Description:

PostHog is seeking a Backend Engineer for their Feature Flags team, with a focus on building systems that respond in single-digit milliseconds at scale.
The position is fully remote, available to candidates in time zones between GMT-8 and GMT+2.
The engineer will own the entire service from end-to-end, including design, build, deployment, and scaling of the feature flags evaluation engine.
The role involves working with cutting-edge technology, including Rust for the evaluation engine and Python/Django for the application layer.
Responsibilities include building and maintaining the feature flags evaluation engine, making high-level architecture decisions, optimizing performance, and collaborating with customers to implement complex targeting rules.
The ideal candidate should have experience with high-throughput, low-latency services and a passion for clean architecture and observability.

Requirements:

Candidates must have experience with any systems programming language and/or backend web frameworks, with a preference for Python and Rust.
Experience in building systems that handle high volumes of requests/data (millions+ per minute) is required.
The ability to quickly choose a sensible architecture and ship it efficiently is essential.
A strong understanding of performance optimization techniques, caching strategies, and distributed systems principles is necessary.
Nice to have: experience with feature flag systems or similar real-time decision engines, incident management, infrastructure provisioning and deployment, benchmarking and profiling tools, and knowledge of observability systems and practices.

PostHog offers generous and transparent compensation along with employee-friendly equity options.
Employees enjoy unlimited time off with a minimum of 25 days, with an average of 32 days taken in 2021.
Private medical insurance, including dental and vision, is provided for employees in the US and UK.
The company offers pension/401k contributions with 4% matching.
Generous parental, bereavement, and child loss leave are included.
A training budget and free books are available for professional development.
Employees receive a $200/month budget for co-working or café working and $300/month for team socials.
Mental health support is provided through Spill mental health chat.
A $100/month budget is allocated to support open-source projects.
PostHog will act as the first investor for employees' projects.
Regular team off-sites are organized, with carbon offsetting for work travel.