Backend Engineer (Distributed Systems)

ABOUT

Our client is an innovative company in the field of optical communication technologies headquartered in Luxembourg.

DESCRIPTION

The Backend Engineer will design build and maintain a distributed cloud-based backend system. This role is ideal for professionals with extensive backend development experience especially in high-performance secure and scalable architectures. The role offers a unique opportunity to contribute to data handling pipelines and mission-critical scheduling systems in a dynamic and innovative environment.

RESPONSIBILITIES

Design build and deploy scalable backend services in a distributed architecture

Implement reliable task scheduling and coordination mechanisms for time-sensitive operations

Develop APIs and service interfaces for integration with external systems and data sources

Create secure high-throughput data pipelines for large and sensitive datasets

Apply encryption and access control mechanisms across system

Integrate backend systems with cloud storage services

Monitor system operations implement observability tools and ensure high system availability

Collaborate with cross-functional teams to refine product requirements and iterate on solutions

REQUIREMENTS

Minimum 5 years of experience in backend software development for production systems

Strong proficiency in Go; Python experience is a plus

Practical experience with cloud platforms (AWS GCP or Azure) and containerization tools (Docker)

Solid knowledge of API design (REST gRPC) and microservices architecture

Experience with SQL databases (e.g. PostgreSQL) including schema design and performance optimization

Familiarity with message brokers (e.g. RabbitMQ AMQP Kafka) and asynchronous communication patterns

Understanding of core security practices: TLS authentication secrets management

Hands-on experience with infrastructure-as-code and CI/CD pipelines

Proficiency in Linux environments and modern development toolchains

Familiarity with Microsoft Office Suite and Teams or ability to quickly adapt

Excellent communication skills in English both written and spoken

Reliable autonomous and a collaborative team member

Citizenship of a NATO and EU member state is required.

Preferred:

Knowledge of high-throughput networking optimizations (e.g. QUIC TCP tuning)

Experience with data transfer strategies such as chunking and resumable uploads

Familiarity with observability tools (tracing metrics alerting)

BENEFITS

Competitive Compensation: Includes a comprehensive stock options plan to share in long-term success

Generous Paid Time Off: 40 paid days off per year (29 annual leave days 11 public holidays)

Daily Perks: Lunch vouchers for a more comfortable workday

Career Development: Access to continuous learning trainings and industry conferences

Relocation Support: Comprehensive assistance for those relocating to Luxembourg

Cultural & Wellness Programs: Free language courses and sports activities

Flexible Work Environment: Flexible hours and hybrid or remote work options to suit your life