Production AI · Autonomous Development Workflows · Cloud Architecture
Ship production software in weeks,
not months.
A senior engineering squad pairing deep system architecture with AI-native development workflows. Enterprise-grade output without the enterprise-size team.
AIuris
An AI-powered legal assistant built for Croatian lawyers and judges. We designed and developed it from the ground up - the AI agent, the mobile app, the backend, and the legal knowledge retrieval engine.
AI Legal Consultation
Intelligent assistant for legal question answering, document drafting, and strategy - grounded in retrieved evidence from Croatian law.
1,000,000+ Judicial Decisions
The largest legal database of judicial practice and over 3 million e-Oglasna notices, searchable and integrated into the AI context.
e-Građani Integration
Sync with Croatia's e-Komunikacija system for automated deadline tracking, calendar sync, and case management.
About Us
Engineering teams trust us with their hardest problems.
NextLevel Dev is a software engineering company based in Zagreb, Croatia. We specialize in enterprise-grade systems, cloud infrastructure, and AI-powered applications - from national government platforms serving millions of citizens to specialized legal tech products.
The top engineering organizations pair senior architecture judgment with AI-native development workflows - that's how we build too. Our work spans .NET, React, Node.js, and cloud platforms on AWS and Azure. We follow DDD, SOLID, and microservices patterns not because they're trendy, but because they're the right tool for the complexity we deal with.
We've also built things purely for fun - our game portfolio includes 20+ published titles with 5M+ players and a 4.9 average rating.
The Competitive Gap
The top 1% of tech companies ship differently.
What actually ships products isn't more hours - it's senior architecture, product intuition, and first-principles problem solving, amplified by modern autonomous development workflows.
The traditional setup
- More headcount, more hours - same output
- Boilerplate written by hand, billed by the hour
- AI prototypes that never survive production
- Months from kickoff to launch
The NextLevel way
- A senior squad with autonomous development workflows
- Architecture and product judgment first - code is the easy part
- AI shipped with guardrails, traceability, and controlled inference costs
- Weeks from kickoff to production
Enterprise-level engineering output without the 20-person overhead.
What We Do
Services
Four areas where we deliver the most leverage - each backed by systems running in production today.
Production AI Systems
AI agents and RAG pipelines engineered for reliability, traceability, and controlled inference costs - non-deterministic systems made enterprise-grade.
Running in AIuris & CleverQM
- LangChain & LangGraph agents
- RAG pipeline engineering
- AI FinOps, guardrails & cost control
AI-Native Development Workflows
Autonomous development pipelines and internal developer tools that compress time-to-market from months to weeks. Built for an enterprise AI platform at PwC.
Powering PwC's AI-native SDLC platform
- Autonomous coding agents
- MCP-based tool integration
- Internal developer platforms
Platform & Cloud Engineering
Cloud-native architecture on AWS and Azure, built for national scale. Infrastructure as Code, CI/CD, and observability that stays boring in production.
Running in e-Citizens & national transport systems
- AWS & Azure architecture
- Docker & Kubernetes
- CI/CD & DevOps automation
Architecture & Technical Leadership
Senior architecture judgment that unblocks teams - monolith-to-microservices modernization and technology decisions that hold up at scale.
Applied at Jobmatix, Kimeru & Fontem
- Architecture review & planning
- System modernization
- Team mentoring
Portfolio
Selected Work
Enterprise engagements where we led architecture, development, and delivery.
More Projects
Built In-House
Side projects and products we built for ourselves - from viral browser games to multiplayer shooters.
