We are looking for an experienced Senior Python Engineer for our U.S.-based client specializing in enhancing outbound sales efficiency by providing accurate, real-time contact data and analytics. Their solutions integrate seamlessly with existing sales tools, enabling sales development teams to significantly increase engagement rates and revenue. Experience / Skills required: Must have: 3+ years of experience as Python Developer with a strong background in the development of cloud-native, scalable and robust services Excellent communication skills and diligence at work Expertise in Object-Oriented Analysis and Design (OOA/OOD) Familiarity with frameworks and libraries such as Flask and Google Cloud client libraries (Firestore, Pub/Sub, Cloud Tasks) Experience in automated testing with pytest, unittest, Cloud Firestore/Datastore Emulators, and Pub/Sub Emulator Upper-Intermediate English and better Responsibilities: Collaborate in the design and documentation of services, OpenAPI 2, and (NoSQL) database models Contribute to the writing of effective user stories Implement complex components of the system and design their test coverage We offer: Competitive salary with the regular review Medical Insurance after 3 months probation period (can be used in Ukraine) Vacation (up to 20 working days) Paid sick leaves (10 working days) National Holidays as paid time off (11 days) Online English courses Accountant assistance and legal support Flexible working schedule, remote, office-based or hybrid format Fully-equipped perfect office space located in the city center (ready for work in blackouts) Direct cooperation with the customer Dynamic environment with low level of bureaucracy and great team spirit Challenging projects in diverse business domains and a variety of tech stacks Communication with Top/Senior level specialists to strengthen your hard skills Online/offline teambuildings Volunteering culture development and support Your name Your email Subject Your message (optional)