About Aristek
Systems that hold. Engineering that works.
We help human-focused companies turn AI and advanced technologies into reliable systems — designed, integrated, and governed by experienced engineers.
years of engineering
experience
years of AI expertise
specialists
clients stayed for
5+ years
based
Our history
Aristek’s founders started working together as software developers. Active cooperation with our to-be EdTech partners in the US began.
Aristek was founded in Eastern Europe. Projects with new technologies and industries were launched, and the number of employees reached 100.
Aristek entered the Gulf region and signed their first contracts there. This enabled us to establish a stronger presence in the region.
Aristek moved the headquarters to Vilnius, Lithuania. We are an EU-based company now.
Aristek launched an AI-focused R&D to validate hypotheses, test new AI capabilities, and assess how they integrate into real workflows efficiently.
Aristek introduced AI into key stages of the software development lifecycle, with security, review, and engineering accountability built into the process.
Our approach to building reliable systems
Engineering approach
- Solution first, stack second
- Alternatives explored before key decisions
- Architecture adapted when reality changes
- Trade-offs made visible, not hidden
- Proven methods used where reliability matters
AI-enhanced development
- AI used across the workflow
- Every output validated by engineers
- Security and control stay with the people
- Faster delivery without trading away reliability
Human-focused outcomes
- Systems that work, scale, and stand the test of time
- Projects where reliable tech supports meaningful human work
- Engineering as a way to help companies elevate experiences
Engineering approach
- Solution first, stack second
- Alternatives explored before key decisions
- Architecture adapted when reality changes
- Trade-offs made visible, not hidden
- Proven methods used where reliability matters
AI-enhanced development
- AI used across the workflow
- Every output validated by engineers
- Security and control stay with the people
- Faster delivery without trading away reliability
Human-focused outcomes
- Systems that work, scale, and stand the test of time
- Projects where reliable tech supports meaningful human work
- Engineering as a way to help companies elevate experiences
How we use AI in development
AI is a great productivity amplifier, that’s why we’ve integrated it into our development workflows. A structured approach is key — AI is a part of SDLC, but with clear rules for usage, review, and accountability.
Developer-in-the-loop model
AI supports, engineers decide
Built-in control
security, data, and code stay protected
Cost governance
usage is visible and controlled
Risk management
AI operates within defined boundaries
Full transparency
clients know where AI is used
Our leadership team
Years of practice make developers industry experts. That’s why we strive for long-term commitment. And our leaders combine outstanding expertise with strategic acumen to produce substantial results and ensure the sustainable development of the company.
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Sergey Tolkachev
Co-Founder & CEO at Aristek SystemsSergey is a founder of Aristek. He makes major corporate decisions, manages overall operations, and sets the strategic direction of the company.
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Aleksei Turchak
Co-Founder & CTO at Aristek SystemsAleksei is a founder of Aristek. He makes strategic tech decisions, introduces new technologies to the company, and oversees major projects.
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Ruslan Makarsky
Co-Founder & CCO at Aristek SystemsRuslan is a founder of Aristek. He oversees all customer communications, and showcases Aristek Systems at public events. Ruslan also leads key projects as the delivery manager.
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Vadim Dyvlyash
Vice President of GrowthVadim coordinates and leads our communications teams: sales, account management, and business development. Vadim managed service delivery for companies with +15,000 employees on board.
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Marina Leontieva
Head of MarketingMarina creates Aristek’s marketing strategy and ensures its implementation. Having excellent leadership skills, she supervises the marketing team and works with other departments to guarantee alignment and consistency in branding and messaging across all channels.
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Vitali Voevodov
Head of Projects and Client SuccessVitaly is in charge of project execution. He manages company resources, develops project best practices, and oversees the presale workflow. Vitaly has 14 years of IT experience.
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Siarhei Buividovich
Head of BackendWith 11 years at Aristek Systems, Siarhei manages Backend department and oversees the development of robust and scalable software solutions. He is dedicated to ensuring that projects are delivered on time and meet the highest quality standards.
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Dzmitry Koshaleu
Head of Frontend & DSDzmitry leads our Frontend & DS department. Having vast experience, he’s been in charge of Frontend and system design on major US, European, and other international projects. In the past, he also trained hundreds of software engineers for jobs at major corporations, including Google, Amazon, and Spotify.
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Anton Chachin
Head of HRAnton makes Aristek a great place to work. He builds our HR brand, so we can hire top employees. Anton develops our HR policies and leads the HR department.
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Ivan Kharetsky
Head of QAIvan ensures smooth QA in Aristek. He hires QA engineers, allocates them to projects and helps them grow professionally. He also consults QA engineers on major projects, and upholds our ISO 9000 certification.
Our development team
Aristek employs top talent from Central and Eastern Europe. We hire experts with unique industry experience and let them thrive. We believe that healthy corporate culture fosters quality software.
| 95% | employees have BS, MSc, or PhD degrees |
| 88% | Senior-Middle tier developers |
| 87% | employees have been working with us for 5+ years |
| 100% | delivery teams effectively use AI agents for daily tasks speed |
Certified quality
Aristek Systems builds stable and secure software certified by international standards. That’s how we got our 5 star ratings on Clutch.
Confirmed by external audits
- Regular code reviews
- Static and dynamic analysis
- Seamless integration
Regular competence development
- Trainings, courses, and a corporate library
- Best-practice sharing and educational seminars
- AI- and DS-focused R&D department
Industries we help
Education
You foster skills — we help you deliver measurable impact. Make EdTech platforms true learning ecosystems with governed AI, LMS integrations, standards compliance, and secure student data.
Healthcare and Veterinary
You save lives — we support you with governed AI systems and software, which work like clockwork, meet compliance requirements, and support human-in-the-loop workflows.
Logistics and SCM
You keep the world running — we make your operations breeze. Our solutions work under real-world constraints: latency, scale, and data complexity.
Legal
You bring justice — we understand the responsibility, and engineer systems, where every output is attributable, auditable, and accountable.
Manufacturing
You run the line — we build AI systems that don’t drift, break, or guess. Every decision is traceable, every output measurable, and every failure recoverable.
Other industries
Across industries, the same principles apply: security, privacy, compliance, and accessibility.
What our clients say about us
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Dr John Vandewalle
CEO of Lumen Touch, Kansas City, USAThe most amazing thing about our partnership is that in many situations we don’t have the time to map out product specifications and requirements and yet the final product almost always exceeds our expectations. This has been very inspirational for our team and continues to make our partnership even more meaningful.
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John Sims
CTO, STEMscopes by Accelerate LearningI had the privilege of working with Ruslan and his team at Aristek for the past three years. It is hard to find that level of dedication in an offshore vendor/partner but Ruslan and the Aristek team deliver it. I would highly recommend Ruslan and Aristek to anyone needing an expert level partner in EdTech and SaaS platform development.
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Don Keeler
Former CTO, Accelerate Learning Inc., USAAristek Systems is an integrated resource within our organization structure to provide all involved in the process with optimum use of their time. Our collaboration resulted in approximately a 45% market share the first year within the only state the product was released. Today we are in all 50 states offering customized solutions, customer service and marketing services.
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Account Manager
Software Development Company, Warsaw, PolandWe’ve hired the Aristek Systems’ team to build a web-based application from scratch using .NET and React. They have been efficient and flexible, ensuring an effective workflow. Their positive attitude, personable approach, and genuine interest in the client’s success have been hallmarks of their work. As a result, they have contributed to enhancing our velocity by approximately 20-30%.
We’ve hired the Aristek Systems’ team to build a web-based application from scratch using .NET and React. They have been efficient and flexible, ensuring an effective workflow. Their positive attitude, personable approach, and genuine interest in the client’s success have been hallmarks of their work. As a result, they have contributed to enhancing our velocity by approximately 20-30%.
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Executive
Healthcare Company, Buena Vista, ColoradoOur objective was to construct, enhance, and sustain a platform featuring survey and data visualization capabilities. As a provider of customer care services for dental clinics, we aimed to find a vendor good at both software development services and HIPAA compliance expertise. We`ve chosen the Aristek Systems` team and now are much delighted with their work; they’ve delivered a platform with great uptimes and take care of any issue that arises.
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Lead Project Manager
Telematics Software Company, Huntington Beach, CaliforniaAristek Systems has augmented our telematics software company with front- and backend developers to support and keep our product updated. Up to this point, Aristek Systems has effectively assisted us in attaining our objectives and capably managed various tasks. The team has significantly optimized workflow efficiency and communication. Furthermore, they exhibit a keen awareness of business challenges and offer pragmatic solutions.
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Product Design Manager
Education Company, United KingdomWe hired Aristek Systems to redesign the UI/UX of our educational platform. They went on developing the new features as well. The result: a much better learning experience for our users. The team delivered the project on time, and the communication was excellent, they were always available. We loved Aristek’s work culture.
Corporate responsibilities
Consistent values guide our day-to-day actions and major decisions. Integrity forms the cornerstone of our work.
Mentorship & initiative support
We help talented graduates jumpstart their careers through Aristek Lab. The best interns get a job opportunity. New employees are guided by experienced mentors.
Corporate giving
We try to give back to the community. We hold charity events, donate to hospices and animal shelters. Together, we can build a more compassionate world.
Ongoing education
To create first-class software, we support the professional development of employees. We have a corporate library, cover professional courses, and hold events with external experts.
Equal opportunity
We are an international company, with offices in Europe, the USA, and the Middle East. That’s why we welcome employees regardless of their cultural background.