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Tech Lead Backend Java / IoT Senior - Freelance

La-Madeleine, Lille💼 Contract🗓 2026-06-19 → 2026-08-05

Core

Designing and developing high-value backend features for a next-generation IoT cloud platform managing millions of events and connected devices.

Role type

Senior Tech Lead Backend Java / IoT

Builds

Cloud platform for IoT device and event management

Domain

Internet of Things (IoT), Cloud Infrastructure

Deliverable

production ML models | product features

Required skills

Java, Spring Boot, Microservices architecture, REST API design, Distributed systems, Event-driven systems, Cloud environments, DevOps practices, Scalability, Performance optimization, Observability

Preferred skills

Serverless computing, Containerization, Infrastructure as Code

Technologies

Java, Spring Boot, Kafka, AWS, Terraform, GitHub Actions, AWS Lambda, Docker, MQTT, AMQP, OpenSearch

Responsibilities

Design and develop high-value backend features, Develop and maintain REST APIs and Back For Front (BFF) services, Participate in architecture choices and performance optimizations, Mentor the team on development best practices, Collaborate with Cloud, DevOps, and Product teams in an Agile context

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