From startups to global scaleups – we create, craft and scale custom digital products
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100+ We’re a team of 100+ developers, designers, and tech leads — ready to turn complex ideas into scalable digital solutions.
4.7/5 Our clients give us a 4.7/5 on Clutch — praising our quality, communication, and proactive approach.
4.5 Our clients choose to stay with us for years, building lasting partnerships founded on trust and shared success.
2005 Since 2005, we’ve been crafting custom software for clients around the globe — proudly headquartered in Poland.
Crafting custom LMS solutions with the right mix of technology, design, and strategy.
We’ve spent almost 20 years helping clients turn ideas into scalable products. From web and mobile applications to complex SaaS platforms and LMS solutions our expertise lies in creating solutions that stand the test of time and market change.
Scale your capabilities with skilled developers, designers, and EdTech leads who integrate seamlessly with your in-house team.
From concept validation to market-ready software, we handle the entire process — combining strategic guidance with hands-on execution.
Quickly turn ideas into clickable prototypes — perfect for user testing, investor pitches, and product demos.
No risk. Just results. Get a feel for our process, speed, and quality — work with our developers for a trial sprint and see why global companies choose Selleo.
We design and implement tailored AI solutions that boost efficiency, improve decision-making, and enhance customer engagement. Whether you’re building a new platform or scaling an existing one, our AI expertise helps you innovate with confidence.
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Great software is more than code – it’s the experience.
Our designers craft intuitive, user-friendly interfaces that help your product stand out, boost engagement and win your users’ trust.
We start by exploring user needs, pain points, and market context through interviews, surveys, and analytics. This ensures every design decision is grounded in real insights.
Creating clear, low-fidelity screen layouts that map out the structure, navigation, and functionality before investing in visuals.
Interactive prototypes allow us to simulate real user flows, test ideas early, and refine based on feedback before development begins.
Delivering polished, visually engaging interfaces that match your brand and delight your users, while keeping usability at the core.
Observing how users interact with prototypes or finished designs to identify barriers and optimize for clarity, efficiency, and engagement.
We design inclusively, following WCAG guidelines to make products accessible to people with diverse abilities, ensuring no one is left out.
From MVPs to full-scale platforms – our product teams design, build and grow software that makes an impact.
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Global VCs trust products we helped bring to life.
We help founders design and develop strong MVPs and prototypes that win investor attention. Our clients secured funding from top global and European VC firms – turning product visions into investable ventures.
A ready-to-use LMS designed to onboard, upskill, and engage your people — tailored to your business needs. It combines learning,
AI-driven mentoring, and seamless integrations to help organizations accelerate growth. Scalable, efficient, and human-centered, it turns corporate learning into a real business advantage.
We collaborate with clients and partners around the world to deliver impactful digital products. Check the map and see where we’re already making a difference.
We pair coding craftsmanship with agile expertise and client trust — backed by real certifications and awards.
Awarded Forbes Diamonds 2025 for consistent growth and business excellence.
Clutch awards highlight our proven track record in delivering value and building strong client partnerships.
Our team holds key certifications in software testing and cloud architecture to guarantee reliability and performance.
Scrum-certified professionals ensure structured yet flexible processes tailored to product growth and team dynamics.
We help education and SaaS platforms unlock AI potential — from personalized learning engines that adapt to 50k+ students, to AI-powered chatbots and conversational assistants that scale support.
Join us on YouTube for weekly insights on AI, SaaS, and digital transformation — designed for founders, CTOs, and product leaders ready to scale smarter.
This article offers a practical, founder friendly framework that helps you evaluate when to build, when to buy, and how to combine both approaches to support long term scalability.
Discover the features and benefits of Netlify, a powerful platform for web development. Learn how it can streamline your workflow and enhance your projects.
This article explores how AI in SaaS is reshaping revenue models, accelerating product innovation, elevating customer experiences, and enabling companies to operate with unprecedented efficiency.
Discover exceptional UX design examples that boost user engagement. Learn practical insights to enhance your digital experiences. Read more now!
The key is clarity. Well defined stages, async collaboration and a repeatable validation loop.
From custom LMS platforms to learning portals and competency-based systems — we help HR and L&D teams build scalable digital learning experiences.
See our work Whether you're shaping a new MVP or scaling an existing product, we blend product strategy, thoughtful design, and strong engineering to help you build with confidence, speed, and clarity.
See our work From startups to global scaleups, we design, engineer, and scale reliable digital products built on clean architecture, robust infrastructure, and long-term maintainability.
See our work 100+ We’re a team of 100+ developers, designers, and tech leads — ready to turn complex ideas into scalable digital solutions.
4.7/5 Our clients give us a 4.7/5 on Clutch — praising our quality, communication, and proactive approach.
4.5 Our clients choose to stay with us for years, building lasting partnerships founded on trust and shared success.
2005 Since 2005, we’ve been crafting custom software for clients around the globe — proudly headquartered in Poland.
Crafting LMS and e-learning solutions that help HR teams scale development, accelerate onboarding, and improve performance at every level.
For nearly 20 years, we’ve been helping organizations turn learning initiatives into measurable business outcomes. From custom LMS platforms to development portals and competency-based training systems, we build solutions that boost engagement, reduce training costs, and stand the test of time.
Grow with a Custom LMS Designed for HR and L&D.
Our LMS is built for HR teams that need to centralize learning, eliminate manual processes, and ensure consistent, up-to-date training across departments and locations.
From digital onboarding to automated compliance reminders and skill-tracking dashboards, everything works together to free your team’s time
We’ll design the learning solution that solves it.
We build LMS and HR technology that fits your organization. Share what you’re working on, and we’ll help you move faster, automate more, and deliver learning that truly works.
Explore conversations on AI-powered learning, adaptive training systems, next-generation LMS platforms, and the latest trends in corporate learning. Designed for HR and L&D leaders driving digital transformation.
We integrate AI into your LMS and HR tools to automate onboarding, personalize learning paths, and free your team from repetitive, manual work. From AI-driven assessments to employee skill insights, our solutions help HR make faster, smarter decisions with measurable impact.
Discover AI for HR & L&D For two decades, we’ve been transforming early-stage concepts into stable, scalable platforms built to last.
We blend product thinking, clear processes, and strong engineering to help founders validate ideas quickly, while giving project managers the transparency, communication, and predictability needed to deliver without chaos.
Scale your capacity with experienced developers, designers, and product specialists who integrate smoothly with your workflow. Founders get momentum, PMs get reliable, organised delivery that reduces stress instead of adding more.
From discovery and scoping to design, development, testing, and launch, we handle the entire product cycle. Founders gain a partner who moves fast and adapts quickly. PMs get structure, transparency, and predictable execution every step of the way.
Turn your idea into a clear, testable prototype, perfect for validating assumptions, user testing, or securing early support. Founders get clarity and speed; PMs get well-defined scope and smoother planning for what comes next.
No risk. Just results. Test how our team works with your process, roadmap, and product vision.Founders can validate momentum and product value early, while PMs get transparency, structure, and confidence that deadlines stay on track.
We collaborate with founders who need speed and PMs who need control, blending product thinking, thoughtful design, and dependable engineering.
Start a conversation, and let’s shape a product that grows with your business.
We help founders and project managers add AI features that improve the product, accelerate workflows, and create real user value. From early prototypes to full-scale implementations, we ensure smooth delivery, clear process, and measurable outcomes that move your roadmap forward.
Discover AI for HR & L&DCrafting high-performance software solutions with the right mix of architecture, engineering, and strategy.
For nearly 20 years, we’ve been helping CTOs transform complex ideas into robust systems. From cloud-native platforms to enterprise integrations and distributed architectures, our expertise lies in delivering solutions engineered to scale, operate reliably, and evolve with your technology roadmap.
We design and implement production-ready AI systems that enhance performance, automate workflows, and integrate seamlessly with your existing infrastructure. From model deployment and vector databases to MLOps pipelines, monitoring, and cost optimization, our AI engineering expertise helps CTOs innovate with confidence.
Discover AI for HR & L&DScale your engineering capacity with experienced backend, frontend, DevOps, QA, data, and AI specialists who integrate seamlessly with your in-house team, aligned with your tech stack, workflows, and delivery standards.
From architecture design and technical discovery to development, testing, DevOps, and observability, we handle the entire engineering lifecycle. We combine strategic technical leadership with hands-on execution to build robust, secure, and maintainable systems.
Quickly turn concepts into functional prototypes designed for technical feasibility checks, architecture validation, user testing, and stakeholder alignment. Ideal for de-risking decisions before committing to full-scale development.
No contracts, no commitments, just real engineering work.Evaluate our developers’ code quality, communication, architectural thinking, and delivery speed during a trial sprint. Use the 2-week trial before making any decisions.
We help technology teams design and deliver scalable, secure, and well-engineered systems.
Whether you're modernizing legacy infrastructure, extending your platform, integrating new services, or preparing for scale, we partner with CTOs to build solutions that perform reliably and evolve with your roadmap.
