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Ask HN: Who is hiring? (April 2026)

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Re: Ask HN: Who is hiring? (April 2026)

#161
Hiring for several roles at Distark, an edutainment brand building learning videos for Education. Our small, passionate team creates animated shows and learning tools that help kids (ages 3-12) fall in love with curiosity and real-world learning. We use custom automation to speed up everything from story writing to animation. See what we’re making: https://www.youtube.com/watch?v=c46VaM_VZGU

Open Roles (REMOTE, non US):

Animators (2D/3D or hybrid—experience with AI tools a plus) Writers Programming interns

Why join us?

Fully remote, async-friendly Ship real things that impact how kids learn Fast, creative, zero-corporate-BS environment

Direct access to founders; real ownership

Opportunity to shape our tools and shows from the ground up

To apply: Email jobs [at] studyturtle.com with your background, a few sentences about why edtech is important to you, any feedback on our episodes, and why this mission excites you. Please include links to any relevant work.

We are the hiring company and will reply to all genuine applicants. No recruiters, no agencies, please.

Re: Ask HN: Who is hiring? (April 2026)

#162
Numeral | Software Engineer (full-stack, AI team) | Hybrid (NYC) | $175k - $300k

We build sales tax compliance software so companies can focus on their product instead of taxes. We’re one of the fastest-growing players in the space, taking share from incumbents like Avalara.

We’re a small, high-ownership team. My team in particular is applying AI (agents + workflows) to automate and dramatically reduce operational overhead.

What you’ll do:

- Build product + AI infra across the stack

- Work on AI-driven systems (agents, orchestration, internal tooling)

- Ship quickly with real user impact, both internally and externally

If interested, can send resume directly to jerry@numeralhq.com and I'll fast track!

Job description: https://www.numeral.com/careers?ashby_jid=26400013-a45f-4504...

Cheers,

Jerry (Engineering Manager)

Re: Ask HN: Who is hiring? (April 2026)

#163
Bubblehouse | Fully REMOTE | Full-Time | $200–250k | Principal Engineer

Bubblehouse is a fast-growing custom loyalty platform, tripling the revenue each year. Headquartered in NYC, the entire team is fully remote and spread across the globe. We power loyalty programs for brands like American Girl and Old Spice.

We’re expanding our lean team of extremely experienced developers. Companies are switching from other platforms thanks to the customizations and flexibility that we offer, enabled by our pace and technical excellence, which we intend to keep for years to come.

We run on Golang and use custom data storage on top of local key-value stores, colocating the storage and compute on dedicated hardware servers, and reading data directly from mmap’ed pages of the database. Ever came across HN saying that one can run Twitter on a single machine these days? We’re doing that in production.

Zero lines of React, almost zero third-party dependencies (carefully vetted), every line of JavaScript manually written with respect and understanding of the web platform. We render HTML server-side like it’s 2005.

Looking for:

1. Top to bottom understanding of the software stack, from the modern-ish web platform to CPU caches.

2. Thinking and problem solving outside the box. (We don’t _always_ go for unconventional solutions, but we do it often enough to require a person who can do justice considering the entire problem space at every step.)

3. Demonstrated ability and hunger to learn new things quickly. (Every month we’re doing things we have never done before.)

4. Broad experience across multiple programming paradigms, platforms and software stacks.

5. Demonstrated care for the software craftsmanship (which can take many forms).

6. Great spoken English, and ability to communicate 9am to noon in New York time zone.

We give you a literally fast-paced environment (with features delivered in days) where you need to solve very challenging problems with practical advanced technology, take on entrenched market leaders, and help entrepreneurs across small and large businesses delight their fans.

Send a plain text cover letter to andrey+hiring@bubblehouse.com. Help us see how you stand out. Summarize your experience. Link to 1–5 impressive things you’ve built and proud of, link to where we can see some of your code, include your portfolio/CV, describe the platforms and stacks you’re an expert in. How did you start programming? What are you most passionate about in technology? What are the most interesting or weird things you’ve done? What are your strongest held professional opinions? Please make your email easy to read, we’ll appreciate that.

(If you have applied before, no need to re-apply, we’ll reach out.)

Re: Ask HN: Who is hiring? (April 2026)

#164

Assembly | Founding Engineer | New York City, Onsite | Full-Time Assembly is a vertically-integrated, technology-native holding company that acquires industrial real estate. We take an AI-native approach across the full surface area of our business; data-based geography selection, owner outreach, due diligence, deal structuring / scenario analysis, property & tenant management, and more. Our intention is to build one…

Do you sponsor visas?

Re: Ask HN: Who is hiring? (April 2026)

#165
Copper Home | Staff Embedded Systems Engineer | ONSITE (Berkeley, CA)

Copper Home (fka Channing Street Copper) builds battery-integrated induction appliances for home electrification — we're making decarbonization accessible by putting energy storage inside everyday products, starting with the stove.

The firmware team is small and owns application firmware, device connectivity, automated testing, manufacturing tools, and an MQTT backend for OTA updates and fleet telemetry.

We're hiring a staff embedded systems engineer focused core firmware architecture on the Charlie induction range.

In this role, you may:

- Own major pieces of our embedded platform and prototypes of future products.

- Lead improvements to device connectivity (Wi-Fi, BLE, OTA, provisioning, failure recovery) and energy management.

- Evolve fleet management, telemetry, and remote management/update systems with a focus on robustness and cost efficiency at scale.

- Mentor engineers through design reviews and day-to-day technical collaboration.

Tech stack: C and Python; FreeRTOS on ESP-IDF; 802.11, BLE, CAN; MQTT; AWS

Salary: $182k–$210k + equity

Questions? Send me an email (@copperhome.com) or reply here.

More details and apply: https://copperhome.com/pages/jobs?gh_jid=4119303007

Re: Ask HN: Who is hiring? (April 2026)

#166
Krea; Fulltime; Onsite, San Francisco, CA, USA.

I'm the cofounder of Krea (https://www.krea.ai/), a company building creative tooling and large-scale infrastructure for multimedia teams. Users range from hobbyists to world-renowned creatives: architects behind the World Trade Center or creative teams at Apple.

We treat research, engineering, and creativity as first-class citizens. We're looking for engineers to join our research, product, and infra teams.

What we value (staff & company writings):

- AGI: https://www.matthewnewton.com/blog/arc-challenge-diffusion

- Diffusion research: https://re-n-y.github.io/devlog/rambling/steering/

- Pragmatic LLM reflections: https://maxemitchell.com/writings/i-read-all-of-cloudflares-...

- Low-level computing: https://gab-menezes.github.io/2025/01/13/using-the-most-unhi...

- Open-sourcing AI research: https://www.krea.ai/blog/flux-krea-open-source-release

Current projects:

- WebGL2/WebGPU for node-based tools & CRDTs for collaboration

- Large-scale multimodal model training

- Cross-service metrics, tracing, and observability

- LLM-driven JS bundle optimization

---

Please apply via `ssh apply@krea.engineering`

You can also apply via https://krea.ai/careers but that's no fun.

Re: Ask HN: Who is hiring? (April 2026)

#167
Atria | Global Remote (almost anywhere) & Hybrid NYC | 10 Engineering roles Atria Health (https://www.atria.org) | product eng, devops eng, platform eng, ...

Our team is operating with the special combination of rigor, empathy, and innovation required to fuel a global shift from reactive sick care to preventative, precision healthcare.

Technologies: Express, React, GCP, Terraform, DBT, MySQL, Snowflake

Apply here: https://apply.workable.com/atria-health/

A human will read every resume sent to hackernewshiring@atria.org

------------------

P.S: We have a new role coming up: Staff SWE, Agentic AI. This role will drive the vision and implementation of agentic AI across our engineering, product, and design teams and later our broader company (clinicians, hospitality teams, ...). This is a special role where we're looking for someone with a strong engineering background who is on the frontier of agentic development. Please express interest via email.

Re: Ask HN: Who is hiring? (April 2026)

#168
NXLog | Agent Lead (C/Rust/AI), Senior Rust, Senior Test Automation Devs | REMOTE (European time zones preferred) | Full-time B2B Contract

NXLog (https://nxlog.org) is an engineering-led company building high-performance, multi-platform log collection and telemetry solutions. We specialize in low-level systems programming (C/Rust) for enterprise security.

We are currently hiring for three critical roles on a full-time B2B contract basis:

A. Agent Lead Developer (Rust/C/AI): Architect the evolution of our core agent. Lead the C-to-Rust transition and AI orchestration. Link: https://application.nxlog.org/jobs/detail/agent-lead-develop...

B. Senior Rust Developer: High-concurrency, high-throughput systems. Memory safety and performance optimization. Link: https://application.nxlog.org/jobs/detail/senior-rust-develo...

C. Senior Test Automation Engineer: Build automated frameworks for complex C/Python systems. Performance and CI/CD focus. Link: https://application.nxlog.org/jobs/detail/senior-test-automa...

The Details:

Rates:

A. Agent Lead Dev: USD 45–55/hr B. Sr Rust Dev: USD 40-50/hr C. Sr Test Automation Eng: USD 33-43/hr

Type: Full-time availability required.

Location: Remote (European time zones preferred).

Tech Stack: Rust, C, Python, Linux/Windows Internals.

We value technical autonomy and deep expertise. If you enjoy solving hard systems problems, apply via the links or email sarika.sinha@nxlog.org.

Re: Ask HN: Who is hiring? (April 2026)

#169
Tufalabs | Senior research/engineers | Full Time | Zurich, Onsite | 100-200k CHF | https://tufalabs.ai/ Our current focus is arc-agi 3. We recently hired the top #2 kaggler to join that effort. We are looking for people deeply passionate about AI research. I am steering our work culture towards "live-to-work": If you wouldn't be doing AI research working somewhere else, then it is not a good fit. If you don't find yourself naturally reading about AI papers or doing random AI projects in your free time, then it is not a good fit. We have high expectations and a generous equity structure to match.

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB300 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, with a strong focus on alignment and safety in the limit.

We can only sponsor visas for people with EU nationality. The position is onsite, fulltime. We are self-funded, from what i call "self-propelled machine learning": I applied ML to cool domains and made returns that way. I can give more details about this privately. If interested, email me at benjamin at tufalabs.ai

Re: Ask HN: Who is hiring? (April 2026)

#170
River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | https://jobs.ashbyhq.com/river

I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.

Here's what our engineering team is working on:

  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir
We're hiring:

  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Staff Software Engineer (Elixir) | $200K-$250K
  - Staff Software Engineer (ML/AI) | $200K-$250K
Apply at https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4
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