Creating future-proof
digital solutions in Estonia.
J&L Dev is a Tartu-based technology firm specializing in full-stack development, from high-performance Rust backends to modern React interfaces. We empower businesses through smart automation.
Company Numbers
Comprehensive IT Services
We provide end-to-end IT solutions tailored to your business needs. From custom React frontends with TypeScript type safety to high-performance Rust backends, we deliver scalable systems that support your growth.
Software Development
Custom software solutions, web applications, and systems integration. We use modern technologies to deliver optimal performance and results.
- React & TypeScript
- Rust Backend
- Systems Architecture
- API Development
IT Infrastructure
Data processing infrastructure and cloud solutions management. We ensure system stability and security.
- Cloud Services
- Server Management
- Network Solutions
- Backup Systems
Consulting & Architecture
Strategic IT consulting. We help you choose the right technologies and optimize business processes.
- Architecture Design
- Security Audits
- Process Automation
- Technical Support
NIS2 & DORA Cybersecurity Resilience
Ensure your IT infrastructure meets rigorous EU requirements. Protect your business from critical vulnerabilities and massive compliance fines.
- Rust Security Rewrites
- Kubernetes Isolation & DR
- Zero-Trust Networking
- NIS2/DORA Gap Analysis
Headless B2B E-Commerce
Instantly sync massive warehouse inventories with ultra-fast, tailored B2B storefronts that won't crash under load.
- React Storefronts
- Rust Middleware & API
- Real-Time Inventory Sync
- Legacy ERP Integration
Why choose us as your
technology partner?
Top-tier Security
We implement best practices to protect data and secure systems.
Scalable Solutions
We build systems that grow with your business without interruptions.
Transparent Collaboration
We keep you informed at every stage of development and ensure clear communication.
Technology Stack & What We Build
Expert-level development across modern tech stacks. We specialize in high-performance applications that scale.
React & TypeScript
We build interactive web interfaces with React 18+, TypeScript strict mode for type safety, and modern state management. Typical applications: admin dashboards, customer portals, real-time collaboration tools.
Rust Backend
Memory-safe, high-throughput backends using Tokio and Actix-web. We build APIs handling 10,000+ requests/second with guaranteed memory safety.
Cloud & Kubernetes
AWS and Google Cloud expertise with containerization and Kubernetes orchestration. We design: auto-scaling architectures, disaster recovery, zero-downtime deployments.
PostgreSQL & Databases
Expert database design and optimization. We handle: schema design for scale, query performance tuning, replication and sharding, backup and recovery strategies.
Go Programming
Efficient concurrent services and command-line tools. We build: deployment tools, background job processors, microservices, infrastructure tooling.
Latest Technical Insights
Explore our latest articles on high-performance engineering, cloud architecture, and digital transformation in 2026.
The Most Active Tech Stack at J&L Dev in 2026
An inside look at the high-performance technologies we are using to build the next generation of digital solutions, from Rust backends to React 19.
Read: Tech Stack 2026Rust in Production: How We Rewrote a Fintech API and Cut AWS Costs by 70%
A real-world account of how we rewrote a client's Node.js payment validation service in Rust — and the numbers that followed: p99 latency dropped from 45ms to 3ms, memory from 512MB to 48MB per container, and the monthly AWS bill fell by 70%.
Read: Rust Production Case StudyThe Complete NIS2 Compliance Guide for EU Tech Companies (2026)
NIS2 applies to 160,000+ EU organizations and penalties reach €10 million or 2% of global revenue. This guide covers everything EU tech companies need to know: scope assessment, the 21 required security measures, 72-hour incident reporting, DORA overlap, and a practical readiness checklist.
Read: NIS2 Compliance Guide 202615-Point Cloud Resilience Checklist for Mid-Market CTOs
Most cloud outages are not caused by exotic failures. They are caused by basics that were 'temporary workarounds' three years ago. This 15-point checklist helps mid-market CTOs identify the gaps that silently accumulate in AWS, Azure, and GCP environments.
Read: Cloud Resilience ChecklistFrequently Asked Questions
Got questions? We've got answers. If you have some other questions, feel free to reach out to our team.
Contact SupportContact Us
Do you have an idea or need technical help? Write to us and let's find the best solution together.