Senior Software Engineer, iOS

The Knot Worldwide Inc.; Barcelona; Híbrido; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading wedding marketplace is seeking a Senior Software Engineer in Barcelona to enhance the wedding planning iOS app. The role involves implementing features, fixing bugs, and collaborating with product and design teams. Applicants should have extensive iOS experience, especially with Swift and SwiftUI, and be ready to engage in a hybrid work environment, working in the office two days a week starting September 2025.

Servicios

Flexible vacation

Generous parental leave

Holistic wellness offerings

Formación

• 5+ years overall engineering experience.
• 3+ years proven track record implementing iOS applications in Swift.
• Experience working in an Agile environment.

Responsabilidades

• Implement app features that are well architected and tested.
• Participate in product roadmap and architecture discussions.
• Mentor junior team members.

Conocimientos

iOS application development

Swift programming

SwiftUI

RESTful APIs

Asynchronous programming

Excellent communication

Herramientas

Firebase

Agile tools

Descripción del empleo

At The Knot Worldwide, we champion celebration - and that starts with celebrating our people. Our employees are passionate dreamers, thoughtful doers, and lifelong learners who power meaningful moments for millions around the world. We’re united by authentic connection, shared purpose, and a deep commitment to the global community we serve. Here, flexibility and belonging go hand in hand with high performance. We believe the best ideas come from empowered teams: those who consistently collaborate with intention to design solutions, spark ideas, and drive impact. We inspire, we build, and we celebrate. We dream big, love our users, hustle every day, and always do the right thing to win - together. Our people are at the heart of our success.

ABOUT THE ROLE AND OUR TEAM

The Knot Worldwide is seeking an experienced Senior Software Engineer to join the TKWW Planning & Content team. This Senior Software Engineer will play an important role in evolving our planning tools within our The Knot Wedding Planner iOS app, including evaluating and building new features in conjunction with Product and Design partners, improving app reliability, fixing bugs, and communicating the status of tickets and fixes to various stakeholders, helping to ensure the experience presented to our users is the very best it can be!

The Senior Software Engineer will work cross-functionally alongside Product and Design to ideate and build best in class apps that support the company's goals. Our product and engineering teams work closely together at every phase of product development from research and inception to release and maintenance.

The Knot Worldwide is the leading wedding marketplace in over 16 countries, providing couples with a personalized experience that guides them through the entire wedding planning journey, and connecting them with local small businesses who can help them fulfill their wedding vision.

RESPONSIBILITIES

• Leverage skills and experience to implement app features that are well architected, tested, and understandable.
• Actively participate in the ideation and execution of product roadmap, architecture discussions, and Agile planning.
• Work closely with product and design partners to deliver value to users and business partners.
• Actively participate and lead cross-team technical discussions and decision making.
• Produce well-tested, extensible code that serves up to 5M+ requests per day.
• Follow best practices surrounding testing, continuous integration, code standards, etc.
• Develop test strategies and write unit/functional tests to ensure that we can move quickly and maintain a great user experience while doing so.
• Ensure technical KPIs around application maintenance, performance and resiliency are met.
• Provide mentorship to more junior members of the team.

SUCCESSFUL SENIOR SOFTWARE ENGINEER CANDIDATES HAVE

• 5+ years overall engineering experience.
• 3+ years hands-on proven track record implementing iOS applications in Swift.
• 1+ years of experience using SwiftUI.
• Ability to work with project teams located in multiple geographic locations.
• Experience working in an Agile environment.
• Excellent communication skills, both oral and written.
• High Proficiency in consuming RESTful APIs or API Communications (GraphQL) within applications
• Good grasp of asynchronous programming.
• Working knowledge of API-based user authentication and authorization (such as JWT).
• Experience debugging and correcting problems in both development and production, with experience using Firebase is a plus.
• Ability to translate business requirements into technical actions, and ensure that business value delivery is optimized without compromising technical quality.

WORK MODEL

This role is Together@TKWW-eligible and based near one of our office hubs. Starting September 15, 2025, you’ll be expected to work in the office two days a week as part of our hybrid work model.

WHAT WE LOVE ABOUT YOU

• You Dream Big. You iterate and experiment to drive innovation.
• You Love Our Users. You keep our global community at the center of everything you do.
• You Do the Right Thing. You strengthen your team through respect, fairness, and inclusion.
• You Hustle Every Day. You favor urgency and own your outcomes.
• You Win Together. People are at the heart of our success and you play as a team.

WHAT YOU LOVE ABOUT US

We believe in a wide range of holistic offerings to support our employees so that they can live our values day in and day out. From mental wellbeing, physical health and financial planning, to engaging perks and discounts, we are in the business of celebrating and supporting the Moments that Matter both in and out of the “office”. We offer flexible vacation, generous parental leave and prioritize initiatives that support the growth, development, and happiness of our people.

Together@TKWW is our approach to hybrid work

It’s designed to support how we work best: combining the flexibility we value with meaningful opportunities to connect in person. Whether a role is Together@TKWW-eligible or not, we believe in purposeful moments to come together, build strong relationships, and drive bold ideas forward.

• For Together@TKWW-eligible roles, this includes regular in-office time to foster collaboration and connection.
• For roles not eligible for in-office expectations, we support connection through virtual collaboration and intentional gatherings.

To facilitate in-person collaboration, we have office spaces in Barcelona, Spain; Delhi, India; Galway, Ireland; London, England; New York, NY; and Washington, D.C.

US Notice

The Knot Worldwide provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, or disability. In addition to federal law requirements, The Knot Worldwide complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. The Knot Worldwide expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

Privacy Notice

The Knot Worldwide (TKWW) processes your personal data to evaluate your application, based on the legal ground of taking steps prior to entering into a potential employment contract. Only the data strictly necessary for this purpose is collected. In some cases, your data may also be processed based on TKWW’s legitimate interests (e.g., to improve recruitment practices or manage candidate pools), to which you can object at any time. You have the right to access, rectify, or delete your data, and to object to certain uses. To learn more about your rights, please consult our Privacy Policy. If you wish to file a complaint, you may contact the competent data protection authority.

If we decide not to move forward with your application, we will retain your data for a period of time in accordance with applicable law and TKWW's data retention policy.