Sole Back-end Engineer
2019 - 2020Freelance Software Engineer via Toptal- Implemented and extended the back end in multiple areas including building a scheduler, payment functionality, leaderboards, push and email notifications, site security, and DevOps functionality.
- Led communication and design process for all back end efforts.
- Built data ingestion pipelines for multiple data sources using AWS technologies.
- Developed safe automated deployment system and mirrored development environment.
Technologies: Amazon Web Services (AWS), SQL, Flask, AWS, PythonCore Software Engineer
2017 - 2018Simon Data- Co-built the proof of concept of a real-time event processing system, and built significant pieces of the production system.
- Co-implemented ML prediction models over marketing data, training, and prediction.
- Designed and implemented infrastructure for ingesting and analyzing enterprise-scale data streams from multiple sources.
- Served as the tech lead for a stats visualization project, optimizing a visual stats analysis and its back end on Redshift.
Technologies: Amazon Web Services (AWS), Elasticsearch, Hadoop, Python, Relational Databases, AWS DynamoDB, State Machines, AWS Lambda, Redshift, AWSSoftware Engineer
2015 - 2017Bandcamp- Built the back end for an autocomplete search overlaying keyword search.
- Assessed and optimized database usage and queries across the codebase.
- Contributed to in-house keyword search algorithms, recommendations engine, UI, and other miscellaneous projects.
Technologies: JavaScript, SQL, RubySenior Software Engineer
2011 - 2015Akamai Technologies- Served as a member of the “Scoring and Topology” group, which developed technologies to discover the topology of the internet. Promoted to Senior in 2013.
- Owned and had a significant role in the research and design of multiple components, including ping and trace systems, BGP route processing, work on our internal representation of IP space, load estimation, and more.
Technologies: Objective-C, Systems, Distributed Systems, BGP, SQL, C++Software Developer
2009 - 2011Wayfair- Re-architected and implemented keyword search system using Lucene and Solr.
- Re-architected faceting and facet-like product browsing systems.
- Initiated and co-designed high volume clickstream analysis.
- Developed back-end admin tools, UI/front-end work, and large data query optimization. Results included ~40% CPU usage drop on database slaves.
Technologies: Netezza, Hadoop, SQL, PHP, ASP, Solr, Apache Lucene
Matt Goldfield
Full-stack Developer in Northampton, MA, United States
Member since December 30, 2018
Matt has been a software engineer for a little over twelve years. He enjoys math, systems, and people. He has worked at early startups, more established small-medium teams, and large companies. He has worked as an individual contributor and as part of a team. He loves delving into interesting problems and building applications that people want to use. Matt has significant experience in back and front-end web development, as well as systems and application development in a broader setting.
Matt is now available for hire
Portfolio
- Freelance Software Engineer via ToptalAmazon Web Services (AWS), SQL, Flask, AWS, Python
- Simon DataAmazon Web Services (AWS), Elasticsearch, Hadoop, Python...
- BandcampJavaScript, SQL, Ruby
Experience
- C++ 12 years
- Full-stack 12 years
- SQL 10 years
- Python 8 years
- JavaScript 6 years
- React 4 years
- Machine Learning 4 years
- AWS 4 years
Availability
Part-time
Preferred Environment
Amazon Web Services (AWS), Swift, Apache Lucene, PostgreSQL, JavaScript, AWS, C++, Python
The most amazing...
...project I've built and took to fruition in enterprise level environments are proofs of concept for Simon Data (more details in the portfolio section below).
Employment
Experience
- Real-time Event Processing System
For Simon Data, I co-built a proof-of-concept for a real-time event processing system using AWS lambda, step functions, and various AWS databases, and then helped lead a team to implement an enterprise-level version.
- Autocomplete Search
For Bandcamp, I built the autocomplete search function for their website, augmenting their in-house search functionality and also building a significant portion of the UI around it.
- Rearchitected Search Using Lucene
For Wayfair, I rearchitected their in-house search to use the inverted index model provided by Lucene and built a front-end based on modified SOLR. Also built a processing backend using Hadoop.
- BGP Route Processing
For Akamai, I re-architected their BGP processing system for internet route discovery, which is used to learn canonical BGP routes on the internet and then help direct traffic for better efficiency.
Skills
Languages
C++, SQL, Python, Swift, XML, C, JavaScript, PHP, Ruby, Bash, Java, Perl, Objective-C, Lisp, HaskellLibraries/APIs
Node.js, React, Apache LuceneParadigms
Web Architecture, Functional Programming, Data SciencePlatforms
Amazon Web Services (AWS), AWS Lambda, Google Cloud Platform (GCP), AWS KinesisOther
AWS, Full-stack, Technical Leadership, Data Engineering, Linear Algebra, Discrete Mathematics, Algorithms, Software Development, Cloud, WebSockets, APIs, AWS API Gateway, Machine Learning, Statistics, Deep Learning, BGP, Distributed Systems, Systems, State Machines, RSS FeedsFrameworks
Hadoop, Django, Flask, ASPTools
Jupyter, Apache, Amazon Cognito, GDB, AWS Step Functions, SolrStorage
MySQL, Elasticsearch, Redshift, AWS DynamoDB, Netezza, Relational Databases, PostgreSQL, Google Cloud, RocksDB, MongoDB, Cassandra
Education
- Master of Arts degree in Computer Science2005 - 2007Brandeis University - Waltham, MA
- Bachelor of Arts degree in Mathematics2001 - 2005Carnegie Mellon University - Pittsburgh, PA
