OCaml Developer
Listed on 2026-08-06
-
Software Development
Ahrefs is looking for a backend developer with deep understanding of networks, distributed systems, OS fundamentals and taste for simple and efficient architectural designs. Our backend is mostly implemented in OCaml with some C++.
This role is based out of one of our offices — Palo Alto, Cambridge (MA), Singapore or Tokyo. You can be based in whichever of these you have the legal right to work in, but this is an on-site role: we're looking for someone who'll be in the office with the team.
In this role, be prepared to deal with 25 petabytes of live data, OCaml and Linux on a daily basis.
- Knowledge of C++ is a plus but not essential
- Independently deal with bugs, schedule tasks and investigate code
- Make well-reasoned technical choices and take responsibility for them
- Understand the whole technology stack at all levels: from network and user-space code to OS internals and hardware
- Handle full development cycle of a single component i.e. formalize task, write code and tests, setup and support production, resolve user requests
- Approach problems with a practical mindset and suppress perfectionism when time is a priority
- Write flexible, maintainable code and adapt to post-launch requirements/tweaks
These requirements stem naturally from our approach to development with fast feedback cycle, highly-focused personal areas of responsibility and strong tendency to vertical component splitting.
If your preference is leaning towards making the web functional and working on user-facing stuff, you may want to consider ourReasonML position instead.
What You GetWe offer:
- Competitive compensation package
- Informal and thriving work atmosphere
- Above-average perks and fringe benefits
- First-class workplace (hardware, software, etc) in the modern office
Location:Palo Alto, Cambridge (MA), Singapore or Tokyo — on-site
Ahrefs does not engage with agencies or third party recruitment solutions for the roles we hire for. If at any point we need help, we'll let you know!
Apply for this job*
indicates a required field
First Name *
Last Name *
Email *
Phone
Country
Phone
Resume/CV *
Enter manually
Accepted file types: pdf, doc, docx, txt, rtf
Enter manually
Accepted file types: pdf, doc, docx, txt, rtf
Linked In Profile (full URL)
Github Profile (full URL)
Website
Please share your work portfolio link, if you have one.
This role is office-based. There is no remote or hybrid option. You would work on-site from one of our offices:
Palo Alto (California), Cambridge (Massachusetts), Singapore, or Tokyo. Are you able to work on-site, full-time, from one of these offices?
* Select...
Which office would you be based in? *
Cambridge, Massachusetts, United States
Tokyo, Japan
I need to work remotely
If you are open to which office you can be based from, tick any that apply.
Do you have the legal right to work in the office location(s) you selected above?
* Select...
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).