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

I have a PhD in computer engineering, specializing in operations research, optimization, constraint programming, and integer programming. As an operations research 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

I'm a Splunk Certified Architect with 20 years experience with OS, platform, HPC and adjacent technologies, looking for short-term engagements. I currently run a multi-clustered Splunk infrastructure built by me, in AWS and on-prem, with 15TB per day ingest by volume.

Résumé/CV: https://drive.google.com/file/d/1CjaIKN8WAPcpWOFqB3RR2MZmhH4... Email: in my CV and HN profile

Technologies: Senior/Lead/Generalist, still hands on, and currently mostly working on backend development and java. I have considerable experience on the Java, Microsoft C#/.NET stack, Javascript and AWS. See below for a larger list. I used to have a fair amount of experience on the frontend/JS in the past but now I prefer to stick to the backend, unless the role is lead/managerial. See below for keywords and buzzwords.

Résumé/CV: https://bit.ly/3Wtvj8E

Email: dennis.mathew2000 #at# gmail dot com

*These are keywords/buzzwords:*

    Tools/languages/applications - Java (J2EE) - Servlets, JSP, JDBC, EJB, JSF (Java Server Faces) , Java 8, Java 11, JavaMail, Core Java, Junit, ANT, Jdk, Maven, log4j, SQL, T-SQL, PL/SQL, stored procedures, data structures, algorithms, cron jobs, Quartz, HTML, HTML5,  XML, XSD, DTD, REST, SOAP, SOAP UI, Web Services (SOA), WSDL, CXF, Axis,  Jersey, XPath, XSLT, iText, iTextSharp, AJAX, VoIP, SIP, JavaScript, EXT JS, CSS, CSS3, Object oriented programming, Data Structures , Collections, Common Algorithms, Optimizeit, javadoc, Popchart Java, VtigerCRM, Smarty,  jQuery, JQuery UI, phpMyAdmin, ASP.NET, .NET, Visual Studio.Net IDE, NetBeans, Eclipse, VJ++, VSS, GIT, SVN/Subversion, Dreamweaver, TOAD, Winmerge, Microsoft Visio, Microsoft Project, Mantis, Java on Android, Android SDK, AVD Manager, Android Emulator, Android Debug Bridge,  Spring Boot, Spring REST/JSON webservices,  API design and development, monolithic  and microservices architectures, Spring JMS, Spring  Zuul API gateway, Struts, EJB, Hibernate, Wireshark, Apache Camel, OSB, UC4, Clearcase, Splunk, Crucible, JMS, VB script, bash script, Python(beginner)  Active MQ.  MQSeries/WebSphere MQ/IBM, Kafka, CI/CD, Jenkins, UrbanCode Deploy, QuickBuild,  Sonar Qube. Checkmarx, Fortify, Apache JMeter, Mulesoft API Designer, Swagger, OAuth 2.0/Okta/Jwt, LINQ, DHTML, XHTML, ASP, PHP, C#, Windows Forms, Crystal Reports, VB6, ActionScript, Flash,  Camunda Modeler, Camunda Engine, Work Flow Engine, BPMN,  

    Databases – Oracle, SQL Server, MySQL,  Postgres, MS Access, SQLite, NoSQL/Mongo

    O.S – Primarily Windows and rest Unix (AIX, Solaris, HP) and Linux (Centos / Servers and Android)

    Cloud - Kubernetes, AWS( EC2, EBS,S3, RDS, lambda etc.) Google Cloud (Data Store, Storage Bucket, Pub/Sub) Docker

    Servers – Apache, IIS, node.js Tomcat/Clusters/Load Balancers, WebLogic, JBoss, Asterisk, , Jserv, GNU Jsp

Full-stack JavaScript-focused engineer/entrepreneur with lots of experience in building scalable single page apps, multiplayer web games, web3, simulating networked LLM-augmented agents, building transformers and other neural networks, all sorts of things. Product-oriented, executive and leadership experience, capable Linux sysadmin.

Available for consulting, projects, anything web or AI.

email: hello @ bad-software dot com

GitHub: https://github.com/soulofmischief

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

- 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/>