Java Software Engineer with Kafka

Luxoft; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

Luxoft is seeking a Senior Backend Engineer to design, build and operate event-driven microservices for structured-products trading. You will work across APAC, AMER and EMEA, integrating external trading platforms with internal services including FIX connectivity.

Your role emphasizes robust testing, secure operation, and production-ready observability with Java, Spring Boot and Kafka technologies. Collaboration with product, support and platform teams is essential.

Qualifications

• 6 years deep hands-on experience with modern Java, Spring Boot, dependency injection, configuration, Spring WebFlux, Project Reactor and Spring Security.
• strong knowledge of Apache Kafka, Kafka Streams, Reactor Kafka, Spring Kafka, Confluent Schema Registry, Apache Avro and schema evolution.
• a strong testing mindset using JUnit 5, Mockito, AssertJ, reactor-test, JSON comparison and Kafka test tooling, including deterministic and parameterized tests.
• experience with Maven, GitLab CI/CD and Kubernetes-based delivery; familiarity with Node and npm is beneficial.
• familiarity with Micrometer, Prometheus, Actuator, OpenTelemetry, Log4j2, Splunk integration and HashiCorp Vault (good to have).
• an understanding of structured products, RFQ and quote workflows, order routing, trade lifecycle events, pricing subscriptions and reporting is beneficial.
• experience with AI solutions, MCP servers and AI agents is a plus.
• Strong technical communication skills, a collaborative approach to code reviews, and the ability to thrive within regulated environment.

Responsibilities

• design, build and operate event-driven microservices that power structured-products negotiations and trading.
• the solution enables the routing, transformation, enrichment and exchange of communications between internal and external partners.
• design, build and test stateless Java services and shared libraries that consume, transform and produce Kafka messages.
• ensure reliable and secure operation through robust stream error handling, schema compatibility, deterministic behavior and production-ready observability.
• deliver services across multiple environments, contributing to GitLab CI/CD, Kubernetes deployments and operational support.
• write high-quality unit and integration tests, review code and promote consistent engineering standards across a broad application estate.
• integrate external trading platforms and venues with internal instrument, reference-data and product services, including FIX connectivity.

Skills

Java

Spring Boot

Spring WebFlux

Project Reactor

Spring Security

Kafka

Kafka Streams

Schema Registry / Avro

JUnit 5 / Mockito

CI/CD

Kubernetes

Maven

Node / npm

Observability (Micrometer/Prometheus/O

OpenTelemetry

HashiCorp Vault

Tools

Maven

GitLab CI/CD

Kubernetes

Node

npm

Micrometer

Prometheus

OpenTelemetry

Log4j2

Splunk integration

HashiCorp Vault

Job description

You will join the Client Connectivity pod within Cross-Asset Structured Products crew, working with

engineers across a portfolio of trading-connectivity services and platforms. POD is spread across APAC,

AMER and EMEA locations. You will collaborate closely with product, support and platform teams to deliver secure, resilient solutions for distributors, venues and internal users.

Responsibilities:

As a Senior Backend Engineer, you will design, build and operate event-driven microservices that power structured-products negotiations and trading. The solution enables the routing, transformation, enrichment and exchange of communications between internal and external partners.

We are looking for someone who can:

• design, build and test stateless Java services and shared libraries that consume, transform and produce Kafka messages
• ensure reliable and secure operation through robust stream error handling, schema compatibility, deterministic behavior and production-ready observability
• deliver services across multiple environments, contributing to GitLab CI/CD, Kubernetes deployments and operational support
• write high-quality unit and integration tests, review code and promote consistent engineering standards across a broad application estate
• integrate external trading platforms and venues with internal instrument, reference-data and product services, including FIX connectivity

Mandatory Skills Description:

• 6 years deep hands-on experience with modern Java, Spring Boot, dependency injection, configuration, Spring WebFlux, Project Reactor and Spring Security
• strong knowledge of Apache Kafka, Kafka Streams, Reactor Kafka, Spring Kafka, Confluent Schema Registry, Apache Avro and schema evolution
• a strong testing mindset using JUnit 5, Mockito, AssertJ, reactor-test, JSON comparison and Kafka test tooling, including deterministic and parameterized tests
• experience with Maven, GitLab CI/CD and Kubernetes-based delivery; familiarity with Node and npm is beneficial
• familiarity with Micrometer, Prometheus, Actuator, OpenTelemetry, Log4j2, Splunk integration and HashiCorp Vault (good to have)
• an understanding of structured products, RFQ and quote workflows, order routing, trade lifecycle events, pricing subscriptions and reporting is beneficial
• experience with AI solutions, MCP servers and AI agents is a plus
• Strong technical communication skills, a collaborative approach to code reviews, and the ability to thrive within regulated environment

Nice-to-Have Skills Description:

• practical experience with Spring Data JPA, JDBC, Oracle and SQLite