CodSpeed | Multiple Positions | On-site (Paris) / Remote (Europe) | Full-time | https://codspeed.io

We’re building the continuous performance optimization platform. We help engineering teams catch performance regressions before they ship, with sub-1% measurement variance. We’re already trusted by teams at Cloudflare, Vercel, Mozilla, Pydantic, and Astral (Ruff, uv).

We’re a small, deeply technical team looking for engineers who want real ownership and the chance to ship end-to-end. Competitive salary, stock options, generous PTO.

Senior Systems Engineer: CPU simulation tooling, language runtime internals (CPython, V8), kernel I/O emulation. C/C++/Rust/Zig.

Senior Full-stack Engineer: React/Next.js, Node.js/TypeScript/GraphQL, GitHub/GitLab integrations, Rust data pipelines.

Senior/Lead AI Engineer: Agent layer, eval methodology, context pipelines, model selection. Python/FastAPI.

Graphic/UI Designer: Visual identity and product experience for a developer tool.

More details at https://careers.codspeed.io. Apply at careers@codspeed.io

AllSpice.io | Remote (US time zones) | Senior / Principal Engineers | Full-time

Think of github but for hardware design. (PCB and Schematics design). Our mission is to bring the same modern workflows that revolutionized software: version control, automation, and collaboration to the hardware world. We are also introducing AI to hardware design!

We work on:

• Parsing complex ECAD formats (Cadence, Altium, etc.).

• Schematic/PCB diffs (not just text).

• Hardware CI pipelines (BOM, DRC, PLM integrations).

• AI-assisted design reviews.

• Scaling a Git-based platform for non-software engineers.

Stack: Go, Python, Rust, Vue/TypeScript, Postgres, AWS, Docker, Terraform (Gitea-based core)

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

Open roles:

• Principal Engineer (Parsing)

• Senior Infra Engineer (Infra)

Looking for engineers who like deep systems problems and high ownership.

Apply: https://www.allspice.io/careers

SF Sauna -- SF Bay Area

Electrical / Power Systems Engineer - Build a battery-integrated sauna heater

Paid contract role, $80 - 150/hr, 15–25 hr initial scope

This is a multi-kW DC system problem (battery pack, resistive heater, contactor, safety logic). The constraint is reaching sauna temps without relying on a 240V wall connection.

We currently generate ~$5k MRR renting saunas in the SF Bay (sfsaunarental.com). We've validated pain-point and demand.

If there’s mutual interest and the prototype goes well, this could extend into deeper collaboration or a more dedicated role.

To apply, email zach (at) sf-sauna (dot) com and include:

A short description of the EE project you're most proud of building from scratch A link (GitHub, project photos, writeup, resume, etc)

Visit sf-sauna.com for more info about the problem space.

Heard | Senior Software Engineer (Full-Stack) | Seattle | HYBRID | Full-time

We just crossed $11M ARR and 5,000 customers -- all therapists and mental health providers who trust us to run their financial back office: bookkeeping, taxes, payroll. Now we're building AI-powered CFO for therapists -- a layer on top of our ledger. Think proactive financial guidance, automated transaction classification, reconciliation, and agentic workflows that collapse hours of bookkeeping.

Stack: TypeScript, Node/Express, React, Postgres, AWS, lots of third-party integrations. You'll work across automation, AI product, and growth depending on what matters most. Apply: https://jobs.lever.co/heard/8d51e41d-b9c5-45fd-b9bc-f2a1c7f0...

Tangled | Distributed systems / Generalist Engineers (Go, Nix) | REMOTE (Global)

Tangled is the next-generation social coding platform. We offer git repository hosting, stacked PRs, Nix-based CI and more. We just raised our €3.8M ($4.5M) seed round[0] to build foundational infrastructure for the future of open source.

Some of the things we're working on:

* a fully revamped CI (spindle v2!) built on micro VMs to allow for faster builds and more choice of build environments

* protocol-level improvements across the board that’ll unlock nifty things like repo migrations across knots, organizations, and more!

* a customizable “mission control” dashboard for your active PRs, issues, and anything else you might want to track

* a migration tool to help you move off GitHub

* all things search: code search, repo search, etc.

* platform and infrastructure performance improvements & more global presence

* Tangled CLI!

We're prioritizing hiring for CI infrastructure, so strong distributed systems experience, Go, Firecracker/virtualization, etc. are what we're looking for. If this sounds interesting, send us an email to team@!

[0]: https://blog.tangled.org/seed

Yuzu Health (yuzu.health, Series A) | Location: New York City (Flatiron) | ONSITE Pitch: Yuzu is not a wrapper, point solution, or integration on top of something. Our platform makes it easy for anyone to create their own health plan from scratch. That means our tech handles everything from the member/HR portals, claims adjudication, invoice automation, member support tools, to even printing and sending out ID cards.

Why: We're truly rebuilding health insurance from the ground up. We currently serve over 1,000 employers, and we're growing extremely fast (like over 10x last year fast)!

Investors: We're well funded with investors like General Catalyst, Chemistry, Anthropic, Lachy Groom, Neo and founders from startups you know like Notion, Brex, Deel, and Mercury.

Roles: We're hiring engineers for in-person work over here at Yuzu's HQ in Union Sq, Flatiron. Primary need is for Fullstack/Product Engineers but we're also looking for a Data Engineer and a Product Designer. Job board here - https://yuzu.health/careers You can check out our office in our recent MTV cribs office tour also - https://www.linkedin.com/feed/update/urn:li:activity:7398820...

I'm Kev, the recruiting lead. Reach out to me directly if interested on kev ( at ) yuzu ( dot ) health

Journalytic | UI Developer (React/TypeScript) | REMOTE (US time zones) | Full-time

Journalytic is an early-stage company building a mission-critical operating system for professional investment teams. We combine behavioral science, structured workflows, and well-crafted software to help hedge funds, family offices, and RIAs make better decisions every day.

We’re a remote team with hubs in Pennsylvania, California, and Seattle. This role is perfect for an engineer who relishes complex technical challenges in a fast-paced startup environment. You’ll be joining a team of passionate A+ players who will support you and challenge you to grow. You won’t be a small cog in a big machine. Your work will have a direct impact on how the world’s best investors operate.

For full details and to apply, visit https://jobs.journalytic.com

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-...

Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-...

Lots more: https://jobs.ashbyhq.com/charge-robotics

Immunera | Principal Machine Learning Engineer | NYC area (hybrid) | Full-time | immunera.ai

Hey! I’m Maxim, cofounder/CEO of Immunera.

We're building blood tests that use gene sequencing and machine learning to help patients with autoimmune disease. Immunera spun out of years of research at Stanford, and our technology has been published in Science and covered by The New York Times.

We're hiring a Principal Machine Learning Engineer to shape the core models and infrastructure that power our blood tests. We are partnering with hospitals to generate training data from real patients for our language models and other biological sequence models.

This is a senior engineering role with significant autonomy at an early-stage, venture-backed startup. We're looking for strong experience building and operating ML systems in production (Python, PyTorch/TensorFlow, cloud platforms). Prior biology or healthcare experience is NOT required; we care much more about your ability to reason about data, models, and systems.

Full JD: https://www.immunera.ai/jobs

Contact: maxim@immunera.ai (subject: “HN ML job”)

We have multiple openings for: QA Engineers, Go Engineers, Full Stack Typescript Engineers (Remote, Europe)

About us: We're a fast-growing, strategy-first software studio. We design, build, and launch products across many verticals. We're fully remote with flexible working hours. Learn more about our company culture at the apply links below!

* Please use "hackernews" as your referral source and I'll flag your CV for priority review with the hiring team! *

ROLE: Quality Assurance Engineer | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/32205

ROLE: Go Engineer | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/34031

ROLE: Full Stack Typescript Engineer | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/31725

New Lantern | https://newlantern.ai | Software engineers (frontend and backend product engineers) | Full time in San Francisco, CA (ONSITE)

New Lantern is building an AI radiology resident—think Cursor for radiologists. Our application integrates the three software tools radiologists use all day [1], together with AI, to create a platform that saves radiologists toil and lets them focus on reading images and finding disease.

We are a series A startup with ~15 engineers (~30 total staff), have live customers generating revenue, several years of runway, and are backed by Benchmark, Anthropic, and other great investors.

We're hiring for several engineering roles. You'll work directly with our founder/CEO, our staff radiologists, and our end users to build a product that radiologists rely on daily. You'll have real ownership and autonomy, and ship meaningful work frequently.

I'm Steve, New Lantern's Head of Engineering. If you're interested or want to learn more, shoot me a note at (my HN username)@newlantern.ai. I've already hired one engineer from HN this year!

[1] a radiology image archive & viewer, a medical report dictation system, and work management system

AllSpice | https://allspice.io/ | Boston, MA / SF Hybrid or Remote | Full time (US timezones) | Mid/Sr./Principal/Staff | Golang, Vuejs, Rust, Python

At AllSpice, we're building the future of hardware development and collaboration, applying modern software design principles to the hardware industry with design review, automated test, and AI (think GitHub + copilot for hardware). AllSpice is unlocking the next generation of smart vehicles, IOT devices, rockets, medical devices, robotics, and much more.

Read more about our latest Series A announcement in TechCrunch (https://techcrunch.com/2025/06/23/allspices-platform-is-the-...)!

We have a highly capable, tight-knit, remote-first team with a flex office in Somerville, MA and SF. We strongly value continuous communication and personal development. See more on our careers page https://allspice.io/careers

We’re hiring primarily for:

Director of Infrastructure (Linux, Terraform, Docker, SOC 2) - Own our infrastructure stack, security posture, and compliance programs while building and leading a small, high-impact team. This is a hands-on leadership role (60/40 management to IC) requiring deep AWS and security expertise, experience working with legal counsel and enterprise customers, and the ability to hire and mentor as the team grows. https://www.allspice.io/careers?ashby_jid=88cf1665-04ab-4043...

Principal Software Engineer (Parsing, Rust) - build and optimize our Rust-based parsing engine that transforms opaque electronics design files into open, scriptable data. This role focuses on low-level binary parsing, data structure design, and performance optimization for ECAD file formats. https://www.allspice.io/careers?ashby_jid=c977db6e-d5ea-4424...

Head of Growth - Own and scale one AllSpice's enterprise demand & pipeline generation. https://www.allspice.io/careers?ashby_jid=b1ac9d68-2229-4005...

Tech Stack: Docker, Terraform, GoLang, Rust, Python, Vue, Typescript, Python

Please include any relevant open-source projects or portfolio in your application.

Storepass | Senior Software Engineer | Onsite (Burlingame, CA) | Full-Time | $100k - $150k

We're a fast growing profitable SaaS that helps stores sell Pokemon cards (and other tcgs). https://storepass.co.

Tech stack: Node.js, Express.js, React, MongoDB

Apply here: https://storepass.co/jobs

Topliner - Senior Fullstack Developer (Node.js / Laravel / React+TS / AI Integrations) - Remote - $80k/year https://topliner.app We’re building Topliner, an AI-powered platform for executive search.

Requirements: - 5+ years full-stack experience - Fluent English - Exceptional quality standards

Compensation: - $80k/year - Remote - Part-time → full-time path - Equity potential

Apply here >>> https://topliner.app/careers

Lithic (https://lithic.com) | Senior Software Engineer ; Engineering Manager | REMOTE

Lithic is the modern API for issuing & processing payment cards across Visa, Mastercard, and Amex. We're a small engineering team building the infrastructure layer powering billions in transactions for fintechs, startups, and enterprises. If you want to work on hard problems in real-time financial systems at scale then come build the future of payments with us.

A few open roles:

- Engineering Manager ($169-265k) — Apply here: https://grnh.se/m0egl9zi4us

- Senior Software Engineer, Treasury ($160-200k) - Apply here: https://grnh.se/ubprc3e24us

- Senior Software Engineer, Issuing ($160-200k) - Apply here: https://grnh.se/ncbb3vl54us

Those application links will fast track directly to me (Jason, co-founder/CTO). Also feel free to reach out to me directly via email at jason@.

Also... We're hiring for many more roles too- check them out here: https://job-boards.greenhouse.io/

Hey HN — Adobe is hiring an AI Agent Engineer. My team is building Adobe’s next‑gen, AI‑first marketing platform, and we’re looking for an engineer to design and ship production‑grade AI agents at enterprise scale. You’ll work on:

Building and orchestrating AI agents (LangChain, AutoGen, Semantic Kernel) Prompting, memory, tool‑calling, and agent‑to‑agent workflows Improving quality, reliability, and learning loops (HITL, retraining, drift) Integrating agents with enterprise data, compliance, and workflows

You should have:

5+ years in AI/ML, NLP, or backend engineering Strong experience with LLMs, RAG, and conversational systems in prod Comfort with cloud (AWS/GCP/Azure), APIs, Docker/K8s Bonus: multi‑agent systems, data labeling, synthetic data

If you’re excited about building high‑impact AI platforms at scale, I’d love to chat. Email abhishak@adobe.com with "HN" in the subject or apply here "https://adobe.wd5.myworkdayjobs.com/external_experienced/job..."

Avantos.ai | https://avantos.ai | Sr Software Engineer | St. Louis or NYC | 150-200k

We're building an AI notetaker and task management tool for financial advisors. Startup is headquartered in NYC. If you're not in NYC, quarterly travel to the office is expected.

Front end: React DB: Postgres APIs: Golang, Elysia/Node Infra: AWS ala Terraform

Interview Process

1. 10-minute async coding challenge 2. Hiring manager chat and 20-minute coding challenge OR take home challenge 3. 45-minute Coding Challenge w/ another Engineer from the team 4. System Design Interview 5. Chat w/ a Product Manager

Apply here: https://avantos.breezy.hr/p/4a707ef4f952-senior-fullstack-so...

Ro | NYC | Hybrid (2 days/week in-office) | Full-time

Senior/Staff Python Engineers for our patient experience and core teams!

Ro is building an end-to-end healthcare platform (telehealth + labs + pharmacy) used by 2M+ patients. We’re hiring senior backend engineers who want e2e ownership: you’ll drive projects from problem framing → architecture → shipping incremental improvements → measurement and iteration, partnering closely with product/design/clinical.

What you’ll own: - Lead critical initiatives end-to-end with team members - Make pragmatic architecture decisions and raise the bar on quality (observability, performance, correctness) - Coach/lead through influence: reviews, design docs, unblocking, setting standards - Ship in small slices with measurable outcomes (not “big bang” rewrites)

Stack: Python, FastAPI, Postgres, AWS, Redis, Kafka/queues, Docker/K8s, observability tooling

Open roles (apply here): https://ro.co/careers/#open-roles

Other roles we’re also hiring for: SRE, iOS, and a few leadership roles (see job board).

Pushscroll | Full-Stack Mobile Engineer (KMP) | REMOTE (GMT-3 to GMT+4)

We make people do push-ups before opening addictive apps - verified through camera pose detection. Our goal is to replace doomscrolling with exercise.

500k+ downloads, bootstrapped and profitable, very quickly growing.

Looking for someone strong in Kotlin Multiplatform + Compose Multiplatform + Swift/SwiftUI who works independently, uses AI to ship fast, and can implement a pixel-perfect Figma design.

Bonus: Supabase, Amplitude, native Android/iOS knowledge (e.g., Screen Time).

Small team, work directly with founders, long-term role. We’ve got big plans to make Pushscroll the app of the year, and there are exciting challenges to get there.

Reach out: contact@pushscroll.com

Sphinx Defense | Software Engineering | Remote (US Only) | https://www.sphinxdefense.com

Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively.

To learn more about who we are, our engineering culture, and whether this is the right place for you, https://sphinxdefense.com/

Our current openings are: Senior DevOps Engineer - Colorado Springs, CO: https://grnh.se/kr0n2vu78us

Proposal Manager - REMOTE: https://grnh.se/qx1hetjt8us

Proposal Manager - Colorado Springs, CO: https://grnh.se/bn6gh5xl8us

Junior Associate Software Engineer, Colorado Springs, CO: https://grnh.se/upa2vamw8us

Sr. Software Engineer - Frontend - Colorado Springs : https://grnh.se/hj59fohy8us

Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us