Description
Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences.
Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce.
We are looking for a Senior Engineer to join the team that enables the core technologies that Fin is built on.
What’s the opportunity?
We are looking for a Senior Engineer to join the team that enables the core technologies that Fin is built on. This role is especially compelling for engineers who enjoy scaling Elasticsearch in production and who also like working across adjacent systems such as MySQL, ingestion pipelines, and owning how they operate from low level systems engineering to all parts of our Rails and monolith.
What will I be doing?
- Own high-impact work on Elasticsearch at scale, including index design, shard and partitioning strategy, cluster health, performance tuning, safe migrations, and operational excellence.
- Collaborate with world-class domain experts to shape our technical direction and infrastructure as we grow.
- Deeply own aspects of our infrastructure at Fin and autonomously executing on high impact projects - including writing application code, automating systems, improving observability and low-level tuning of datastores used in production, test and development across Fin.
- Value agility and simplicity, just as you prioritise scalability and uptime.
- Contribute to all phases of software development including ideation, prototyping, design and implementation.
- Play an active role in the hiring, mentoring, and career development of other engineers.
What skills do I need?
- Excellent pragmatic engineering skills.
- 5+ years experience in a production environment, with contributions to the design and architecture of distributed systems.
- Strong experience with at least one major production datastore or search system, with Elasticsearch being especially relevant for this role.
- Good judgment around Elasticsearch in real-world systems, such as index and mapping design, cluster operations, scaling patterns, performance tuning, or migrations.
- Expertise in backend technologies such as MySQL, Memcached, as well as Linux.
Benefits
We are a well treated bunch, with awesome benefits!
- Competitive salary and equity in a fast-growing start-up
- We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
- Regular compensation reviews - we reward great work!
- Unlimited access to Claude Code and best-in-class AI tools; experimentation & building is encouraged & celebrated.
- Pension scheme & match up to 4%
- Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
- Flexible paid time off policy
- Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones
- If you’re cycling, we’ve got you covered on the Cycle-to-Work Scheme. With secure bike storage too
- MacBooks are our standard, but we also offer Windows for certain roles when needed.