Full-Stack Software Developer
Pubblicato il 25-10-2026 - Crionet in Monterotondo
Work mode: Hybrid (4 days/week in office)
Contract Type: Permanent (full-time)
Salary range (RAL): 25-35K
Who We Are:
Since 2007, Crionet has been developing innovative technological solutions for the world of professional tennis, enhancing the live experience for players, tournament organizers, broadcasters, and fans.
We collaborate with international tennis federations, professional tours, and broadcasters, bringing technology to some of the most prestigious tennis tournaments worldwide.
Our solutions operate in dynamic, demanding environments where reliability, performance, and innovation are essential.
The Role:
We are looking for an experienced Mid-Level Software Developer with strong expertise in C# and .NET, capable of independently delivering complete software features and taking ownership of technical solutions, while collaborating with the team on broader architectural decisions.
Key Responsibilities:
- Web app development: Independently design, implement, test, and maintain web applications using C# and .NET.
- API development: Build and integrate reliable, secure, and maintainable RESTful APIs.
- Technical ownership: Take responsibility for assigned features, from requirements analysis and technical design through deployment and maintenance.
- Database development: Write and optimize SQL queries, manage relational databases, and implement efficient data access using ORM frameworks.
- Problem solving: Independently investigate and resolve complex technical issues, including production bugs and performance bottlenecks.
- Code quality: Write clean, testable, and maintainable code, actively participate in code reviews,
and contribute to engineering best practices.
- Architecture and performance: Make informed implementation decisions and contribute to discussions on application architecture, scalability, security, and performance.
- Mobile development: Contribute to the development and integration of cross-platform mobile applications when needed.
- Collaboration: Work closely with developers, product teams, and other stakeholders to deliver effective and reliable solutions.
- Technical documentation: Maintain clear and practical documentation for implemented solutions.
Required Skills & Experience:
- Solid professional experience in software development, ideally 3–5 years, with a strong focus on C#, ASP.NET Core, and web application development using Razor Views (MVC).
- Proven hands‑on experience designing and developing RESTful APIs and back‑end services.
- Strong knowledge of relational databases, preferably Microsoft SQL Server or PostgreSQL.
- Experience with ORM frameworks, such as Entity Framework Core.
- Solid understanding of object‑oriented programming, SOLID principles, and common software design patterns.
- Experience using Git and working with collaborative development and code review processes.
- Ability to debug, troubleshoot, and optimize existing applications independently.
- Good understanding of cloud‑based application architectures, security principles, and performance optimization.
- Ability to manage assigned technical work autonomously, identify potential issues, and propose effective solutions.
- Strong analytical and problem‑solving skills.
- Professional working proficiency in English, both written and spoken.
Nice-to-have:
- Experience with Flutter or cross‑platform mobile development.
- Hands‑on experience with Microsoft Azure or AWS.
- Familiarity with React.
- Familiarity with Docker, Kubernetes, or containerized environments.
- Knowledge of microservices and distributed systems.
- Familiarity with Agile/Scrum methodologies.
- Experience with real‑time, high‑availability, or performance‑sensitive applications.
What We’re looking for:
Beyond technical expertise, we value developers who demonstrate:
- Autonomy: You can manage complex development tasks with limited supervision, making informed technical decisions.
- Ownership: You take responsibility for the quality, reliability, and maintainability of your work.
- Problem‑solving mindset: You investigate issues systematically and proactively identify solutions.
- Pragmatism: You balance code quality, performance, and delivery requirements.
- Collaboration: You communicate effectively, share knowledge, and know when to involve others in technical decisions.
- Continuous improvement: You are motivated to improve existing systems, learn new technologies, a