26.10.2026 aktualisiert

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Senior Full Stack Developer | AI Platform Engineer | Java, Spring Boot, React, AWS

Lugano, Schweiz
Weltweit
Lugano, Schweiz
Weltweit

Über mich

Principal-level full-stack engineer and architect (Java/Spring Boot, React/TypeScript, Kafka, AWS/Azure, AI/RAG). 30+ years in software, 15+ in Swiss and UK banking/FinTech, incl. SIX Group, Lloyds, Swisscom, HMRC and NHS Digital. Based in Lugano, Ticino.

Skills

JavaAmazon Web ServicesTest AutomationMicrosoft AzureBankingDelphiC#Continuous IntegrationSpring FrameworkPythonPostgreSQLNode.jsOAuthOpenShiftOracle DatabasesSoftware ArchitectureRedisAngular 2+Next.jsSeleniumTypeScriptSpring CloudReact.jsLarge Language ModelsSpring BootAWS LambdaBackendGitLabKubernetesPlaywrightFull Stack EntwicklungApache KafkaGraphQLFront EndFintechTerraformDockerJenkinsGolangMicroservices
Senior Full Stack Developer and Architect with 30+ years of production engineering and 15+ years in regulated banking and FinTech (UK and Swiss banks, SIX Group, Lloyds Banking Group, Swisscom). UK central government delivery for HMRC, NHS Digital and Companies House.

Backend and integration: Java 8-21, Spring Boot 3, Spring Cloud, Spring Security, Java EE, Maven, Go (Golang), Node.js, NestJS, Python/FastAPI, C#/.NET, Delphi, REST, GraphQL, gRPC, SOAP, OpenAPI, JOOQ, microservices.

Frontend: React, TypeScript, Next.js, Angular, Module Federation / micro-frontends, Material UI, Storybook, HTML, CSS, SASS, WCAG accessibility.

Event and data: Kafka, Kafka Streams, Redis Streams, IBM MQ, RabbitMQ, AWS SNS/SQS/EventBridge, Azure Service Bus, PostgreSQL, Oracle, SQL Server, MongoDB, DynamoDB, MarkLogic.

Cloud and DevOps: AWS (Lambda, API Gateway, S3), Azure (AKS), Kubernetes, OpenShift, Docker, Helm, Terraform, Ansible, GitLab CI, Jenkins, Azure DevOps, GitHub Actions.

Security and quality: OAuth2, OIDC, Entra ID, Okta, Auth0, OPA, RBAC, TDD, JUnit, Mockito, Testcontainers, Pact, Cucumber, Selenium, Playwright, Pytest, SonarQube, Snyk, Trivy. Test automation for banking web apps (Avaloq/Angular).

AI engineering: agentic coding (ReAct, MCP, AST-aware RAG), private LLM inference (Ollama, LiteLLM, vLLM, Ray), pgvector RAG, LLM evaluation, OpenTelemetry, Prometheus, Grafana, Loki.

Trading and digital assets: FIX Protocol broker connectivity, low-latency market data, EVM integration, smart-contract security testing.

Roles: Principal Engineer, Software Architect, Tech Lead (teams up to 20 engineers), legacy modernisation (JDK 6 to Java 21), ADRs, code review, CI/CD and DevSecOps governance. Languages: English, German, Italian, Portuguese, Spanish. 100% remote or on-site in Switzerland.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2018

Sprachen

DeutschGrundkenntnisseEnglischverhandlungssicherItalienischverhandlungssicherPortugiesischMutterspracheSpanischgut

Projekthistorie

Principal Engineer and Architect

UK and Swiss Banks (incl. SIX Group)

Banken und Finanzdienstleistungen

  • Created AR Web for banking test automation, evolving JavaFX workflows into Java 21, Spring Boot and React services (now evolving into MultiTest.ai).
  • Designed end-to-end automation, API and service-testing workflows, CI/CD controls and platform integrations.
  • SIX Group: modified Spring Boot core routing to intercept test-exercised paths, adding deep execution tracking, logs and a reporting portal for an automation framework with 9,000+ test cases.
  • Technology: Java 21, Spring Boot, JavaFX, React, Node.js, PostgreSQL, SQLite, JOOQ, Selenium, GitLab CI, Jenkins, Postman, SoapUI, Groovy, Python

Senior Full Stack Engineer and Tech Lead

Margin Edge (USA)
  • AWS-native platform rewrite, replacing legacy Java and React patterns with Java 21, Spring Boot 3 and modern frontend integration.
  • Built Node.js GraphQL BFF capabilities, Kafka/event integrations and automated quality/security controls.
  • Worked with UK and US teams on API integration, delivery standards, DevSecOps gates and production releases (100% remote).
  • Technology: Java 21, Spring Boot 3, Node.js, React, GraphQL, AWS Lambda, Kafka, SNS, EventBridge, Pact, SonarQube, Snyk, Trivy

Senior Full Stack Engineer

Swisscom
  • Built and maintained billing and analytics microservices, including Jakarta JAXB remapping, Spring upgrade work, defect resolution and new service delivery.
  • Developed React and Material UI portal improvements, GraphQL and JOOQ data access, plus Selenium-based regression automation.
  • Implemented secure authentication and authorisation patterns using Okta and OPA.
  • Technology: Java 21, Spring Boot 3, Node.js, React, Material UI, GraphQL, JOOQ, PostgreSQL, Kafka, Azure AKS, Azure Service Bus, Okta, OPA, GitLab CI, Jenkins, Cucumber

Senior Full Stack Engineer (UK Government, SC cleared)

Companies House (UK Government)
  • Delivered Java and cloud integration work for UK regulatory filing capabilities, including serverless and event-driven services.
  • Used Go (Golang) alongside Java 17; supported AWS Lambda, Kafka and infrastructure automation (100% remote).
  • Technology: Java 17, Go (Golang), AWS Lambda, Kafka, Ansible, Spring, PostgreSQL

Senior Java Developer and Technical Lead

Lloyds Banking Group
  • Led technical architecture and delivery across a banking programme of up to 20 engineers, including legacy Java modernisation and engineering governance, with zero P1 incidents.
  • Improved performance and maintainability of legacy applications; supported migrations from JDK 6 through Java 17 and modern platform patterns.
  • Applied code review, ADRs, TDD, CI/CD and stakeholder communication practices across the programme.
  • Technology: Java 6-17, Spring, OpenShift, Kafka, Node.js, React, Oracle, PostgreSQL, GitLab CI, Jenkins, UrbanCode, Selenium, Cucumber, Jira

Senior Full Stack Engineer (UK Government)

NHS Digital
  • Designed and built React/TypeScript micro-frontends for COVID test-kit distribution workflows, with independently deployable components and Module Federation.
  • Worked across Java, Node.js, OpenShift, APIs, accessibility and CI/CD, delivering to WCAG 2.1 AA.
  • Technology: React, TypeScript, Module Federation, Java, Node.js, AWS S3, OpenShift, Docker, Kubernetes, GraphQL, Kafka, GitLab CI, Jenkins, Cucumber

Software Java Engineer (UK Government)

Mastek for HMRC
  • Maintained and delivered Spring Boot microservices integrating services in the HMRC landscape (100% remote).
  • Worked on UK tax, payments and customs workflows across Java, Node.js, frontend components, messaging and automated testing.
  • Technology: Java 8-11, Spring Boot, Spring Cloud, Kafka, IBM MQ, AWS, Docker, Kubernetes, Node.js, React, Angular, GraphQL, PostgreSQL, Selenium, Jenkins

Software Architect Engineer

Corner Group Bank
  • Designed Java microservices to extract, normalise and persist SOAP, JSON, HTML and MarkLogic data for monitoring and automated test evidence (100% remote).
  • Built React/JavaScript interfaces for test-data visualisation and flow control; delivered automation frameworks with Selenium, Robot Framework, Appium and API tooling.
  • Applied contract-first and domain-first approaches to integration and testing components.
  • Technology: Java 8-15, Spring Boot, Spring Cloud, Node.js, React, Redux, Angular, Kafka, RabbitMQ, Docker, Kubernetes, GraphQL, Oracle, SQL Server, PostgreSQL, Selenium, Robot Framework, Jenkins

Senior Full Stack Engineer

IHS Markit Janes (UK)
  • Maintained Java 8 ESB services and developed Java, C#, Node.js and frontend functionality for aerospace and defence intelligence products.
  • Contributed to GIS and mapping features, SOLID refactoring, code reviews, test automation and data analysis across SQL Server and MarkLogic.
  • Technology: Java 8, C#, .NET, JavaScript, Knockout, React, Node.js, Azure, Elasticsearch, Kafka, RabbitMQ, SQL Server, MarkLogic, Selenium, Jenkins, TeamCity

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