Posted by whoishiring 7/1/2025
Ask HN: Freelancer? Seeking freelancer? (July 2025)
Please only post if you are personally looking to hire a freelancer or work as one. Agencies, recruiters, job boards, and so on, are off topic here.
Experienced full stack software engineer with a demonstrated history (10+ years) of working with enterprise solutions on premise and in cloud. I don't shy away from maintaining old code bases or learning new/old technologies and I'm very comfortable wearing many hats.
I love working directly with stake holders, even if they don't have engineering background. I can also team up with other freelancers and I know a few I've worked before in case you need more hands on deck, or need someone with a specialization, e.g. UI/UX design, translations...
Tech stack: Node (Typescript), .NET (C#), Vue, React, Blazor, PostgreSQL, MS SQL Server, DevOps, Docker
Cloud: Azure, AWS, Hetzner, Digital Ocean
Contact: https://ica.hr
Location: Berlin, DE
Remote: Yes
Willing to relocate: No
Technologies and tools: Rust, Embedded Systems (Cortex-M, RISC-V), Desktop/server apps/tools, async/await
Website: https://onevariable.com
Email: contact@onevariable.com
GitHub: https://github.com/jamesmunns
Hey, I'm James! I have my company (OneVariable), and have 7+ years of embedded Rust experience, and 10+ years of embedded experience. I've been helping teams start using Rust, or scale up their use of Rust, through advising, training, and development assistance, as well as "Senior as a service" to help teams that are ramping up but still need help with questions around embedded/rust. Happy to help customers in EU and NA time zones.
Let me know if you need any help getting big computers talking to smaller computers!
I'm a data scientist, I'm looking for hard problems to solve. Hair on fire "This is causing lemon-law recalls and we can't solve it."[1] type problems.
I love avant garde problems, and have a pretty unique toolset (LLMs+KB, OR+ML, etc). I've worked with names you know in automotive, tech, and other spaces. Recently I've been working with Oil & Gas - Production estimates, pricing, and things I'm not allowed to talk about.
I've worked on projects including LLMs, knowledge extraction, automotive part failure prediction, translation, maintenance optimization, automated sports highlights, and more. I've also done some more interesting work including vehicle route planning in constrained environments.
Get in touch. Even if you're unsure, get in touch. Referals welcome. Email in profile.
[1] Yup. Done that. A few times.
Location: Seattle, WA, USA
Remote: Yes
Willing to relocate: No
Email: josh@standardlabs.dev
Website: https://standardlabs.dev
Resume: https://standardlabs.dev/resume
I’m a U.S.-based principal engineer with 10+ years of experience, specializing in JavaScript, React, and Next.js. I help product teams ship fast, modernize legacy frontends, and solve tough architectural problems without adding tech debt. I’m a strong written communicator — ideal for async, remote-first teams.
Highlights
- Refactored complex React apps for performance and maintainability
- Migrated production apps to Next.js for improved SSR and data handling
- Boosted Core Web Vitals and Lighthouse scores
I’m currently available for remote, part-time or short-term contract work. If your team could use a senior partner to move faster and cleaner, let’s talk.
My Github is https://github.com/chistev but my professional projects are private.
Personal website - https://www.rxjourney.net/
I have extensive experience building software with Python and Javascript (along with their respective frameworks and libraries).
I've built E-com software serving an international community of over 1,000 users.
I've helped a California engineering student with their React, Three.js, and Express js assignments.
Technologies I Use -
- Frontend: HTML, CSS, Vanilla JavaScript, TypeScript, Svelte, React, Material UI, Bootstrap, Three.js
- Backend: Django, Express.js
- Others: Experience integrating third-party APIs like Stripe, Flutterwave, Coda, Circle.so, Dropbox, Google authentication, Brevo, OpenAI etc.
Let me help build for you or join your team!
Languages: C/C++, Python, JavaScript, Kotlin, Dart, VHDL, SystemVerilog
Embedded Systems: PowerPC, ESP32, STM32, iCE40, ECP5
ML: TensorFlow Lite Micro, PyTorch, ONNX, OpenCV
IoT: BLE, WiFi, MQTT, LoRa
My latest projects have been in full-stack Edge R&D for SLaM, memory controller firmware dev for POWER servers, and chip bringup/testing for Z mainframes.
I'm passionate about modular synthesis and tinkering with all sorts of analog circuits and DSP. Currently upskilling in analog PCB design and refining my abilities in FPGA development.
Services I offer: custom firmware implementation, hardware/software integration, full-stack edge AI architecture.
Feel free to reach out directly at dm@datameta.info
Location: Wisconsin
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Last September I built an AI inference tool that hit #3 on HN (https://news.ycombinator.com/item?id=41620530). It processed 17.3M messages in 24 hours and only cost $17 to run.
I specialize in:
- LLM inference optimization (FastAPI, proper batching, memory management)
- CI/CD pipelines for ML deployments
- Making AI systems cost-effective at scale
Recent work: FrankenClaude (reasoning injection experiments, https://thelisowe.substack.com/p/frankenclaude-injecting-dee...), self driving Rocket League (https://thelisowe.substack.com/p/building-an-ai-that-plays-r...), diffdev (AI-powered code modification tool, https://pypi.org/project/diffdev/).
Previously at Sprout Social where I built their ML inference platform - reduced deployment time from 6 months to 6 hours and cut AWS costs by $500K/yr.
Looking for interesting problems in AI infrastructure, performance optimization, or building products from scratch.
Tech: PyTorch, FastAPI, K8s, Docker, AWS, ONNX
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Resume: https://drive.google.com/file/d/1qO8XdisNTFq_wmrQGDKnu6eWDi2... GitHub: github.com/Mockapapella Blog: thelisowe.substack.com
Contact: My email is in my bio or on my resume
- Vanilla JS/HTML/CSS - Flutter/Dart - Monkey C (Garmin) - Hugo/Go - PHP, SQL - Python - WordPress + Plugins - Image/audio/video editing
CV: mm-dev.rocks/mm-dev-cv.pdf
Email: In CV
I'm Mark, I've over 15 years industry experience working with startups, household names, solo entrepreneurs. I live semi off-grid in my touring caravan, currently in South Wales. I've been working on my own open source projects for a while and want to get back amongst it.
Non-code skills:
- Communication: translate ideas from inside your head into a buildable plan
- Manage expectations, understand priorities, keep you in the loop
- I'm a generalist from art/design origins
Linux/Windows/Android/MacOS/iOS.
Interested in repairability and getting the most out of cheaper, lower-powered devices.
Seeking:
- Short-term, full-time projects - Longer part-time commitments (eg 1-2 days a week, few hours a month, retainer) - Agency overspill - Open to other ideas!
Hi, I’m Juan (aka John Kleinad). I build clean, scalable web and mobile applications with a strong focus on UX and performance. I’ve led and shipped projects for startups and organizations—from custom CMS dashboards and admin panels to cross-platform apps with push notifications and offline support. I’m also an AWS community organizer in Mexico and enjoy helping teams deliver cloud-native products. Open to part-time or short-term freelance work (10–25h/week).