Ask HN: Who is hiring? (November 2025)

iGent AI | London, UK (Hybrid, 3 days/week) | Multiple Roles | Full-time | https://igent.ai

We're building coding agent systems for large-scale industrial projects, and an agentic cloud.

Why join:

- Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University, multiple PhDs

- Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod.

- Big Tech salary + options.

Open roles (all Senior/Staff; hands-on):

- Full-Stack - design and build new coding agent experiences, working with a top designer

- Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability

- Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events

- LLM inference & post-training - long context tech, RLVR, vLLM, performance

- Devrel & GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption

You might be a fit if:

- 5+ years building and operating production systems (or exceptional evidence).

- Own 0→1 projects; comfortable reading & generating lots of code.

- Public work (OSS/papers/blogs/products) or strong portfolio.

Do apply! https://www.igent.ai/join-us

Unto Labs | San Francisco, CA | ONSITE (Hybrid OK), REMOTE (US) | Full-Time Unto Labs is developing the Thru Layer-1 blockchain (https://thru.org)

We recently announced $14.4 million in funding to make blockchains & digital assets useful for the world. Founded by Jump Crypto alumni and core contributors to the Solana protocol and the Firedancer client (https://github.com/firedancer-io/firedancer), we’re tackling fundamental scalability, performance, and usability challenges in distributed ledgers.

Our runtime conforms to the RISC-V specification—moving away from domain-specific VMs, DSLs, and bespoke compiler toolchains that limit developer and institutional adoption. You can write smart contracts and programs in any LLVM compatible programming language and reason about a standard ISA in RISC-V. Components are developed in C for maximal control over performance and resource usage.

We believe there is a unique window of opportunity to developer fairer, more accessible, and more global financial products on resilient public blockchains.

You can check out our docs and open-source developer tooling at docs.thru.org and https://github.com/Unto-Labs/thru/

We are hiring for the following role(s):

- Systems Engineer: https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

Renaissance Philanthropy | MLE/Full-stack | Remote (worldwide)

Renaissance Philanthropy's aim is to activate a virtuous circle of increasing ambition and impact between philanthropists and innovators: by identifying frontier experts both in science and in new ways of solving problems; by tapping into the growing number of emerging philanthropists; and by building multi-sector initiatives that can harness the power of philanthropy, markets, and governments.

RenPhil's Engineering Hub supports mission-driven, grant-funded educational technology projects that seek to improve educational outcomes in fundamental skills like math and reading. The Engineering Hub consists of data scientists, machine learning engineers, and full-stack developers who collaborate with researchers and entrepreneurs to build scalable, measurably effective tools for teachers and students.

We’re looking for folks who:

- can speak the languages of both research and engineering

- are creative problem solvers

- are comfortable with navigating ambiguity

- want to help create a world where all children receive a high-quality education.

If this sounds like you, please apply!

https://www.renaissancephilanthropy.org/careers

Sumble is the newco from the founders of Kaggle. We are hiring a designer engineers (full stack, FE, data engineers, machine learning/ai). Can view our roles and apply here: https://apply.workable.com/sumble-inc/

As background, we are building a knowledge graph from web data with a first focus on data for go-to-market teams. We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.

Our long-term vision is to become the primary destination for accessing high-quality web data. Try the product at sumble.com.

We are a team of 17, including 12 engineers with experience at companies such as Google, Meta, Stack Overflow, and Kaggle.We just announced a $38.5MM financing: https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...

HouseAccount | https://www.houseaccount.com/ | AI Engineer | Full-time or Part-time | Remote only (Eastern Time USA)

Say you have a broken pipe, a door to replace, a TV to mount. How easily can you find a handyman to get it done? At HouseAccount we want to harness the power of AI to improve the home services space.

Currently we integrate with OpenAI Platform to ask follow-up questions so handymen can get a thorough description of the issue and provide a quote right away. I am looking to hire a developer to make this integration even smarter, anything from image recognition to recommender systems.

I am the sole developer and I'm looking to be joined by someone autonomous and with a lot of energy. You will be responsible for tinkering with existing LLM models (how to rewrite the prompt to balance tokens and speed?) and for coming up with your own innovative solutions (can a homeowner take a picture of a broken pipe and get an instant quote and availability?).

We are a startup, which means you will work autonomously and you will own the pipeline without any "corporation bureaucracy". Your task is to build something innovative where the outcome speaks for itself.

If this sounds like you, submit your application to https://job-boards.greenhouse.io/houseaccount/jobs/495978200... Written communication skills are paramount so a cover letter is expected. Include "HackerNews" to get screening priority.

Thanks.