Senior .NET Engineer

Location: Spain; hybrid work setup. The team is based in Málaga.

Company

hirify.global is a custom product engineering company supporting multinational organizations and scaling startups, with a global team of more than 4,000 specialists.

What you will do

• Develop backend components and microservices for a global payments platform serving corporates and millions of payment receivers in more than 190 countries.
• Participate in application architecture, solution design, architecture reviews, code reviews, and feature design documentation.
• Design and implement unit, integration, functional, and other automated tests.
• Deliver the product roadmap, improve development processes, and maintain high coding, performance, and automation standards throughout the SDLC.
• Collaborate with PMs, engineers, architects, QA specialists, and other stakeholders in an international distributed Agile team.

Requirements

• More than 5 years of software development experience, including more than 2 years of practical commercial experience with the listed .NET, testing, ORM, and database technologies.
• Excellent knowledge of clean code, programming, OOP, OOD, SOLID, DDD, TDD, and BDD.
• Strong knowledge of database theory, including RDBMS and NoSQL, algorithms, data structures, architectural, enterprise, and design patterns.
• Knowledge of security patterns, resistance to reverse engineering, common attack types including OWASP, network protocols, REST, RPC, authentication, authorization, OAuth, and JWT.
• Excellent experience with C# and .NET, including .NET Framework, .NET Core, ASP.NET Core, MVC, and WebAPI.
• Commercial experience with testing frameworks such as NUnit, xUnit, or MSTest; ORMs such as Entity Framework or Dapper; RDBMS such as SQL Server, MySQL/MariaDB, or PostgreSQL; key-value storage; Redis; messaging systems; web servers; Git; continuous integration tools; and builders.
• Experience troubleshooting, profiling, and debugging applications; creating architectures and designs for complex applications, platforms, and microservices; Agile processes; code review; and refactoring.
• Fluent or Upper-Intermediate English required.

Culture & Benefits

• Hybrid work in Spain with flexible start times, regular team stand-ups, 23 vacation days, and short Fridays.
• Company-paid medical insurance and four additional undocumented sick leave days.
• Internal meetups, conferences, workshops, Udemy access, language courses, and company-paid certifications.
• Growth opportunities through a global professional community and Internal Mobility Program.
• International projects, collaborative culture, open-door policy, informal atmosphere, and regular team-building events.