Principal IC Engineer – Ruby & Python (Architecture & Strategy Focus)
Principal IC Engineer – Ruby & Python (Architecture & Strategy Focus)
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Managing Director at Niche Recruitment - Ruby on Rails SpecialistsFounder of Rails Supper Club
Principal IC Engineer – Ruby & Python (Architecture & Strategy Focus)
Location: Hybrid – Kings Cross, London (2–3 days/week onsite, flexibility required)
Employment Type: Full-time
Salary: Dependent on experience - circa £125,000/ year.
About the Role
We’re seeking a Senior IC Engineer with deep expertise in Ruby and Python to join our core technical team. This is a purely technical, hands-on role — no line management or leadership of teams — where you'll act as a technical strategist and problem solver, working closely with their CTO to shape and implement critical architectural decisions.
Key Responsibilities
* Lead architectural and design discussions across core backend systems, primarily built in Ruby and Python.
* Drive technical decision-making and contribute to strategic technology choices, balancing short- and long-term goals.
* Partner directly with the CTO to evaluate new technologies, define system design standards, and align engineering efforts with business priorities.
* Solve complex, systemic technical challenges that affect performance, scale, and maintainability.
* Contribute high-quality, maintainable code — this is a hands-on coding role.
Who You Are
* You’ve worked at senior IC level or principal engineer level before, and you're used to operating as the go-to technical expert.
* Hands-on architect: You’ve designed and evolved technical architectures across multiple systems or teams.
* Skilled at navigating trade-offs in system design and making high-impact technical decisions under ambiguity.
* Comfortable interacting with senior stakeholders (CTO, product, business leadership) and contributing to technical strategy at the executive level.
Hybrid Working – Kings Cross Office
This is a hybrid role based out of their Kings Cross, London office. Our client typically ask for 2–3 days per week onsite, but they are flexible — some weeks may be more, some less. They're looking for someone who sees value in in-person collaboration and wants to contribute to a strong onsite engineering culture.
Seniority level
* Seniority level
Mid-Senior level
Employment type
* Employment type
Full-time
Job function
* Job function
Information Technology
* Industries
Technology, Information and Media
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