Ask HN: Freelancer? Seeking freelancer? (May 2025)

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

Frontend Angular Developer and Ionic Developer Expert

Remote: Yes

Willing to relocate: No

Technologies:

- Backend: Java, Kotlin, Javascript, Typescript, Python, Spring Boot, Hibernate, Kafka, Postgres, Mongo, Redis, Kubernetes, Docker, AWS, Node.js

- Frontend: Javascript, Typescript, React, Tailwind

Résumé/CV: on request

Email: hn.container053@simplelogin.fr

Summary: Results-driven Senior Backend Engineer with 13 years of experience and a passion for developing robust and scalable software solutions. Proactive and resourceful, combines strong technical expertise with excellent problem-solving and verbal communication skills to drive project success and foster team collaboration. Adept at translating complex technical concepts to non-technical stakeholders and continuously learning new technologies.

Portfolio: https://seanw.org/

Live example projects: https://checkbot.io/ https://inclusivecolors.com/

Location: Edinburgh, UK and remote (I’m used to time zone differences and async work)

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I help startups with the UX/UI and web design of their products. This includes web apps, websites, landing pages, copywriting, and I can assist with frontend development where needed. My background of launching my own products and being a full stack developer helps me create practical designs that balance usability, aesthetics, development effort, and performance. I work to fixed price quotes for self-contained projects.

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The best live example of my work is Checkbot (https://checkbot.io/), a browser extension that tests websites for SEO/speed/security problems. The entire project is my own work including coding the extension itself, UX/UI design, website design (the homepage is optimised to load in 0.7 seconds, 0.3MB data transferred), marketing, website copy, and website articles on web best practices.

[ Rated 4.9/5, 80K+ active users, 100s of paying subscribers ]

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I have 10+ years of experience, including a PhD in software verification and 5+ years working for myself helping over 25 companies including Just Eat, Triumph Motorcycles and Fogbender (YC W22). See my website for testimonials, portfolio and more: https://seanw.org

Skills: Figma, Sketch, TypeScript, JavaScript, Vue, Hugo, Jekyll, WordPress, Django, HTML/CSS, Bootstrap, Tailwind, OCaml, Java, Python, C, analytics, WCAG accessibility, website SEO/speed optimisation.

Note: For large projects, my partner usually assists me in the background (I’m working on starting a design studio with her in the future)

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Email sw@seanw.org with a short description of 1) your project 2) how you think I can help 3) the business outcome you’re looking for and 4) any deadlines. I can get back to you in one working day to arrange a call to discuss a quote and how we can work together!

I am web focused software developer. Since 2014 I've worked in Berlin in several companies, most recently in FinTech and I've also worked a year for US company backed by YCombinator.

My strengths are delivering MVP projects and frontend infrastructure. Looking for part-time engagement or full time contract to help build your product (up to 40 hours per week).

  Location: Berlin, Germany
  Remote: Yes
  Willing to relocate: No
  Technologies: JavaScript (React, Redux, Node.js, Webpack)
  LinkedIn: https://www.linkedin.com/in/mirsarace
  Email: dev.msaracevic@gmail.com

We are a small team of professionals with 5+ years of experience specializing in firmware engineering for embedded Linux devices.

If you have a Linux-based board which needs low-level board support and/or software integration, we can help you. Additionally, we provide custom software development and can tailor any kind of embedded OS (Yocto, Buildroot, OpenWrt, Gentoo, etc.) to your specifications.

We can work as an outsourced team or cover the full product development cycle. Technologies & Skills: GNU/Linux, Yocto, Buildroot, OpenWrt, Gentoo, U-Boot, Python, Go, C, Docker, CI/CD, git, cross-compilation, debugging, Robot Framework, ARM, RISC-V

Location: Croatia (GMT+2)

GitHub: https://github.com/fogodevelopment

LinkedIn: https://www.linkedin.com/company/fogodev

Email: info [at] fogodev.com

Location: San Francisco, USA

Remote: Open to it

Willing to relocate: Yes

Technologies: Python, C++, ROS, OpenCV

Resume/CV: https://drive.google.com/file/d/1KDVqrcbSrG1GEcZACEu_FgFqVdK...

Email: nitinjoseph1997@gmail.com

LinkedIn: https://www.linkedin.com/in/nitin1106/

Hi there! I'm Nitin, a software engineer with a passion for AI/ML, computer vision, and automotive software.

I’ve spent some time at Bosch developing real-time ADAS applications and optimizing perception pipelines, and I'm now deep into research at NC State—exploring information bottlenecks in deep learning and contributing to open-source projects like SGLang. I've also led projects in robotic navigation using Visual SLAM and ROS, fueling my interest in autonomous systems. Lately, I've been diving into AI agents and exploring innovative applications across different domains.

I'm eager to collaborate on challenging projects in robotics, intelligent systems, or any cutting-edge tech. If you're working on something exciting in these areas, let's connect!

Location: USA / India

Remote: Yes

Willing to Relocate: Nope

Technologies: Python, Django, FastAPI, Cython, NumPy, Pandas, Polars, GeoPandas, PostgreSQL

Résumé: https://dheerajck.github.io/dheerajck/

Email: dheerajck18@gmail.com

Python Backend role

Hi there, I’m looking to join a small but high trust team / startup where I can focus on backend development with Python and also work on the AI side aswell.

I am only intetested in working with startups with less than 10 people now.

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/

  Email: c410.f3r (at) gmail.com
  Location: Brazil
  Remote: Yes
  Résumé/CV: https://c410-f3r.github.io/curriculum.pdf
  Technologies: AngularJS, Assembly (x84_64), C, C++, Cryptography, Docker, Docker Compose, Ember.js, GCP, Golang, Java, JavaScript, Kubernetes, Linux, MongoDB, MySQL, NodeJS, PHP, Polkadot, PostgreSQL, Python, ReactJS, Rust, SQL Server, Smart Contracts, Solana, Solidity, Substrate, TypeScript, Vue.js
  Willing to relocate: No

While I'm familiar with various technologies, my passion lies in programming with Rust. Whether it's backend development, blockchain, compilers, DevOps, embedded systems or mobile applications, I am totally onboard as long as there is a little bit of Rust involved.

For more information, take a look at my CV (https://c410-f3r.github.io/curriculum.pdf) or my GitHub account (https://github.com/c410-f3r).

I am a backend expert, having built and maintained highly available systems for several companies over the last 15 years, in addition to over 25 total years of software development experience. I learn new things extremely quickly.

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 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!

* 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 jobs to AWS Lambda for a startup hedge fund, vastly improving QoS and maintenance cost. Line 1 to platform-in-prod time 3 months.

* built a ~50 node, AWS, Dockerized, Terraform-deployed distributed system to provide realtime, transformed trade data from crypto exchanges to a Kafka pipeline and data lake (fodder for an analytics platform). Met 5000msec SLA across arbitrarily many exchanges and ticker symbols. Blue-green deployment for complete CICD safety. Cloudwatch metrics proved SLA was met and provided general system oversight.

* 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.io

Keywords: Python, C++, R, SQL, NoSQL, Go, Golang, AWS, Azure, Lambda, Cloudwatch, Docker, Git, SVN, Subversion, Linux, Windows, Bash, Kafka, Terraform, Redis, Postgres, MySQL, SQL Server, SAP HANA, LDAP, Active Directory, OAuth2

  Location: Prague, Czech Republic (EU)
  Remote: yes, please
  Willing to relocate: no, but can travel to the office occasionally
  Technologies: JavaScript, TypeScript, Angular, React, Remix, RxJS, NgRx, ScSS, Nx, NestJS, NativeScript, CI/CD, REST, MongoDB, Mongoose, Jest, Nebular, Ant Design, Angular Material, Swagger, Figma. External APIs: Stripe, OpenAI, AssemblyAI, Deepl, Discord etc.
  Résumé/CV: https://www.linkedin.com/in/otyurin/
  Email: oletrn@gmail.com

I'm an experienced mobile developer who is trying to learn more about web dev with React. I recently built a small web app with React, Typescript, Tailwind and a Supabase backend.

I'm seeking a developer with experience in all 4 of those technologies to do a code review with me over a screen share session. This would be fairly high level, as I would like to talk thru a handful of decisions I made and see if I made any mistakes, especially with my relatively simple Supabase setup.

I expect this would only be an hour or two of work. If anyone is interested shoot me an email, showing some experience with these four technologies, to "jared at jaredandrews dot com"

Thanks!

I have a PhD in computer engineering, specializing in operations research (OR), optimization, constraint programming, and integer programming. As an OR scientist, I implement custom, production-ready solutions for a variety of optimization problems (scheduling, routing, rostering, etc). Recent work includes a sophisticated optimization model for the selection of indexes in Postgres, and a scheduling tool for workshops, used in hundreds of locations.

Résumé/CV: https://github.com/PhilippeOlivier/curriculum-vitae/blob/mai...

Website: https://www.pedtsr.ca

17 yoe developing software systems with FOSS and contributing back.

In the past I got my bits of fame for WHDD https://whdd.github.io/demo/ and the analysis of energy consumption by mobile chat apps: https://decentim.grafana.net/public-dashboards/92602d3a4aa84...

I've worked in many areas, notably back end, multimedia streaming and communication services (IPTV, CCTV, VVoIP), Linux kernel drivers, debugger development. My contributions to FOSS include the kernel, FFmpeg, GStreamer and Gentoo.

  Github: https://github.com/andrey-utkin/
  Website: https://autkin.net
  Email: hn@autkin.net

I'm a freelance consultant specializing in document processing.

Currently building an app that extracts key information from PDFs and automatically highlights the source text for each extracted data point, allowing users to easily verify the accuracy of the extracted information.

I can help with:

  - LLMs, RAG, Structured Extraction
  - Data extraction from PDF documents
  - OCR projects
  - Table detection/recognition
  - Document classification
  - Document splitting
  - PDF workflow automation

Web: https://superdocs.io

  SEEKING WORK | Montreal, Canada | Remote/Freelance
  Technologies: iOS/macOS (UIKit/AppKit/Objective-C/Swift/SwiftUI), Android (Java/Kotlin)
  Web: http://chriscomeau.com
  Resume/CV: http://chriscomeau.com/resume
  LinkedIn: https://www.linkedin.com/in/christiancomeau
  GitHub: https://github.com/chriscomeau
  Email: chris.comeau@skyriser.com

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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.

I’m Micayla — a freelance designer specializing in developing brand identities for startups and small businesses. Think: logos, color systems, brand voice, landing page designs, pitch decks, templates, and everything in between to make your product feel polished. I’m looking to take on new clients — so if you’re working on something cool or know a founder who could use branding support, let’s connect.

Website: micaylarosenbaum.com

Contact: microsestudios@gmail.com

Remote: Yes

Willing to relocate: No

Technologies: Javascript, Typescript, React.js, Vue.js, Angular, D3.js, Chart.js, Three.js, Storybook, Material UI, React Native, Node.js, Express.js, GraqphQL, Python, Ruby, Jest, Cypress, ENzyme, AWS EC2/S3/Lambda

Résumé/CV: https://drive.google.com/file/d/1yxShBr6LC3LwtEt5-XEYAdZA0UB...

Email: johnhood920924@gmail.com

Passionate Senior FrontEnd Developer with 10 years of experience in writing complex logics beneath a simple UI/UX. Possesses a keen eye for detail and a design-oriented mindset, which has led to the successful delivery of successful products like Zillow, Airbnb and Walmart+

I design and build real-time platforms, full-stack apps, and embedded systems - from cloud dashboards to drones. I've led engineering for a cloud-native analytics platform in regulated pharma (real-time visualization of plant data), developed autonomous delivery systems at Manna Aero, built BMC firmware for enterprise storage at NetApp and designed automated warehouse robots at Eiratech Robotics.

I also help startups go from zero to launch in a week - taking rough ideas and turning them into clean, performant, production-ready tools.

Looking for freelance work in early SaaS teams, integrations, infra-heavy builds, or high-conversion marketing sites.

What I bring:

• Full-stack product delivery (TypeScript, React, Next.js, Python, PostgreSQL, MongoDB)

• Embedded + backend systems (C, Linux, telemetry, automation)

• SEO-ready, scalable frontends for startup founders

• From idea → clean, tested, deployable code - fast

If you're building something ambitious (or just broken and messy), I can help.

Portfolio: https://www.bartekbaran.com

GitHub: https://github.com/BBato

Résumé/CV: https://drive.google.com/file/d/1Fme-hI1aOzxM_t844pHHZQN08Hb...

Email: contact@bartekbaran.com

Need design help? Whether it’s a website refresh or a user-friendly app, I’ve got you covered. I believe in clear communication and teamwork to bring your vision to life.

Let’s make something great together. Interested? Reach out, and let’s chat about your project.

Portfolio: https://www.ugurturgut.com/

LinkedIn: https://www.linkedin.com/in/ugur-turgut