondale Trail SL4 mountain bike.

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Dron Pane

Software Engineer (Java)

Dron has been doing software engineering since 2011. His work focuses on Java, object-oriented programming, design patterns and algorithms, and the Android NDK toolset. Dron holds a bachelor’s degree in computer science. He enjoys playing soccer and snowboarding in his free time.

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Val Rudi

Software Engineer and Tech Lead (Java)

Val is a full-stack software engineer and tech lead with a focus in Java and OSX desktop applications. He holds a master's degree in math and computer science. Val has a great sense of humor; he says he likes watching fitness videos on YouTube while eating fast food.

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Refat Amet

Software Engineer

Everyone likes Refat!

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Alister Ignatius

JS engineer

Alister graduated from the National Aerospace University in 2015 with a degree in system analysis. He focused on mathematics and data processing in his studies, and it was there that he started programming in C# and C++. Alister later returned to his alma mater to run a computer science lab. He joined Speed and Function as an intern software engineer and focuses on JavaScript.

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Vadim Jin

Drupal Engineer

Vadim is a Drupal developer. He has a degree in mathematics and computer science. Vadim began his career as a system administrator, but has focused on Drupal development since 2013. In his free time Vadim enjoys ambrotype photography and sports. Snowboarding is his favorite.

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Mitch Zamsky

Senior Software Engineer

Mitch is a software developer with a wide range of knowledge. He constantly works on expanding his tech stack with new technologies. Mitch led a team of Smalltalk developers in the early 2000s, and this prodigious experience helps him easily dig into modern object-oriented and functional programming paradigms and frameworks. Mitch recharges himself with sport activities such as trail running and orienteering.

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Maria Koronidi


In her early career, Maria focused on linguistics. She started by studying Greek and, discovering her passion for languages, later switched to teaching English. Maria quickly became a lead manager in a variety of educational settings. With over three years of experience in management, she took on a challenge to master the Agile methodology in software engineering. Her hobbies include reading and painting, and they help her unwind after a busy day. She also likes cycling and hiking with friends. Maria’s motto is, “Do what you love and love what you do”— it perfectly describes her attitude toward life and career.

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Lucy Galitsky


Lucy comes from a finance background: she was an IFRS Accountant for twelve years helping fintech companies. While on maternity leave, Lucy enrolled in a QA engineering training and got inspired to move over to delivery side. She eventually took on a career change and picked up project management. Lucy graduated with honors and holds a master's degree in International Economic Relations. She loves her daughter, traveling, sport orienteering, nature hikes and working with numbers.

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Julia Poda

Software Enginner

Julia has a dual master’s degree in mathematics and computer science. She also graduated from a music school where she studied the piano for seven years.

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Ellen Svejin

QA Engineer

While studying psychology in college, Ellen had an opportunity to do a quality assurance engineering internship where her uncle worked back in 2009. The thrill of the startup world lead Ellen to learn a variety software development roles, she even had a stint as a project manager. This year, Ellen is diving deeper into automated testing.

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Alla Lifschitz

QA Engineer

After doing a student exchange program in Heidelberg University, Germany, Alla was inspired to dive into technology. She has been actively involved in a broad range of projects and got a chance to experience many challenges in the area of quality assurance. When Alla has free time, she enjoys reading books, baking cookies, hanging out with her pug, and travelling. Her dream travel destination is Machu Picchu.

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Anna Bondar

QA Engineer

Anna grew up in the family of computer science teachers who cultivated her love for math and engineering since her early childhood. She graduated with a dual master’s degree in Information Science and Management and dived right into quality assurance. With ten years of experience in QA engineering, Anna often takes on a lead role and coaches younger colleagues. She is a wife and a mother who enjoys dancing, painting and hiking.

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Inna Mis

Producer / Scrum Master

Inna has a bachelor’s degree in computer science and had been working as a UI Engineer before joining Speed and Function as a project manager. She likes fitness and traveling.

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Aliona Opalinsky

QA Engineer

Aliona joined Speed and Function after graduating the local American College where she studied English and German. She likes cooking sweets and baking - not because she likes sweets but to surprise beloved ones.

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Lex Pysar

Producer / Scrum Master

Lex joined the team in 2016. He has a bachelor’s degree in Arabic philology and taught Arabic to one of S&F employees. When the company needed a new project manager intern, Lex was persuaded to apply. He was hired, and his communication skills and passion for IT are much appreciated. In his free time, Lex writes short stories.

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David Sonne

Product Owner

David studied computer science and mathematics in college, then moved to Himalayan China as a missionary for 10 years. During that time he got an MBA in international economic development, and became involved in funding development projects. He traveled all over China, and spent a lot of time in villages, farms, factories, and government offices, getting to know the local people, NGOs, and how things work in China. He later founded a consulting company and started funding and running development projects directly, the major focus being water projects, animal husbandry, and scholarships. He also founded an agricultural development company, and started three farms, growing a near-extinct kind of herb organically. He moved back to the US in 2010 for some real estate investments, building two 3-story houses by hand, which are now providing rental income. During his time in Philadelphia, he started a permaculture fruit-forest covering several vacant lots. He is block captain, and also head of the Tree Tenders for North Philadelphia. In his spare time, he started building a 3D parallel-dimension turn-based strategy war game from scratch, and soon started using games to teach programming. He started working with S&F in 2016 as a product owner for several projects. In his spare time, he enjoys hiking, motorcycle riding, and gardening.

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Alex Ost

Drupal Engineer

Alex comes from an academic background: he was working on a PhD in genetics and taught college-level anatomy classes. He also supported his college studies with a job at maritime agency. Shortly after college, Alex discovered a passion for software engineering and Ruby on Rails.

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Alex Rabcevich

Software Engineer

Alex developed a passion for software engineering through his good friend Val, who'd had over ten years of experience by that time and specialized in Java. He demonstrated impressive progress and was quickly hired to work full-time. Alex focuses on server-side technology. In addition to Java, he has built solutions using Node.js. Alex has also worked for commercial airlines. In the future, he is planning to get a personal pilot license and start flying as a hobby.

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Vad Merzlikin

java developer

Vadim is a Java architect with 10 years of experience in delivering complex software solutions for transportation, health care, retail and even government. He was fascinated with engineering and computers as long as he can remember himself. He is a hard rock fan and for awhile was a lead guitarist and audio engineer of the local band. He dreams of a beach house and building his own electric car.

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Fatima Aboul-Seoud

Executive Assistant

Fatima Aboul-Seoud has a Master’s degree in Psychology (with a focus on experimental computational evolutionary psychology) and is working on her PhD at the University of Pennsylvania. She has managed several research grants in psychology, including one for the United States Air Force and one for the John Templeton Foundation. She has co-authored a textbook chapter and a published research article in her field, with more in progress. Her experience ranges from data analysis and budget planning to training and managing researchers and educating undergraduates. She has conducted research on the function of forgiveness, revenge, empathy, friendship, and morality.

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Tom Guidotti


* Former team member

Tom's diverse background includes a master's degree in industrial and organizational psychology, as well as two profitable start-up businesses. He uses his expertise in business management and interpersonal skills to help S&F maintain a focus on its clients. In graduate school Tom studied company culture development, and he has helped shape the culture within S&F. In his spare time he enjoys playing drums and building structures out of Legos.

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Spencer Varadi


* Former team member

Spence spends his days making people’s innovative ideas profitable. For him, no day is better spent than whiteboarding cutting edge software that enhances a company's effectiveness or users' experiences. He is an active networker and strives to make connections that bring businesses to the next level. Outside daily operations, Spence participates in machine learning competitions and archery.