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.
Biotech/Bioinformatics Software Engineer | 7+ years experience
I'm a software engineer currently at Gencove (biotech) with deep expertise in bioinformatics and genomics software development. I help biotech companies build robust, scalable solutions from MVP to production.
What I bring: Domain expertise in genomics pipelines, bioinformatics workflows, and biotech-specific challenges. Full-stack development with Python (primary), Go, Rust, React/Next.js. Available as fractional CTO or founding engineer for early-stage biotech startups. Highly self-motivated with extensive remote work experience.
Ideal for: Biotech/bioinformatics/genomics companies needing technical expertise, developer tools and infrastructure projects, early-stage startups requiring foundational technical leadership, and short to mid-term consulting engagements.
Open source: Notable project at https://github.com/mliezun/caddy-snake
Blog: https://mliezun.com
Contact: https://linkedin.com/in/mliezun
Available for immediate engagement. Happy to discuss how I can help accelerate your biotech project.
SEEKING WORK | Chennai, India | Remote
Technologies: Java, Golang, Angular, SpringBoot, Python, Django, Flask, SQL/NOSQL, OpenAPI, LLMs
Projects: https://home.alles-tools.com/
Email: suvarnanarayanan2g (at) gmail.com
I have quite some experience dealing with LLM based applications - taming them into giving more sane answers. The best one that I have built so far lets you attach to any data sources (SQL/NoSQL/Files) etc and then just ask questions about them. Literally any question (even outside the schema) and it never makes up stuff.
My going rate at the moment is $5 per hour (subject to complexity and my preference) - capped at 8 hours a day for 5 days a week, which is around $200/wk at minimum.
I am very transparent about my work and I do not ask for payment beforehand and no compulsion to pay if work is not up to your standards. Also, before I take you as my client, we will do a call - this helps me to have a measure at your expectations/requirements and helps to build a bond which is something I really value.
If you prefer - you could directly schedule a meet @ https://calendly.com/suvarnanarayanan2g/30min?month=2025-07
If you cannot make the slots to work for the calendar above, please shoot me an email and I will do a meet at a time you are comfortable with. Cheers!
Full-stack web, software and game developer, specializing in high-performance, minimal-dependency solutions. Available as an individual contributor, lead developer, or consultant. Passion for simple, efficient code and pushing web technologies to their limits. Can mentor teams or bring expertise to complex projects.
Proven track record of building multi-million dollar websites from scratch to production.
Expert-level HTMX, C, Zig, Odin, WebAssembly, vanilla C/HTML/JS/CSS, PHP.
Proficient in Laravel and game dev frameworks.
Also experienced in technical streaming, community engagement, and mentoring developers on modern dev practices.
Specialties:
High-performance web development with HTMX and vanilla JS
WebAssembly and C/Zig/Odin for game and web projects
Offline mode implementation for web apps
Indie game development
Performance optimization and legacy code refactoring
API design and integration
Technical mentoring and team alignment
Resume & Contact - https://spirofloropoulos.com | spiro(at)spirofloropoulos.com
Willing to relocate: No
Location: Los Angeles, California
Website: https://jonathanlahijani.com/
Email: (myusername)@gmail.com
I'm a contract (1099) full-stack web application developer with over 20 years experience and work with many medium-sized companies. My latest project is a custom order and production management system for a print-on-demand company in Los Angeles which took over a year to build (it's extremely complex). It handles thousands of orders per day across multiple factories and used by hundreds of employees and manages over 100 different product types each with unique graphical requirements.
I work mainly with PHP/MariaDB/Laravel/ProcessWire and I am experienced in all areas of development including developing REST APIs, system administration and much more.
LinkedIn: https://linkedin.com/in/sebastianlauwers
Technologies & Skills: Backend software development, architecture, cloud architecture, VPC design, Rust, Python, Pandas, Polars, Big Data pipelines, SQL, AWS, Postgres, Airflow, REST APIs.
I have a significant amount of experience as a tech lead, team lead, VPoE, and CTO. I can easily integrate in teams, I can build teams, I can mentor juniors. I work well in both enterprise and startup environments, and anything in between.
15+ years of experience in pharma, security, database, telephony industries.
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
Willing to relocate: Yes
Technologies: TypeScript, Angular, ReactJS, Next.js, Django, Flask, Node.js, Express.js, Python, MySQL, PostgreSQL, SQLite, MongoDB, CouchDB, Firebase, REST APIs, GraphQL, Docker, AWS (EC2, S3, Lambda), Azure Cloud Services, Git, GitHub, GitLab, CI/CD, Nginx, WebSockets, JWT, OAuth, PyTest, Jest, Cypress, Agile, Scrum, Figma, Adobe XD, Tailwind CSS, Bootstrap, Linux, Bash scripting, Trello, JIRA
Résumé/CV: https://drive.google.com/file/d/1EBQpTT0m9SCfGxg4BKc7ZBxF3nM...
Email: isaacgwamugi@gmail.com
I have over 5 years of professional experience building, deploying, and maintaining scalable fullstack applications. My recent focus has been on frontend engineering and UX design, where I bring a user-first mindset and strong technical execution.
One of my most impactful accomplishments was designing, building, and maintaining a full-scale healthcare platform from scratch that now serves tens of thousands of users across Kenya with 99.9% uptime. My work included: Building a powerful admin dashboard, Implementing features like advanced search, invoice generation, billing, live location matching, and secure health data management compliant with international standards.
I’m available to start immediately, and ready to collaborate with teams or solo on impactful digital solutions.
Location: Curitiba, Brazil
Remote: yes
Willing to relocate: no
Technologies: TypeScript, JavaScript, Python, Redis, MongoDB, PostgreSQL, MariaDB, Angular, ExpressJS, AWS, Rust, Axum, HTMX and TailwindCSS.
Résumé/CV: https://www.linkedin.com/in/adelmo-junior-2a576b156/ | PDF on request
Email: development@silvajunior.dev
I'm a software engineer working to help people build products and deliver value to their customers.
I can help build: - web applications using modern principles with the latest technologies (Angular, React, TypeScript, Vue, TailwindCSS, HTMX); - services that monitor equipments using telecommunications protocols (SNMP, NETCONF, TR-069); - serverless programs on any business domain to help reduce costs and increase availability (AWS Lambda); - microservices that expose REST APIs for consumption using battle-tested frameworks (SpringBoot, Quarkus); - data processing applications and services that consumes streams of data using common parsing techniques (Rust with Nom); - small CLI apps to help automate common tasks (Rust); - integration of different services using distributed log (Kafka, AWS SNS), WebSocket (with NodeJS) or with simple HTTP requests; - proper documentation for common services using OpenAPI specification and/or frameworks such as Diátaxis (Swagger)