Data Engineer, Payfort

Amazon

Leading global technology company specializing in e-commerce, cloud computing, and digital streaming services.

Chennai, Tamil Nadu, India

Data

Entry-Level Software Engineer

In-Person

1+ year of experience

Finance

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Description For Data Engineer, Payfort

Amazon Payment Services (APS) is seeking a Data Engineer to join their team in building the next generation of online payment systems. APS is a leading payment service provider in the MENA region, operating across 8 countries and serving thousands of merchants. The role involves working with systems that process payments for over 100 million customers, handling tens of billions of dollars annually with high accuracy, speed, and availability.

As a Data Engineer, you'll be at the forefront of innovation in payment solutions, working on systems that support multiple countries and payment methods. The role encompasses various payment functionalities including currency choice, in-store payments, pay on delivery, credit and debit card payments, seller disbursements, and gift cards.

The position requires strong technical skills in data engineering, particularly in SQL and scripting languages. You'll be working with various query languages and data modeling tools, while maintaining operational excellence and enhancing core infrastructure. The ideal candidate should have experience with ETL pipelines and data warehousing, with preferred knowledge of big data technologies like Hadoop, Hive, and Spark.

This is an excellent opportunity to join Amazon's prestigious payment services team, where you'll contribute to mission-critical systems that power global commerce. You'll work in a collaborative environment, partnering with both technical and non-technical teams to design and execute strategic roadmaps. The role offers the chance to work on challenging problems at scale while being part of Amazon's innovative culture and growth in the payment services sector.

Last updated 4 months ago

Responsibilities For Data Engineer, Payfort

Managing data requests
Maintaining operational excellence
Enhancing core infrastructure
Collaborating with technical and non-technical teams
Design and execute roadmaps

Requirements For Data Engineer, Payfort

Python

1+ years of data engineering experience
Experience with SQL
Experience with data modeling, warehousing and building ETL pipelines
Experience with one or more query language (SQL, PL/SQL, DDL, MDX, HiveQL, SparkSQL, Scala)
Experience with one or more scripting language (Python, KornShell)

Amazon

Leading global technology company specializing in e-commerce, cloud computing, and digital streaming services.

Chennai, Tamil Nadu, India

Data

Entry-Level Software Engineer

In-Person

1+ year of experience

Finance

Amazon

Furthest Point From Origin

Data Structures & AlgorithmsEasy

You are given a string moves of length n consisting only of characters 'L', 'R', and '_'. The string represents your movement on a number line starting from the origin 0. In the ith move, you can choose one of the following directions: move to the left if moves[i] = 'L' or moves[i] = '_' move to the right if moves[i] = 'R' or moves[i] = '_' Return the *distance from the origin* of the *furthest* point you can get to after n moves. Example 1: Input: moves = L_RL__R Output: 3 Explanation: The furthest point we can reach from the origin 0 is point -3 through the following sequence of moves LLRLLLR. Example 2: Input: moves = R__LL Output: 5 Explanation: The furthest point we can reach from the origin 0 is point -5 through the following sequence of moves LRLLLLL. Example 3: Input: moves = _ Output: 7 Explanation: The furthest point we can reach from the origin 0 is point 7 through the following sequence of moves RRRRRRR.

Strings

Greedy Algorithms

Amazon

How would you implement a service like Twitter?

System DesignHard

Let's design a Twitter-like service. Consider the following: Core Functionality: How would you implement the ability for users to post tweets, follow other users, and view a timeline of tweets from the users they follow? Data Model: What database schema would you use to store tweets, user information, and follower relationships? Consider scalability and efficiency for reads and writes. Scalability: How would you handle a large number of users and tweets? Discuss strategies for sharding, caching, and load balancing. Real-time Updates: How would you ensure that users see new tweets in their timeline in near real-time? Consider using technologies like WebSockets or Server-Sent Events. Search: How would you implement a search feature that allows users to find tweets containing specific keywords or hashtags? Think about indexing strategies and search algorithms. Rate Limiting: How would you prevent abuse and ensure fair usage of the service? Describe your approach to rate limiting API requests. Example Scenario: Imagine a user, Alice, follows 1,000 other users, including Bob. Bob posts a tweet. Explain how that tweet would propagate to Alice's timeline, considering potential performance bottlenecks. Technology Stack: What technologies (programming languages, frameworks, databases, etc.) would you choose and why?

Database Problems

Graphs

Arrays

Strings

Amazon

Tell me about yourself

Behavioral

Tell me about yourself. To give you some guidance, please share information beyond just your resume. For example, what are you passionate about, what motivates you, and what are some of your long-term career goals? Think about some significant accomplishments you are proud of and how those experiences have shaped you. What makes you a unique candidate and a good fit for our company, beyond your technical skills? I'm looking for a comprehensive overview of who you are, both professionally and personally.

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