Junior Back End Developer; Ruby

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At Sensor Tower, we don’t just want you to write code; we want you to build the technical and product ownership that makes your work meaningful. We are looking for a talented Junior Back End Developer to join a high-priority strategic initiative.

In this role, you will build systems to track and analyze how major conversational Large Language Models (LLMs) perceive apps, brands, and digital entities. You will join a high-performing team to launch and quickly iterate on this new product, with high expectations for your work paired with a strong emphasis on fast career development and growth. We have a strong track record of leveling up talented juniors quickly, and this role offers a rare opportunity to pair closely with senior leadership on a greenfield project.

We believe that "Simplicity is a prerequisite for reliability." We are looking for engineers who align with our core values:

• Simplicity: We avoid over-engineering. We prefer the tools we already have and the most straightforward solutions over "shiny new toys."
• Quality: We write code that is a pleasure to read because we know code is written once but read many times. We don't cut corners, and we polish to a high level before shipping.
• Extreme Ownership: We don't just do the minimum. We expect you to understand the "why" behind your work and own the ultimate goal of fixing problems at their root cause, avoiding temporary band-aids.
• Prioritization: We focus relentlessly on what is important, not just what is urgent.

• Build New Insights Features:
  You will build and maintain reliable, high-performance pipelines to aggregate and analyze data from various AI models.
• Own the Full Development Lifecycle:
  You will participate in the complete development lifecycle through design, implementation, and release.
• Collaborate Cross-Functionally:
  You will work closely with cross-functional teams, ensuring you understand the end-to-end process to design the correct systems.
• Drive Future Strategy:
  Long term, you will work on additional strategic engineering projects to continuously make a business impact and grow our footprint.

• Stack Alignment: Preferred:
  Knowledge of Ruby on Rails and the broader Ruby ecosystem is a large plus. Alternatively, demonstrated proficiency in Python or similar languages, with a willingness to cross‑train in Ruby, is acceptable.
• Nice‑to‑have:
  
  Experience with Clickhouse or other OLAP databases;
  Mongo
  
  DB or other document stores;
  Sidekiq or other asynchronous task runners.
• Technical Foundation: A strong grasp of algorithms, RESTful systems, and API design. Experience with data analysis and data pipelining is ideal.
• Github/Portfolio: A portfolio of meaningful Github contributions, open-source work, or interesting personal projects that demonstrate you can build working software.
• Curiosity & Drive: A proactive approach to digging into sources yourself rather than relying on second‑hand…