Senior Backend Software Engineer

United States Digital Space LLC

Amsterdam

On-site

EUR 90,000 - 140,000

Full time

14 days+

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Job summary

Loop is seeking a Senior Backend Software Engineer to own the backend platform behind Loop’s connected products. You’ll design, build, deploy, and operate cloud services that power our hardware, mobile apps, and cloud ecosystem with ownership and speed.

You’ll collaborate with Product, Firmware, Hardware, and Mobile Engineering to translate product requirements into scalable, secure backends, APIs, and data flows, ensuring reliability and performance.

Qualifications

8+ years in backend or full-stack software engineering.
Experience designing, deploying, and operating backend services.
Production experience with Google Cloud Platform and Firebase.
Security-first mindset and secure software development practices.

Responsibilities

Own the backend services powering Loop’s connected products end-to-end
Design, develop, test, deploy, and maintain secure, scalable backend services and APIs
Operate cloud infrastructure on Google Cloud Platform, including Firebase Authentication and Cloud Storage
Own deployment pipelines, environments, monitoring, health, and platform reliability
Design secure backend solutions, including access control and security reviews
Collaborate with cross-functional product, firmware, hardware, and mobile teams to deliver device-to-cloud integration and robust APIs
Provide technical direction to software development partners
Strengthen engineering practices through code reviews and mentoring

Skills

Backend engineering

Cloud architecture

API design

Security mindset

CI/CD

Monitoring

AI-assisted tools

IoT experience

Tools

Google Cloud Platform

Firebase

Cloud Storage

Authentication

Job description

Senior Backend Software Engineer

Location: Antwerp or Amsterdam — Hybrid

Experience: 8+ years in backend or full-stack software engineering

Own the backend platform behind Loop’s connected products and help create secure, reliable experiences that seamlessly connect hardware, mobile applications, and the cloud.

This isn't a lateral move. We built Loop by going all in from day one. You’ll design, build, deploy, and operate the cloud services that power our connected product ecosystem. All yours. If you've mastered backend engineering and you're ready to break the rules that no longer work, this is where you do it.

The role

You step into ownership. You move fast and take responsibility for what you build. You focus on work that matters, not on noise that slows things down. You’ll own the backend capabilities behind Loop’s connected product platform, from authentication and diagnostics to firmware updates, device communication, fleet-data access, and usage history.

Working closely with Product Management, Firmware & Hardware Engineering, and Mobile Engineering, you’ll turn product requirements into scalable technical solutions and deliver secure, reliable, and seamless connected experiences for our customers.

What you’ll do (and what you won’t)

You own the backend services powering Loop’s connected products end-to-end
You design, develop, test, deploy, and maintain secure, scalable backend services and APIs
You build and operate cloud infrastructure on Google Cloud Platform, including Firebase Authentication and Cloud Storage
You own deployment pipelines, environments, monitoring, operational health, and platform reliability
You design secure backend solutions, including access control, infrastructure hardening, security reviews, and pre-release penetration testing
You collaborate across Product, Firmware, Hardware, and Mobile Engineering to deliver reliable device-to-cloud integration, robust APIs, and optimized data flows
You provide technical direction to software development partners and ensure externally delivered solutions meet Loop’s engineering standards
You strengthen engineering practices through code reviews, mentoring, and continuous improvement

You won’t

wait for endless approvals
hide behind processes
talk about AI without practicing it in your workflow
spend months polishing work before launching it

How you’ll succeed

We look for people who think big, stay curious, and aren’t afraid to go all in to make things happen. You’ll combine hands‑on software engineering with systems thinking, take ownership of the platform’s operational health, and make pragmatic technical decisions that balance scalability, performance, security, reliability, maintainability, and delivery.

What you’ll bring

You bring at least 8 years of experience developing production software in backend or full-stack engineering roles
You have strong experience designing, building, deploying, and operating backend services and cloud-based applications
You have production experience with Google Cloud Platform and Firebase services
You understand API design, authentication, cloud storage, distributed systems, and modern software architecture
You have experience with CI/CD, infrastructure management, monitoring, and operating production systems
You bring a security‑first mindset and experience applying secure software development practices
You collaborate effectively within cross‑functional product development teams
You take a pragmatic approach to technical decision‑making
You use AI‑assisted engineering tools and workflows to improve development, testing, debugging, documentation, and code quality
Experience with connected or IoT products is a plus
Experience working with firmware teams and device communication technologies such as Bluetooth Low Energy is a plus
Experience supporting firmware‑over‑the‑air update platforms is a plus
Experience working with consumer hardware products is a plus
You’re comfortable with change and ambiguity
You know when work is ready to ship, and when it can evolve