Mid-Level Fullstack Developer (Next.js + Python)

Mid-Level Fullstack Developer (Next.js Python)

Location: Kaunas, Lithuania (on-site)

Salary: €2,500–3,500/month gross, based on seniority

Overview

We're building an AI-native Transport Management System (TMS) that replaces the duct-taped reality of fleet operations — Excel, Samsara, Telegram, scattered spreadsheets — with one intelligent platform.

At the core

• Fleet optimization
• Predictive maintenance
• Real-time decision systems
• AI Copilot for operations

We're looking for a Mid-Level Fullstack Developer who can own features end-to-end — from the Next.js UI a dispatcher clicks to the backend service that talks to a truck. Someone who executes fast, thinks logically, and works shoulder-to-shoulder with a tech lead to ship real features, not just code.

This role is on-site in Kaunas. We work in person because the problems we solve are messy, cross-functional, and move faster with a whiteboard than a Zoom call.

What You'll Do

1. Build features end-to-end

• Ship complete features across the stack: Next.js frontend → API → backend service → database
• Develop interfaces dispatchers, mechanics, and operations teams use every day
• Implement APIs, business logic, and integrations on the backend
• Work on modules like fleet & asset management, repair orders & maintenance, dispatch & tracking

2. Work across a modern pragmatic stack

• Build user-facing features in Next.js (App Router, Server Components, TypeScript)
• Contribute to the existing Laravel (PHP) system where core business logic lives
• Build new services in Python (or Node.js) as we evolve toward a modular, API-first architecture
• Help shape the gradual migration — not rewrite-everything chaos, but thoughtful evolution

3. Integrate the real world

• Work with integrations like Samsara (GPS, telematics), EFS (payments, fuel data), and other operational APIs
• Handle data syncing, validation, error handling, and the edge cases that come with hardware-meets-software

4. Collaborate closely with the tech lead

• Translate product requirements into technical solutions
• Get tasks → ask the right questions → deliver clean implementation
• Participate in code reviews and iterative improvements

What We're Looking For

Must-have

• 2–5 years of professional development experience
• Strong experience with Next.js / React and TypeScript
• Solid backend experience in Python or PHP (Laravel a plus)
• Comfortable building and consuming REST APIs
• Working knowledge of SQL and basic schema design
• Willingness to work across the stack — not "I only do frontend" or "I only do backend"

Strong plus

• Experience with system integrations and external APIs
• Background jobs, queues, async processing
• WebSockets or real-time systems
• Docker or cloud environments (AWS / GCP)
• Exposure to AI/LLM integrations or vector databases

Mindset

• You finish what you start
• You ask questions instead of guessing
• You care about clean, maintainable code — but also know when "good enough and shipped" beats "perfect and pending"
• You want to grow toward senior / system-level engineering

Tech Stack (Current / Planned)

• Frontend: Next.js, TypeScript, Tailwind
• Backend: Laravel (PHP), Python / Node.js services
• Infra: Redis, queues, WebSockets
• Integrations: Samsara, EFS, and more
• Future: event-driven architecture, deeper AI integrations

What You'll Build (Real Examples)

• Dispatcher dashboard for managing truck/trailer lifecycle — UI to API to DB
• Sync service between Samsara and our TMS, plus the screens to monitor it
• Repair order workflows with real-time status tracking
• Notification and alert systems (geofence events, maintenance triggers)
• AI Copilot interfaces that let operators ask questions in plain language

Why Join

• Startup speed with real budget and real problems — not a hobby project
• Work directly with an experienced tech lead — clear direction, no chaos
• Build systems used daily — every feature ships to people who depend on it
• Clear growth path → senior / system architect
• On-site energy in Kaunas — fast feedback loops, real conversations, real ownership
• No corporate fluff — just building and shipping