Senior .NET Engineer – Hybrid, Global Payments, Growth

Ciklum; Spain; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Medical insurance and sick leave

Udemy license and training

Language courses and certifications

Flexible schedule

23 vacation days & short Fridays

Internal Mobility Program

Global project experience

Welcoming team culture

Job summary

Ciklum is seeking a Senior .NET Engineer to join our Spain team in Málaga. You will be part of a cross-functional development team building tomorrow's experiences in a fast-growing, well-funded payments environment.

You will contribute to backend development, architecture decisions, and testing within an agile, distributed setup. The role requires 5+ years of software development, strong C#/.NET expertise, and experience with REST APIs, microservices, and databases.

Qualifications

• 5+ years of software development experience.
• Strong knowledge of Clean code, OOP and OOD.
• Proficiency in programming concepts and paradigms.
• Database theory: RDBMS, NoSQL.
• Code testing practices and methodologies.
• Algorithms and data structures.
• Architectural, Enterprise and Design Patterns.
• Security patterns, OWASP protection.
• Understanding of network interactions: REST, RPC, OAuth/JWT.

Responsibilities

• Back-end development to meet customer needs in a microservice architecture.
• Participate in design decisions for architecture and code reviews.
• Develop and review feature design documents and specifications.
• Design and implement tests (unit/integration/functional).
• Work in an international distributed Agile team.
• Communicate with PMs, engineers, architects, QA and stakeholders.
• Deliver the product roadmap and plannings.
• Write high-quality, testable, maintainable code across the SDLC.

Skills

C# and .NET

REST API development

Microservices

SQL & NoSQL databases

Unit/Integration testing

Azure / Cloud services

Git / CI tools

English proficiency

Tools

ASP.NET Core

Entity Framework

Dapper

SQL Server

RabbitMQ / Kafka

Redis

Web servers

Job description

Ciklum is seeking a Senior .NET Engineer to join our Spain team in Málaga. You will be part of a cross-functional development team building tomorrow's experiences in a fast-growing, well-funded payments environment.

You will contribute to backend development, architecture decisions, and testing within an agile, distributed setup. The role requires 5+ years of software development, strong C#/.NET expertise, and experience with REST APIs, microservices, and databases.