SStepTo · Belgrade · est. 2014 · available

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.

100+Engineers in CET
95%Long-term retention
40–60%Lower vs. US/UK rates
~/stepto · sbs-pipeline
$ stepto deploy --ai-stack→ provisioning vector store · pgvector + redisdiscovery ✓ readyteam-assembly ✓ shortlisted in 5ddevelopment ▸ sprint 03 · day 4review — pending sign-offhandover — scheduled
LLM uptime
99.96%
RAG recall
0.93
SBS Methodology
milestone-gated delivery

Trusted by teams shipping at scale

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About StepTo

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.

Capabilities

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.

02

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
Learn more
03

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
Learn more
04

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
Learn more
05

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
Learn more
SBS Methodology

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.

01
Discovery
We map your goals, constraints, and success criteria before writing a single line of code.
02
Team Assembly
Engineers matched to your stack. You approve composition.
03
Development
Two-week sprints, daily standups, weekly demos.
04
Review
Demo, feedback, and refinement each sprint. You stay in control throughout.
05
Handover
Full codebase, docs, knowledge transfer, optional support.
Why StepTo

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.
10+
Years operating
100+
Engineers in-house
95%
Long-term retention
10+
Countries served
Stack

Modern, opinionated, production-grade.

01AI / ML

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.

OpenAIAnthropicLangChainLlamaIndexPyTorchTensorFlowpgvectorPinecone
02Languages

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.

TypeScriptPythonGoJavaC#
03Frontend

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.

ReactNext.jsAngularVueTailwind
04Backend

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.

Node.jsFastAPISpringGraphQLREST
05Data

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.

PostgreSQLMongoDBRedisKafka
06Cloud

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.

AWSGCPAzureCloudflare
07DevOps

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.

DockerKubernetesTerraformGitHub Actions
08Mobile

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.

React NativeFlutterSwiftKotlin
Industries

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.

FAQ

Questions, answered straight.

Five core service lines: AI & automation (LLM integration, RAG, custom ML — the headline practice), custom software development (web, mobile, enterprise), dedicated development teams (fully managed engineering teams), outstaffing/staff augmentation (engineers embedded in your team), and end-to-end software outsourcing. All delivered under our SBS methodology.
Full-stack AI: LLM integration with OpenAI/Anthropic, RAG systems, custom ML training, computer vision, NLP, and chatbots. Uses vector databases like Pinecone and pgvector. All projects start with feasibility assessment and POC, delivering production systems with 99.5% uptime.
Step by Step (SBS) is our proprietary delivery methodology. Work is structured into sequential, reviewable milestones — each with acceptance criteria and a client sign-off gate before the next stage begins. SBS includes a 2–4 week evaluation period at the start, daily async updates, weekly live demos, and monthly strategic reviews. Same standard for project, team, and augmentation engagements.
40–60% savings vs. equivalent Western European, US, or UK engineering hires. A senior US full-stack engineer's fully loaded cost often exceeds $280k/year; a comparable StepTo engineer is $55–85k/year, fully managed. For a 5-engineer team that's $500–700k in annual savings. Pricing is transparent, contracts adjust monthly, and there's no long-term lock-in.
Four steps. (1) You share requirements: stack, seniority, team size, domain. We shortlist within 5–7 business days from our pre-vetted talent pool. (2) You interview and decide. (3) Onboarding into your tools, codebase, sprints. (4) Your team operates on your schedule, reports to your leads. We provide a dedicated account manager. Most teams reach full productivity in 2–4 weeks. Sizes from 2 to 20+ engineers.
Outsourcing is project handoff: you define the deliverable, we build it. Outstaffing/augmentation is people: you get dedicated engineers working exclusively for you while we handle payroll, HR, and compliance. With outstaffing, you set priorities and run standups exactly as with an in-house hire. Best for companies with strong technical leadership who need to scale capacity quickly without permanent headcount commitments.
Belgrade, Serbia. The largest tech hub in the Western Balkans, home to 100,000+ developers and offices of major international tech companies. Serbia produces ~2,500 CS graduates annually from top European technical universities. We work in CET (UTC+1) — full overlap with Germany, UK, Switzerland, Austria, the Netherlands, and the Nordics; 4-hour morning overlap with US East Coast. All work in English. Operating since 2014.
Fintech (15+ projects, $2B+ processed), healthcare (12+ solutions, 500K+ patients), e-commerce (20+ platforms, $500M+ revenue), logistics (10+ systems, 50M+ shipments), SaaS/B2B (25+ products, $100M+ valuation), and more. Serves startups to enterprises.
Get in touch

Let's talk about your project

Tell us what you're building and we'll get back to you within one business day with a no-obligation assessment.

Emailinfo@stepto.net
Phone+381 60 371 1992
AddressBulevar Vudroa Vilsona 6, Belgrade

Office hours

Monday – Friday09:00 – 18:00 CET
WeekendClosed

Send us a message

We'll reply within one business day.

Published: January 2024 | Last updated: May 2026
Performance-led engineering

Senior engineers who move work forward, not just tickets.

Work with accountable, English-fluent professionals who communicate clearly, protect quality, and deliver with a steady operating rhythm. Cost efficiency matters, but performance is why clients stay with us.

Delivery signals · senior engineering team
Senior ownership
Lead-level
Delivery rhythm
Weekly
Timezone overlap
CET
1 teamaccountable for outcomes, communication, and execution