Jessica Kerr
where else to find them
website:https://jessitron.com
github:jessitron
bluesky:jessitron.bsky.social
linkedin:jessicakerr
instagram:jessitronica
what they talk about
all 24 in the filters
where they keep going back
- GOTO Chicago4 editions2014–2020
- Philly ETE3 editions2015–2023
- Craft Conference3 editions2021–2024
all 22 in the filters
on a stage with
- Alexey Shipilevonce
- Anna Chernyshevaonce
- Avdi Grimmonce
all 23 in the filters
who talks about the same things
- Richard Feldman32 talks
- Evan Czaplicki15 talks
- Bruce Tate24 talks
- Bodil Stokke10 talks
- Einar W. Høst30 talks
- Dave Thomas33 talks
| title | conference | date |
|---|---|---|
| Keynote: Who are we Now? | RubyConf 2026 | 2026-07-14 |
Developers lose intimate ownership of code when agents write it but regain confidence by turning authorship into testable artifacts: unit and Playwright tests… | ||
| What is your app really doing? Make it tell you with OpenTelemetry. | Java ON 2024 | 2024-11-12 |
Claims that OpenTelemetry lets production systems tell you what happened, demonstrates a Java setup using the OpenTelemetry Java agent plus Docker Compose… | ||
| Java ON 2024 Day 3 | Java ON 2024 | 2024-11-12 |
Panel shows practical wins: Java 21 virtual threads reduce blocking — a demo sends 32 concurrent requests against an 8-thread pool and drops total time from… | ||
| How to get smarter while doing your job | Craft Conference 2024 | 2024-05-30 |
Shows concrete experiments: reproducing environments with Docker/Helm/Terraform, using console.log and the debugger as microscopes, and treating telemetry as… | ||
| Experimenting in a Sociotechnical System | Swift Craft 2024 | 2024-05-21 |
Makes the concrete claim that observability needs tracing over logs and structured logs, using Honeycomb-style tracing to turn noisy clues into zoomable… | ||
| Keynote: Experimenting in a Sociotechnical System in Software Engineering | Swift Craft 2024 | 2024-05-21 |
Company value at Honeycomb treats changes as experiments and uses observability and feature flags as instruments: a session DB audit finds 5.99 million of 6… | ||
| "Observability for the Front End" | Frontrunners 2024 | 2024-03-08 |
Claim: OpenTelemetry can trace browser requests end-to-end but it’s partial and fiddly. Uses OpenTelemetry protocol with W3C traceparent headers, demo ties a… | ||
| Keynote: I Can Write the Code But Getting Something Done Is Another Matter | CppNorth 2023 | 2023-07-17 |
Company builds a schema caching service backed by a shared memcached shared cache and a client library so 70+ Shepherd ingesters stop hammering MySQL… | ||
| Your Distributed System is Talking to You: OpenTelemetry | Philly ETE 2023 | 2023-04-11 |
Modern observability uses distributed tracing with OpenTelemetry to turn requests into correlated spans and full traces; a demo app with about 10 services in 8… | ||
| REPLs All The Way Up: A Rubric For Virtuous Feedback Loops | Philly ETE 2023 | 2023-04-11 |
Argues that the REPL is a practical archetype for better feedback loops and gives a concrete rubric—Read–Eval–Print–Loop—to evaluate them. Demonstrates tools… | ||
| Going Deep on Gamification | YOW! Melbourne 2022 | 2022-12-08 |
Argues that slapped-on gamification — points, badges, leaderboards — reduces collaboration and skews behavior; instead design team agency by specifying… | ||
| Gamification without the Garbage | Craft Conference 2022 | 2022-06-02 |
Argues that scoreboards and leaderboards are corrosive and instead teams should design agency—concrete goals, rules, and abilities—using game design methods… | ||
| Using Serverless Functions for Real-time Observability | SREcon22 Americas | 2022-03-14 |
A sub-second query engine at honeycomb.io moves from RAM to local SSD to months of S3-backed segments, then parallelizes heavy queries by spawning 30,000… | ||
| Software Design: Beyond Boxes & Lines | YOW! 2021 | 2021-11-30 |
Claims that software design is participatory sense making and that the single leverage point is a shared language drive concrete practices: map capabilities… | ||
| Fast & Simple Deployments for Code & Infra | YOW! 2021 | 2021-11-30 |
Shows how Honeycomb uses CircleCI, Terraform (plus Chef and home‑grown scripts) to push green builds and deploy roughly a dozen times a day with ~3‑hour lead… | ||
| How we used serverless to speed up our servers | Strange Loop 2021 | 2021-09-30 |
Honeycomb uses AWS Lambda as a serverless-as-accelerator for Retriever to scale CPU on demand, cutting query latency by roughly an order of magnitude; median… | ||
| Systems Thinking for Developers | Craft Conference 2021 | 2021-06-02 |
Compares precise, von Neumann style logic with Bateson’s context‑first systems view and offers concrete patterns: versioned protocols and observability to… | ||
| How the industry moves on from Java 8? | jLove 2020 | 2020-12-04 |
Industry telemetry shows 75% on Java 8 and New Relic data hints at >80% across flavors, so adoption lags despite JDK 9–15 features. Migration pain points are… | ||
| Investigation & Creation of Software | GOTO Chicago 2020 | 2020-04-27 |
Argues that software work is science: form a theory, deduce a prediction, run experiments, and revise based on surprises. Demonstrates with a concrete CSS… | ||
| Keynote - Collective Problem Solving in Music, Science, Art... | RubyConf 2019 | 2019-11-18 |
Argues collective problem solving depends on concrete mechanisms: a living symmathesy where running software, IDEs, tests, logs and deployment pipelines… | ||
| From puzzles to products | O'Reilly Velocity Conference 2019 | 2019-06-10 |
Argues that programming is mostly about changing systems not just writing code, so priorities shift to designing change over purity of internal architecture… | ||
| The Origins of Opera and the Future of Programming | REdeploy 2018 | 2018-08-16 |
A historical claim ties the Florentine Camerata (~1580–1600, Florence) to the invention of opera by shifting polyphony to single melody with accompaniment… | ||
| Speaker Panel - Day 2 | REdeploy 2018 | 2018-08-16 |
Panelists argue resilience requires concrete practices not platitudes: adopt psychological safety, run postmortems and mindfulness exercises, and fund… | ||
| Software Automation in a Polyglot Stack | GOTO Chicago 2018 | 2018-04-24 |
Argues for bringing languages in only when they add automation or libraries, then wires them into the org with concrete artifacts: uses MakeDocs (Ruby) and… | ||
| Develop Your Development Automation | NDC Oslo 2017 | 2017-06-14 |
Live demo shows code that creates a new repository, populates it from a seed, enables Travis CI, encrypts secrets and opens pull requests across multiple… | ||
| The architects below | O'Reilly Software Architecture Conference 2017 - New York, New York | 2017-04-02 |
Point of sale software enforces a safety control loop from retail administration so cashiers must get approvals for discounts and the developer team adds a… | ||
| The Clockwork Gardener: Growing an Elm App With Templates | Elm Conf 2016 | 2016-09-15 |
Uses atomist editors to grow real Elm apps: creates a repo and Slack channel, adds three login fields and wires five edits per input (model fields, init… | ||
| Adventures in Elm | GOTO Chicago 2016 | 2016-05-23 |
A hands‑on demo shows Elm compiling to JavaScript, using elm-format, the HTML and Mouse packages and the elm package manager (which enforces semantic… | ||
| Microservice Panel | GOTO Chicago 2016 | 2016-05-23 |
Conference panel argues containers and automated ops enable microservices but warn they move complexity into contracts, tracing and ops. Typical sizing… | ||
| Adventures in Elm: Events, Reproducibility, and Kindness | Philly ETE 2016 | 2016-04-11 |
Elm compiles to JavaScript, enforces immutability and strong types, and ships a concrete event-loop Elm Architecture where a single update function + model… | ||
| Keynote: Elixir Should Take Over the World | ElixirConf 2015 | 2015-10-01 |
Claim: Elixir combines immutable data flow and namespaced code organization with the actor model running on the BEAM to get isolation, restart logic and real… | ||
| Functional Principles In React | React Rally 2015 | 2015-08-24 |
Claims four principles tie React and functional programming: composition, declarative style, immutability and isolation. Shows concrete tools: React with… | ||
| Contracts & Clojure: The Best-Yet Compromise of Types and Tests | Philly ETE 2015 | 2015-04-07 |
Shows how Prismatic Schema contracts plus test.check generators let Clojure code gain type-like guarantees by validating shapes at runtime and exercising them… | ||
| Concurrency Options on the JVM | Strange Loop 2014 | 2014-09-17 |
Contains concrete details: which thread pools (single, cached, fixed, ForkJoinPool), how to set keepAlive and daemon threads, when to call shutdown and… | ||
| Functional Principles for Object-Oriented Development | GOTO Chicago 2014 | 2014-05-20 |
This presentation was recorded at GOTO Chicago 2014. #gotocon #gotochgo
http://gotochgo.com
Jessica Kerr - Scala Developer @jessitronica
ABSTRACT
How is an… | ||
| Functional Principles for OO Development | Ruby Midwest 2013 | 2013-04-05 |
Claims six functional principles apply to OO Ruby and shows them on the Pickaxe CSV total example: replaces a god object with pure data-in data-out functions… | ||
| Git Happens | JDD 2012 | 2012-10-25 |
Explains why Git works by walking through concrete mechanics: SHA‑1 hashes, the commit DAG, staging area versus working directory, and commits as immutable… | ||
| Android Essentials | JDD 2012 | 2012-10-25 |
Covers concrete Android mechanics: using the SDK manager and ADB, creating AVDs, and picking an API level; how apps are actually four components (activities… | ||
| Functional Principles for Object Oriented Development | JDD 2012 | 2012-10-25 |
Six concrete principles (start with data in data out and include immutability, passing functions, strong typing and lazy evaluation) claim to halve effort on… | ||
| nothing matches | ||