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.
Location: Germany
Remote: Yes
Willing to relocate: No
Languages: English, German
Technologies: Python, Natural Language Processing (NLP), Search Engines, Machine Learning (ML), Finance, Law, Perl, Lua, Linux, LLM, RAG, scientific Py (numpy, scipy, pandas, matplotlib, scikit-learn), QGIS & geographical Py, nltk, vector search, elasticsearch, apache solr, lucene, quickwit tantivy, PostgreSQL, clickhouse, mongodb, redshift, AWS, Azure, docker, git
Résumé/CV: https://richard.bergmair.eu/en/projects/resume.pdf
Web: https://richard.bergmair.eu/
Email: richard.bergmair@urefpa25.onmicrosoft.com
Hours: CET (European), US East, Indian
Ph.D. in NLP from the University of Cambridge; recently: course on LLMs from MIT's AI & ML Certificate
13 years of freelancing in long-term remote gigs
~ 10 years of that was heavy on Data Science & ML (Goldman Sachs, Telefónica Germany, Flowminder Foundation, ...)
~ 7 years of that was heavy on Search Engines & NLP (DuckDuckGo, JUJU a.k.a. job-search-engine.com, ...)
some special interests: privacy & data protection (TÜV-certified), legal tech, law & compliance, finance, bookkeeping
Technologies: Ruby on Rails, TypeScript, React, Next.js, PostgreSQL, Golang, Python, Tailwind, Hotwire/Stimulus, Statistics, Data Engineering
Resume: https://docs.google.com/document/d/1TaK7Sl-1PSBhabkRS2truoqG... Email: [hello@markjanzer.com](mailto:hello@markjanzer.com) Website: [https://markjanzer.com](https://markjanzer.com/)
Founding/Staff Engineer with strong product sense and bias toward action. Former founding engineer at Monograph (Series B SaaS) where I wrote 80% of code through $160K ARR and helped scale from 1 to 25 engineers.
What I bring: Technical leadership on high-risk architecture decisions, experience mentoring engineers, and a track record of building scalable systems from scratch. Strong product sense focused on asking the right questions and figuring out what not to build. Comfortable diving into new tech stacks and problem domains.
Looking for: Teams where I can blend hands-on IC work with collaboration and teaching. Especially interested in ML/LLM applications. Want to work on something that makes a real difference—whether that's boring business software or cutting-edge tools.
Recent projects: Esports analytics with Elo ratings, spaced repetition learning tools in Go, and an experimental musical keyboard
Looking forward to hearing about what you’re building!
Location: Europe
Remote: Yes
Willing to relocate: No
Technologies: Java EE, Spring, Spring Security, REST, HTML/CSS, JavaScript, JQuery, Node.js, Python, Jaspersoft Studio, Eclipse, Tomcat, MySQL, Oracle, Git
Résumé/CV: https://docs.google.com/document/d/1lMjbMfEHKdCETFNXcV3Q4dRu...
Email: nishchalaro[at]gmail[dot]com
I am a senior developer and consultant with over 15 years in the industry. My expertise is in building robust, secure and scalable backend services and enterprise applications.
My expertise includes data visualization, business intelligence and analytics. I have extensive experience with the TIBCO Jaspersoft BI suite - Jaspersoft Studio, JasperReports Server and Jaspersoft ETL (Talend Open Studio and Server).
I am looking for freelance/consulting opportunities at the moment (up to 40 h/week).
Website: https://www.nishchalarora.com/
We are a small remote full-stack design and dev team specializing in healthcare apps. Our portfolio: https://vitalsphere.digital. Some recent projects we've worked on: https://pathways.org/mobile-app, https://axiosint.com/digitalsolutions, https://popset.xyz, https://www.signupmedia.com, https://emulatebio.com, https://conveyour.com, https://www.webvideocaster.com, https://ways2well.com.
Some of the technologies we're most familiar with: Web and mobile design, UI, UX, iconography, illustration, design prototyping, PHP, Node.js, Meteor, Python, Ruby, JavaScript, HTML, CSS, Sass, LESS, Stylus, CoffeeScript, WebSockets, AJAX, MongoDB, Redis, MySQL, Cordova, PhoneGap, React Native, iOS, Android, Browser extensions (Chrome, Firefox, Safari), AWS, WordPress, Joomla, Drupal, C, C++, C#, Java, Objective-C, Swift, pharmacy systems such as QS/1, HL7, HIPAA, Smart Contracts, Motoko, Web3.
We offer hourly rates and discounted monthly retainer options. Contact: via our website or you can contact me directly at eliyah@vitalsphere.digital.
I'm a computer engineer with hands-on experience in embedded systems, cloud infrastructure, and full-stack web development. Most recently, I co-founded a pharma-tech startup, where I led the development of real-time data infrastructure, visualization and analytics on a regulated cloud platform.
Selected projects:
- Autonomous drone delivery systems for last-mile food logistics
- BMC firmware for enterprise storage deployed across major data centers worldwide
- Robotics firmware powering large-scale warehouse automation
- Managed Kubernetes PaaS for automated, multi-tenant application deployment
I also help startups go from zero to launch in a week - taking rough ideas and turning them into clean, performant, production-ready tools.
If you have a project or challenge that matches, feel free to reach out - I’m happy to discuss how I can help.
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Technology:
TypeScript, JavaScript, React, Next.js, WebGPU, WebGL, Python, C/C++, Linux, AWS, Docker, PostgreSQL, MongoDB, Kubernetes, IoT, CI/CD, Eagle, Altium, SolidWorks, Fusion360, OnShape
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Portfolio: https://www.bartekbaran.com
GitHub: https://www.github.com/BBato
CV: https://www.bartekbaran.com/cv.pdf
Email: contact@bartekbaran.com
I specialize in developing augmented reality, spatial computing, and computer vision apps for iOS & visionOS. Several of my apps were handpicked and featured worldwide by Apple.
Skills: visionOS, iOS, and macOS Swift/SwiftUI Development
Experience with: Swift, Vision Pro, ARKit, SwiftUI, RealityKit, Reality Composer Pro, Shader Graph, SwiftData, object tracking, room tracking, LiDAR scene reconstruction, world tracking, hand tracking, Enterprise APIs, plane tracking, body tracking, postprocessing, face tracking, image saliency analysis, semantic segmentation, depth estimation, RoomPlan, SceneKit, Object Capture, photogrammetry, CoreML, Create ML, Spline, OpenAI API, Supabase, Metal, Combine, iMessage extensions, Firebase, Firestore, Vision, Speech, Natural Language, WorkoutKit, Stripe
Website: https://1984.dev
Email: tony@1984.dev
visionOS Blog: https://vision.engineer
LinkedIn: https://www.linkedin.com/in/atmorales0/
GitHub: https://github.com/robomex
Clients: Walmart, Madespace, Carnegie Mellon University, TXI, Hyper, Makeshift Studios, Remotion, Supermedium, Mozilla, Hopper, Mask Market, Tempus Ex, Virtruvia, iScape, NudgeTV, Hillside Software
If you have any questions or you want to get a conversation started: Shoot me a message & let's talk!
Hey, I was #1 on HN last month - maybe you saw my white paper on the small world of English? That analysis mapped 110M+ semantic connections across 1.5M+ words. I've now turned that data into a daily word game that explores how humans naturally connect ideas.
This is what I do: transform complex systems into experiences people love.
Previously: Evolved SpicyNodes from academic visualization to 40M users. Transformed NIST timing software into time.gov. Converted medical AI research into patient tools serving 1.5M users. PI on $295K NSF SBIR for semantic innovation.
Core expertise: Taking technically sophisticated systems and creating intuitive interfaces that preserve depth while enabling broad adoption. From atomic clocks to language models.
Available for: VP Product/CPO roles, founding product positions, strategic advisory
Portfolio: https://www.michaeldouma.com Latest: https://www.inotherwords.app Email: m5@inotherwords-studio.com