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Make data and AI useful

Act on events as they happen, not after the nightly load

We build streaming pipelines that ingest and process high-volume events, so people and systems can act on current information.

In short

Real-time data processing handles transactions, sensor readings and system events as a continuous stream rather than in batches. Events are validated, processed over event-time windows and served to dashboards, alerts and other systems. It suits workloads where timeliness matters, and a time-boxed pilot can test whether streaming earns its place.

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01 The problem

What problem does this solve?

Some decisions cannot wait for a daily batch. A payment needs checking, a machine is behaving oddly, a network is degrading. If the data arrives hours later, the response arrives hours later too.

Streaming brings its own difficulties. Events arrive late or out of order, formats change, and a stalled stream has to be noticed and recovered. It should be used where timeliness matters, not by default.

02 What we build

What do we build?

  • Event ingestion from transactions, telemetry and database changes
  • Schema validation and data contracts for every event type
  • Stream processing with event-time windows
  • An operational store and real-time dashboards
  • Alerts and automated actions for downstream systems
  • Monitoring, alerting and a recovery design for each stream
  • A pilot that tests streaming against your real workload

03 Architecture

What does a typical architecture look like?

Typical architecture of a real-time data pipeline The flow runs from top to bottom. Event sources: Transactions and telemetry, Database change events. Streaming: Event streaming platform, Schema validation. Processing: Stream processing, Event-time windows. Serving: Operational database, Real-time dashboards. Actions: Alerts and automation, Downstream APIs. Monitoring and recovery for every stream. EVENT SOURCES Transactions and telemetry Database change events STREAMING Event streaming platform Schema validation PROCESSING Stream processing Event-time windows SERVING Operational database Real-time dashboards ACTIONS Alerts and automation Downstream APIs Monitoring and recovery for every stream
Events flow through a streaming platform with schema checks, are processed in time windows, and reach dashboards, alerts and downstream APIs.

04 How it goes

How does the work usually go?

  1. Decide whether streaming is needed

    We ask how fresh the data must be for the decision that depends on it, because batch or incremental loads can be simpler when timeliness is not critical.

  2. Prove it with a pilot

    A time-boxed pilot tests streaming analytics on representative events, against success criteria agreed first. It ends in a decision to proceed, revise or stop.

  3. Design events and contracts

    We define the event schemas and data contracts, the processing windows, and how late or duplicate events are handled.

  4. Build and test

    We implement ingestion, processing and serving, and test reliability, failure recovery and performance under load.

  5. Operate with monitoring

    We monitor data freshness, processing latency and recovery time, and review them as event volumes change.

Talk through your data

30 minutes, video call. Prefer to write? Send a message

05 Capabilities and stack

Which capabilities and technologies are involved?

  • Apache Kafka
  • Kafka Connect
  • Apache Flink
  • Spark Structured Streaming
  • Apache Druid
  • Apache Pinot
  • Amazon Kinesis
  • Azure Event Hubs
  • Google Pub/Sub

The final stack follows your requirements and what you already run. How we choose technology

06 A typical situation

What does this usually look like?

An operations team follows equipment or transactions through reports that arrive after the fact, so problems are found when the working day is already over.

We stream the events from one source, process them continuously and show current status with alerts, tested first in a bounded pilot.

07 Questions

Questions people ask

Not always. Batch or incremental pipelines are simpler where nobody acts on the data straight away. We ask which decision depends on fresh data before recommending streaming.

Sources such as transactions, equipment telemetry, network events and meter readings, where timely processing supports operational intelligence. The test is whether a decision changes when the data arrives sooner.

Monitoring and recovery are designed for every stream, with alert thresholds and escalation paths agreed in advance. Recovery time is one of the measures we track against a baseline.

08 Who it suits

Who does this suit?

Talk through your data

Tell us where your data lives today and what you need from it. An engineer will help you decide what to build first and what can wait.

30 minutes, video call. Prefer to write? Send a message

What happens next

  1. You pick a time, or send us a message.
  2. A person at Nexstella reads what you shared before we talk.
  3. You leave with a clear next step, even when that step is to wait.