Senior Backend Engineer joining agile product teams at John Lewis Partnership. Building new features using Kotlin or Java and mentoring less experienced Engineers in a hybrid working environment.
About the role
- Backend Engineer on a Product Team at an AI startup to build the database layer for generative AI products. Focus on PostgreSQL and ClickHouse for high-performance data management.
Responsibilities
- Design, iterate, and implement the backend data layer powering our products;
- Own the architecture and operation of high-availability, high-throughput PostgreSQL systems;
- Build and maintain ClickHouse pipelines for analytics and large-scale event data at production scale;
- Develop high-quality Rust software, with elevated standards of performance and robustness;
- Define systematic processes for data modeling, schema evolution, and reliability across our stack;
- Contribute to our product roadmap, aligning the needs of our Commercial Team with the latest advancements from our Technical Team;
- Report clearly on your work to a distributed collaborative team, with a bias for asynchronous written communication.
Requirements
- Significant experience in backend or infrastructure software development;
- Deep, hands-on expertise with PostgreSQL at scale — replication, failover, connection pooling, query optimization, and schema design under high transactional load;
- Production experience with ClickHouse — ingestion pipelines, data modeling for analytical workloads, and performance tuning at scale;
- Strong software engineering skills, with a focus on robustness and performance;
- A track record of shipping ambitious technical products under tight deadlines;
- A deep concern for user experience, and how data infrastructure choices manifest in product quality;
- Passionate about the future of generative AI, and eager to build foundational technology to help machines deliver more singular experiences.
- Comfortable leveraging AI-assisted programming tools (e.g. Cursor, Claude Code, or similar) as part of an established personal workflow to ship faster and with greater confidence.
- Experience with observability tooling — monitoring, alerting, and distributed tracing (e.g. Prometheus, Grafana, OpenTelemetry) — is a plus.
Benefits
- Comprehensive medical (health, dental, and vision) insurance for you and your dependents;
- 401(k) plan with 4% matching (or local equivalent);
- Unlimited PTO — we strongly encourage at least 5 weeks each year;
- Wellbeing and personal development stipends;
- Quarterly team offsites and frequent get togethers;
- Visa sponsorship if you wish to relocate to New York or Paris.
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
No Education Requirement
Tech skills
Location requirements
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