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

Hi, I'm Gene and I've been building lean, high-performance web apps, conversion focused ecommerce, and bespoke marketing sites for the last 13 years. With clients ranging from early-stage nonprofits to Fortune 500 companies (Amazon, Samsung, GE, McDonalds, Mars Inc), I help businesses launch clean, functional, growth-oriented digital products.

SERVICES:

- Custom Web Apps: fast, scalable, and designed to grow with your goals.

- E-commerce Solutions: smooth checkout flows, Stripe/SamCart integration, and optimized for conversions.

- Marketing & Landing Pages: high-impact, fast-loading experiences that convert visitors into customers.

LINKS:

Website: https://lansky.tech

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

Select Projects:

GMB Fitness App - https://app.gmb.io

Samsung Galaxy Amazon Store - https://lansky.tech/work/samsung-amazon-experience

Compute Prices - https://computeprices.com

WHY WORK WITH ME:

- I focus on starting small, iterating quickly, and building exactly what your users and your bottom line need.

- Transparent and straightforward pricing.

Technologies: Typescript, Next.js, Nest.js, Node, AWS, Streaming Video, HTML, CSS, Wordpress, Craft CMS, SQL & Postgres

Ready to start? Send me a note - gene[at]lansky.tech

I'm a programmer with more than 10 years experience, primarily working remotely on a freelance or contract basis. My recent work has fallen into two main areas:

Scientific / numeric computing: e.g. I've contributed to research projects on quantum error correction and probabilistic programming languages. Tech: Python, NumPy, JAX, PyTorch, Matplotlib, JavaScript.

Backend web dev: e.g. I worked at a tiny start-up where I built a web app for automatic meeting scheduling. Tech: Python, Flask, SQLAlchemy, PostgreSQL, Celery, OAuth, Google Calendar APIs, AWS.

Please feel free to get in touch if you have a project (of any kind!) you think I might be able to help with, I'd be happy to chat.

More info and contact details on my website: https://paulhorsfall.co.uk

I am a backend expert, having built and maintained mission critical, low latency and highly available systems for several 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 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 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 ~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++, SQL, NoSQL, Go, Golang, Docker, Kafka, Redpanda, PySpark, Spark, Terraform, AWS, Azure, Redis, Postgres, MySQL, SQL Server, SAP HANA, LDAP, Active Directory, OAuth2, Git, Linux, Bash, Windows, Cursor

Experience: 5 years backend development (can do full stack). I had worked on developing an internal CRM for an insurance-related company , an inventory management system for a retail company, and most recently LLM-assisted tools for a media services company.

Technologies: Python, Javascript, Nodejs, Django, Starlette, Express, Docker, Azure/AWS, Amazon Selling Partner API, OpenAI API, Self-hosting LLMs/VLMs

Happy to chat and help with your projects. More info & contact: https://neilvan.com/