Would you like to work on one of the world's largest transactional distributed systems? How about working with customers and peers from the entire range of Amazon's business on cool new features? Whether you're passionate about building highly scalable and reliable systems or a software developer who likes to solve business problems, Tax e Commerce Services (eCS) is the place for you. As a Senior Engineer in the eCS Tax Engine, you will have the opportunity to build the foundational frameworks that will drive Amazon e Commerce business. You will be at the forefront of developing the next generation tax computation system for Amazon and will be truly leading the way to disrupt the way we do accurate tax computation across our e Commerce ecosystems.

We are looking for a Senior Software Development Engineer who will be a leader, builder and operator to drive the evolution of Calculation systems. You will design, architect and build innovative technology solutions that will reduce time to market, standardize execution and scale for expansion world-wide. You will work on all aspects of the software development, however, focus on the hardest problems around modelling, scalability, experience, self-service on-boarding + operation tools, and more. You will help establish technical standards and drive the overall technical architecture and engineering practices. You will think globally when designing and building the software, ensuring the software is evolving in the right long-term direction while bringing value to customers iteratively.

Key job responsibilities

1. Serve as a technical lead on our most demanding, cross-functional projects.
2. Ensure the quality of architecture and design of systems.
3. Functionally decompose complex problems into simple, straight-forward solutions.
4. Fully and completely understand system interdependencies and limitations.
5. Possess expert knowledge in performance, scalability, enterprise system architecture, and engineering best practices.
6. Leverage knowledge of internal and industry prior art in design decisions.
7. Effectively research and benchmark Amazon technology against other competing systems in the industry.
8. Contribute intellectual property through patents.
9. Assist in the career development of others, actively mentoring individuals and the community on advanced technical issues and helping managers guide the career growth of their team members.
10. Exert technical influence over multiple teams, increasing their productivity and effectiveness by sharing your deep knowledge and experience.

About the team
eCS Tax engine is responsible for classifying, calculating, and storing accurate Tax and regulatory fees for billions of transactions that are conducted on Amazon across all marketplaces. We provide the core services that computes an accurate tax that adheres to the compliance laws of the land, and create tax audit records which are used to generate invoices and filed with the respective Tax authorities. We thrive on providing the accurate tax and regulatory fees information during entire customer journey, and make sure audit records are stored safely to meet tax law requirements around the globe. Our challenges include scaling to the growing demand of Amazon businesses, anticipating and adapting to the upcoming compliance rules and enhancing capabilities to fuel growth of various Amazon business lines.

Basic Qualifications

• Bachelor's degree in computer science or equivalent
• 5+ years of non-internship professional software development experience
• 5+ years of programming with at least one software programming language experience
• 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
• Experience as a mentor, tech lead or leading an engineering team

Preferred Qualifications

• 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

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