or apply directly on Fin's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 82 days Fin's roles stay open a median of 82 days
- Reposted
- No
- Salary listed
- No 28% of Fin's roles list one
- Ghost-job risk at Fin
- high 130 stale, 0 reposted of 130 open
- Hiring momentum
- 162 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-24
Measured from postings appearing on and disappearing from Fin's own greenhouse board since 2026-08-03. Full hiring picture for Fin.
About this role
The Senior Core Technologies Engineer at Fin will focus on scaling and optimizing Elasticsearch in a production environment while collaborating with various teams to enhance the core technologies that support the AI Agent, Fin. Responsibilities include owning high-impact projects related to infrastructure, contributing to software development phases, and mentoring other engineers. The role emphasizes operational excellence and the continuous improvement of systems to support a growing user base.
- benefits
- 1/5
- freshness
- 1/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Fin as an employer.
What you need
- 5+ years experience in a production environment with contributions to the design and architecture of distributed systems
- Strong experience with Elasticsearch and at least one major production datastore or search system
- Expertise in backend technologies such as MySQL and Linux
- Proficient with standard software engineering methodologies including unit testing and code reviews
- Experience as a technical lead for large multi-quarter projects
- Ability to learn quickly and solve complex problems
Nice to have
- Experience supporting scaling a SaaS product
- Good judgment around Elasticsearch in real-world systems
- Understanding of modern web apps and distributed systems
Worth weighing
- No specific salary information provided
- The role requires being in the office at least three days per week due to a hybrid working policy
- Emphasis on operational excellence and scalability may indicate a focus on performance over innovation
Summarised from Fin's posting. Read the full original.
Listed by Fin on their greenhouse job board, last confirmed open on 2026-10-24. PitchMeAI is not the employer.
More roles at Fin
- Account Executive, MidMarketDublin, Ireland
- Account Executive, MidMarketLondon, England
- IT Systems EngineerSan Francisco, California
- Senior Software EngineerDublin, Ireland
- Senior Sales Manager, Continental EuropeDublin, Ireland
- Senior Data Scientist - Product AnalyticsLondon, England
- Senior Product EngineerLondon, England
- Engineering Manager, AI Models InfrastructureDublin, Ireland; London, England