Software Engineer - Freelance

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

Who we are

Bitrock is a high-end consulting and system integration company, strongly committed to offering cutting-edge and innovative solutions. Our tailored consulting services enable our clients to preserve the value of legacy investments while migrating to more efficient systems and infrastructure. We take a holistic approach to technology: we consider each system in its totality, as a set of interconnected elements that work together to meet business needs.

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We thrive on overcoming challenges to help our clients reach their goals, by supporting them in the following areas: Data, AI & ML Engineering; Back-end Engineering, Platform Engineering, Front-end Engineering, Product Design & UX Engineering, Mobile App Development, Quality Assurance, FinOps, GovernanceThe effectiveness our solutions also stems from partnerships with key technology vendors, like HashiCorp, Confluent, Lightbend, Databricks, and Meterian.

Who we are looking for

We're looking for a Software Engineer Freelance to take full ownership of backend services within a startup-style, high-autonomy team. You will be responsible for analyzing, taking over, and progressively rewriting components of an existing AWS platform today managed by an overseas vendor. The team will make intensive use of Claude Code (license covered by the client) and dedicated AI agents (PM, Analyst, Dev, Tester, DevOps) to amplify impact and speed up development.

What You'll Do

• 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 architecture, and database integrations
• Reverse engineering and reconstructing system behavior starting from logs, configurations, and real service interactions
• Technical liaison with the current overseas vendor during the handoff phase
• Active usage of AI-assisted tools (Claude Code, AI agents) to streamline coding, debugging, and testing workflows

Requirements

• Mid-to-senior seniority: you'll act as a primary technical reference point toward the overseas vendor
• Solid, hands-on experience with Java and Spring / Spring Boot ecosystem
• Strong foundation in service-oriented architectures, xlwpduy REST APIs, and database management
• Proven ability to work on poorly documented systems or legacy codebases (reverse engineering experience is a strong plus)
• Autonomy, pragmatism, ownership: a startup mindset, no need for close supervision
• Experience with, or strong interest in, AI-assisted development (Claude Code, AI agents)
• English B1/B2

Duration:

1 year (possible extension)

Start:

ASAP

Recruitment process

Our recruitment process has 3 stages:

• First discovery short interview with our HR team
• Technical interview with our Team Leaders
• Final interview with our Client