Senior iOS engineer with strong C++ Experience

9 hours ago

Stockholm, Stockholm, Sweden emagine Full time

We're now looking for a Senior iOS engineer with strong C++ experience to join as a contractor, and help with modularization, modernization, and integration work in the Connectivity SDK.

We're prioritizing Stockholm-based candidates due to strong co-location with 4 of 6 squads in Infra PA, but are open to highly experienced SWE-based engineers with excellent remote collaboration skills.

This is a chance to work on our clients connectivity foundation - improving the reliability, latency, and efficiency of how every client talks to our backend systems. You'll join early in the formation of a new squad, shaping the technical direction and helping Core Infra build out mobile expertise.

As a senior consultant of the new Connectivity squad, you'd be expected to:

Help shape the technical direction for the client-to-backend networking stack.

Influence Core Infra's mobile infrastructure capabilities and long-term architecture.

Work on systems that directly impact app reliability, startup time, latency, and user experience across platforms.

Key responsibilities:

Refactor and modularize existing SDK components (iOS and C++), defining interfaces, ownership boundaries, testing strategies, and build/CI hygiene.

Design robust interfaces and ownership boundaries across mobile and backend systems.

Implement and maintain metrics and telemetry to enable end-to-end debugging and observability.

Collaborate with other engineers, PM, EM and partner teams to align on technical priorities and squad goals.

Contribute to long-term architectural decisions for the Connectivity SDK, sharing knowledge and establishing best practices for mobile infrastructure within Core Infra.

What We Are Looking For
5+ years of experience in mobile or platform engineering, with deep iOS expertise (Objective-C / Swift).

Solid C++ experience and ability to navigate large, multi-platform codebases.

Proven track record of building and shipping production-grade SDKs or mobile infrastructure components.

Deep understanding of networking fundamentals: HTTP/2+, WebSockets, retries/backoff, caching, and offline resilience.

Strong debugging, profiling, and performance optimization skills.

Experience with CI/CD systems, build automation, and modularization at scale.

Comfortable working in a fast-moving, forming team with a mix of permanent and contract engineers.

Strong communication skills; comfortable collaborating across mobile, backend, and infrastructure domains.

Start and end date: to

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