Alongside partners with organizations to drive digital transformation and build high-performing tech teams.
We're looking for a mid-level engineer to own both backend service development and data engineering on a realtime facility navigation and asset-tracking platform for industrial and logistics sites. The platform ingests live positioning and telemetry data from BLE-based tracking hardware, correlates it into events (e.g., asset pickups, movement, dwell time), and exposes it through backend services to web and mobile clients.
What You'll Do
• Design, build, and maintain backend services and APIs (C#/.NET) that power the platform's core business logic.
• Implement and maintain the service layer for asset tracking, facility navigation, and event detection features.
• Integrate with third-party positioning/telemetry providers and their APIs.
• Define and evolve API contracts in collaboration with the frontend team (web admin portal and mobile app).
• Write automated tests, participate in code review, and help keep the codebase maintainable as the platform grows.
• Support deployment, monitoring, and troubleshooting of backend services in production.
Requirements
What We're Looking For
• 2–5 years of professional software engineering experience.
• Strong proficiency in C#/.NET for backend service development.
• Experience integrating with third-party APIs and webhooks.
• Comfortable working with real-time or near-real-time data processing requirements.
• Experience with a major cloud platform (Azure preferred, given the .NET stack).
• Strong communication skills and comfort working in a small, cross-functional, fast-moving team.
Benefits
- Remote work (Portugal-based)
- Estimated project duration: 19 weeks
- Full-time schedule: 8 hours per day, with mandatory availability for at least 4 hours
- Freelance / Service Agreement
- Hourly Rate: 31€ - 33€
Skills Required
- 2-5 years of professional software engineering experience
- Strong proficiency in C#/.NET for backend service development
- Experience integrating with third-party APIs and webhooks
- Comfortable working with real-time or near-real-time data processing requirements
- Experience with a major cloud platform (Azure preferred)
- Strong communication skills and comfort working in a small, cross-functional, fast-moving team
What We Do
Alongside | Build Great Products with Great Teams Alongside helps VC-backed start-ups, scale-ups and digital-first enterprises accelerate their roadmaps by assembling elite, time-zone-aligned teams of software engineers, product managers and UX/UI designers, often in under 14 days. Our Porto HQ sits in Europe’s fastest-growing tech hub and taps a vetted global talent pool that lets you ship faster, reduce burn and stay laser-focused on product-market fit. Why high-growth companies choose Alongside • Top 1 % practitioners: rigorously screened full-stack, mobile, blockchain & AI/ML engineers, plus senior designers and product leaders.  • Flexible engagement models: scale a single specialist, an entire squad, or an autonomous build-and-ship pod. • End-to-end ownership: discovery → design → development → launch, with weekly velocity reports and transparent KPIs. • Cost-efficient remote talent: New York, Porto, Pune & Hanoi offices give you round-the-clock progress without Silicon-Valley price tags.  • Proven track record: core Alongside team took Arkive, the world’s first decentralised museum, from idea to funded product. We helped Circuit Security to secure 4.5M in funding and many other startups.
