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Data Infrastructure Engineer Intern

Sezzle

Role overview

Qualifications

  • Currently pursuing (or recently completed) a degree in Computer Science, Data Engineering, or a related technical field.
  • Basic understanding of relational databases (MySQL, Postgres, relational concepts) and no sql databases.
  • Familiarity with at least one programming language (Python, Go, or similar).
  • Demonstrated experience working with Claude or equivalent large language model tools.

Responsibilities

  • Assist in maintaining and improving data warehousing systems (AWS DMS, Redshift).
  • Support the team in monitoring data pipelines, identifying issues, and troubleshooting basic problems.
  • Write and optimize SQL queries for analytics and data validation.
  • Identify and automate repetitive daily manual processes, reducing operational overhead and improving team efficiency.

About the company

Sezzle logo

Sezzle

Buy Now Pay Later (BNPL) & Consumer Credit

Sezzle is a payments company on a mission to financially empower the next generation. Sezzle’s payment platform increases the purchasing power for millions of consumers by offering interest-free installment plans at online stores and in-store locations. When consumers apply, approval is instant, and their credit scores are not impacted, unless the consumer elects to opt-in to a credit building feature, called Sezzle Up. This increase in purchasing power for consumers leads to increased sales and basket sizes for the more than 47,000 Active Merchants that offer Sezzle. As the only B Corp in fintech, Sezzle proves that all industries - even payments - can do their part to provide solutions and make a positive impact today and into the future. For more information visit Sezzle.com.

Company details

Company typeScaleup
IndustryBuy Now Pay Later (BNPL) & Consumer Credit
Company size201 - 500

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Job description

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Data Infrastructure Engineer Intern  who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

What You’ll Do:

  • Assist in maintaining and improving our data warehousing systems (AWS DMS, Redshift).
  • Support the team in monitoring data pipelines, identifying issues, and troubleshooting basic problems.
  • Write and optimize SQL queries for analytics and data validation.
  • Collaborate with engineers and analysts to understand data needs and support use cases.
  • Participate in testing, documentation, and improving reliability of data systems.
  • Identify and automate repetitive daily manual processes, reducing operational overhead and improving team efficiency.
  • Learn and explore new tools and technologies in the data ecosystem.

What We Look For:

  • Currently pursuing (or recently completed) a degree in Computer Science, Data Engineering, or a related technical field.
  • Basic understanding of relational databases (MySQL, Postgres, relational concepts) and no sql databases. 
  • Familiarity with at least one programming language (Python, Go, or similar).
  • Interest in data infrastructure, distributed systems, or backend engineering.
  • Strong problem-solving skills and willingness to learn.
  • Ability to work in a collaborative team environment.
  • Demonstrated experience working with Claude or equivalent large language model tools is required; candidates must be comfortable leveraging AI to enhance productivity, research, and communication.
  • Leveraged AI tools such as Claude to accelerate development workflows, troubleshoot complex technical issues, and enhance productivity.

Preferred Knowledge and Skills:

  • Exposure to cloud platforms (AWS preferred).
  • Basic understanding of data pipelines or ETL concepts.
  • Awareness of data warehousing concepts.
  • Interest in big data or streaming technologies (Kafka, Kinesis Streams, Flink etc.)

About You:

  • You’re curious and proactive - you ask questions and seek to understand how things work.
  • You take ownership of your learning and follow through on tasks.
  • You’re open to feedback and eager to improve.
  • You communicate clearly and work well with others.
  • You’re excited to build real-world skills in data engineering.

Sezzle’s Technology Stack:

  • Languages: Golang, Typescript, Python
  • Frontend: Typescript - React and React Native
  • Backend: Golang
  • Database: MySQL, Postgres, Elasticsearch, Redshift
  • DevOps & Cloud: AWS, Kubernetes
  • Version Control: Git
  • CI/CD: Gitlab
  • Testing: Developer and AI-driven, focus on automated end-to-end, integration, and unit tests
  • Open Source: We build before we buy whenever possible

What Makes Working at Sezzle Awesome:

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators. We believe in surrounding ourselves with only the best and the brightest individuals. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

Compensation: The salary for the Data Infrastructure Engineer Intern is $2.800.000 COP monthly. 

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Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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