Senior Python Backend Engineer (in London)

About us

• Chattermill — платформа, сочетающая ML с глубинным пониманием компании и её клиентов, с возможностью интегрироваться с любой системой, используемой для сбора отзывов. Штаб-квартира компании находится в Лондоне
• Chattermill привлекли инвестиций в сумме на $16.6M в течение 5 раундов

Responsibilities

• Collaborate closely with multiple teams including our Ruby Backend team, Data Science team and our Infrastructure team to turn new research prototypes into production-ready services integrated with our data pipeline. 
• Improve our ML services framework to deliver new services with ease while improving scalability and resilience of our data pipeline
• Improve observability of our data pipeline to improve its performance, optimize cost of computations and make better design decisions
• Share knowledge across different technical teams on backend development best practices
• Work in a fast-paced environment to develop new functionality in our app while delivering optimizations and improvements to existing functionality
• Be involved in all steps of projects including brainstorming of raw ideas, design, architecture, implementation, automated tests development and monitoring the health of the systems in production
• Work in a multi-functional team to exceed our customer's expectations

Requirements

• 3+ years of experience with Python
• Good CS fundamentals and practical knowledge of SOLID principles, design patterns and anti-patterns, ability to use UML to explain design concepts
• Proficiency with at least one relational database (ideally PostgreSQL)
• Understanding of patterns for asynchronous messaging, practical experience with Kafka, experience with Protobuf
• Experience developing libraries and frameworks to promote code reusability across multiple teams.
• Understanding of 12 factor app principles and requirements for cloud native applications
• Practical experience with Kubernetes and ideally experience with Helm
• Experience in finding and fixing bottlenecks in complex distributed systems, experience conducting load and disaster recovery testing
• Experience designing and building applications in microservice architecture
• It'll be nice if you have:
• Interest in ML/AI, willingness to learn how ML frameworks work under the hood
• Optimization of algorithms for massive data processing, parallel computing on GPUs
• Experience with Apache Airflow

We Offer

• The ability to share in the company’s success through options
• Flexible working conditions and the opportunity to work from home 
• £500 (yearly) personal development budget, a progression framework, unlimited access to a fully stocked library and bi-weekly Breakfast and Learns
• A flexible Health & Wellness benefits budget that can be spent on health insurance, physical, and mental health or other needs starting at £50pcm, growing £25pcm for each year of service
• 25 days holiday (in addition to bank holidays) + 1 day for your birthday + 1 day for every year of service up to 5 years
• Contribution to your pension 
• Perks include discounts on cinema tickets, utilities and more
• Lovely office with great classes, events, and a rooftop terrace 
• Regular company socials planned by our great colleagues