Senior Fullstack Software Engineer- R&D

About Kueski

At Kueski, we're dedicated to improving the financial lives of people in Mexico. Since 2012, we've been the leading buy now, pay later (BNPL) and online consumer credit platform in Latin America, known for our innovative financial services. Our flagship product, Kueski Pay, provides seamless payment solutions for both online and in-store transactions, establishing itself as the preferred option for a quarter of Mexico's top e-commerce merchants. Notably, we were the first to introduce BNPL on Amazon Mexico.

We're a tech company with a culture geared toward innovation, collaboration, and impact, fostering a strong, diverse, and inclusive company culture. In 2023, Kueski was recognized as the top BNPL platform by Fintech Breakthrough and earned the title of one of Mexico's most ethical companies from AMITAI. Additionally, we ranked as one of the Best Companies for Female Talent by EFY.

We are looking for a versatile Fullstack Engineer with strong frontend and backend skills who is excited to develop and support features that enhance the scalability, functionality, and user experience of our products. In this role, you'll consider both functional and non-functional requirements and collaborate closely with other teams to drive our technological vision forward.

The ideal candidate is not only passionate about building high-quality solutions but also eager to mentor fellow engineers and facilitate cross-team collaboration to accomplish shared objectives.

Key Responsibilities

• Develop End-to-End Solutions: Design, build, and maintain high-quality software components across the stack, from frontend interfaces to backend services.
• Problem Analysis and Solution Design: Diagnose underlying issues and design scalable, efficient solutions that address technical challenges.
• Collaboration and Mentorship: Work closely with cross-functional teams to translate requirements into technical solutions and provide guidance to other software engineers.
• Quality Assurance: Write and maintain unit, integration, and end-to-end tests to ensure product quality, performance, and reliability.
• Documentation and Code Reviews: Ensure the delivery of clear, maintainable documentation, and perform code reviews to support team knowledge and code quality.
• Incident Management: Identify, troubleshoot, and resolve issues in a timely manner, and proactively monitor the systems to prevent incidents.
• Continuous Improvement: Participate in brainstorming sessions, propose improvements to practices and processes, and contribute to a culture of learning and growth.
• Technical Vision Support: Engage in early project discussions, contribute ideas for technical architecture, and help the team break down complex projects into manageable tasks.

Position Requirements (Experience & Competencies)

• Strong programming background and understanding of clean code principles.
• Experience integrating and building RESTful and GraphQL APIs.
• Ability to navigate and optimize the SDLC with an emphasis on non-functional requirements.
• Excellent collaboration skills within interdisciplinary teams.
• Eagerness to mentor, share knowledge, and support best practices within the team.




Technical Requirements

• Frontend Technologies: Proficient in React, JavaScript (JS), and Next.js for building interactive user interfaces and responsive web applications.
• Backend Technologies: Strong experience with Ruby on Rails, with an understanding of designing and implementing APIs.
• Cloud and Microservices: Experience with cloud services (AWS, Azure or similar), and knowledge of microservices-based infrastructure.
• Data Streaming: Familiarity with data streaming platforms like Kafka.
• Testing and SDLC Knowledge: Understanding of the software development lifecycle (SDLC) and the importance of unit, integration, and end-to-end testing.




Nice to have

• Additional Backend Languages: Familiarity with Go.
• Mobile Development: Experience with Flutter and Dart, and familiarity with mobile development processes.
• SEO Optimization: Knowledge of SEO best practices to improve web application visibility.
• Familiar with Agile principles.

At Kueski we embrace diversity in all forms, systematically promote equity, and ensure everyone feels included with a sense of belonging. We are committed to the full inclusion of all qualified candidates. As part of this commitment, we will make efforts to ensure reasonable accommodations are made during the hiring process. If reasonable accommodation is needed, please let the Talent Acquisition team know.