Systems Engineer

Loop Future; Lisboa; On-site; EUR 55,000 - 75,000; Full time

Job summary

Loop Future is seeking a Systems Engineer in Lisbon to join a defence-focused team. You will define how equipment, signals, and protocols connect within integrated communication systems, supporting the full lifecycle from requirements through testing and acceptance.

Responsibilities include analyzing requirements, designing secure networks, producing HLD/LLD, and configuring networking gear. English is required; Portuguese is valued.

Qualifications

• Degree in Electronic Engineering or closely related field.
• Strong understanding of electronic systems at integration level, signals, interfaces and protocols.
• Hands-on experience integrating electronic, communication, or control systems.
• Ability to troubleshoot complex electronic and communication issues to root cause.
• Experience reading and producing high- and low-level design documents.
• Strong analytical mindset, attention to detail in demanding environments.
• Fluent written and spoken English; Portuguese is valued.

Responsibilities

• Analyse customer requirements and translate them into system and network solutions.
• Design, implement, and support secure communication networks with performance and scalability.
• Produce high-level and low-level design documentation (HLD/LLD).
• Configure, manage, and troubleshoot networking equipment and related tech.
• Collaborate with multidisciplinary teams to ensure successful system integration.

Skills

System integration

Networking

Embedded electronics

Troubleshooting

Technical documentation

Education

Degree in Electronic Engineering

Tools

Networking hardware

HLD/LLD documentation

Job description

Loop Future combines technology, innovation, and sustainability to create digital solutions that shape the future. By integrating software engineering, cloud solutions, salesforce expertise, and intelligent sourcing, Loop Future connects people, systems, and industries — driving efficiency, growth, and global impact. We are Headquartered in Portugal, but also have international offices in the UK, Switzerland and India. The company brings together a diverse and talented team committed to delivering cutting-edge digital experiences into domains such as TV & Media, Satellite & Space, Consultancy, Retail and many other domains.

About Role

One of our clients, a leading communications company operating in the Defence sector, is looking for a Systems Engineer to join its team. Electronics is the core of this role, with a strong focus on systems integration rather than low-level board design. You will define how different equipment, signals and communication protocols connect within integrated communication systems, supporting the full lifecycle from customer requirements and system design through documentation, testing, installation, commissioning and acceptance.

Responsibilities

• Analyse customer requirements and translate them into technical system and network solutions.
• Assess existing infrastructure and recommend enhancements or new architectures to meet business and technical requirements.
• Design, implement, and support secure communication networks, ensuring performance, resilience, and scalability.
• Produce high-level and low-level design documentation (HLD/LLD) for network and infrastructure solutions.
• Configure, manage, and troubleshoot networking equipment, including routers, switches, firewalls, and associated technologies.
• Diagnose and resolve complex issues across network, server, virtualised, and integrated systems.
• Collaborate with multidisciplinary engineering teams to ensure successful integration of networking, virtualisation, and communications platforms.

Requirements

• Degree or equivalent qualification in Electronic Engineering or a closely related field.
• Good understanding of electronic systems at integration level, including signals, interfaces, cabling, connectors and communication protocols.
• Hands-on experience integrating different electronic, communication or control systems, including analog and digital electronics, signal processing and embedded hardware principles.
• Ability to analyse and troubleshoot complex electronic and communication system issues, breaking problems down to identify root causes at hardware, signal or system level.
• Experience reading, interpreting and producing technical documentation, including high-level and low-level design documents.
• Strong analytical mindset, attention to detail and ability to work in technically demanding environments.
• Good written and spoken English is required; Portuguese is highly valued.

Nice to Have

• Experience or familiarity with networking, telecommunications systems and communication protocols.

Ready to shape the future?

If you are a systems-minded network engineer looking to take your career to the next level in a high-security domain, we want to hear from you.

#SystemsEngineer #DefenceTech #Telecoms #Eletronics#RoutingAndSwitching #LisbonJobs #TechHiring #LoopFuture