Data platforms and pipelines
Event-driven ingestion on AWS, streaming and batch processing on Databricks and BigQuery, all defined in Terraform with CI/CD behind it.
Bumble Bytes Ltd · Contract software engineering
Cloud, data and AI systems, built and run in production.
I'm Liam Warner. Through Bumble Bytes I design, build and run data pipelines, machine-learning services and backend systems. For the past year I've been on contract to a Fortune 500 media company, and I also develop formally verified FPGA image-processing IP.
Liam Warner
Founder and engineer, Bumble Bytes Ltd
Newcastle, UK
Newcastle, UK
Fortune 500
Current client: AI and data platform work for a media company, since Sep 2025
8 years
Building production software, since 2018
5 companies
Delivered for in media, health, games, real-time graphics and developer tools
£2m
Professional indemnity cover, plus £5m public liability, through PolicyBee
What I do
Full-lifecycle delivery across cloud, data and machine learning.
Most projects need more than one specialism. Bumble Bytes covers the whole lifecycle: design and estimates, build, deployment, and handover to your team.
Machine learning in production
Audio and video ML services: training-data tooling, labelling and review apps, model training and model-serving APIs, connected to the systems that use them.
Backend systems and APIs
Node.js, TypeScript and Python services, payments and authentication, test automation, and the pipelines that keep releases routine.
FPGA and digital hardware
Verilog image-processing IP with machine-checked proofs, signed off on AMD, Altera and Lattice parts and tested on Cyclone V hardware. I also run the same flow on other people's FPGA blocks, as a fixed-price sign-off and verification service.
RankFilter IP
Experience
Recent work
Recent contract and permanent roles. BSc Computer Science (3D Games), First-Class Honours, Sheffield Hallam University.
Sep 2025 to nowContract, via Bumble Bytes Ltd
Current
Current
Platform and Cloud Engineering Consultant
Fortune 500 media company
- Built real-time content ingestion pipelines on AWS, running event-driven serverless and container workloads defined in Terraform.
- Delivered audio and video machine-learning services, from training-data tooling through to deployed model APIs.
- Built internal annotation and review tools in React.
- Developed streaming data processing on Databricks and Delta Lake.
AWSTerraformPythonDatabricksReactDocker
2023 to 2025Permanent
Backend Developer
Thrive Mental Wellbeing
- One of two developers on the Node.js backend behind the company's modern and legacy web and mobile apps.
- Ran cloud infrastructure, test automation and CI/CD across several cloud providers and product types: serverless, auto-scaling services, BigQuery and S3.
- Worked directly with corporate clients, marketing and medical teams to scope, estimate and deliver features in an agile sprint cycle.
- Built Angular frontend components alongside the backend features.
Node.jsTypeScriptGCPAWSBigQueryAngular
2022 to 2023Contract
Backend and Game Systems Developer
Nimoyd, a Tencent-funded indie studio
- Designed and built a scalable backend for a mod and asset marketplace, comparable to the Roblox and Minecraft marketplaces, including payments, syncing and downloads.
- Integrated Epic Online Services, cloud saves and third-party OAuth login across Unity (C#) and Node.js.
- Created an incremental modding system on Unity's asset packages that kept player downloads small.
- Reviewed and supervised the work of a junior developer.
Node.jsUnity / C#StripeOAuth
2020 to 2022Permanent
Backend and Automation Engineer
ZeroLight
- Built a distributed, networked, graphical test-automation suite based on image analysis, combining Unity (C#), Node.js, Selenium and Python.
- Integrated it with React frontends. By the time I left it was in use across the company's whole product line.
PythonNode.jsUnity / C#Selenium
Selected work
Products and open source
Alongside client work, Bumble Bytes builds its own products.
RankFilter
Median, percentile and defect-pixel-correction cores for FPGA and ASIC video. A 5×5 median needs 52 comparators per pixel where column sharing, the lowest published count we know of, needs 63, and the cores use 75 % fewer LUTs than AMD's free Vitis median filter in the same flow. Every network is proved correct in Lean 4, and the cores run on Altera Cyclone V silicon.
Product page and demoGame Boy Image Converter
Turns any image into Game Boy or Game Boy Color graphics that respect the hardware's palette and tile limits, ready for GB Studio.
Live demo SourceTofu
An opinionated MVC framework for Node.js in the style of Laravel, with CLI scaffolding, an event system and cron-style timers.
Source
Toolbox
Technologies I use in production
Languages
TypeScriptPythonC#C / C++ElixirVerilogLean 4
Cloud and infrastructure
AWS Lambda, ECS, SQS, SNS, S3GCPTerraformDockerLinuxGitHub ActionsGitLab CIJenkins
Data and machine learning
DatabricksDelta LakeBigQueryPostgreSQLMongoDBFFmpegAudio and video ML
Backend and integration
Node.js / ExpressFastAPIREST APIsOAuthStripe2FAMQTT workers
Frontend and games
ReactSvelteVueAngularUnityDOTS / ECS
Hardware and verification
RTL designSymbiYosysVerilatorQuartusyosys / nextpnrFormal proofs
Working with Bumble Bytes
What clients get
- A senior engineer who owns the outcome: design, estimates, build, deployment and a clean handover.
- Clear communication with non-engineers. I've worked directly with clients, marketing and medical teams.
- Automated tests and CI on every project, and formal proofs where a mistake would be expensive.
- A UK limited company, fully insured for professional indemnity and public liability.
Engagements
Contracts and IP licensing
Remote contract engagements, fixed-price FPGA sign-off and verification, and licences for the RankFilter FPGA and ASIC IP. Send a short description of the work and I'll reply with availability and next steps.
[email protected]
Contact
Get in touch
For contract work, FPGA IP evaluation or anything else, email is quickest.
- [email protected]Contracts, licensing and general enquiries
- LinkedInLiam Warner
- github.com/sirprodigleOpen-source projects
- prodigle.devBlog and project write-ups
- Newcastle, EnglandRemote, or on site by arrangement
Fully insured
£2m professional indemnity and £5m public liability, through PolicyBee.
RankFilter FPGA IP
RankFilter has its own page with a live demo video, measured results on three FPGA families and a downloadable product brief.
RankFilter FPGA IP