High-performance AI & software engineered, step by step — your nearshore software development partner.
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.
A 15-20 person engineering team runs every engagement out of Belgrade, working the CET time zone with 6+ hours of daily overlap for US East Coast clients. Long-term client retention sits at 95% — most clients who start with StepTo stay for years.
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 models: embedded teams, augmented squads, full project ownership, dedicated teams, and staff augmentation — each built around the same senior, direct-hire engineers regardless of contract structure.
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.
- 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.
- 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, with 95% long-term retention and a 2-4 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. Scale up or down monthly as your needs change, with no long-term commitment required.
- 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, and full IP handover from day one.
- Five-stage delivery model
- Two-week agile sprints
- Weekly client demos
- Post-launch support contracts
Built for predictability, one stage at a time.
Every engagement follows the same five-stage delivery model, from discovery through handover, with clear milestones at each stage. Predictable, reviewable, low-risk.
Serious engineering, calibrated to ship.
Tried outsourcing before? Our process is built 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; 6+ hours overlap with US East Coast.
- Transparent governanceMilestone-based delivery, full IP ownership, no long-term lock-in.
Modern, opinionated, production-grade.
StepTo engineers ship on a curated stack — TypeScript, Python, React/Next.js, and cloud-native infrastructure — chosen for production reliability, not novelty.
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.
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. 15-20 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.
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.
Robust data infrastructure: PostgreSQL for relational data, MongoDB for documents, Redis for caching, and Kafka for streaming.
Multi-cloud expertise across major platforms: AWS for comprehensive services, GCP for AI/ML, Azure for enterprise integration, and Cloudflare for edge computing.
Infrastructure automation tools: Docker for containerization, Kubernetes for orchestration, Terraform for IaC, and GitHub Actions for CI/CD, enabling zero-downtime deployments.
Cross-platform mobile development: React Native for unified codebases, Flutter for Dart-based apps, Swift for iOS native, and Kotlin for Android.
Where we've shipped.
Fintech
Fintech is our largest industry vertical, serving payment processing platforms, KYC/AML compliance systems, and algorithmic trading engines. We follow PCI-DSS and SOC 2-aligned security practices across every fintech engagement.
Healthcare
Healthcare projects include HIPAA-compliant EHR systems, telemedicine platforms, and medical device integration software, built with full regulatory compliance and HL7/FHIR interoperability standards.
E-commerce
E-commerce solutions include custom storefronts, OMS systems, and marketplace platforms built to handle high transaction volumes and peak seasonal traffic.
SaaS & B2B
SaaS and B2B projects range from MVP development to enterprise-grade products. As technical co-founders and dedicated-team partners, we help SaaS companies scale from first release to a mature, multi-tenant platform.
Logistics
Logistics solutions include real-time tracking systems, WMS platforms, and route optimization engines built for high-throughput, mission-critical operations.
Government & Telecom
Government and telecom projects deliver mission-critical platforms with audit trails, uptime SLAs, and full compliance with industry standards.
Questions, answered straight.
Real results, real clients
Recent projects demonstrating our approach to complex engineering challenges.
E-commerce Platform Rebuild
Rebuilt a legacy Rails monolith into a modern React/Node.js platform, dropping mobile load time (LCP) from 8.2s to under 500ms.
Dedicated React Team
Grew a 5-engineer dedicated React/TypeScript team for a Munich-based Series A SaaS company over 18 months.
AI Support Automation (RAG)
Built a RAG-powered support automation system for a Series B B2B SaaS platform, cutting first-response time and auto-resolving tier-1 tickets.
Let's talk about your project
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Office hours
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