Posted by whoishiring 1 day ago
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.
ABOUT: I’m a seasoned Full-Stack Software Engineer with expertise in developing scalable, secure, and user-centric web applications. I bring years of hands-on experience across a wide range of technologies including React.js, Next.js, TypeScript, Node.js, Restful APIs, C#, AWS, Azure and various database systems. I’ve led and contributed to projects in Product Development, Enterprise & Solution Architecture, Cybersecurity, and Cloud Infrastructure.
Core Technologies:
• Web & Frontend : React | Next.js | Node.js | TypeScript | JavaScript | Redux | Express.js | Tailwind CSS | GraphQL | MongoDB | Firebase | PHP | Drupal
• Backend & Microsoft Stack: .NET Core | C# | Web API | Asp.Net MVC | Linq | Entity Framework
• Databases: SQL Server | PostgreSQL | MySQL | MongoDB | Redis | CouchDB
• Cloud & DevOps: AWS | Azure | GCP | Docker | IAM | RDS | Aurora | DynamoDB | Serverless Functions
• Packages & Tools: Figma | Chart.js | D3.js | Git | Jenkins | Keycloak | Retool
Resume/CV: https://www.rasikjain.com/resume/
LinkedIn: https://www.linkedin.com/in/rasikjain/
GitHub: https://github.com/rasikjain
Stack Overflow: https://stackoverflow.com/users/1993944/rasik-jain
I'm a Staff Machine Learning and Computer Vision expert with a PhD in Urban Scene Understanding and over 10 years of experience, currently focusing on object detection and classification from videos using Transformers and CNNs. With a background spanning academia, industry, and startup advising, I specialize in designing AI architectures for smart cities and outdoor scenes, autonomous systems, large-scale visual perception tasks, as well as applications in artworks and collectibles and building AI algorithms for non-destructive testing.
My expertise includes object detection, scene analysis, tracking, embeddings, visual image search, and optimizing inference pipelines for real-time and computationally cheap applications. I have extensive experience leading AI projects, mentoring teams, and collaborating with industry partners to bridge the gap between research and production.
Technologies: Python, PyTorch, TensorFlow, OpenCV, YOLO, Transformer models, Multi-GPU training, Azure ML, Docker, NLP, 3D Vision, Non-Destructive Testing, OCR, and AI-driven analytics.
Contact: kujtim.rahmani@gmail.com
Location: Los Angeles
Remote: Yes
Willing to relocate: No
Technologies: Python, R (+Rcpp, Shiny, etc), Julia, Machine Learning (ML), PyTorch, SQL, Linux, AWS, GCP, JS, FORTRAN, C, SAS (if I have to), etc
* 10+ years of data consulting projects for industry, nonprofit, and state and local gov, * Plus several hundred academic clients from a variety of disciplines. * Extra domain knowledge in adtech, CPG (MMMs), lending, insurance, IoT. * Previous career as a Java Dev / SWE, also capable of deployment or integration. * Willing to modernize / port legacy software to newer systems or languages.
Email: nfultz[at]gmail[dot]com
Independent software developer and system administrator available for flat-rate projects, and as a fractional embedded team member. I've been building and maintaining full-stack web applications and cloud software solutions for over eight years. My work emphasizes simplicity, security, accessibility, and reliability.
Solutions - Custom software development, data processing, content management systems
Services - Web development, Data engineering, Cloud sysadmin + DevOps, Software consulting, Tech leadership
Skills and experience - Read my portfolio blog here: <https://www.matthewcardarelli.com/blog/client-stories.html>
- Web UI: HTML/CSS/JS (React, NextJS, Typescript, and more)
- Web server: Python (FastAPI), NodeJS (Express), GraphQL, Nginx
- ETL: Python (petl, multiprocessing, Boto3)
- Database: SQL RDBMS (PostgreSQL, MariaDB, SQLite)
- Cloud sysadmin: AWS (RDS, S3, VPC, and more), GCP (Tasks, Cloud Functions, Firestore), Akamai/Linode
- DevOps: CircleCI, Terraform, Ansible, Docker/Podman, Prometheus, OpenTelemetry, Grafana
- Auth: OAuth 2.0 + OpenID Connect (Auth0)
Pricing - Available on a fractional or flat-rate project basis: <https://www.matthewcardarelli.com/pricing.html>
More information available at: <https://www.matthewcardarelli.com/>
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/
Email: rhunterharris[at]gmail.com
Hi, I'm Hunter, and I have 15 years of experience leading engineering teams and orgs, working cross-functionally, and mentoring others. I've worked with teams from 1 person to 100s, from Seed to Series D. Other skills include Product and project management among others. Currently building out my fractional practice, with a focus on 8-24h/wk engagements.
Location: Seville, ES and Dijon, FR
Remote: Yes
Willing to relocate: No
Main technologies: C++, embedded systems (STM32, PSoC, nRF), JUCE, Objective-C and Cocoa.
CV/Contact: https://www.linkedin.com/in/jonathan-aceituno-105694356
I've been designing and developing digital musical instruments and synths for more than 10 years, including two commercial products used by professional musicians around the world.
Combined with a background in HCI research, I offer strategic assistance, interaction design, and software development services to companies interested in building reliable interactive products, be they hardware or software.
I work using a positive, humane, and mindful approach aimed at understanding the underlying needs of stakeholders and making the best of a situation. I try to avoid dogmatism in my own thinking but at the same time respect existing rules and processes.
I'm currently working with a handful of small companies as well as a public research institution, and I'm looking to expand my network outside of France.
If you have needs that intersect my background and interests, or if you want to chat about making fun, profound, and expressive tools, or anything pertaining to HCI, software, DSP, or music, don't hesitate to contact me!
smoking_evidence4y@icloud.com
I can provide the following for you:
- Product Design — Whether you need a design from scratch, a redesign, or you're having issues with a small part of your product, I can design it.
- Front-end Development — I can build the design into a pixel perfect product. This is rare among us designers and has proven to be extremely powerful for the result since there is less wasted effort. I've worked with a wide range of frontend and backend technologies and can hit the ground running on new projects. I pick up new tech quickly, which makes it easy for me to adapt to different environments.
- Analysis — Your users, know everything that's wrong with your product but have difficulty communicating it. Often it comes out in anger and frustration. That's where my usability analysis comes in. I'll review your app from an outsider and expert point of view, and give you actionable feedback.
- Free advice — You might not be sure if I am the right fit, and I very well might not be. I can help you figure out the best direction to go for free.
I take my work very seriously and put a lot of work into excellent communication, proper planning, and, last but not least, properly understanding your product so that we can produce great results.
Portfolio at: https://gilli.is
Contact me at gilli@hn.gilli.is
Location: Oslo/Norway
Remote: Yes
Technologies: NixOS, Nix, Rust, F#, Go, Haskell, Lisp, Python, Kubernetes
Résumé/CV: https://paket.no/cv
LinkedIn: https://linkedin.com/in/ezemtsov
Email: mail [at] paket.no
Technologies:
- Typescript, js, python
- Node, Express, Nest, Next, GraphQL, React-native, Microservices
- React, Redux, MobX
- MySQL, PostgreSQL, MongoDB
- LLM agents, LangGraph, LangChain, RAG pieplines
- Docker, AWS-Cloud Lambda, S3, DynamoDB, Ec2.
- Learning RUST
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Full-stack engineer with close to 9 years of experience to build, to architect software systems.
Actively looking for a "remote" job to contribute to business projects and build long term work relationship.
- Email: divyeshpar2496@gmail.com
- LinkedIn : https://linkedin.com/in/pbdivyesh
- Github: https://github.com/tapudp