Senior Platform SRE: Reliable, Scalable Observability

Whereby; Greater London; On-site; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Lesson allowance

Learning & Development budget

Equity

Leave allowance

Job summary

Preply is seeking a Senior Platform Software Engineer for the SRE team to own availability and performance of mission-critical services, and to lead on-call and incident response.

You will build tooling, improve observability, and drive platform scalability in collaboration with product teams, while lowering costs and improving developer productivity.

The ideal candidate has around 8 years of distributed systems experience, strong Python, AWS expertise, and excellent communication in English (C1).

Qualifications

• Extensive experience (~8 years) in designing, building, maintaining and troubleshooting high-traffic distributed systems.
• Proficient Python software engineering skills.
• Strong English communication at C1 level.

Responsibilities

• Own the availability and performance of mission-critical services and build automation to prevent problems recurrence.
• Improve the system’s scalability, observability, and alerting.
• Build tooling to improve our platform and accelerate software development.
• Practice sustainable incident response and blameless postmortems.
• Collaborate with product teams to help tackle technical issues and design new systems.
• Strengthen credibility with the quality of the team's technical execution.
• Follow the best FinOps practices.
• Participate in on-call rotation across the team.

Skills

Distributed systems design

Python

English proficiency (C1)

On-call experience

AI with Agentic AI

Tools

AWS

Job description

Preply is seeking a Senior Platform Software Engineer for the SRE team to own availability and performance of mission-critical services, and to lead on-call and incident response.

You will build tooling, improve observability, and drive platform scalability in collaboration with product teams, while lowering costs and improving developer productivity.

The ideal candidate has around 8 years of distributed systems experience, strong Python, AWS expertise, and excellent communication in English (C1).