Spring Boot Development in the UK

About Spring Boot Development

Spring Boot is how a lot of enterprise teams build Java backends: REST APIs, microservices, and integration-heavy services on a mature, well-supported framework. This is a newer service line for us, so we will be straight with you. We take it on with senior backend engineers and the same discipline we run on every build: a written scope, a flat quote, real tests, and CI, not a learning exercise billed to you.

What the engagement includes

• Spring Boot 3.x on a current long-term-support Java, 17 or 21, built with Maven or Gradle, so you are not starting on a version that is already near end-of-life.
• Tests that actually run: JUnit 5 for unit tests and Testcontainers for integration tests against a real database in CI, not mocks that pass while production breaks.
• OpenAPI and Swagger documentation generated from the code, so the API contract stays in sync with what the service actually does.
• Versioned database migrations with Flyway or Liquibase. Schema changes are reviewed and repeatable, never hand-run against production.
• Containerized with Docker and wired into CI/CD, with Spring Boot Actuator health checks and Micrometer metrics so the service is observable once it is live.
• You own the repo, the pipeline, and the deployment. Nothing is locked to us, and a written scope with a flat quote comes before any code.

Renewal pricing, the pensions dashboards deadline and November's CHAPS release in a UK Spring Boot system

UK home and motor insurers price renewals under a rule that turns the quote engine into evidence. Since 1 January 2022 ICOBS 6B has required the renewal price offered to a consumer to be no higher than the equivalent new business price, the ENBP, and the FCA's policy statement PS21/5 fixes when that comparison is made: at the point the renewal notice is prepared, not on the day the policy renews. In a Spring Boot policy administration system that settles the shape of the renewal run. The Spring Batch job that builds the notices calls the same rating service a new customer's quote goes through, feeding it the renewing customer's current risk, mid-term adjustments included whichever way they move the price, and the channel the customer first bought through. Where that channel was never recorded, the rules say to use the one most new business customers come through, so the original channel becomes a field written at the point of sale rather than guessed at later. Incentives offered to new customers count too, which makes the promotion tables an input to the ENBP rather than a layer applied at checkout. The figure worth keeping is the ENBP itself, stored beside the notice with the version of the rating tables that produced it, so a later challenge is answered from the record, not by rerunning a model that has since changed. ICOBS 6B.2.51R asks for written records of how the firm satisfies itself that it does not systematically charge customers of longer tenure more, and the same stored figures feed that analysis. Auto-renewal has its own section, ICOBS 6A.6: the ways to cancel it must include at least every way a customer can buy a new policy, available at any time during the policy and free of charge, so if the quote journey is an online form the cancellation route is one too. How your products sit under these rules is for your compliance team.

Occupational pension schemes and pension providers in scope must be connected to the pensions dashboards ecosystem by 31 October 2026, the single deadline the 2023 amendments wrote into the Pensions Dashboards Regulations 2022 and which the FCA mirrored in its own rules for providers. Most connect through an integrated service provider or administrator, and for whoever builds that layer in Spring Boot the regulations read like a service level agreement. A find request arrives from the Money and Pensions Service and the trustees must complete matching immediately, against criteria they have decided and recorded, with that record kept for at least six years. A possible match gets a limited set of administrative data and a message asking the person to make contact. If they have not done so within 30 days, the find request information is deleted and the pension identifier de-registered as soon as possible, which is a scheduled job with an audit log, not a cleanup somebody remembers to run. Value data runs on two clocks. A figure taken from a statement issued in the last 13 months, or a calculation done in the last 12, goes back immediately; otherwise a member with only money purchase benefits must have it within three working days, and everyone else, defined benefit and hybrid members included, within ten. So the endpoint answering the request stays synchronous, while a calculation the administration platform cannot produce on the spot is queued, tracked against its own deadline and returned when ready. A late element must carry a reason, and the regulations add that the reason does not excuse the delay. The Pensions Regulator can issue penalty notices of up to £5,000 for an individual and £50,000 for anyone else, and a third party that ignores a compliance notice can receive one too, so a supplier running the connection has reason to read them as closely as the trustees. Which duties fall on your scheme is for its trustees and their advisers.

Firms that send or receive CHAPS payments have a schema release to absorb every November, because the Bank of England has committed to annual upgrades of the ISO 20022 messages used in CHAPS and RTGS. Its change plan for the November 2026 release, updated on 19 December 2025, follows the international CBPR+ and HVPS+ guidelines by removing the unstructured-only postal address from pacs.008, pacs.009 and related messages and making town name and country mandatory in every postal address block, with the postcode recommended wherever one exists. The same release lets participants cancel unsettled CHAPS payments, forward-dated and timed ones in particular, with a camt.056 request that RTGS confirms with a camt.029. The Bank expects the November 2027 release to centre on a base message upgrade. In a Spring Boot payments service the schema change is the cheap part: the classes generated from the XSDs in the Maven build are regenerated and the validation tests rerun against the new samples. The expensive part is the data behind the message. UK customer records in older banking and treasury systems often hold an address as four or five free text lines, and the new rule needs town and country lifted out of them as separate fields, for debtors and creditors and, where the textual rules expect it, for the ultimate parties as well. So the work begins with a pass over stored addresses to see how many parse cleanly, a route to correct the ones that do not before the release date, and a check at the API boundary so new records cannot arrive in the old shape. Cancellation adds a state to the payment lifecycle between submitted and settled, which the reconciliation jobs and the operations dashboard both need to understand. Which items apply to your type of participation is for your payments operations team to confirm against the Bank's final package.

How we work with UK clients

UK engagements tend to start with procurement questions rather than technical ones. Who holds the data, which law governs the contract, whether you can produce a record of processing if the ICO asks. We answer those in the proposal instead of leaving them to a legal review three weeks in, because that review is where UK projects usually stall.

Invoicing is the other thing worth settling early. We are outside the UK, so services we supply generally fall under the reverse charge and your finance team accounts for the VAT rather than paying it to us. Our invoices say so explicitly. We quote in pounds, the figure does not move with the exchange rate mid-project, and payment by bank transfer avoids the card fees that make a five-figure invoice unnecessarily expensive.

Questions UK clients ask

Spring Boot Development: common questions

Other markets we work in