Spring Boot Developers in Canada

About Spring Boot Developers

Senior backend engineering for Java and Spring Boot: versioned REST APIs, microservices, and system integrations built on Spring Boot 3 and Java 21, with real tests and CI in every build. Hire one dedicated developer, augment your existing squad, or hand us a scoped project, all on a written scope, a flat quote, and code you own from the first commit.

What the engagement includes

• API design that survives contact with real clients: versioned REST, clear error contracts, pagination, idempotency, and OpenAPI docs, the same whether the runtime is Node, PHP, or the JVM.
• Relational and NoSQL data modelling in PostgreSQL, MySQL, MongoDB, and Redis, which maps directly onto Spring Data JPA, Hibernate, and Spring Data MongoDB.
• Automated testing as a default rather than an afterthought: integration tests wired into CI before code merges, which is exactly how JUnit 5 and Testcontainers are meant to be used.
• CI/CD and containers we run every day: GitHub Actions, Docker, and AWS deployments (ECS, EKS, Elastic Beanstalk) that a Spring Boot service drops into cleanly.
• Migrations off legacy systems, which is often the exact reason a team wants a fresh Spring Boot backend in the first place.
• Framework-agnostic security: OAuth2, JWT, role-based access, and secrets management that are non-negotiable from day one on any stack.

Alberta information managers, FINTRAC reporting and ISO 20022 payment files when hiring Spring Boot developers

In Alberta, a team that builds or supports a health system for a custodian is usually an information manager, a role the Health Information Act regulates directly. The Act defines an information manager as a person or body that processes, stores, retrieves or disposes of health information, transforms identifying information into non-identifying information, or provides information management or information technology services in a manner that requires the use of health information. A custodian must sign a written agreement with an information manager in accordance with the regulations, may then provide health information without the individuals' consent for the purposes the agreement authorises, and stays responsible for compliance. The Health Information Regulation lists what the agreement must cover, including whether the information manager may collect, use or disclose health information and for what, how access and correction requests are answered or referred to the custodian, how the information is protected, returned or destroyed,. Where information is to be stored or used outside Alberta, the regulation separately requires an agreement, before that happens, that keeps the custodian in control, addresses the risks, requires adequate safeguards, lets the custodian monitor compliance and provides remedies. Amendments made in 2025 also let an information manager submit an information security policy for a system to the Information and Privacy Commissioner for comment, and require one that has not done so to describe the system's functions and safeguards in plain language, in enough detail for the custodian's privacy impact assessment. For a Spring Boot system that description is easiest to write from the code: method-level security on every service that reads health records, an audit event for each access naming the purpose from the agreement, data kept where the agreement says it is kept with our team reaching it only through those audited paths, and a destruction job the agreement can point to. Whether we are an information manager under your arrangement is for your privacy officer or counsel.

A Spring Boot service that reports to FINTRAC now integrates with an API rather than uploading batch files, and the API's limits shape the design. FINTRAC requires businesses with an internet connection to submit suspicious transaction, large cash transaction, large virtual currency transaction, electronic funds transfer and casino disbursement reports electronically, and its API report submission is aimed at reporting entities with higher volumes. The transition periods for moving off the systems being decommissioned ended between November 2023 and August 2024, so the API is the system-to-system route that remains. Access starts with an application and secret created through FINTRAC's API portal. There are two groups of endpoints, single and bulk, each able to create, change and delete a report. A single report can carry up to 500 transactions within 25 MB, while a bulk file is limited to 300 MB with up to 5,000 reports and up to 5,000 transactions per report. When a limit is reached the business opens a new report and links the two by adding a suffix to its own report reference number, -01, -02 and so on, and one transaction can hold up to 50 starting and 50 completing actions only if they share a single date and time. The JSON schemas and the validation rules for each report type carry their own update dates, and FINTRAC's reporting systems go down for weekly maintenance from 8 pm Saturday to noon Sunday, Eastern time. In Spring terms that is a Spring Batch job that chunks by FINTRAC's limits rather than by a convenient page size, a reference numbering scheme that survives a retry, the application secret held in a vault and rotated, validation against the published JSON schema before anything is sent, a scheduler that knows about the weekend window, and a store of every validation message returned so a rejected report can be corrected and resubmitted. What you must report, and when, is for your compliance officer.

Payments are the other place a Spring Boot back end meets Canadian infrastructure, and it is mostly files. A business paying suppliers or staff, or collecting by pre-authorised debit, exchanges payment files with its bank, and Canada's batch payment system is moving to ISO 20022. Payments Canada publishes usage guidelines for the automated funds transfer messages exchanged between financial institutions, credit transfers, debit transfers, returns, reversals and identification modification advice, with registration required at least 180 days before a participant's implementation date and the schema files supplied on request rather than posted. The corporate-to-bank messages, pain.001 credit transfer initiation, pain.008 direct debit initiation, pain.002 status reports and the camt.052, camt.053 and camt.054 account reports and notifications, are published as drafts for information only, with an explicit warning that they should not be relied on for system development. That warning is the practical point. The format your system must produce is the one in your bank's implementation guide, and banks test it during client onboarding, which Payments Canada now supports with a payment file validation service that checks XML and non-XML files against payment standards and the bank's business rules and returns simulated responses. Money coming in has a Canadian feature of its own. Customers who pay a bill through online banking reach you through a corporate creditor identification number, one for each bill category, obtained through your bank and held by Payments Canada in a national database updated weekly. So the Spring Batch jobs that produce and consume these files are written against each bank's guide, with the message version and the bank treated as configuration, validated against that bank's schema before transmission, proven through the bank's onboarding tests, and reconciled against the camt statements and bill payment remittances rather than against what the system believes it sent. Which formats your banks accept is for their cash management teams to confirm.

How we work with Canadian clients

Two things shape Canadian projects more than anything technical. The first is language: if you serve Quebec, French is a legal requirement rather than a nice addition, and the rules tightened considerably under Bill 96. The French version has to be available on equal terms with the English one, which is a design constraint from the first wireframe rather than a translation task at the end.

The second is anti-spam law. CASL is stricter than most teams expect, and the penalties are real. Consent has to be express or clearly implied, records of it have to be kept, and every commercial message needs a working unsubscribe and accurate sender identification. We build those into the product rather than leaving them to whoever configures the mailing tool later, because that is where the exposure usually sits.

Questions Canadian clients ask

Spring Boot Developers: common questions

Other markets we work in