Sr Backend Engineer



Software Engineering
Boulder, CO, USA · Multiple locations · Remote
Posted on Saturday, April 20, 2024
Engineering · Buenos Aires, Bogotá · Fully Remote

Sr Backend Engineer

About us:

Modak, a US-based fintech platform, that leverages the power of fintech, gamification, and community to empower kids, enabling them to reach their full potential. We offer a comprehensive financial ecosystem for kids - featuring a Visa debit card and a fun fintech app to help them save and manage their money while getting financial education. Moreover, parents can manage their children's finances, assign chores, send money, and more through Modak.

As one of the most well-funded early-stage startups, we express gratitude for $19 million USD in funding, even in this turbulent market. Our investors include GGV Capital, Nazca, Monashees, One VC, Maya Capital, and 30 other leading angel investors and VCs in the US and Latin America.

Responsibilities and qualifications:

We want to highlight that not everybody has all the skills that match a job description. None of us did! We value diverse experiences and while having the desired qualifications make for a strong candidate, we encourage applicants with alternative experiences to also apply. Every qualified applicant will be considered within the employment process. We strive for a diverse, inclusive workplace environment. Here's more about our team's thinking on this topic.


  • Build new API services that support the product vision.
  • Support the architecture design and implementation for the medium/long term vision.
  • Evaluate and integrate new providers working with third-party APIs and partners.
  • Proactively working with product, UX, GTM teams.
  • Proactively suggest improvements on the internal services based on data that positively impact our customers and business.
  • Help teammates by mentoring, guiding, and positively influencing them.
  • Collaborate with a diverse group of people, giving and receiving feedback for growth.


  • Solid experience working with highly scalable large distributed systems, relational and/or document databases, data pipeline systems, and frameworks to build high-performance RESTful web services.
  • Experience developing systems that handle sensitive information using encryption and signature verification, and that are PCI DSS compliance
  • Knowledge of banking concepts like reconciliation, ACH transactions, double-entry accounting, etc
  • Experience developing or integrating issuer processors and other banking infrastructure components.
  • Very deep knowledge in at least one backend programming language in which one can be called an expert (Golang, Java, Python, Net).
  • Very well versed on what makes a good REST API.
  • Experience designing, building and supporting critical user-facing systems.
  • Excellent experience writing automated tests on any level (unit, integration, e2e, chaos, etc).
  • Strong cross-team communication and collaboration skills. Work with your team towards common goals.
  • A healthy ability to handle and resolve conflict - have the ability to listen, present, and question effectively.
  • Knowledge of processes and engineering best practices in all phases of the software development process.
  • Excellent written and verbal communication skills - confident in writing down and presenting their designs and decisions throughout the development lifecycle.
  • Comfortable providing and receiving feedback in an Agile environment.
  • Strong customer advocate and creative problem solver.
Backend Engineer
Buenos Aires, Bogotá
Remote status
Fully Remote
Employment type

About Modak

Modak is a US-based platform leveraging the power of fintech, gamification, and community to empower teens to reach their full potential.

Founded in 2022
Coworkers 50
Engineering · Buenos Aires, Bogotá · Fully Remote

Sr Backend Engineer

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