EXCOIN / SERVICES

Services shaped around the problem

From a new product to integration, modernization and operations. We first establish what must work, for whom and under which constraints. The technology and delivery model follow from those answers.

01 / ENGINEERINGCS · EN · ES
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When a standard product is not enough

Custom development makes sense for processes that an available product cannot cover well, or for a digital service that is itself central to the business. Before writing code, separate the differentiating part from ordinary capabilities that can be purchased or integrated. That keeps the proprietary codebase smaller and reduces the cost of maintaining it over time.

Fintech and trading environments bring specific data flows, roles, traceability and operational resilience into the design. Our service descriptions discuss technical questions and suitable scenarios; they do not claim a legal or regulatory certification. Particular integrations and obligations need to be verified against the actual system and contractual context.

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When several systems must agree

Integration is not simply connecting two endpoints. Someone must own the data, schema changes, event order and the response to outages. A payment flow must distinguish a rejection from a timeout and from a result that is not yet known. A data integration needs mapping rules, versioned contracts and visibility into data quality.

A robust design describes repeated delivery, idempotency, retry, exceptions and manual intervention. The same discipline matters in a brokerage back office and a SaaS platform. If the main problem is the relationship between systems, begin with a map of data and responsibilities rather than selecting another tool.

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When AI enters everyday operations

AI automation is useful when the task repeats, inputs are suitable and outputs can be checked. Retrieval-augmented generation may help with knowledge scattered across documents, but its value depends on source quality, access control, evaluation and citations. A private model may offer greater control over data, while bringing its own infrastructure and maintenance costs.

Not every process needs a generative model. Better search, a clearer data model or rule-based automation may be the stronger answer. A pilot should compare alternatives against the cost of errors, human time and operating constraints.

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When the application has to keep working

Cloud and DevOps work includes build and release processes, configuration, access, monitoring and recovery. Application operations define incident response, dependency updates, backups and communication. These decisions belong alongside application design because choices in code affect availability and cost for the entire service.

Secure development is a continuous discipline. It starts with a threat model and clear responsibilities, continues through change controls and ends with the ability to respond when something goes wrong. When an external specialist performs a security review, the scope and responsibility should be stated plainly.

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How to choose a first step

If the product is clear but the architecture is not, begin with discovery for custom development. If an existing system is the constraint, first map dependencies and modernization options. If data does not move reliably between systems, integration is the primary subject. If a service is unstable, find the operational cause before changing frameworks by default.

An engagement might be a defined project, an ongoing development team, a consultation or managed support. The right model depends on uncertainty, the client's available capacity and who owns operations. An initial conversation can be short when the next decision is clear.

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Questions that identify the right service

Before choosing a supplier, record who currently owns the process, which data enters and leaves it, what systems need to connect and what happens when something fails. Distinguish a new product from a change to an existing system, an integration problem or an operations issue. This short map makes the next conversation more productive than a list of preferred technologies.

02 / DIRECTORY

All services

01 / SERVICESFintech software built around state, data and operationsA financial product needs more than a fast interface. Design must account for the source of truth, an unknown transaction outcome, permissions, an audit trail and recovery after failure.02 / SERVICESA trading platform as a controlled flow of data and ordersA trading application is defined by more than a chart on a screen. Data provenance, order state, failure behavior and the ability to reconstruct what a user saw all matter.03 / SERVICESBroker CRM and back office shaped by real workflowsA broker CRM is more than a client record. It joins onboarding, service cases, staff roles, data changes and state in connected systems.04 / SERVICESPayment integrations designed for states and exceptionsA payment is not complete when an application sends a request. A dependable integration distinguishes confirmation, rejection, unknown outcomes, repeated events and later settlement.05 / SERVICESData and API integrations that remain understandable after failureConnecting two systems is not complete when the first request succeeds. Data meaning, contract ownership, retry behavior and a route to repair disagreements must be clear.06 / SERVICESBlockchain where it changes trust between partiesA shared record is useful when independent participants need to verify the same state without handing sole control to one party. First establish what is recorded, who is responsible and how errors are repaired.07 / SERVICESSmart contracts with verifiable rulesCode that can execute a valuable operation without further approval calls for precise rules and realistic testing. Design begins with ownership, state and recovery.08 / SERVICESAI automation with measurable outcomes and human controlAutomation helps when it removes specific repeated work and its errors can be caught safely. Start with the process, the data and a measure of success.09 / SERVICESPrivate LLMs based on real data and operating boundariesSelf operated inference can give more control over data and operation. It also brings responsibility for performance, security, updates and the full cost of a service.10 / SERVICESRAG for enterprise knowledge with verifiable answersRetrieval augmented generation joins search across internal sources with a language model. It is useful when people can inspect the evidence, permissions are respected and the system can say when it does not know.11 / SERVICESCloud and DevOps for safe changes and predictable operationsCloud works when the application, deployment and operations form a system people can explain. Automation helps once the team knows what changes, who owns it and how the service will recover.12 / SERVICESManaged application operations with clear ownershipA longer phase of an application's life begins after launch. Management works when everyone knows who observes the service, responds to incidents, changes it and restores data.13 / SERVICESWeb and mobile applications built around real tasksA good application works in the real situation, on the device a person actually uses. The choice between web and mobile should follow the task, required device capabilities and long-term operating cost.14 / SERVICESSecurity engineering as a verifiable product practiceApplication security does not come from one test before launch. It requires decisions about data, permissions, dependencies and response to mistakes throughout the product lifecycle.15 / SERVICESCustom software for the process you actually haveA bespoke application is worthwhile when it solves an important problem better than an available product and its long-term value outweighs the cost of ownership. We help make that decision before the first sprint.
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