Senior iOS Engineer

Veriff; España; Presencial; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote-friendly

Stock options

Recharge days

Relocation support

Health insurance

Learning & development budget

Sabbatical after 5 years

Descripción de la vacante

Veriff is seeking a Senior iOS Engineer to help build a reliable, secure SDK for a wide range of devices. You will design, develop, and maintain the iOS SDK using Swift, collaborating with product, design, and backend teams to ship high‑quality, scalable code.

You will tackle performance, reliability, and testing across varying networks and devices, mentor other engineers, contribute to the SDK's technical direction, and help Veriff stay at the forefront of mobile identity solutions.

Formación

• Proven experience as a Senior iOS Engineer building high-quality iOS apps or SDKs.
• Strong expertise in Swift and iOS frameworks (Cocoa Touch, UIKit).
• Experience designing scalable, testable codebases and APIs.
• Solid understanding of mobile architecture patterns and best practices.
• Experience with RESTful APIs integration in mobile apps.
• Experience with testing frameworks and automation tools (unit, integration, performance testing, Fastlane).
• Strong problem-solving and ownership mindset; able to drive complex initiatives.
• Excellent communication and cross-team collaboration.

Responsabilidades

• Design, develop, and maintain the iOS SDK using Swift for performance, security, and usability.
• Collaborate with product managers, designers, and backend engineers.
• Address performance and compatibility across devices and networks.
• Implement and improve testing strategies (unit, integration, performance).
• Participate in code reviews and mentor other engineers.
• Advocate for new technologies to improve development efficiency and product quality.
• Identify bottlenecks and resolve issues to ensure reliability.
• Contribute to the technical direction of the iOS SDK.

Conocimientos

Swift

iOS development

Communication

Ownership mindset

Problem-solving

Herramientas

Fastlane

CI/CD pipelines

RESTful APIs

Testing automation

Descripción del empleo

Overview

The Engineering team builds the software powering Veriff, tackling the challenges of online identity in a scalable and innovative way. We’re looking for a Senior iOS Engineer to help us build a reliable, secure, and high-performing SDK that works seamlessly across a wide range of devices.

We’re looking for an experienced Senior iOS Engineer to help us build an SDK that is reliable, secure, and high-performing across a wide range of devices and environments. As our user base continues to grow, ensuring a seamless experience — even on older devices and slower networks — is critical.

This role is key to developing a lean, efficient, and scalable app that integrates smoothly with partner applications. Your expertise will help tackle challenges around performance optimisation, reliability, and usability, keeping Veriff at the forefront of digital identity verification.

You’ll help us protect honest people online by:

• Designing, developing, and maintaining our iOS SDK using Swift, ensuring high performance, security, and usability
• Collaborating closely with cross-functional teams including product managers, designers, and backend engineers
• Addressing challenges related to performance and compatibility across a wide range of devices and network conditions
• Implementing and improving testing strategies, including unit, integration, and performance testing
• Participating in code reviews, providing constructive feedback, and mentoring other engineers
• Identifying and advocating for new technologies, tools, and best practices to improve development efficiency and product quality
• Proactively identifying bottlenecks and resolving issues to ensure reliability and stability
• Contributing to the technical direction of the iOS SDK and helping shape the future of Veriff’s mobile products

You are the right future Veriffian for the job if you have:

• Proven experience as a Senior iOS Engineer with a strong track record in building high-quality iOS applications or SDKs
• Strong expertise in Swift and iOS frameworks (Cocoa Touch, UIKit, etc.)
• Experience designing and maintaining scalable, testable codebases and APIs
• Solid understanding of mobile architecture patterns and best practices
• Experience working with RESTful APIs and integrating them into mobile applications
• Experience with testing frameworks and automation tools (e.g., unit, integration, performance testing, Fastlane)
• Strong problem-solving skills, ownership mindset, and ability to drive complex initiatives
• Excellent communication skills and ability to collaborate across teams

You’re an especially awesome match if you have:

• Experience developing and maintaining iOS SDKs
• Familiarity with Agile methodologies such as Scrum or Kanban
• Experience with CI/CD pipelines and automation processes
• Exposure to other platforms (Android, cross-platform frameworks)
• Knowledge of accessibility and inclusive design practices

Why Veriff?

We are the preferred identity verification platform partner for the world’s most innovative growth-driven organizations helping conveniently verify and safeguard users anywhere in the world. We support the broadest number of identity documents from nearly every country and territory in the world - and this is continually increasing! With a diverse team in the United States, United Kingdom, Spain, and Estonia, as well as robust backing and funding from investors including Accel, Alkeon, IVP, Tiger Capital, and Y Combinator, we’re dedicated to helping businesses and individuals build a safer and more secure world. We strive to be the benchmark for trust online, and we take pride in being a positive force.

When you join Team Veriff, we offer you the opportunity to have a real impact and advance your career, while looking after you along the way with a range of benefits designed with you in mind. Some of our favorites include…

• Flexibility to work from home
• Stock options that ensure your share in our success
• Extra recharge days on top of your annual vacation
• Comprehensive relocation support to Estonia or Spain
• Extensive medical, dental, and vision insurance to ensure you’re feeling great physically and mentally
• Learning and Development & Health and Sports budget that you are free to tailor to your own needs
• Four weeks of fully paid sabbatical leave after reaching your 5th work anniversary

We are an Equal Opportunities employer committed to a diverse and representative team. Different opinions, perspectives and personalities push us forward. We want to hear from people who are passionate about their work and align with our values. Regardless of race, religion, color, national origin, gender, sexual orientation, age, marital status or disability. We also know the confidence gap and imposter syndrome can get in the way of meeting spectacular candidates - so rest assured, whoever you are, we want to hear from you!

Please be informed that in the final stage of the recruitment process we may request you to go through identity verification. For more information, please see the Recruitment Privacy Policy.

Note: This job description is subject to change and may be updated as Veriff evolves.