Senior Backend Engineer

Back Market is the world’s leading refurbished electronics marketplace with a team of 650 people, powering operations in 21 countries (and counting!).
Named one of the World's Most Innovative Companies by Fast Company in 2019 and again in 2021, our mission is simple: empowering people to consume tech sustainably by offering folks a high quality, accessible, and more eco-friendly alternative to buying new electronics. Why? Refurbished tech helps lower our collective environmental impact. We have indeed contributed to avoid the production of more than 1,000,000 tons of CO2e worldwide since our launch in 2014.
Be part of an exciting and growing international adventure that will change the way the world consumes tech.
Back Market is building their first engineering team in NYC! We are looking for passionate team members to join our office of 40+ people in Union Square, and a 250+ engineering team worldwide.  This will be a mobile app focused team whose mission is to help us spread the word about refurbished tech to save the planet and your wallet at the same time.  
We are looking for a Senior Backend Engineer to play a pivotal role in our strategic app-first approach to the US market. Our goal is to enhance user engagement by accelerating the development of innovative features and optimizing the overall app experience.
As one of two backend engineers in our first US-based engineering team,  you will work with two iOS engineers and an iOS tech lead/manager.  You will be at the forefront of our engineering efforts to create an amazing US customer experience for our service offering within our mobile application. You will be instrumental in aligning, designing, and driving the architectural vision for our mobile platforms & app features as we work to be US first and app first in all that we do.  
Your expertise in scalable, performant backend platforms, combined with your ability to make strategic decisions and communicate effectively across teams, will be key to driving the team’s success. You will work closely with the product manager and UX designer to ensure the right set of features, priority and impact at velocity are being designed and delivered.  You will participate in the Back Market backend community, partnering with others to continuously improve our practices. 

What you will do

• We are looking for a Senior Backend Engineer to help us build & operate a set of efficient, highly cohesive, loosely coupled services with {security, privacy}-by-{default,design} to support the growth of the business.
• You will be working in an agile “build it and run it” environment where engineering teams build, launch, monitor and support the product that they own. 
• We are looking for someone passionate about creating systems by producing clean, consistent and well-organized code, a team player interested in working with supportive colleagues and contributing to a learning and sharing environment!
• Lead the backend effort in delivering high-quality user experiences, setting benchmarks for excellence and scalability, thereby propelling our app's capabilities and product cycle velocity.
• Elevate the development of advanced app-first features, by emphasizing platform innovation, bridges, and actively building expertise within the backend engineering community at Back Market.
• Collaborate with a cross-functional team of peers from various disciplines (iOS, Android, SRE, Backend, Frontend, CyberSec, Data, etc.), to foster a culture of technical excellence and shared knowledge.
• Take ownership & anticipate high impact technical projects, managing dependencies both internally and externally, to realize the engineering and product visions.
• Drive the user experience forward by partnering with Product Managers & Designers, implementing scalable, resilient systems.
• Architect robust and efficient code patterns, ensuring your team members hold the same standard.
• Advocate for efficient testing methodologies, from unit and component tests to cutting-edge end-to-end practices, ensuring the highest quality and reliability of the features developed.
• Collect, explore and monitor the right data, utilizing tools like Datadog to track performance, errors, and core functionality, Big Query to gain data insights, and implement strategies to prevent regressions.

Required skills and experience

• 5+ years of Python, Go or other backend engineering experience
• Track record of strong technical leadership on strategic projects, ability to turn high level requirements into concrete deliverables balancing scope with dates for on time delivery
• Technical expertise in building and scaling backend end services, with h