Oxidian | https://www.oxidian.com | Remote (EU only)

We're doing to government software what challenger banks did to banking. We build critical systems for scientists and researchers, making sure public money is well invested.

Our work involves high-performance Python for petabyte-scale Earth Observation and satellite datasets, clean web UIs for complex data, and modern DevOps pipelines to automate scientific workflows.

Small team, fast-moving. Trust and autonomy from day one. No bureaucracy, just hard problems and impact.

We're hiring mid and senior Python Developers with 3+ years of experience.

Send your CV and a couple of paragraphs on why you're interested to careers@oxidian.com with the role in the subject line.

KeyMe Locksmiths | IT Sysadmin | Remote | key.me

Fully automated self-service key duplicating kiosks can be found in over 7,000+ locations across the country in major retailers such as WalMart, Kroger, 7-Eleven, Menards, and many others.

We're hiring an IT Support Sysadmin to help manage and automate the hardware our employees use day to day, and the 7000+ kiosks we manage in the field. Linux, Windows, MacOS, SaltStack, Docker, AWS, with Terraform and Kubernetes.

Reach out to tim.mahoney@key.me and mention "IT Support Sysadmin" in the subject.

Location: Taiwan (UTC+8)

Remote: Remote (EU friendly, limited US/Canada hours)

Willing to relocate: No

Languages: Ruby, JavaScript (ES6+), TypeScript, HTML/CSS

Frameworks: Ruby on Rails, StimulusJS, Tailwind CSS, Bootstrap

Tools/DevOps: PostgreSQL, Git/GitHub, Gemini CLI, Heroku, Render, Railway

Résumé/CV: https://drive.google.com/file/d/11plS8evNAqPoN2hJdbR5izabKHM...

GitHub: https://github.com/yuhruh

LinkedIn: https://www.linkedin.com/in/yuruhuang/

Portfolio: https://pet-feeding-tracker-v4.up.railway.app

Email: yuhruhgrape@gmail.com

Hello, I'm Rita, a software Engineer with 5 years of experience building secure, maintainable, and data-driven web applications using Ruby on Rails, PostgreSQL, and Tailwind CSS. Specialized in transitioning complex legacy systems (Excel/Manual processes) into modern full-stack solutions with automated workflows and AI integration.

Looking for: Ruby on Rails Developer/ Fullstack Engineer/ Backend Engineer.

Emergences Labs (emergences.ai) | AI / Systems Engineer — NeoHuman | REMOTE (US) | Full-time | $120K-$150K + equity | Visa sponsorship available

We're a small, research-driven, VC-backed team building NeoHuman: a desktop-first system that observes how people actually use AI tools, files, and workflows during real tasks, and turns those sessions into reliable evaluation evidence. We care about the process, not just the final answer — what someone typed, what they copied, what they verified, how they moved across apps.

We've published the AgentIF-OneDay benchmark. Now we're scaling the capture and evaluation infrastructure underneath it.

Apply: email jack@emergences.ai with your resume and a brief note about a system you've built — desktop software, AI infra, data pipelines, evaluation, or low-level debugging. Subject: "Your Name — AI / Systems Engineer". Please mention HN in the email.

Full JD: https://emergences.ai/careers/ai-engineer

Doubling | Design Engineer | Chicago or Bay Area preferred | REMOTE (US) also considered | CONTRACT (1099), 10-20 hrs/week

Doubling is building a new mobile product in the health and wellness space. Small founding team, mission-driven, 0-to-1 stage.

We're looking for a Design Engineer to own the mobile UX end-to-end: product design, motion / interaction design, and code contributions where it helps the team move faster. The core of the role is product and motion design; code contributions are valued but not the primary skill we're hiring for.

Stack / tools: Figma, React Native, plus at least one motion or prototyping tool (Rive, Lottie, After Effects, Principle, or Framer).

What we want: 2+ years combined in product design and motion / interaction design, at least one shipped mobile product, a portfolio that demonstrates both UI and motion work, and enough comfort in a frontend codebase to land small UI tweaks and animations (or genuine interest in growing into that).

Bonus: prior consumer health, wellness, fitness, or nutrition product experience; design system ownership; founding / first designer at a startup.

Must be authorized to work in the U.S. as an independent contractor. No visa sponsorship for this role.

Details: https://www.doubling.io/careers/design-engineer Apply: careers@doubling.io

India(Guna,Madhya Pradesh), remote

SEEKING FREELANCER | Tiger Tracks (REMOTE, US/EU timezones) | Founding AI Engineer | Contract-to-hire

We're a performance marketing agency (Inc. 5000 #123, ex-Google founders) hiring our first dedicated AI engineer as a contractor.

What you'd build: landing page conversion analyzers, creative analyzers for video ads, vertical media buying co-pilots for Meta/Google/TikTok APIs. Real LLM tools that go into client production the same week they ship.

Stack: open. We don't care which LLM provider sits underneath. The value is in vertical specialization on top.

Required: top 1% with Lovable, Replit, or Cursor. Public GitHub or portfolio with shipped projects we can play with. Ability to ship a complex tool (multiple data sources, APIs, server hosting, LLM integration) in under a day.

Comp: hourly contract, bi-weekly net-14, monthly renewal. Path to Head of AI for the right person.

Process: 30-min intro, 45-min founder conversation, 60-min live build in Lovable or Replit (we watch you ship). Offer within 2 weeks.

Apply: https://tigertracks.isolvedhire.com/jobs/1768363-447725.html with your portfolio link and one project you're proud of.

Parabola | Site Reliability Engineer | San Francisco, CA (Hybrid) | Full-time

Parabola is a no-code data workflow automation tool that helps operations teams move, transform, and automate their data without writing code. LLMs are a core part of our product — we use them to help users build and reason about their workflows — and they're increasingly part of how we run infrastructure too. We're a small, product-focused team and our infrastructure runs on AWS. We're looking for an SRE who's passionate about observability and keeping systems healthy and understandable. You'll own our monitoring and alerting infrastructure, drive incident response, and work closely with engineering to make sure we have deep visibility into everything that matters. We expect you to use LLMs heavily in your work — writing runbooks, generating alert configs, drafting postmortems, building dashboards — and we want someone who's already figured out how to make that feel natural. What you'll work on:

Observability stack — Prometheus, Grafana, dashboards, alerting, and on-call workflows Incident response and postmortems — building a culture of learning from failures SLIs, SLOs, and error budgets — helping the team make data-driven reliability decisions Monitoring LLM-specific infrastructure: latency, token throughput, model error rates, cost attribution AWS infrastructure across our stack (Lambda, ECS, RDS, OpenSearch, CloudFront, etc.) CDK-based IaC and CI/CD pipelines as needed

What we're looking for:

Hands-on experience with Prometheus and Grafana (or similar — Datadog, Honeycomb, etc.) Strong instincts for what to instrument and what good alerting actually looks like Comfort debugging distributed systems across the full stack Experience owning on-call and incident response end to end AWS familiarity and enough IaC experience to get things done (CDK or Terraform) Someone who reaches for an LLM before writing boilerplate from scratch — and knows when not to

Nice to have: experience instrumenting LLM pipelines, familiarity with TypeScript/Node.js, startup experience, or a background in security and compliance.

Reach out at cj@parabola.io or apply at https://jobs.ashbyhq.com/parabola-io/75141699-0666-4baa-b03f....

Atom Computing | Senior Infrastructure Engineer + Principal Software Engineer + Software Engineering Manager | Boulder, CO (Hybrid) | Full-time

Atom Computing is developing large-scale quantum computers using arrays of optically-trapped neutral atoms. We are building cutting-edge systems for on-premises deployment. Our unique approach to highly scalable quantum computing will enable customers to achieve unprecedented computational breakthroughs.

Available Roles:

Senior Infrastructure Engineer - sits at the intersection of cloud infrastructure, on-prem systems, developer tooling, and production reliability. You’ll work closely with software engineers and physicists to improve deployment workflows, observability, automation, and system performance across a hybrid environment. - <https://jobs.lever.co/atomcomputing/d41b071a-3faa-435c-baba-...>

Software Engineering Manager - Help define the technical direction across externally facing APIs, cloud integrations, researcher workflows, and the productization of Atom’s quantum computers. This is a unique opportunity to lead greenfield development efforts at the intersection of distributed systems, cloud infrastructure, high-performance computing, and quantum technologies. <https://jobs.lever.co/atomcomputing/68b51bf2-f5f6-4657-b827-...>

Principal Software Engineer - *architect and build the backend services powering our neutral atom quantum computing platform. This role focuses on scalable distributed systems, quantum job orchestration, cloud infrastructure, and production-grade APIs, working closely with physicists and hardware engineers to turn advanced quantum workflows into reliable commercial systems. <https://jobs.lever.co/atomcomputing/a74fb4af-b45f-4684-b1db-...>

I'm a ML Engineer with a year of experience in delivering fast agentic pipelines and AI solutions to clients all around the world, feel free to check my website! https://kev187038.github.io

Location: Cyprus

Remote: yes

Willing to relocate: No

Technologies: RAG, Agentic AI Pydantic, Langfuse, LangChain, Vercel, Railway, Hatchet, FastAPI, NextJS, React and more on my website

linkedin: https://linkedin.com/in/gabriele-matini

website: https://kev187038.github.io

Resume: https://drive.google.com/file/d/1fJYRuVKSJORT5ChYd9twp2w8g4P...

Email: gabriele.matini18@gmail.com

Industries I am not willing to work in: adult entertainment, gambling

Build robust, ship fast!

Campus | Software Engineers, Product Managers & Data Scientists | Hybrid in NYC

Campus is a Series B Edtech startup with a mission to maximize access to a world class education backed by investors such as General Catalyst, Founders Fund, Bloomberg Beta and 8VC.

We’re hiring technical talent across levels and functions to build tech that modernizes education - please apply to any that you may be a fit for!

Senior Staff AI Research Engineer: https://bit.ly/49A6IGs

Staff Data Scientist: https://bit.ly/48OOMYz

Staff Fullstack Software Engineer: https://bit.ly/4eUt4Gv

Senior Product Manager: https://bit.ly/4wyDd1U

Walmart Global Tech (International Digital Experiences) | Frontend Software Engineer | Sunnyvale, CA (Onsite)

What you’ll do

- Build modern, scalable UIs with React, modular CSS, Redux, React Query, and GraphQL - Improve and refactor existing codebases with a focus on simplicity and performance - Partner closely with product, design, and UX to create intuitive customer experiences - Own features end-to-end and ship to large-scale production daily - Share knowledge and contribute to a strong engineering culture

What we’re looking for

2+ years of software development experience. Experience building responsive SPAs with React (or similar frameworks). Solid understanding of JavaScript, React, and Node.js fundamentals. Experience with REST APIs (building or consuming). Curiosity, product sense, and a bias toward shipping

Nice to have

Exposure to GraphQL, Next.js, Nx, or modern frontend tooling

Details

- Location: Sunnyvale, CA (onsite only)

- Visa: No sponsorship available

Email: gaurav.sharma0@walmart.com - please mention HN in your email