Ask HN: Freelancer? Seeking freelancer? (November 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.
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Location: San Francisco, CA
Remote: OK
Willing to Relocate: No
Programming Languages: Ruby, Scala, Javascript, Python, TypeScript, Haskell, Scheme
Programming Strengths: Data Structures and Algorithms, Data Engineering, Programming Language Theory, Type Theory, No-Code, AI&Prompt Engineering, Complex & Unusual Domains (Healthcare, Fintech, Music, Arts, Sciences)
Frameworks, Databases & Tools: Vue, React, Rails, Flask, Postgres, HBase, MongoDB, Kafka, Jenkins, AWS, Docker
Other Skills: Leading Teams & Managing Projects, Productizing LLMs, Managing Interview Pipelines, Architecting & Implementing Greenfield Solutions, Education & Team Growth, Leading Communication and Coordination Between Stakeholders Across Teams and Organizational Silos
CV: Available Upon Request
Email: [email protected]
I am a seasoned (>15 years experience) full-stack staff-level software engineer specializing in the backend, systems architecture, AI, platform engineering, internal tools, prototyping, and data engineering. In addition to strong programming and architectural skills, I'm a force multiplier for any team in either role through the three T's -- teaching, talking, and tooling. I also hold a US patent in the AI space.
In the past, I've taught a number of scientists and students to code in python; I've led and managed a number of high-impact engineering teams of up to 12; and pioneered a number of no- and low-code solutions for stream processing, data model and query generation, form building, workflow systems, and front-end construction for a variety of industries, including those with strong regulatory requirements and complex business rules such as healthcare and fintech. >10% of all medicare applications and millions of individuals currently flow through pioneering no-code systems I conceived and built and have ran in production for over a decade.
Most recently, I've built an events website that scrapes hundreds of thousands of sources (with custom scrapers for each) daily, an agent coding harness and software factory that teaches itself to perform better over time [much more than just your usual increasing skill texts, just ask me for more info], does bounded cost runs, and maintains intent across threads and users.
Prior to that, I've built an ai workflow engine and a platform for both minimizing hallucinations and working with documents that are far too large for existing context window inputs or outputs using a novel, patented process that I invented; and applied these tools to various contracted projects requiring analysis and and cross-checking of information and other forms of integrity across textual and video/audio corpus data in a variety of domains (fiction and non-fiction).
I am also an improvisational pianist, published poet, and I've created novel algorithms and tools for studying and composing both music and poetry, which I have given a talk on at a recent functional programming conference.
I have extensive experience working for and running startups (I've personally raised over $300k), software consulting shops, with some mid-sized company engineering experience as well; these give me a unique insight into speaking with customers and internal stake-holders, translating between engineering and other departments, gathering requirements, aligning stake-holders across departments on a vision and attainable timeline, and architecting/building/taking ownership over significant internal and customer-facing areas of responsibility.
If any of the above seems like a match for you and your organization or project, don't hesitate to reach out. I am available for both full-time positions and short- and long-term contracts.
Open to employment and contracts.
Recent work:
Looking for: 3-month contract Fullstack / Backend / Product Engineering role.Technologies & Skills: Software Engineering, Requirements Engineering, Data Modelling & Pipeline Design, Python, Golang, SQL, AWS, Azure, Kafka, DuckDB, Postgres, Airflow, Databricks, PySpark, Clickhouse, API design (full list on request) Experienced Engineer looking for Software / Data Engineering contracts.
I support you through all phases of the software development lifecycle - from planning and requirements engineering through development and testing until go live and maintenance.
9+ years experience in different industries (HFT, automotive, logistics, internet telecommunication technology, energy) helping customers to solve their problems.
As a seasoned software and data engineering expert, my extensive experience lies in developing and connecting software to various trading exchanges worldwide in different domains (inter alia XETRA, LSE, TSX, ASX, Binance, EPEX, Reuters,..).
Backend engineer working on systems that can prove what they do with data: Confidential computing, remote attestation, reproducible builds.
Very comfortable in Go, some experience in Rust. Familiar with Kubernetes and Postgres.
Most recently I spent 14 months contracting on OpenPCC, an open source variant of Apple's Private Cloud Compute. I'm now building verbond.dev, an open-source runtime that verifiably limits what untrusted code can do with your data.
I'm a good fit if:
- Your product or service says "we never see your data", and customers or auditors are starting to ask you to prove it.
- You've looked at Confidential Computing, but aren't sure where to start.
- You need a Go backend built or reviewed with data-privacy in mind.
Check out my services and prices at: https://www.willem.dev/services
If you're looking for a custom engagement, that's also possible, schedule a call here: https://www.willem.dev/schedule
Email: [email protected]
I'm a Rust systems engineer with 6+ years of experience building high-performance backend and distributed systems exlusively in Rust.
My experience includes distributed systems, concurrency, event-driven architectures, real-time stream processing, observability, and production systems operating at high throughput and scale.
Available for consulting and contract work, from short-term focused engagements to longer projects. I can help debug performance or memory issues, improve existing Rust systems, design architecture, or build backend/infrastructure components from the ground up.
Personal Website: https://pranitha.dev
Email: [email protected]
I advocate for, and practice, writing maintainable and well tested code. I prefer to keep the dependency list as small as possible, and every line is written by hand. Thought and care are put into the how and the why behind decisions.
Some technology keywords for searches: Go(Golang), Python, Docker, Dart/Flutter, Jenkins, Kubernetes, GitHub Actions, AWS, Azure, and GCP Contact info on my website: www.mongoose-studios.com