.NET Engineer – (DevOps oriented) - Remote
At Q-tech, we’re partnering with a well‑established fintech company that develops advanced banking‑connectivity and cash‑management solutions for large enterprises and financial institutions across more than 15 countries.
We are currently looking for a
Senior Engineer (C#/Azure)
with a strong ownership mindset to drive the evolution of their core platform.
The product is B2B, highly critical, fully audited, and directly connected to international banks.
They are looking for someone who combines solid .NET backend expertise with real‑world experience in Azure, DevOps, and Infrastructure as Code, and who is comfortable working in hybrid environments (cloud + on‑prem infrastructures for clients).
What you’ll do
Design and implement backend services in
C# / .NET (ASP.NET Core)
with a focus on reliability, scalability, and best engineering practices.Define versioned and stable APIs following
schema‑first
models to ensure long‑term compatibility and traceability.Design and maintain
data models, audit models, and key event‑driven flows for reporting and regulatory compliance.Apply critical backend patterns and engineering standards.Contribute to distributed systems with asynchronous processing and messaging.Participate in the design and maintenance of
Azure infrastructure
using
Infrastructure as Code .Optimize SQL performance, diagnose queries, read execution plans, and propose performance improvements.Collaborate closely with
QA, Security and Data




teams to ensure a robust and auditable product.
What they’re looking for
7+ years of experience as a Backend Engineer.Deep expertise in
C#/.NET, SQL, and distributed architectures.Solid hands‑on experience with
Microsoft Azure
and
IaC in production
(mandatory).Background in regulated, audited, compliance‑driven or banking environments.Hands‑on experience with
Docker, performance tuning, and advanced troubleshooting.Strong ownership mindset and ability to lead technically without a people‑management role.Comfortable working in hybrid
cloud/on‑prem
environments.High level of English is essential.
✨
Nice to have
Previous experience in fintech, payments, treasury systems, or banking connectivity.TDD / contract testing at scale.Experience with messaging/queueing systems (Azure Service Bus, RabbitMQ, Kafka).Familiarity with
Azure
and serverless architectures.Experience in
SaaS B2B
or high‑throughput platforms.
️
Tech stack
C# / .NET (ASP.NET Core), Azure, IaC, Docker, Azure Functions, Azure Service Bus, messaging patterns, distributed systems, monitoring & observability.
What’s offeredPermanent contract.Salary: €60,000 – €75,000, depending on experience.Versátil modelMission‑critical B2B product with real impact on major corporations and international banks.Senior, high‑standards engineering team with a strong culture of best practices.Stable environment with a solid roadmap and architectural responsibilities from day one.

📌 .Net Engineer – (Devops Technologies) - Remote - €60.000 - €75.000 A Year - Remote (Madrid)
🏢 Q-Tech
📍 Madrid