Senior .NET Engineer — APIs, Microservices & Remote Work

UST España & Latam; España; On-site; PHP 3,628,000 - 5,806,000; Full time

Benefits offered by this job

Annual leave benefits

Health plan

Teleworking allowance

Life and accident insurance

Training platforms

Career growth plans

Referral bonuses

12/14 payments options

WFH policy

UST Club discounts

Gym access discounts

Job summary

UST España & Latam seeks a Mid/Senior .NET Developer to join our banking-sector project. You will design, build and maintain high-quality .NET components across the full software delivery lifecycle.

You will work with trading, product, architecture and infra teams, applying strong engineering practices and owning complex platform components. Proficiency in English (C1) and strong C#/.NET Core experience are required.

Qualifications

• Advanced English (C1 level)
• Expert-level C# and .NET/.NET Core experience
• Strong OOP, SOLID, and Clean Architecture understanding
• Experience designing ASP.NET Core Web APIs and RESTful services in production
• Deep knowledge of multithreading, asynchronous programming, and performance tuning
• Experience with SQL and NoSQL databases, data modelling and performance
• Hands-on Docker experience and containerization
• Experience designing API-based microservices and SOA
• Strong automated testing discipline: Unit, Integration, BDD, NUnit, Mockito, Cucumber
• Experience with messaging and event-driven architectures: RabbitMQ, TIBCO, SignalR
• CI/CD and source control tools: Git, TeamCity

Responsibilities

• Design, build and maintain high-quality .NET software components across the full software delivery lifecycle.
• Own technically complex platform components, ensuring they are robust, maintainable, scalable and well documented.
• Apply strong engineering judgment to architecture, design, implementation, testing and operational considerations.
• Work closely with trading, product, architecture, infrastructure and partner technology teams to deliver solutions aligned to business priorities.
• Contribute to strong engineering practices including automated testing, observability, secure coding, CI/CD and effective release management.

Skills

C# / .NET

ASP.NET Core

OOP / SOLID / Clean Architecture

Multithreading / Async

SQL / NoSQL

Docker

RESTful APIs

Microservices / SOA

CI/CD

Unit / Integration Testing

RabbitMQ / Messaging

Git / TeamCity

English Language

Tools

Docker

Git

TeamCity

RabbitMQ

Job description

UST España & Latam seeks a Mid/Senior .NET Developer to join our banking-sector project. You will design, build and maintain high-quality .NET components across the full software delivery lifecycle.

You will work with trading, product, architecture and infra teams, applying strong engineering practices and owning complex platform components. Proficiency in English (C1) and strong C#/.NET Core experience are required.