Demetheus Platform Engineering

Custom data and ML platforms, engineered to last.

The team behind Kairos designs and builds bespoke data and machine learning platforms for companies that have outgrown off-the-shelf tools. Senior engineers, end to end, in your own cloud.

  • 50%Lower cloud cost on a serverless data and ML platform we built
  • 70%Lower processing latency, replacing legacy batch jobs with streaming
  • 8+Years building data and ML platforms in production
  • 6Certifications across AWS, Azure, Google Cloud and Kubernetes
01What we build

Every layer, one team.

From ingestion to models in production to the tools your teams use every day, designed together so every layer is built to work with the next.

01

Data platforms

Streaming and batch pipelines landing in an Apache Iceberg lakehouse, with schema evolution, governance and the throughput to grow with you.

  • Kafka
  • Spark
  • Glue
  • Iceberg
02

ML platforms and MLOps

Feature pipelines, training, deployment, monitoring and automated retraining, so models move from notebook to production and stay accurate there.

  • SageMaker
  • Pipelines
  • Model monitoring
03

Real-time personalisation

Event-driven recommendation and ranking systems with live feedback loops, built on AWS Personalize, SageMaker or your own models.

  • Personalize
  • Event-driven
  • Ranking
04

Cloud and Kubernetes

Secure, cost-aware infrastructure on AWS, Azure and GCP, defined as code, with Kubernetes underneath and security built in from day one.

  • AWS
  • Azure
  • GCP
  • Kubernetes
05

Data products

The layer your teams actually use: dashboards, internal tools, APIs and integrations on top of the platform, from React front ends to native apps.

  • React
  • APIs
  • Dashboards
06

Architecture and cost reviews

An independent review of your existing data and ML stack, with a prioritised plan to cut latency, cloud spend and operational risk.

  • Audit
  • FinOps
  • Roadmap
02How we engage

Clear scope. Steady delivery.

  1. 01

    Discovery

    A fixed-scope assessment of your data, workloads and goals, ending in an architecture and roadmap you own, whether or not we build it.

  2. 02

    Build

    Senior engineers design and deliver the platform in your cloud, in milestones, with working software and clear reporting at every step.

  3. 03

    Handover

    Documented, tested, infrastructure-as-code systems your team can run, with ongoing support and optimisation for as long as you need it.

03Why Demetheus

A product team, building yours.

  1. 01

    Senior engineers only

    Your platform is designed and built by principal-level engineers, not handed down to a junior bench.

  2. 02

    Your cloud, your IP

    Everything runs in your own AWS, Azure or GCP account, and every line of code and documentation is yours.

  3. 03

    Proven in production

    The same streaming, lakehouse and ML stack we run in Kairos, our own product, every day.

  4. 04

    Certified across clouds

    AWS, Azure, Google Cloud and Kubernetes certifications, including Solutions Architect Professional and Expert.

04Case studies

Platforms in production.

Drag or swipe to explore. Select any case study for the full architecture.
automated ad workflowsReact CMSiOS · SwiftLambdaAurora MySQLDynamoDBShopify APIsFacebook AdsGoogle AdsReact-Visdashboards,orchestrationReact CMSiOS · SwiftLambdaAurora MySQLDynamoDBShopify · Ads APIsautomated Facebook + Google ads
78%lower daily ad spend

Commerce application platform: web, iOS and ad automation

An application platform spanning a React CMS with React-Vis dashboards and workflow orchestration, a native iOS app in Swift, and a serverless backend on Lambda, Aurora and DynamoDB, integrated with Shopify and automated ad workflows on Facebook and Google Ads.

ShopifyFacebook AdsMintsoftAPI GW · LambdaReact · AmplifyCognitoGitHub ActionsOne view: ad performance · sales velocity · fulfillmentShopifyFacebookMintsoftAPI GW · LambdaCognitoReactCI/CDads · sales · fulfillment in one view
60%less time switching tools

Unified e-commerce operations CMS

A custom content management system that unifies Shopify, Facebook Ads and Mintsoft into one control panel, so teams manage assets, track analytics and run workflows without switching between dashboards.

ShopifyEventBridgeKafkaLambdaElasticsearchKibanaCheckout · Post-PurchaseWeb Pixel · FunctionsREST + GraphQL Admin APIServerless streaming in place of legacy EC2 / SQS jobsShopifyEventBridgeKafkaLambdaElasticsearchKibanareplaces legacy EC2 / SQS jobs
Real-timeingest, at lower cost than Blendo or Stitch

Shopify commerce and real-time analytics pipeline

An end-to-end full-stack and data pipeline system for e-commerce: custom Shopify storefronts and apps on one side, and streaming capture and analytics on the other, replacing legacy EC2/SQS bottlenecks with a serverless architecture.

automated retrainingFeaturesPipelinesRegistryEndpointsExperimentsMonitoringRankingPredictionAnomaly detectionautomated retrainingFeaturesPipelinesExperimentsRegistryEndpointsMonitoring
10%sales increase the models contributed to

Production ML platform on SageMaker Pipelines

Distributed feature engineering and model pipelines on SageMaker with dataset versioning, experiment tracking and full model lineage, serving supervised, sequential and time-series models in production with continuous evaluation and automated retraining.

real-time feedback loopKafkaLambdaIceberg · S3PersonalizeGlue ETLSageMakerOptimized networking:minimal NAT andcross-VPC trafficreal-time feedback loopKafkaLambdaGlue ETLIceberg · S3SageMakerPersonalize
50%lower cloud cost

Serverless data and ML platform with real-time personalization

A fully serverless, production-grade platform on Kafka, Lambda, Glue and Apache Iceberg, feeding SageMaker and AWS Personalize to automate product recommendations with real-time learning feedback loops.

05Client reviews

In our clients’ own words.

Teams across six countries on working with us.

Drag or swipe to explore. Select any review to read it in full.
Seadog.ai, United States
5.0 out of 5Aug 2021 – Dec 2022

“Areeb did a terrific job on the development of a mobile application and the associated cloud service. Every week I looked forward to talking to him about progress. His communication and availability were outstanding, and his programming skills were impeccable. He was flexible to modify the app based on users' (and my) feedback, and he always implemented efficient solutions to the problems we posed. I was impressed by his work ethic. Areeb was often keen to learn how to use new libraries and APIs that would help the project advance. He helped me find and onboard additional freelancers to support the work. I thoroughly enjoyed working with Areeb and, if he is available, will likely have additional jobs for him in the future.”

Sunny.ie, Ireland
5.0 out of 5Aug 2018 – Feb 2019

“Areeb is without a doubt THE best contractor I have ever worked with. He is very knowledgeable, extremely responsive and very easy to work with. Areeb could easily interpret requirements, point out holes in my thinking and in general produced excellent code which has proven to be very stable. He works quickly and efficiently, is easy going and stress free. Very easy to work with. I’d have no hesitation in recommending Areeb and look forward to working with him again in the future.”

Matthew, United States
5.0 out of 5May – Oct 2021

“He is extremely professional and kind, and not only technically capable, but also willing to share and implement creative solutions as well. He usually responds immediately to any questions and is always available for a call.”

Körber, Germany
5.0 out of 5Sep 2019 – Feb 2020

“Thank you for the good work!”

Philipp Engelhard, Sweden
4.9 out of 5Aug – Oct 2016

“Areeb is an excellent worker, he completed the task to my full satisfaction. He is an extremely dedicated worker, a commitment I haven't seen before. Communication with him was easy and often, his English skills are excellent. He encountered a unforeseen big problem during the task, but took his time to solve it properly. He is willing to dig deep and learn new things if necessary.”

Benoit Lessard, Canada
4.9 out of 5Aug 2017 – Mar 2018

“Areeb is really someone nice to work with. He is very professional, he will take the time needed to discuss/explain any potential issues and he is very dedicated. You really feel like he wants to give you the best product possible, and the communications with him are always pretty clear. I really enjoyed working with him and I am very satisfied with the final product.”

Vincenzo Precisano, Italy
5.0 out of 5May 2018 – Feb 2019

“Everything was perfect as usual. Areeb is a very expert developer, honest, someone to trust. Professional but friendly as well. I hope to start new project with him soon.”

06Contact

Let’s rise together.

Early access to Kairos, or a platform built for your team: tell us what you are building and we’ll reply within one business day.