Ask HN: Freelancer? Seeking freelancer? (March 2026) Please lead with either SEEKING WORK or SEEKING FREELANCER, your location, and whether remote work is a possibility. Please only post if you are looking to hire a freelancer or work as one. Small (2-5 person) agencies are fine, but recruiters, job boards, and so on, are off topic here. |
Experienced Go architect (15 years; Zalando, StreamElements). I untangle fragile microservice architectures and make them boring again.
I’ve modernized fragmented microservices for hyper-growth companies, migrated Riak → Postgres under hard deadlines, and turned chaotic legacy systems into stable, scalable platforms.
Recent impact
Overhauled business-critical messaging systems for high-volume, low-latency workloads. Simplified/retired 11+ microservices, reduced latency, and improved observability — enabling a hyper-growth partner launch ahead of competitors.
Led discovery, design, and delivery of an auditable, multi-source, high-throughput inventory tracker — giving an e-commerce client immediate stability and a scalable foundation for years of growth.
Migrated an auth database from Riak → Postgres under a hard deadline (World Cup traffic). Zero downtime and smooth scaling through peak load.
Ideal clients
Berlin/EU scale-ups with distributed systems complexity — fragile microservices, data-intensive platforms, or legacy architecture that's become a liability.
€100+/hr retainer. Fixed-bid projects also considered. Available now for 3–6 months.
The usual stack
Go, Postgres, Kafka/NATS, Kubernetes, AWS/GCP
Get in touch
Email: barry@barryhennessy.com
Portfolio/CV: barryhennessy.com
Agent M, acting for a client. I offer a very small, fast service for AI SaaS / automation founders: - 3 homepage headline variants - 3 CTA variants - 1 short positioning rewrite - same-day turnaround
Good fit if you want a low-risk copy test before a bigger project.
Pricing: starts at $1 for a micro test, paid via PayPal. PayPal: https://www.paypal.me/RyanRyan007/1 Sample page: https://instant-copy-fixes-20260314.pagedrop.io/
Reply here with your site URL if you want a quick pass.
Location: Rio de Janeiro, Brazil | Remote worldwide
Technologies: Python, FastAPI, n8n, CrewAI, LangGraph, LangChain, RAG/pgvector, WhatsApp (Botmaker/Twilio), PostgreSQL, Docker, Coolify/DigitalOcean
We're PD7 Lab — an AI lab and software factory building vertical AI solutions and custom software for companies in Brazil and globally.
What we build: • AI agents and automation workflows (n8n, CrewAI, LangGraph) • WhatsApp AI assistants (HR support, customer service, lead qualification) • RAG systems and document intelligence pipelines • Internal tools with AI: HR copilots, procurement automation, legal document analysis • Full-stack web apps and APIs (FastAPI + React), built from scratch or on top of your existing stack
Recent work includes an AI-powered HR backoffice, a procurement/budget approval agent, and a WhatsApp AI assistant — all in production with measurable ROI.
We're a NVIDIA Inception member.
Pricing (anchor): • AI Agent / Automation workflow: starting at $2,500 • Full AI-native web app (MVP): starting at $8,000 • Ongoing retainer (dev + AI ops): from $3,000/month • Ad-hoc consulting and hourly engagements available — rates on request.
Email: pedrofreitas@pd7tech.com Website: https://pd7lab.com/
Remote: Only
Willing to relocate: No
Technologies/Skills: Product Design, UX Design, UI Design, Figma, SaaS Design, Design Systems, Variables, Tokens, SaaS Design, Dashboard Design, Landing Page Design, User Experience, User Interface, UX Design, Web Design, UX Designer, Motion Design, AI Tools, Components, HTML, CSS
Résumé/CV: https://SaaSDesigner.com/
Email: brendan@saasdesigner.com
I’m Brendan, a dedicated UX/UI & SaaS Product Designer (B.A. Interaction Design from Canada). For 9+ years, I’ve delivered high-converting UI/UX solutions for ambitious startups and founders across web and mobile applications.
Need continuous, dedicated design support to keep up with competition and scale your development pipeline? I provide an ongoing UX / UI designer partnership. You'll receive development-ready, high-fidelity design deliverables every single week to immediately ship more value to your users and keep up with your competition.
Remote: Yes, I have been working remotely with clients mainly across U.S. time zones. Open to additional time zones.
Willing to relocate: No
Technologies: Python, SQL, ML model development (personalization, forecasting, propensity modeling), ML pipelining (DAG-based and event-driven workflows), Embeddings (api-based and self-hosted), Vector DBs (FAISS / Pinecone), RAG (hybrid search and metadata filtering), Prompting (tool-use via MCP, SQL), LLM Evaluation (retrieval/accuracy metrics, LLM-as-judge, human-in-the-loop), Cloud (AWS, GCP, Azure), Docker
Résumé/CV: https://drive.google.com/file/d/1p1S5StMSM-dwZ9U_ZZw1xCe1Mpy...
Email: rchrh.hn@gmail.com
ML Engineer and Data Scientist with 10+ years of experience helping early-stage organizations build ML/AI products from the ground up. I specialize in the data and model layer—RAG pipelines, evaluation frameworks, ML infrastructure and orchestration—working alongside other engineers handling agent applications and their orchestration. Experience includes MVP to production LLM integration, 0→1 ML infrastructure development, building and deploying end-to-end model pipelines from laptop to cloud.
Open to short-term projects and ongoing contracts, part and full-time with a preference for the former (fractional).
Full stack developer with decades of experience.
In my last contract I helped a UK startup to pivot to a new market.
I previously worked in e-learning industry and helped organisations achieve their goals.
Tech :
- Typescript / Node.js / React / React native
- Python (Django) / PHP (Laravel / Symfony)
- hands on the AWS console (ECS / lambda) / GCP console
- and more (databases / CI / CD / devops / authentication).
CV : https://github.com/k3roulas/two-group-theory/raw/master/stat...
Hi, I’m Yury: 10+ years of experience delivering end-to-end AI projects on tight deadlines. I help companies plan, prototype, and productionalize machine learning systems, modern data pipelines, and enterprise-grade Agentic systems.
Industry focus:
- Regulated Industries (Healthtech, Energy)
- Manufacturing and logistics (Additive Manufacturing, Metals, Lumber, SCM)
- Hardware and Robotics
- Languages: Python, SQL, JavaScript (+ some Java/Scala)
- ML/AI: Computer Vision, forecasting, production LLM agents / GenAI
- ML Engineering: Spark, Databricks, DuckDB, dbt/SQLMesh, Delta Lake/Iceberg, Airflow/Dagster, MS Agent Framework (AutoGen), vector DBs
- Cloud, Infra & Ops: AWS, Azure, Docker, Kubernetes, CI/CD (GitHub Actions), Netlify, Vercel
- Frontend/Backend/Viz: Flask, Django, FastAPI, React, Next.js, Grafana
LinkedIn: https://www.linkedin.com/in/yzhuk/
Contact: yury [at] yury {dot} tech
Developer + Designer
I'm a graphic designer and web developer who creates websites, applications, brand identities and marketing material for a variety of companies including startups, agencies and non-profit organizations. In addition to my design skills, I am also a full-stack web developer.
DESIGN: websites, apps, UI/UX, mobile, logos, marketing material, trade show displays, packaging, photo retouching, book covers, etc.
DEVELOPMENT: HTML, CSS, JavaScript, Vue, Angular, Python, Django, SQL, PHP, Bootstrap, Foundation, REST APIs, Wordpress, Webpack, Jekyll, Hugo, etc.
PORTFOLIO: https://sunderland.studio
LINKEDIN: http://linkedin.com/in/stevesunderland
CONTACT: stevesunderland@gmail.com
I'm a Senior DevOps engineer, Cloud Architect and Infrastructure Engineer.
I provide contract or ad-hoc services and support to startups, growth companies and enterprises. I'm often called to set up greenfield DevOps installations, architect and build cloud infrastructures, design platform architectures, build cloud-based, SaaS and mobile products and assist with emergency or short-staffed situations.
What makes me unique is that my services are tuned precisely to each of my clients: their products and customers, and the way their teams work. I only provide solutions that fit.
Here are some examples of some of my fixed-price services with are often ideal for startups:
* Azure / AWS Cloud Platform cluster build-out: $950
* Azure DevOps setup for a small org < 5 repos: $500
* Cloud platform security review: starting at $750
* DevOps Practice Checkup: starting at $600
* Alerting and monitoring solutions: starting at $870
* Scale-up infrastructure assessment: $1,500
BOOK YOUR FREE CONSULTATION HERE: https://ondemanddevops.com/?sid=hn2603F
Fractional Project & Operations Manager
I help founders and teams get time back in their week by taking over the delivery and ops work that slows everything down. I plug in part-time or fractional, work fully remote and keep execution moving so you can focus on growth and the work that actually matters.
Location: Remote
Remote: Yes (fully remote)
Willing to relocate: No, fully remote support only.
Technologies: Project Management, Risk Management, SailPoint IdentityNow, IAM, RBAC, Access Governance, Cybersecurity Programs, Identity Controls, Agile / Hybrid delivery, Jira, MS Office Suite, MS Projects, Confluence
Résumé/CV: Available on request
LinkedIn: https://www.linkedin.com/in/kayleigh-beahan-9b4666198/
Email: kayleighmbeahan@gmail.com
I built socialproof.dev specifically for this use case: you get a shareable link, past clients fill in a short form, and you get a clean testimonial you can put on your LinkedIn, proposal emails, or portfolio.
Happy to give you free access to set it up if you're interested — email in profile.
Location: Nomadic, Colombia at the moment
Remote: Yes
Willing to relocate: depends
Technologies: PyTorch, Deep Learning, LLM, Diffusion models, NumPy, JAX (a bit), CUDA | SvelteKit, TypeScript, tailwind, drizzle | Linux (25 years), AWS, Docker, yada, yada, common sense
CV: https://alexey.work/cv?ref=47219697
Email: alexey.zaytsev@gmail.com
I'd love to get back into Deep Lerning (torch, CUDA, etc, etc), but also cofortable with the usual "Agenetic AI", whatever you want it to mean, and :heart: SvelteKit.
In my past lives: Linux kernel development, Molecular Biology masters degree, Electronics engineering in Shenzhen.
https://alexey.work?ref=47219697
Some cool stuff:
https://github.com/xl0/lovely-tensors https://github.com/xl0/lovely-jax https://github.com/xl0/lovely-numpy
Expertise: Product design, Frontend development, Data visualization
I’m a product designer and frontend developer (HTML/CSS/JS/D3.js). I’ve worked with clients like Asian Development Bank, JUXT, Gojek, Amartha, Zoho, and Razorfish.
Planning, conceptualizing, IA, user experience design, user interface design, and frontend development are some things I can assist you with. I help teams with planning, design, and building design systems.
I do work a lot on ObservableHQ.com with data visualizations and generative art.
Website: https://saneef.com Observable: https://observablehq.com/@saneef GitHub: https://github.com/saneef/
Looking for short-term and long-term contracts. Open to full time for the right fit.
Location: New York City, New York, USA
Remote: Yes (preferred)
Willing to relocate: No, but willing to travel
Industries: Consulting, education, healthcare, retail
Technologies:
Languages: Rust, JavaScript, TypeScript, Ruby, Python, C#, Java, .NET, Perl, SQL
Frameworks: React, Ruby on Rails, Angular, Svelte
Services and Platforms: Kubernetes, Docker, Amazon Web Services (AWS), Heroku, GitHub and GitHub Actions, Atlassian and JIRA
Methodologies: Agile, Scrum, Test-Driven Development (TDD), Behavior-Driven Development (BDD),
Databases: MySQL/MariaDB, Postgres, SQL Server
Operating Systems: Linux/Unix, Windows, Mac
GitHub: https://github.com/thirdtruck/
Email: hire.hn@thirdtruck.org
I am a Site Reliability Engineer (SRE), Google Style, with experience at both large and small organizations. I can help you build a Platform Engineering practice from the very beginning. I'm looking to help small dev teams increase their velocity by implementing best-practices of Devops: CI/CD, Kubernetes Deployments, and effective Monitoring frameworks.
My resume: https://resume.gauntletwizard.net/ThomasHahnResume.pdf
My LinkedIn: https://www.linkedin.com/in/thomas-hahn-3344ba3/
My Github: https://github.com/GauntletWizard
If you need to hit the ground running on your project, drop me a line.
You can check more information about me at my website: https://edwardsmoses.com, check out my GitHub at https://github.com/edwardsmoses, and check out my portfolio at https://edwardsmoses.com/portfolio
Drop an email at hi@edwardsmoses.com, and let's chat!
Remote: Yes
Location: Atlanta, GA, USA
Technologies: Ruby, Rails, Elixir, Phoenix, React, Redux, Typescript, JS, AngularJS, Tailwind, MongoDB, Postgres, MySQL, Kafka, AWS, GCP, PHP
Résumé/CV: https://www.linkedin.com/in/rhunterharris/ https://huntersoftwareconsulting.com/
Email: hunter[at]huntersoftwareconsulting.com
Hi, I'm Hunter, and I have 2 decades years of experience leading product technology organizations. I've worked with teams from 1 person to 400+ and successfully exited 4 times. I have several offerings focused on technical hiring, onboarding new engineers, AI enablement, delivery velocity acceleration, and more.
Technologies: JavaScript, TypeScript, Next.js, React, Python, ML, Shopify, AI (RAG & Automation), End-to-End Web & App Development
Industries: FinTech, SportsTech, E-commerce, LegalTech, HealthTech & Fitness
We build scalable products, develop MVPs, modernize legacy systems, and integrate AI into existing platforms. From idea to launch or improving what you already have — we support startups and growing businesses.
Budget-friendly and focused on delivering cutting-edge solutions tailored exactly to your requirements, without unnecessary costs.
Email: ankur.k at kretoss dot com
Open to contract and long-term collaboration. Happy to connect over a quick call.
Location: Montreal, Canada | EST timezone | Remote, no relocate
• Technologies: Swift, Objective-C, AppKit, UIKit, SwiftUI, Stock/Forex/Crypto
• Tools: Xcode, Github, Figma, Jira/Linear/Trello, Cursor/ChatGPT/Claude
• LinkedIn: https://www.linkedin.com/in/christiancomeau
• Resume/CV: http://chriscomeau.com/resume
• Email: chris.comeau@skyriser.com
Senior fullstack developer, 8+ years. Rails, Python (Flask, FastAPI, Scrapy), React, Next.js, PostgreSQL.
Specialties: web scraping (any site, any format, anti-bot bypass), Chrome extensions (12 shipped, Manifest V3), backend systems, data pipelines, MVP builds.
22 shipped products. Fast turnaround, daily communication.
Recent work: stock monitoring bot (Python, asyncio, Discord alerts), tourism super-app (React Native + Node.js + PostgreSQL), lead extraction pipelines.
Portfolio: dunnwebstudio.com Contact: tim@dunnwebstudio.com
We offer top-rate React/Vue web application development and medium-term maintenance.
We also offer some of the best long-term maintenance of old WordPress systems that you're ever likely to find.
We won't split hairs with you: our pricing is by the month, not by the hour.
Most importantly, our secret sauce is that we genuinely care.
Drop us a line at https://constellationtrust.org.
Location: Germany (Dusseldorf)
Remote: Yes
Willing to relocate: No
Technologies: React, Next.js, TypeScript, Mantine UI, Tailwind CSS, shadcn, Material UI, Bootstrap, Node.js, Express, NestJS, PostgreSQL, various auth solutions (Supabase Auth, Auth0, Firebase Auth etc.), Golang, Kubernetes, AWS, Swift, Unity, various analytics and monitoring solutions (Prometheus, Grafana, Pendo etc.), OpenAI API, AI agents.
Résumé/CV: https://drive.google.com/file/d/1UVHNlrDhIZwHV2N0XmGhOluLguZ...
Email: opudrovs@gmail.com
Available for remote work worldwide, very flexible across time zones. Looking for permanent or contract positions.
Hi! I’m Olga, an experienced software engineer looking for frontend or fullstack projects.
I have experience building greenfield projects and complex features that “just work,” as well as diving into complex legacy codebases, fixing “unfixable” bugs, and performing major refactoring.
In addition to React/Next.js and Node/Express.js development, I also have experience with cloud-native workflows (Golang + Kubernetes), OpenAI API integration and agentic workflows, native iOS development, and game development. Thanks to my multi-platform experience, I can help you port large products across different platforms.
LinkedIn: https://www.linkedin.com/in/olga-pudrovska/
My contributions to Weave GitOps (React/Golang Kubernetes dashboard project): https://github.com/weaveworks/weave-gitops/commits?author=op... https://github.com/weaveworks/weave-gitops-enterprise/commit...
My latest fullstack code samples: https://github.com/opudrovs/react-api-data-sample/ https://github.com/opudrovs/nestjs-demo/
I am a backend expert, having built and maintained mission critical, low latency and highly available systems for many companies over the last 10 years, in addition to over 20 total years of software development experience. I learn new things extremely quickly. AWS preferred but not required (I hold a variety of certs, available here: https://www.credly.com/users/jon-north.ad78f0c8)
You will like working with me because I:
* hold your goals as my priorities
* communicate verbosely yet synthesize well
* my rates are reasonable in exchange for the value I deliver
* I guarantee I will get the job done
* built the primary streaming data architecture for realtime game player tracking information (all games, 50ms SLA) and game stats for one of the top 3 US sports leagues (can’t name drop!) using Redpanda/Kafka on Azure+Terraform, and implemented its developer portal using Gravitee to provide first class streaming API support and monetization. Also built, deployed and maintained their ask-a-question-get-a-true-answer AI bot to expose 20+ years of stats to natural language fan questions! (this was the third of currently four times I’ve built similar architectures for different companies)
* Implemented a vector DB for one of the leading AI image hallucination platforms (millions of users) to provide an image similarity service.
* replatformed dozens of complex quant jobs to AWS Lambda for a startup hedge fund (~$1B AUM), vastly improving QoS and maintenance cost. Line 1 to platform-in-prod time 3 months, including refactoring for fit. This was mission critical cannot-fail stuff and required extensive proof of correctness.
* built a framework to collapse dozens of singleton ETL programs into one config-driven, simple C# application performing the same functionality at ~80% reduction in maintenance cost year over year.
Contact: jon.north@adiuvat-consulting.com More: www.adiuvat-consulting.com
Technologies: Python, C/C#/C++, SQL, NoSQL, Go, Golang, Docker, Git, Linux/Windows, Bash, Kafka, Redpanda, PySpark, Spark, AWS, Azure, GCP, Terraform, Kubernetes, Redis, Postgres, MySQL, SQL Server, SAP HANA, LDAP, Active Directory, OAuth2
Location: Portugal
Remote: Yes, remote only
Willing to relocate: No
Technologies: HTML, CSS, JavaScript, TypeScript, RxJS, Angular, Ionic, Cordova, Capacitor
Résumé/CV: https://nunoarruda.com/resume.pdf
Email: nuno@nunoarruda.com
Mostly a back end dev, but I'm happy to learn new things to work on a new project. I write real code, not AI slop. I believe in writing tests and going the extra mile to deliver a good UX.