> Markdown version of [/jobs/ext/2607186-senior-software-engineer-i-ruby-on-rails-with-sidekiq](https://www.wearedevelopers.com/jobs/ext/2607186-senior-software-engineer-i-ruby-on-rails-with-sidekiq). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Senior Software Engineer I - Ruby on Rails with Sidekiq

- **Company:** RELX Group plc
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Salary:** $86,600.0 - $144,400.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Clinical Data Repository, Relational Databases, Software Debugging, Programming Tools, PostgreSQL, Ruby on Rails, SQL Databases, TypeScript, Data Ingestion, Fast Healthcare Interoperability Resources, Backend, Front End Software Development
- **Published:** August 14, 2026
- **Apply:** https://dejobs.org/x/x/E7A4A6F85B5B4296A1301BACE7FE2B0D/job/

## About the Role

* Current development skills with Ruby on Rails with Sidekiq on AWS (ECS, Aurora PostgreSQL), with a TypeScript frontend.
 * Possess backend fundamentals: queues, retries, transactions, and the failure modes between them.
 * Have real depth in SQL and relational data modeling, and the instinct to check the query plan.
 * Possess End-to-end ownership of production systems, including the unglamorous parts.
 * Have a debugging temperament: patient, methodical, happy in logs.
 * AI-assisted development as a default: coding agents and spec-driven development are already part of how you work

## Description

* Owning platform subsystems end to end: ingestion pipelines, sync reliability, normalization.
 * Keeping the stack healthy: major framework and dependency upgrades, developer tooling, and the CI that keeps a small team fast.
 * Taking of loosely specified problems ("this vendor's FHIR implementation does something strange under load") through diagnosis, design, and durable fixes.
 * Keeping correctness and observability strong as the platform takes on new consumers.
 * Pair with the engineer who built our sync and normalization systems and take ownership of one production pipeline, including its on-call. Your first shipped work will be a piece of the platform API or the internal tooling around it. By month three you'll own a platform surface that other teams depend on.


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