Alex Kwiatkowski
Agentic Software Engineer
21 years focused on Senior Software Engineer · Barefoot Coders
Senior engineer building reliable software systems where AI and infrastructure move quickly without compromising reliability, observability, or execution quality.
Hiring snapshot
Career arc
21
Years building software that helps teams move faster
Projects shipped
1
Projects and side builds that prove outcomes
Best hiring fit
Rust • Python • Go • TypeScript
Start a conversation and we can align on outcomes before scaling up.
- Steer stochastic agentic systems toward measurable business outcomes
- 1 production-oriented projects with real business outcomes
- Ensure secure operations for mission critical infrastructure
Experience
Senior Software Engineer
Barefoot Coders2026-02 — Present· Less than 1 month
Lead modernization partner helping teams modernize, migrate, and scale applications on GCP through practical execution plans and AI-enabled engineering practices.
Highlights
- Lead application modernization engagements from legacy assessment through cloud-native execution, with measurable quality and reliability goals.
- Facilitate Gemini & Antigravity classes for GCP customers to improve team velocity with AI-assisted workflows.
- Build migration roadmaps that reduce risk while improving observability, deployment confidence, and team autonomy.
Senior Software Engineer
Subzero Labs2025-08 — 2026-02· 6m
Building web3 products for web2 audiences with a focus on practical AI-assisted developer workflows.
Highlights
- Built agentic developer orchestration capabilities for team workflows.
- Implemented a multi-network blockchain explorer experience.
- Designed an EVM/SVM/Rialo cross-chain bridge.
- Reduced onboarding friction for engineers working across multiple ecosystems.
Lead Software Engineer / Senior Staff Software Engineer
Mechanical Orchard2023-03 — 2025-07· 2y 4m
Led mission-critical modernization across Fortune 500 platforms, evolving from lead engineering execution to senior staff ownership of distributed systems and data integration initiatives.
Highlights
- Led modernization of legacy COBOL, Db2, IMS, and z/OS systems into microservices platforms.
- Built connectors for zFTP, z/OSMF, and Db2 ODBC integration.
- Designed and delivered a mainframe MVS emulator for local test environments.
- Co-designed a data integration layer with Apache Arrow serving raw enterprise formats.
- Converted mainframe batch processing to GCP-based runtime patterns.
- Built a mainframe-inspired JES log scanner for operational visibility.
- Established a reliable GnuCOBOL build and extraction system with Nix flakes.
- Drove engineering collaboration across business-critical transformations for Fortune 500 modernization.
- Introduced reusable patterns for data tooling and enterprise batch migration.
- Partnered with engineers to improve observability, reliability, and on-call readiness across critical platforms.
Chief Technology Officer / Co-Founder
Atlas.xyz2022-02 — 2023-02· 1y
Joined through incubator channels and led Atlas from concept through growth while shaping product strategy, team build-out, and execution discipline.
Highlights
- Joined an incubator-backed environment and contributed cross-project engineering leadership.
- Defined roadmap and PRDs for Atlas' core NFT platform in a startup incubation context.
- Co-created Atlas, an NFT platform for aggregated insights, execution, and liquidity in tokenized markets.
- Recruited and shaped quant, ML, data, and full-stack engineering talent.
- Built a structured competitor matrix to drive product feasibility and roadmap decisions.
- Designed Kafka-based real-time NFT valuation pipelines ingesting 30GB/day.
- Delivered a mass image transformation and optimization service for NFT collection assets.
- Launched Grafana/Prometheus observability for uptime and latency control.
- Built and iterated a gas-efficient multi-venue aggregator contract model.
- Transitioned into co-founder ownership while staying accountable for shipping and reliability outcomes.
Founding Engineer / Senior Software Engineer
Chainlink2018-03 — 2021-03· 3y
Helped shape protocol infrastructure, UI, and data reliability systems during formative years of the protocol and product.
Highlights
- Maintained alerting systems monitoring on-chain/off-chain feeds for DeFi collateral risk.
- Contributed to core Ethereum protocol implementation and Solidity design work.
- Built core node UI/UX and API surfaces with Go, Node.js, TypeScript, and React.
- Migrated ingestion services to Apache Kafka-based event pipelines.
- Operated AWS CI/CD release cadences for production reliability.
- Standardized acceptance and testing practices for robust release quality.
Founder
Fremantle Industries2017-11 — Present· 8y 3m
Founded and led open-source infrastructure, data tooling, and custom software work across financial and data-heavy systems.
Highlights
- Built Keel, an Agentic SDLC management to minimize drift through planning, execution, and verification loops.
- Built DuckDB C++ ODBC extension and maintained deterministically reproducible Nix toolchains.
- Built Spoke, a universal data connector for broad integration patterns.
- Built Tai, a composable market data and execution toolkit for trading workflows.
- Built Prop, an open source trading platform for strategy research and operation.
- Developed AI-aware reactive data pipelines and SQL-native exploration tooling.
- Delivered client software across custom full-stack engagements.
Senior Software Engineer
Northpass2014-03 — 2018-02· 3y 11m
Built modern learning and data platforms with a focus on Ruby-based product delivery and database performance.
Highlights
- Delivered LMS product modernization with Ruby on Rails, Ember, and React.
- Tuned PostgreSQL for OLTP/OLAP workloads and bursty customer traffic.
- Created acquisition readiness through repeatable CI/CD practice on Heroku.
- Helped position team through acquisition by Gainsight.
Software Engineer & Project Lead
VMware / Pivotal Labs2011-05 — 2014-02· 2y 9m
Led client engineering across training, media, ticketing, and public sector systems in agile, high-velocity contexts.
Highlights
- Built high-scale LMS and publishing workflows for McGraw Hill using Rails and Ember.
- Delivered video management systems for Sony using Rails and Angular.
- Delivered a secondary ticketing system for Ticket Evolution.
- Built child welfare case management software for state government.
- Led kickoff, planning, standups, and mentoring for teams adopting XP practices.
- Supported acquisition transition to EMC and VMware.
Web Developer
NearMap Pty Ltd2009-06 — 2011-05· 1y 11m
Built map and geospatial product capabilities with strong frontend and API integration work.
Highlights
- Reverse engineered Google Maps JavaScript API behavior and map rendering.
- Built performant map interfaces with smooth Mercator tile experiences.
- Implemented location APIs with OpenStreetMap using C# and Mono on Linux.
- Supported acquisition integration into Thoma Bravo.
.NET Developer
Western Australia Department of Agriculture2009-04 — 2009-06· 2m
Delivered modernized CMS workflows and authentication systems for internal government operations.
Highlights
- Replaced legacy CMS implementation with DotNetNuke.
- Implemented LDAP integration for role-based access control.
- Built enterprise modules with VB.NET, C#, and SQL Server.
.NET Developer
Ready Flowers Limited2006-03 — 2009-04· 3y 1m
Led early-career full-stack e-commerce engineering and high-volume transaction systems.
Highlights
- Led e-commerce platform delivery using VB.NET, SQL Server, and jQuery.
- Built transaction pipelines that processed millions of dollars in card transactions.
- Established strong product reliability discipline in a founder-growth stage company.
Skills in action
AI + Data
5 capabilitiesLanguages
14 capabilitiesSystems
13 capabilitiesFrameworks & Platforms
13 capabilitiesEducation
Bachelor of Science (BSc) in Information Technology
Curtin University2003 — 2006