Freelance Backend Engineer — AWS, Java Spring, AI Tools

Bitrock; Toscana; In loco; EUR 83.000 - 124.000; Tempo pieno

Descrizione del lavoro

Bitrock is seeking a Software Engineer Freelance to take full ownership of backend services within a startup-style, high-autonomy team in Tuscany, Italy. You will analyze, take over, and progressively rewrite components of an existing AWS platform today managed by an overseas vendor.

You will design RESTful APIs, microservices, and database integrations, leverage Java and Spring Boot, and work with Claude Code and AI agents to accelerate coding, debugging, and delivery.

Competenze

• Mid-to-senior level: primary technical reference toward overseas vendor.
• Solid hands-on experience with Java and Spring/Spring Boot ecosystem.
• Strong foundation in service-oriented architectures, REST APIs, and database management.
• Proven ability to work on poorly documented systems or legacy codebases (reverse engineering a plus).
• Autonomy and startup mindset with minimal supervision.
• Interest in AI-assisted development (Claude Code, AI agents).
• English: B1/B2 level.

Mansioni

• Analysis and takeover of existing backend services on AWS without complete access to source code.
• Progressive rewriting and development of missing or legacy backend components.
• Design and implementation of RESTful APIs, microservices, and database integrations.
• Reverse engineering and reconstructing system behavior from logs and configurations.
• Technical liaison with the overseas vendor during handoff.
• Active usage of AI-assisted tools to streamline coding, debugging, and testing workflows.

Conoscenze

Java

Spring Boot

REST APIs

AI-assisted development

English (B1/B2)

Strumenti

Claude Code

Descrizione del lavoro

Bitrock is seeking a Software Engineer Freelance to take full ownership of backend services within a startup-style, high-autonomy team in Tuscany, Italy. You will analyze, take over, and progressively rewrite components of an existing AWS platform today managed by an overseas vendor.

You will design RESTful APIs, microservices, and database integrations, leverage Java and Spring Boot, and work with Claude Code and AI agents to accelerate coding, debugging, and delivery.