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Services

Engineering for the full life of an enterprise system.

From a new product to a twenty-year-old platform that cannot stop: we design, build, modernize, secure and extend the software your business runs on. Every engagement is led by senior engineers who write production code.

  1. 01Java, Spring, Jakarta EE & Quarkus EngineeringYour core platform runs on Java and Spring, and it needs to move faster without becoming fragile.New enterprise applications and long-term development of Java platforms on Spring, Jakarta EE or Quarkus, in Java or Kotlin, by engineers who know the JVM in depth.
  2. 02Legacy ModernizationYour system works, but it runs on unsupported versions and every change feels riskier than the last.Incremental modernization of mature Java systems: Java and Spring upgrades, Jakarta migration and technical-debt reduction, without stopping production.
  3. 03Architecture & Distributed SystemsYour services talk to each other and to banks, ERPs or machines, and failures in between are hard to reproduce and expensive.Architecture assessments and the redesign of distributed systems that must stay correct, available and fast under real load.
  4. 04Security EngineeringSecurity findings keep accumulating, and fixing them must not break the business.Secure design and remediation for Java applications: authentication and authorization, dependency and CVE fixes, secrets, cryptography and secure financial integrations.
  5. 05AI Engineering for Enterprise JavaYou want AI to create value in your business processes, and those processes already run on Java.AI capabilities built into your existing Java and Spring systems: retrieval, tool calling, agents and document analysis, engineered for security, evaluation and cost control.
  6. 06React & TypeScript EngineeringYour users spend their day in internal tools and portals that are slow, inconsistent or hard to change.Enterprise web applications in React and TypeScript, designed together with the Spring backends they depend on.
  7. 07Cloud & Delivery on Cloudflare and Fly.ioReleases are manual and stressful, and when production misbehaves it takes too long to see why.Build pipelines, deployment, observability and production support for Java systems, specialised in simple, modern clouds: Cloudflare and Fly.io. AWS, Azure and Google Cloud when required.

Ways to start

Clearly scoped engagements for the most common situations. Each can stand alone or become the first step of a longer collaboration.

  • Java Architecture & Health Assessment

    A fixed-scope review of an existing Java system that ends with a prioritized technical action plan.

    For
    CTOs, Heads of IT and engineering managers responsible for a business-critical Java application
    Typical engagement
    Typically 2–4 weeks, fixed scope
    Engagement model
    Fixed-scope technical assessment
    Details

    You depend on a Java platform but have no clear picture of its risks, or of where to start improving it.

    What we do

    • Interviews with developers and operations
    • Code and dependency analysis, including known vulnerabilities
    • Review of architecture, data access and integrations
    • Targeted profiling of critical paths
    • Review of build, deployment and basic security practices

    Deliverables

    • Written report with risks ranked by likelihood and impact
    • Prioritized roadmap for the next 3, 6 and 12 months
    • Options for each major area (upgrade, refactor, replace) with indicative effort
    • Presentation to management and to the technical team

    Expected benefits

    • An informed decision instead of a guess
    • A budget you can justify internally
    • Quick wins identified early

    What we need from you

    • Read access to the source code
    • Access to a test environment or to production metrics
    • One technical contact on your side
    Request an assessment

  • Spring Modernization Sprint

    A planned, test-protected upgrade of Java, Spring Boot and Hibernate, delivered module by module.

    For
    Engineering managers and Heads of IT with an outdated Spring application in production
    Typical engagement
    Typically a 3–5 day planning phase, then 2–6 week sprints per service or module
    Engagement model
    Fixed-scope planning, then milestones or time and materials
    Details

    Your application runs on Spring Boot 2 or Java 8 or 11, out of support, and the upgrade has been postponed for years.

    What we do

    • Inventory of dependencies and upgrade blockers
    • Step-by-step plan across Java, Spring Boot, Jakarta EE and Hibernate versions
    • Characterization tests as a safety net
    • Automated refactoring with OpenRewrite where it is reliable
    • Progressive release with a rollback plan for each step

    Deliverables

    • Upgraded codebase running in production
    • Additional automated tests
    • Runbook and change report
    • Recommendations for staying on supported versions

    Expected benefits

    • Back on supported versions, with security patches available
    • Lower risk for every future change
    • A foundation for further modernization

    What we need from you

    • A CI pipeline, or agreement to set one up
    • A staging environment
    • Time from your team for reviews and acceptance
    Plan your Spring upgrade

  • Critical Vulnerability Remediation

    Triage and resolution of prioritized vulnerabilities in Java applications, with evidence for your auditors.

    For
    CISOs, Heads of IT and engineering teams in banks, fintech and other regulated companies
    Typical engagement
    Typically 1–4 weeks, depending on the findings
    Engagement model
    Time and materials with an agreed cap, or fixed scope for a defined list of findings
    Details

    An audit, a penetration test or a scanner has reported critical vulnerabilities, often with a deadline attached.

    What we do

    • Triage based on real exploitability in your context
    • Prioritization together with your security team
    • Dependency upgrades, patches and configuration fixes
    • Hardening of Spring Security, OAuth 2.0 / OpenID Connect and secrets handling
    • Regression testing of every change

    Deliverables

    • Findings resolved or mitigated, each with a documented rationale
    • Technical evidence for auditors
    • Prevention measures such as dependency scanning in CI and a software bill of materials

    Expected benefits

    • Reduced risk exposure
    • Audit findings closed on time
    • No interruption of service

    What we need from you

    • The existing report or scanner output
    • Access to source code and environments

    This is engineering remediation, not a certified penetration test. We work alongside your auditors and testers and do not replace them.

    Discuss your findings

  • Distributed Systems Reliability Review

    Diagnosis of recurring incidents, lost or duplicated messages and unpredictable latency across services.

    For
    CTOs, architects and platform teams running Kafka, message queues or microservices
    Typical engagement
    Typically 2–3 weeks of analysis, with optional implementation
    Engagement model
    Fixed-scope review, then time and materials for fixes
    Details

    Incidents keep coming back: messages lost or processed twice, inconsistent data between systems, latency nobody can explain.

    What we do

    • Review of past incidents and their timelines
    • End-to-end tracing of critical business flows
    • Review of idempotency, retries, outbox and saga patterns
    • Analysis of transaction boundaries and consistency
    • Identification of observability gaps and targeted load tests

    Deliverables

    • Root-cause diagnosis
    • Prioritized remediation plan
    • Critical fixes implemented, when included in the scope

    Expected benefits

    • Fewer incidents
    • Data you can trust across systems
    • Less firefighting for operations

    What we need from you

    • Access to logs, metrics and incident reports
    • Read access to the source code
    • A contact in operations
    Request a reliability review

  • Enterprise AI Feasibility & Prototype

    One practical AI use case, selected with you and delivered as a working prototype integrated with your existing software.

    For
    CTOs, CIOs and business owners in finance, life sciences and industry
    Typical engagement
    Typically a 1–2 day workshop, then a 3–6 week prototype
    Engagement model
    Fixed-scope workshop, then a prototype delivered in milestones
    Details

    You want to use AI, but it is unclear where it creates value and how to introduce it safely into your systems.

    What we do

    • Use-case selection by business value, data availability and risk
    • Architecture choice: Spring AI, LangChain4j or Embabel, hosted or local model
    • Retrieval or tool calling on your existing domain services
    • Guardrails and validation of model output
    • Evaluation dataset and quality metrics
    • Cost-per-request estimate and data-privacy review

    Deliverables

    • Working prototype integrated with a real system or a representative environment
    • Evaluation report covering quality, cost, latency and risks
    • Plan for taking the use case to production

    Expected benefits

    • A decision based on evidence rather than demos
    • Reuse of your existing Java investment
    • Risks identified before you scale

    What we need from you

    • Access to relevant data, anonymized where necessary
    • A business sponsor for the use case

    The prototype may show that a use case is not worth pursuing. That is a valid and useful result: you learn it in weeks, not after a large investment.

    Explore an AI use case

  • Enterprise Java Performance Optimization

    Measurement-led diagnosis and targeted fixes for slow Java applications and rising infrastructure costs.

    For
    CTOs and Heads of IT responsible for performance-sensitive Java systems
    Typical engagement
    Typically 1–3 weeks
    Engagement model
    Fixed-scope diagnosis, then time and materials for fixes
    Details

    The application is slow, timeouts appear under load, and infrastructure costs keep rising.

    What we do

    • Measurement with APM tools, Java Flight Recorder and async-profiler
    • Query and ORM analysis: N+1 queries, fetching strategies, caching
    • Tuning of garbage collection, thread pools and connection pools
    • Load tests that reproduce real traffic
    • Targeted fixes where the evidence points

    Deliverables

    • Measured baseline
    • Fixes implemented and reviewed
    • Before-and-after comparison measured on your system

    Expected benefits

    • Lower latency and higher throughput, where the measurements allow it
    • Infrastructure sized to real needs
    • Knowledge of where the next bottlenecks will appear

    What we need from you

    • A production-like environment or access to production metrics
    • Access to source code and database statistics

    We do not promise improvement figures in advance. We report results measured on your system.

    Improve your application's performance

  • Critical Project Recovery

    An independent assessment of a project that is late or at risk, a realistic recovery plan, and in-house delivery of the critical parts.

    For
    CTOs, heads of IT and product owners with a project in difficulty
    Typical engagement
    Typically a two-week assessment, followed by a delivery phase agreed on the basis of the findings
    Engagement model
    Fixed-scope assessment, then a milestone-based project
    Details

    An important project is late, unstable or out of control, and the team no longer sees a clear way to finish it.

    What we do

    • Review of code, architecture, backlog, test coverage and delivery process
    • Interviews with the team and stakeholders
    • Identification of the critical path and the main technical risks
    • Recovery plan with options, trade-offs and an honest estimate
    • In-house development of the critical components, with your team kept informed

    Deliverables

    • Written assessment of the project's real status
    • Prioritised recovery plan with scope options
    • Working software for the critical parts, in your repositories
    • Handover documentation and a clear plan for what remains

    Expected benefits

    • A fact-based view of where the project really stands
    • Decisions on scope and timing taken on evidence, not hope
    • The hardest parts delivered by senior engineers who own the result

    What we need from you

    • Access to repositories, issue tracker and documentation
    • Time with the people who know the project
    • A decision maker available for scope and priority choices

    We do not add people to your team. We assess the project independently, agree the recovery plan with you and deliver the critical parts ourselves, remotely and from our office, coming on-site for workshops, decisions and handover.

    Talk about a project at risk

  • New Product Engineering

    Design and delivery of a new product, feature or integration, from architecture to production.

    For
    Founders, product owners and CTOs
    Typical engagement
    Typically a 1–2 week discovery, then delivery in milestones
    Engagement model
    Fixed-scope discovery, then milestone-based delivery
    Details

    You need to build a new product, a major feature or a complex integration, and it has to be right the first time.

    What we do

    • Discovery of requirements, constraints and risks
    • Architecture and technical design
    • Backend development with Spring Boot
    • Frontend development with React and TypeScript
    • CI/CD, observability and security built in from the start

    Deliverables

    • Software running in production
    • Architecture and operations documentation
    • Handover to your team, or continued development

    Expected benefits

    • One accountable team from design to production
    • Fewer surprises at go-live
    • A codebase your team can own

    What we need from you

    • A product owner available for decisions
    • Access to the systems to be integrated
    Discuss your product