We're seeking a Senior Frontend Engineer for our X team. As a Frontend Engineer, you will play a critical role in developing and enhancing our Frontend applications.

Drawing on your strong background in backend development and web technology, you will be tasked with building and maintaining sophisticated backend APIs and services. Your efforts will be vital to providing unmatched and unique advertising experiences, setting a standard in user engagement.

With a solid track record of crafting complex backend systems, you will integrate into our Agile team to develop robust and scalable backend services. These services are crucial in supporting our dynamic frontend and mobile applications and our comprehensive financing solutions, ultimately transforming how millions of users worldwide interact with shopping, payment, and banking platforms.

Your responsibilities

● Agile Development: Lead and drive Agile methodologies within the team, ensuring adherence

to the Scrum framework. Mentor team members through all phases of the software development

lifecycle, from planning and design to deployment and maintenance.

● Feature Implementation: Collaborate closely with the Product team to deeply understand

requirements and translate them into functional, efficient, and high-quality frontend code.

● Collaboration: Partner with Backend, Mobile, and QA engineers to ensure seamless backend

integration and functionality with other software ecosystem components. This includes

coordinating development efforts, troubleshooting, and supporting each other to meet project

timelines.

● Cross-Team Collaboration: Actively participate in Frontend Chapter meetings and initiatives,

contributing to the development of best practices, sharing knowledge, and staying updated with

the latest Frontend technologies and trends.

● Quality Assurance: Work in tandem with QA engineers to define comprehensive test cases,

support both automated and manual testing processes, and ensure that releases meet the

highest quality standards before deployment.

● Code Reviews: Lead and participate in code review sessions to uphold high code quality. Share

knowledge, provide and incorporate constructive feedback, and help improve overall codebase

health and architecture

● Continuous Integration and Deployment: Work with CI/CD tools to automate testing and

deployment processes, ensuring that changes are released efficiently to the production

environment with minimal downtime.

● Scrum Participation: Take a proactive role in leading daily stand-ups, sprint planning, sprint

grooming, and retrospective meetings. Utilize these activities to monitor progress, anticipate

challenges, and drive improvements in the development process and team efficiency.

● Documentation: Oversee and produce comprehensive documentation for development

processes, architectural designs, and code changes. Ensure documentation is detailed and

accessible to support current team operations and facilitate future project maintenance and

onboarding..

Your expertise:

● 6+ years of professional experience in Software Engineering, with a focus on Frontend

development.

● Framework Knowledge: Familiarity with major Javascript frameworks; experience with React JS

is preferred.

● Solid understanding of modern JavaScript features, including ES2023 updates, asynchronous

programming, and concurrent rendering concepts for building efficient and scalable applications.

● Experience in Software Development, Design, and Architecture, with security in mind

● Good practical knowledge of OOP concepts and SOLID principles

● Experience with Agile practices: Pairing, TDD, Continuous Integration, Continuous Delivery

● Expertise in optimizing web performance and Web Vitals (e.g., Core Web Vitals) to ensure fast

load times and smooth user experiences, including metrics like Time to First Byte (TTFB), Time

to Interactive (TTI), and First Contentful Paint (FCP).

● Experience in web application design and state management solutions

● Experience with Unit and Integration testing

● Understanding common security vulnerabilities and performance issues in web applications, and

knowing how to debug them

● Strong customer focus, you build accessible applications with a great UX

● Knowledge of web accessibility standards and best practices to create inclusive and accessible

web applications

● Superb communication skills, and ability to interact effectively with multidisciplinary teams.

● Next.js 15 and its latest features, such as improved server components, streaming, and

advanced static site generation, is a plus.