Jobs at 9fin

31 open positions at 9fin. Updated October 2026.

9fin currently has 31 open roles (on-site). Hiring locations include London, London, United Kingdom, New York, United States. Frequently requested skills include python, llm, terraform, fastapi, flask.

Website: https://4dayweek.io
Open roles: 31

About 9fin

4dayweek.io is a job board dedicated to helping job seekers find roles at companies committed to better work-life balance, including 4-day weeks, 9-day fortnights, flexible schedules, and more. The platform lists thousands of jobs and verifies each company's schedule policy before listing. It also offers an Auto Apply feature (JobCopilot) that auto-applies to 500,000+ verified career pages. The site features job listings by category, location, and schedule type, and provides resources like pros and cons of the 4-day work week.

Open Roles at 9fin

What 9fin Hires For

Browse 9fin openings alongside similar roles at other companies:

Senior & Staff Engineer Jobs (23) Backend Developer Jobs (19) DevOps / SRE Jobs (17) Frontend Developer Jobs (14) Full Stack Developer Jobs (13) Data & ML Engineer Jobs (13)

Open Roles at 9fin by Category

Platform Engineer (4) Forward Deployed Investor (4) Forward Deployed Banker (4) Backend Engineer (4) AI Engineer (3) Platform Engineer - Developer Experience (2)

9fin Jobs by Location

London (14) London, United Kingdom (13) New York, United States (2) New York (2)

9fin Jobs by Type

full_time (16) hybrid (15)

Skills & Technologies at 9fin

Based on the skills most frequently listed in current 9fin job openings:

python llm terraform fastapi flask postgresql aws bash linux crewai langchain langgraph

How to Apply for Jobs at 9fin

All 9fin openings listed above are aggregated from the company's official careers channels and updated October 2026. To apply, open any role that matches your profile and use the Apply Now button — it takes you directly to 9fin's official application page, so your application always goes to the employer itself, with no middleman.

Before applying, tailor your CV to the specific role: mirror the job title, highlight the skills and technologies mentioned in the listing (for 9fin, commonly python, llm, terraform, fastapi, flask, postgresql, aws, bash, linux, crewai, langchainlanggraph), and quantify your impact where possible. You can also save interesting roles to your JobSeek account to track deadlines and compare offers side by side.

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