Aristack
Aristack / What we do

OurServices

01

ProfessionalServices

Calypso specialists

A well planned, well supported implementation decides how long a system serves you. We have spent years working with global organisations in this region, and we pride ourselves on delivering Calypso on time and on budget. Whether you run one branch or many, we bring a standard method and a real understanding of how African markets work.

01.1

GreenfieldImplementation

A new Calypso installation is the best chance you will get to simplify how your treasury works. We build on the Calypso Standard Reference Model and years of proven practice from banks around the world, so you are not designing every process from a blank page.

Migration objects and good practice are defined up front. That shortens the time before the system pays for itself, lowers the total cost of ownership and makes it easier to take on new features later.

01.2

Upgrade &Version Rebase

Banks upgrade for different reasons. Sometimes a feature you need only exists in a newer release and cannot be backported. Sometimes the platform simply needs a technical refresh so new modules and core banking interfaces plug in cleanly.

Support matters too. Calypso supports the current release, the one before it, and any release issued in the last 24 months. Older versions fall out of support unless you pay for extended cover. We plan and run the upgrade so your desks keep trading while it happens.

v14 to v16.1v15 to v16.1v16.1 to v18
01.3

SmartHealth Check

Calypso is flexible and highly configurable. Over the years configurations grow more complex and data volumes pile up, and performance can slowly drift until the platform struggles to meet your service levels.

Our Smart Health Check is a proactive review, both functional and technical. We look at the key performance indicators, find the hot spots and give you a clear, prioritised plan to fix them.

01.4

AdvisoryServices

Sometimes you just need someone who has seen the problem before. Our advisory service gives your team direct, on demand access to experienced Calypso consultants, for a specific question, a design decision or a system that is not behaving.

02

ManagedIT Services

Run by SLA

Hand the day to day running of Calypso to a team that does nothing else. We take responsibility for all or part of your Calypso IT operations, exactly as agreed in a Service Level Agreement, so your own people can focus on the business.

02.1

CalypsoOperations

You keep ownership of your infrastructure. We look after the application on top of it. Depending on the SLA, that can mean round the clock monitoring, fixing issues as they come up, and regular reporting on how the platform is performing.

Pricing is a flat fee over a set period. The SLA spells out exactly which services we provide, to what level, and how success is measured, so there are no surprises on either side.

Level 2 supportMonitoringReporting
03

SoftwareDevelopment

Built to fit

Custom enterprise software, web and mobile applications, built around the way your institution already works. Our developers are led by experienced technical architects who understand enterprise integration and service oriented design, so new software fits into your landscape instead of fighting it.

03.1

BespokeSoftware

Every project starts from your requirements, not a template. We care a great deal about how a new feature sits inside your existing systems, and that care shapes every step of the build. When we hand it over, it should feel like it was always there.

We stay with you afterwards. The same developers who wrote the code help with upgrades, changes and troubleshooting, so things keep running smoothly. We can also work onsite, offsite or both, to add capacity to your own IT team at lower cost and with a faster time to market.

03.2

Targeted SolutionEngineering

Sometimes you do not need a whole new system. You need one specific problem solved properly. A gap your core platform does not cover, a manual process that slows the desk down, or a licence you are paying for but cannot roll out widely enough.

We study the problem, design a focused solution around it and build it to plug straight into the systems you already run. Our Trade Ticket Capture system started this way, built so a pan African bank could bring far more users onto Calypso, and it is now live in 22 countries. Retail FX began the same way, filling the gaps Calypso leaves for retail foreign exchange.

The people on your project

A

Frontend developers

Build the part people see and use. Layout, interaction and making sure it works in every browser, in close step with the backend team.

B

Backend developers

Build what powers the product. Core logic, system integration, performance, scalability and security.

C

Full stack developers

Work across the whole product. We bring them in when we own the full build from start to finish.

D

Desktop developers

Build and maintain applications for Windows, Mac and Linux, including the legacy systems many banks still rely on.

E

Database developers

Design and build the databases behind your applications and make sure they meet the needs of the people using them.

04

ProjectManagement

On time, on budget
04.1

Our job is to take the stress of running a project off your hands. We lead, plan, control and deliver, and we manage the stakeholders along the way, so everything gets done properly from start to finish within the agreed time and cost.

We take on projects of every size and level of complexity. You get a plan built for your situation, clear goals, and steady reporting, so you always know where things stand. Our reputation rests on delivering on time, on budget and to the quality you expect, and on making sure the business benefits you were promised actually arrive.

05

BusinessAnalysis

8 step process

Most failed technology projects do not fail because of bad code. They fail because what was built is not what the business needed. Our business analysts make sure that never happens to you, by getting the requirements right before anyone writes a line of code.

05.1

RequirementsDone Right

We have a team of experienced, talented business analysts who build a solution around your requirements, not around a product brochure. They sit with your dealers, operations staff, risk officers, finance teams and IT, and take the time to understand how work really flows through your institution today, where it breaks down and what you want it to look like tomorrow.

Everything they learn is gathered, written down clearly and turned into business specifications. Those specifications are then translated into application functionality that your developers or your software vendor can build, configure and test against. Nothing important is left to memory or assumption.

This matters because a large share of software defects start as a simple misunderstanding between the business user and the developer in the early stages of a project. Every one of those misunderstandings costs far more to fix after go live than before. By validating requirements early, we help you get fewer defects, higher quality, less rework and lower cost, and we reduce the risk of a major system outage.

Our analysts know banking and finance well, from treasury and capital markets to investment and asset management. That means less time explaining the basics of your business, and more time spent on the decisions that actually shape the system.

Our process, step by step

  1. 01

    Understand the business

    We start by learning how your institution makes money, how your desks and back office operate, and what is driving the project in the first place.

  2. 02

    Analyse the competition

    We look at how comparable institutions solve the same problem, so you can see what good looks like and where you can do better.

  3. 03

    Analyse the market

    We consider the market you operate in, including regulation, products and customer expectations, so the solution holds up in the real world.

  4. 04

    Define and scope the project

    We agree what is in, what is out and what success means, so everyone starts from the same page and scope does not quietly grow.

  5. 05

    Gather requirements

    Through workshops, interviews and observation we collect what each team needs, in their own words, without losing the detail.

  6. 06

    Analyse and document requirements

    We test the requirements for gaps and conflicts, prioritise them, and write them up as clear specifications that can be built and tested.

  7. 07

    Communicate requirements

    We walk business and technical teams through the specifications until both sides agree they describe the same thing.

  8. 08

    Identify the solution

    Finally we recommend the best way to meet the requirements, whether that is configuring what you have, buying a product or building something new.

06

Quality Assurance &Testing

Dedicated division

Applications are the heartbeat of a modern bank, and a defect in production is a real business risk. Many of those defects begin as a misunderstanding between the business and the developers. We close that gap early by validating requirements before code is written, which means fewer defects, less rework, lower cost and far less chance of an outage.

01

Test strategy and advisory

Test planning, application lifecycle consulting and business impact analysis, so testing effort goes where the risk is.

02

Test execution and quality management

Hands on testing by certified QA professionals, with full quality, defect and release management.

03

Test enabling services

Automation, performance and security tooling that keeps quality high on every release.

06.1

Every stage ofTesting

We automate functional and regression tests to cut the risk that a change breaks something that used to work, aiming for close to full coverage. Performance and load testing finds bottlenecks in the application, infrastructure or network, and proves the system can carry the users you planned for. Security scanning and monitoring catch vulnerabilities before anyone else does.

We test desktop, mobile, web and cloud applications, with specialist testing for SAP, Oracle, service oriented architecture and embedded systems.

07

OurProducts

3 Products

Software we designed and built ourselves, shaped by years of working inside the banks that use it.

07.1

FalconTreasury

An enterprise treasury management system that covers front, middle and back office across asset classes, all on one integrated platform. Falcon helps treasury teams simplify their processes, manage risk better and run more efficiently.

It is built entirely in Java on an open, microservices based architecture, so it scales, stays resilient and adapts quickly when business, regulation or markets change. A built in accounting sub ledger keeps financial reporting accurate and transparent, which supports good governance and regulatory compliance.

InterbankCorporateRetail
07.2

RetailFX

Built for a large commercial bank headquartered in Lagos with branches in about 15 countries. Retail FX manages every retail foreign exchange transaction the bank's customers make, from global trade and funds transfers to invisible remittances at the branch.

It works alongside Calypso and fills the gaps it leaves for retail flows, so customer FX is fast, controlled and safe.

07.3

Trade TicketCapture

A pan African bank had invested in a Calypso treasury licence and wanted to bring many more users onto it across the continent. We designed and built a trade ticket capture system that integrates with Calypso and lets them do exactly that.

It is live today in 22 countries and helps the bank get far more value from the licence it already owns.

08

TrackRecord

Selected engagements

Some of the work we have delivered for banks and investment firms in Nigeria, Ghana, Tanzania and France.

  1. 2026Ecobank International SAParisCalypso implementation for commodities
  2. 2026Afrinvest (West Africa)LagosFalcon Treasury
  3. 2026Ecobank eProcessAccraCalypso application level 2 support
  4. 2024Ecobank International SAParisCalypso upgrade from v16.1 to v18
  5. 2024Ecobank eProcessAccraCalypso application level 2 support
  6. Since 2023Polaris BankLagosCalypso application level 2 support, ongoing
  7. 2023Access BankLagosDesign and build of our Retail FX solution
  8. 2023Ecobank eProcessAccraCalypso 16.1 rollout to 20 more countries
  9. 2023NCBA BankTanzaniaCalypso data warehouse interface
  10. 2023CRDB BankTanzaniaCalypso data warehouse interface
  11. 2022Access BankLagosCalypso implementation across assets, front to back office and accounting
  12. 2022Polaris BankLagosCalypso implementation across assets, front to back office and accounting
  13. 2022Polaris BankLagosM-Switch implementation
  14. 2022FCMBLagosCalypso application level 2 support
  15. 2021First BankLagosCalypso treasury system implementation
  16. 2021Ecobank InternationalParisCalypso upgrade from v14 to v16.1 for 12 countries
  17. 2021Ecobank eProcessAccraCalypso upgrade from v15 to v16.1 for 12 countries
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