iOS Engineer - Fully Remote in Europe at Sowelo Consulting sp. z o.o. sp. k. – Spain | Jobyssey

Want to build production-grade iOS applications where interactive AI isn't just an afterthought, but the core product experience?

Are you looking for a role where you can bridge native iOS craft with cutting-edge on-device and cloud-based machine learning?

Great, then please read on as we have a role for you.

The role is based in Europe.

Our clients mission is to fundamentally change the productivity landscape around email, calendars and note taking by developing proactive, AI-native applications designed for the general public. We are bringing seamless intelligence to workflows, scheduling, and daily errands, all without requiring users to master complex prompting.

As an iOS Software Engineer, you will own the native client experience, shaping how intelligent, data-driven features feel, respond, and perform in users’ hands. This is a core engineering role where interactive AI capabilities are central to the product ecosystem, demanding exceptional mobile performance, rock-solid reliability, and high user trust.

Key Responsibilities

Build and maintain high-performance native iOS applications using Swift and SwiftUI.
Integrate intelligent product features seamlessly through backend APIs.
Architect user experience patterns designed for real-time interactions, including streaming states, progress indicators, retries, and failure recovery.
Profile and optimize app performance, battery consumption, and memory management.
Collect user signals and telemetry to support continuous model evaluation and product iteration.
Partner with ML and backend engineering teams to define API contracts and system architectures.
Uphold rigorous production quality, release standards, and App Store stability.

To be a good fit for the iOS Engineer role, you will have:

3+ years of professional iOS development experience using Swift.
Practical experience implementing AI-driven or machine learning features within mobile applications.
Advanced knowledge of Swift concurrency (async/await), memory management, and background processing.
Demonstrated ability to design robust client experiences around network latency, graceful degradation, and dynamic model responses.
Track record of shipping and supporting consumer-facing production apps in the App Store.
Familiarity with on-device ML frameworks (e.g., CoreML) and feature flagging setups.
Strong product intuition focused on mobile UX and client-side reliability.

Reasons to join:

Small founding team, building a greenfield AI email product from scratch.
High‑caliber engineers from top tech companies; very high technical bar.
Fully remote, global team, strong ownership, and visible impact.
Very strong reward culture (including significant equity and high comp flexibility

Sounds interesting? Send us your CV by applying to this page

The provision of personal data by you is fully voluntary and the basis for their processing is your consent. We have prepared some necessary information, you can find in document: "Information regarding the processing of your personal data". There you will find how your Personal Data is being processed and what your rights are in connection to this.

The personal data will be processed by Sowelo Consulting spółka z ograniczoną odpowiedzialnością with its registered seat in Cracow (LLC) registered in National Court Register (KRS) under no. 0000671136, our Employees and Subcontractors (jointly referred to as the Company).

Sowelo Consulting sp. z o.o. (LLC) is entered in the register of employment agencies under the number: 35288

Our candidate selection process relies entirely on human judgment. We explicitly avoid using automated screening algorithms or AI-driven scoring systems for any part of the assessment. Every single profile is reviewed personally by our experienced recruiters, ensuring a thorough and unbiased consideration of your fit.

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Key Responsibilities

Reasons to join: