Enhance your Applications with Event-Driven Architectures on AWS

As an Advanced AWS Consulting Partner, Qalius has the expertise to develop custom event-driven applications leveraging AWS services. Our event-driven applications are cost-effective and scalable because they run code only when your business needs it.

A Unique Approach to Event-Driven Applications

At Qalius, we specialize in web applications that use on-demand computing services from AWS. We combine general-purpose compute services, such as AWS Lambda, with specialized services, such as the AWS artificial intelligence services, to implement a custom solution that suits your unique requirements. Event-driven architectures from Qalius link together the AWS services to create scalable solutions where you pay only for what you use.

Leverage the Power of Event-Driven Architecture with AWS Lambda

With AWS Lambda, you can run code without provisioning servers or containers. In an event-driven architecture, a business’s needs, such as a file to ingest or a transaction to process, trigger the code execution when you need it. With its pay-as-you-use model, AWS Lambda offers fantastic economies of scale – you only pay for the time it takes to run the code.

At Qalius, we have the expertise required to build custom applications using AWS Lambda. No matter the complexity of your application, our AWS and web application specialists will develop the right event-stream processing solution.

The Benefits of Event-Driven Architectures

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Cost Optimization

When you use an event-driven architecture, activity in your business triggers resource provisioning. You don’t pay for idle resources, so the solution has low AWS service costs that scale with the event volume.

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Near-Real-Time Processing

The components of an event-driven application architecture are connected together, so that an event in one place, such as a transaction submission, triggers processing. The result is near-real-time communication between application components to recognize a triggering event, process the event, and deliver an outcome for your business.

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Reliability

Event-driven application architectures have components that are loosely coupled through an event bus. These architectures are fault-tolerant when they are designed to queue new events until processing capacity becomes available. The result is an application that copes with the temporary loss of a third-party service or the failure and retry of an individual transaction.

Why Choose Qalius for Your Event-Driven Application Architectures?

Qalius has the expertise to handle complex event stream processing and has experience developing event-driven solutions for customers across a range of industries.

Custom Web-Application Development for Financial Services Using AWS Cloud-Native Technologies

Qalius uses the capabilities of AWS to develop secure applications that meet your unique requirements. AWS provides a vast portfolio of data analytics services, artificial intelligence services, encryption services, and tooling for integrating to other systems to quickly deliver the features you need.

Security for your Business

Qalius architects your application and the underlying AWS services to work together like a key in a lock. The least privilege configuration ensures security and privacy for your business and your customers.

Solid Transactions

Your application has to always look after your customers, so Qalius ensures it gracefully copes with failures in third-party systems. Secure cloud storage and encryption support reconciliation and audit processes. 

AWS and Application Development Experts

Our team of AWS application development specialists can update your existing applications and develop custom applications that scale to match the growth of your business.

Serverless Applications Specialists

Event-driven architectures naturally lend themselves to serverless architectures. Serverless architectures use serverless compute services such as AWS Lambda with other serverless solutions such as DynamoDB for database, and API Gateway to bring it all together. We specialize in custom event-driven applications built on serverless architectures to deliver low-cost and scalable solutions for your business.

A Custom Approach

There is no one-size-fits-all when it comes to complex event processing. We take a tailored approach to event-driven design to build the best application for your unique business requirements.

Use Cases of Event-Driven Architecture

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Run Daily Tasks

Execute periodic functions such as data aggregation, report generation, or archiving.

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Receive Real-Time Notifications

Deliver a real-time event notification to provide near-real-time visibility for your business.

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Process Discrete Transactions

Dynamically execute transactions for processes such as updating third-party systems, transforming input files, or near-real-time analytics.

Learn Why a Simple Lift and Shift Doesn't Suffice for Your Mission-Critical Applications

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Our Event-Driven Design Process

We will work closely with your team to understand your existing processes and your current needs to ensure we offer the best possible outcome for your business.

Analyze existing process

Our team will work with you to identify the triggering process events and input data types, whether files, transactions, or third-party actions.

Identify desired outcomes

We will work with you to identify the required outcomes and define the data processing steps.

Implementation

We will update your existing application, or build an entirely new application by leveraging AWS services such as AWS Lambda.

Custom Web-Application Development for Financial Services Using AWS Cloud-Native Technologies

Qalius uses the capabilities of AWS to develop secure applications that meet your unique requirements. AWS provides a vast portfolio of data analytics services, artificial intelligence services, encryption services, and tooling for integrating to other systems to quickly deliver the features you need.

Security for your Business

Qalius architects your application and the underlying AWS services to work together like a key in a lock. The least privilege configuration ensures security and privacy for your business and your customers.

Solid Transactions

Your application has to always look after your customers, so Qalius ensures it gracefully copes with failures in third-party systems. Secure cloud storage and encryption support reconciliation and audit processes. 

Hear What Our Clients Have To Say

“Qalius was able to quickly understand the key business needs and turn around a solution that met our requirements. I was impressed with the professionalism and appreciate them meeting the timeline.”

Denis Peyregatt, Vice President and General Manager
Sym-Tech Auto Finance Inc.

“The solution from Qalius is solid and secure. The Qalius software, running on AWS, is enabling us to grow without any concern for how fast we add customers and transactions.”

Richard Kopman, CEO
Pllenty Payment Solutions Inc.

“I run my business on Qalius software because they implement the changes I need as my business grows. Qalius acts like part of my team, and I won’t use anybody else.”

Ali Ebrahim, Chairman

ITC Grain International Inc.

“I call Qalius my Canada Pros because they give me the answers I need before I even know what to ask.”

Qasim Habib, CEO
Quality Punch Inc.

“The Qalius team are true professionals, a pleasure to work with. They just get it.”

Ryan Swift, Owner
Micrylium Laboratories Inc.

“The Qalius deployment to AWS is a key contribution to the automation of CCIL certification programs. We love working with Dan and the highly professional team at Qalius and we hope to do more projects with them.”

Nabil Kamel,
Program Manager
CCIL Certification Programs

“Thank you sincerely for clearly outlining our options. Communication and responsiveness are some of the most impressive aspects of working with Qalius!”

Wei Wong,
Marketing Strategist,
Arani Systems Corp.

“Qalius was great to work with. They responded very quickly to our time-sensitive needs with expert solutions that fit our circumstances. We have been very happy with how responsive and proactive they have been.”

Woodrow Rosenbaum,
Founder and CEO,
With Intent (GIV3 Foundation)

“The Qalius team was extremely helpful and responsive. We were working within a tight timeline and they came through for us. With good fortune we will be working with them again in the near future.”

Will Harris,
VP Sales,
ACCOUNTabill

“Qalius was able to quickly, confidently, and effectively lift-and-shift the entire stack into AWS without a hitch. The team at Qalius are a pleasure to work with.”

Mike Greenspan, Development Manager
Enthusiast Gaming

“Qalius was extremely responsive and flexible while developing our website. This was especially appreciated as we were responding to the COVID-19 pandemic. They took the time to answer all of our questions and to understand our needs and direction.”

GinaBeth Roberts,
Regional Manager of Editorial
and Digital Communications Horizon Health Network

“The Qalius team did a great job implementing Amazon QuickSight from the start to the end. Their level of expertise on AWS is exceptional. We look forward to future collaborations.”

Florian Allkanjari, VP Technology Operations
Dealer-FX

“Qalius came highly recommended to us by AWS. Involving them early in the concept development stage of Picturethis3D was one of our best decisions. Their service is always friendly and highly professional.”

Eevi Jensen, Founder and CEO
Picturethis3D

“Qalius is great to work with. I have partnered with them on multiple projects. Their work is always top quality, and comes in on-spec and on-budget.”

Adam Sugden, Vice-President Risk and Operations

Twenty-First Financial Inc

“Qalius’ approach to development has impressed us from day one. They have done an excellent job understanding our unique needs and translating them into a product that has exceeded our expectations. We are impressed with their professionalism and commitment to client satisfaction.”

Carlo Buffone, Founder

C2 Fusion Capital

We Are an AWS Advanced Consulting Partner

As an AWS Advanced Consulting Partner, Qalius has the verified knowledge, experience, resources, and customer success to create AWS cloud-native web applications through our custom web application development services.

Solution Provider

Qalius is authorized to deliver complete solutions that combine services from Qalius with consumption-based pay-as-you-go billing for AWS services.

Public Sector Partner

Qalius is authorized to deliver solutions on AWS to public-sector customers in Canada including governments, not-for-profit entities, and healthcare providers.

Immersion Day Partner

APN Immersion Days are workshops to introduce your employees to the AWS platform using presentations and hands-on labs prepared by AWS Solutions Architects. Qalius is an authorized Amazon Partner Network (APN) Immersion Day partner.

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Frequently Asked Questions

Event-driven application architectures are built from components that each perform a specialized process when triggered by an event. The event is usually the arrival of an input that needs to be processed. The input could be a transaction submitted to your business, the arrival of a file to process, or intermediate outputs from earlier stages of the application process.
Event-driven architectures are applicable in countless use cases. For example, an application could recognize that a picture has been submitted (a triggering event), use the Amazon Recognition service from AWS to see if it contains any cats (event processing), and then updates a cat counter (the output) with the number of cats spotted in pictures this week.
Event-driven architectures should implement their event processing in discrete process steps. The steps should be decoupled by queuing work in between process steps. The queues ensure that transactions don’t get lost if a process step is temporarily unavailable. Event-driven architectures should be built on on-demand services such as AWS Lambda so you only pay for cloud services when there is a triggering event that requires processing.
As defined by AWS, AWS Lambda is a serverless, event-driven compute service that lets you run code for virtually any type of application or backend service without provisioning or managing servers.
AWS Lambda has native support for several runtimes enabling your code to be written in Node.js, Python, Go, Ruby, .NET, and Java. Qalius recommends considering the breadth and depth of expertise in your organization to be sure you can support the solution long-term. Runtimes such as Node.js and Python initialize quickly so they are a good choice for use cases where executions are intermittent and low latency is important. Java may take longer to initialize, but the code may execute quickly, which can reduce cost in use cases that have long-running processes.
The AWS Lambda service was launched in 2014 and has benefitted from many years of refinement with large and small global workloads. At Qalius, we especially appreciate that AWS Lambda integrates easily with many AWS services to reduce time-to-market for custom web applications.