Senior Software Engineer, iOS Barcelona, Catalonia, Spain

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, (Experience with tools such as 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 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.

At The Knot Worldwide, we believe you are more than a resume and invite you to go for it, take the leap of faith, and apply for this job if it sparks your passion to join TKWW and make a difference!

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.

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 or not, we believe in purposeful moments to come together, build strong relationships, and drive bold ideas forward.

For 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 : TKWW processes your personal data as part of the recruitment process, based on the legal basis of executing pre-contractual measures at your request. This means we use your information to assess your application and carry out the necessary steps for a potential employment contract. Only the information strictly necessary for evaluating your application is collected. You can request access, rectification, or deletion of your data. For more information on how we handle your personal data, please refer to our Privacy Policy . If you wish to file a complaint, you may contact the competent data protection authority.

Create a Job Alert

Interested in building your career at The Knot Worldwide? Get future opportunities sent straight to your email.

Apply for this job

indicates a required field

First Name

Last Name

Preferred First Name

Email

Phone

Resume / CV

Enter manually

Accepted file types : pdf, doc, docx, txt, rtf

Enter manually

Accepted file types : pdf, doc, docx, txt, rtf

Are you legally authorized to work in the country to which you are applying?

• Select...

This position is a hybrid role where you will need to go to the Barcelona office two days a week. Does that work for you? Select...

What are your minimum compensation requirements (Total Take Home Earnings)?

Have you previously worked for The Knot Worldwide, including its subsidiaries or brands?

#J-18808-Ljbffr