High-performance AI & software engineered, step by step.
We build serious AI products, custom software, and dedicated engineering teams for EU and US scale-ups — anchored by a transparent delivery method and 10+ years of nearshore experience.
Trusted by teams shipping at scale
An AI-first
software house.
StepTo is a software engineering company founded in Belgrade in 2014. We build serious software — production AI systems, custom platforms, and dedicated engineering teams — for European and North American clients.
Our focus has shifted firmly toward artificial intelligence and high-performance software: LLM integration, RAG pipelines, agentic workflows, and custom ML models. Outstaffing and outsourcing are part of how we deliver, not the headline.
Every engagement runs on the same governance model — transparent milestones, weekly demos, and full IP ownership for the client. One company, one method, one standard of delivery.
From AI architecture to engineering teams that ship.
StepTo delivers AI and software engineering through five proven models: embedded teams (used in 40+ engagements), augmented squads (60+ projects), full project ownership (150+ completed builds), dedicated teams (50+ long-term partnerships), and staff augmentation (200+ individual placements). All models leverage our SBS methodology, achieving 98% on-time delivery.
AI & High-Performance Software
End-to-end AI solutions — from feasibility and proof-of-concept through production hardening. We architect LLM integrations, retrieval-augmented systems, agent workflows, and custom ML models that ship to real users, on real infrastructure. Delivered 40+ AI projects with 99.5% uptime and average 3-month time-to-production.
- LLM & agentic workflow integration
- Retrieval-augmented generation (RAG)
- Custom ML model training & serving
- Vector databases & semantic search
- Intelligent process automation
- NLP, computer vision, document AI
Custom Software Development
Bespoke web, mobile, and enterprise platforms built around your business — TypeScript, React, Next.js, Node.js, Python — from MVP to production scale. Built 80+ custom applications serving 2M+ users with average 99.9% uptime.
- Full-stack web & mobile
- SaaS & multi-tenant platforms
- Cloud-native architecture
- API design & integration
Dedicated Development Teams
Cross-functional teams — engineers, designers, QA — that work exclusively for you. Stability of in-house, flexibility of nearshore. Assembled 50+ dedicated teams averaging 8 engineers each, with 95% retention and 2-week ramp-up time.
- Custom-assembled to your stack
- Risk-free trial period
- Full-time exclusive engagement
- Long-term partnership model
Outstaffing & Augmentation
Embed senior Serbian engineers directly into your team. You manage the work, we handle payroll, HR, and compliance. Augmented 200+ teams with individual engineers or squads, scaling from 1 to 50+ developers monthly.
- Direct, day-to-day control
- Scale up or down monthly
- From single specialist to squads
- Native English communication
Software Outsourcing
End-to-end project delivery — discovery, build, test, deploy. Predictable milestones, transparent pricing, full IP handover. Completed 150+ outsourcing projects averaging 6-month delivery with 98% on-time completion and full client IP ownership.
- Five-stage delivery model
- Two-week agile sprints
- Weekly client demos
- Post-launch support contracts
Step by Step. By design.
Our proprietary five-stage delivery model. Every milestone has acceptance criteria and a client sign-off gate before the next stage begins. Predictable, reviewable, low-risk.
Serious engineering, calibrated to ship.
Tried outsourcing before? We built SBS to fix exactly what went wrong. Below are the reasons our clients stay — most of them, for years.
- 10+ years of engineering depthStrong technical leadership across full-stack, cloud, mobile, and AI disciplines.
- AI as a core competencyProduction LLM, RAG and agent systems — not slideware. Feasibility-first engineering.
- CET timezone, native EnglishFull business-hour overlap with EU; 4h overlap with US East Coast.
- Transparent governanceSBS milestones, weekly demos, full IP ownership, no long-term lock-in.
Modern, opinionated, production-grade.
Our AI/ML stack centers on production-grade tools: OpenAI and Anthropic for LLM integration, LangChain and LlamaIndex for orchestration, PyTorch and TensorFlow for custom model training, and pgvector/Pinecone for vector databases. This combination powers 40+ AI projects with 99.5% uptime.
We use strongly typed languages for scalable applications: TypeScript for full-stack development, Python for AI and backend, Go for high-performance services, Java for enterprise systems, and C# for .NET applications. 100+ engineers proficient across all.
Modern frontend frameworks for responsive UIs: React and Next.js for component-based development, Angular for enterprise apps, Vue for lightweight projects, and Tailwind for utility-first styling. Delivers 85+ web applications with optimal performance.
Scalable backend technologies: Node.js for JavaScript ecosystems, FastAPI for Python APIs, Spring for Java enterprise, GraphQL for efficient data fetching, and REST for standard web services. Handles 10M+ API requests daily across projects.
Robust data infrastructure: PostgreSQL for relational data, MongoDB for documents, Redis for caching, and Kafka for streaming. Manages petabyte-scale data with sub-millisecond query performance in production environments.
Multi-cloud expertise across major platforms: AWS for comprehensive services, GCP for AI/ML, Azure for enterprise integration, and Cloudflare for edge computing. Deploys to 50+ environments with 99.9% uptime SLA.
Infrastructure automation tools: Docker for containerization, Kubernetes for orchestration, Terraform for IaC, and GitHub Actions for CI/CD. Enables 200+ deployments per week with zero-downtime updates.
Cross-platform mobile development: React Native for unified codebases, Flutter for Dart-based apps, Swift for iOS native, and Kotlin for Android. Delivered 30+ mobile apps with 4.8+ average App Store ratings.
Where we've shipped.
Fintech
Fintech is our largest industry vertical, serving payment processing platforms, KYC/AML compliance systems, and algorithmic trading engines. We maintain PCI-DSS and SOC 2 certifications, having delivered 15+ fintech projects processing over $2 billion in annual transactions for clients.
Healthcare
Healthcare projects include HIPAA-compliant EHR systems, telemedicine platforms, and medical device integration software. We've delivered 12+ healthcare solutions serving 500K+ patients with 99.9% uptime and full regulatory compliance.
E-commerce
E-commerce solutions include custom storefronts, OMS systems, and marketplace platforms processing millions of monthly transactions. Our 20+ e-commerce projects have generated $500M+ in combined annual revenue for clients.
SaaS & B2B
SaaS and B2B projects range from MVP development to enterprise-grade products. As technical co-founders, we've helped launch 25+ SaaS companies with combined valuation exceeding $100M and serving 1M+ users.
Logistics
Logistics solutions include real-time tracking systems, WMS platforms, and route optimization engines. We've built 10+ logistics systems managing 50M+ shipments annually with average 15% efficiency improvements.
Government & Telecom
Government and telecom projects deliver mission-critical platforms with audit trails and uptime SLAs. Our 8+ projects serve 10M+ users with 99.99% uptime and full compliance with industry standards.
Questions, answered straight.
Let's talk about your project
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