Senior Platform Engineer — Scale & AI-Driven Infra

Preply; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Benefits offered by this job

Monthly lessons allowance on Preply

Learning & Development budget

Equity

Leave allowance

Job summary

Preply is seeking a Senior Platform Software Engineer in London to join our hybrid-enabled Engineering team. You will work on a wide range of platform services, tooling, and core infra that keep high-traffic systems reliable and scalable.

You will own availability, improve observability, and drive automation while collaborating with product teams to design robust systems. The role requires strong Python coding, AWS exposure, and a data-driven mindset.

Qualifications

• Extensive experience (~8 years) in designing, building, maintaining and troubleshooting high traffic distributed systems.
• Proficient software engineering skills with Python and strong coding abilities.
• Experience with at least one major public cloud (preferably AWS) and strong observability tooling.
• Willingness to participate in paid on-call rotations and data-driven decision making.
• Nice to have: knowledge of modern web frameworks; SQL and relational DBs.

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 the overall software development.
• Practice sustainable incident response and blameless postmortems.
• Collaborate with product teams to help them tackle technical issues and design new systems.
• Strengthen credibility with the quality of the team's technical execution.

Skills

Distributed systems design

Python

AWS

Observability

On-call rotations

English B2

Tools

AWS

SQL

Job description

Preply is seeking a Senior Platform Software Engineer in London to join our hybrid-enabled Engineering team. You will work on a wide range of platform services, tooling, and core infra that keep high-traffic systems reliable and scalable.

You will own availability, improve observability, and drive automation while collaborating with product teams to design robust systems. The role requires strong Python coding, AWS exposure, and a data-driven mindset.