Senior Java Developer (Banking)

Helius Technologies; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Helius Technologies in Singapore is seeking a Senior Java Developer for a 1-year renewable contract. You will design, develop, and deliver scalable Java-based solutions within complex, enterprise environments across Asia and the Middle East.

The role requires strong Core Java, Spring Boot, JMS, REST/SOAP, and CI/CD practices, with a focus on performance, reliability, and secure coding. You will collaborate in an agile team, tackle legacy defects, and contribute to wealth-management related

Qualifications

• 8 to 12 years of relevant experience.
• Core Java 8+ and JUnit.
• Spring Boot.
• Strong CS knowledge (algorithms, data structures, object-oriented design).
• TDD. Able to write acceptance test.
• Maven.
• Basic Linux shell scripting commands.
• Java Messaging Concepts (JMS, MQ).
• Web Services REST, SOAP.
• Spring core concepts.
• Experience in SQL queries optimisation
• Familiarity with IntelliJ, Git, SonarQube/SonarLint
• Able to write/understand complex SQL queries.
• Kafka.
• React JS or Angular

Responsibilities

• Communicate highly technical issues to non-technical audience.
• Earn good reputation of being technically strong in the organization by help solving problems others struggle.
• Development and delivery with Java, EJB, Spring Boot, MySQL and IBM MQ.
• Understand business / system requirements and translate them into technical solutions that are scalable, stable and fit for purpose.
• Tackle very complex legacy defects that mediocre developers cannot analyse/solve.
• Ensure adherence to the bank standards (including code, security and performance).
• The role provides exposures to Wealth Management systems (CRM, Client on-boarding, KYC, AML, Name Check, Documentum, Captiva, GMC, and Liferay Portal).
• Passionate about technologies and building robust and scalable Java Systems.
• Analysis, design coding, and implementation of complex and custom-built applications.
• Work collaboratively with team to achieve goals. Experience working in Agile methodologies, such as Scrum, and/or Extreme programming.
• Experience in following best practices like Test-Driven Development (TDD) and continuous Integration (CI)
• Investigate and resolve production issues to help maintain a stable production environment; remain cool and effective in crisis.

Skills

Core Java 8+

JUnit

TDD

Spring Boot

Data structures & algorithms

OOP design

Agile (Scrum)

Tools

Maven

Linux shell scripting

JMS

REST

SOAP

Spring Core

IntelliJ

Git

SonarQube/SonarLint

Kafka

React JS

Angular

IBM MQ

MySQL

EJB

Job description

At Helius Technologies, we help organisations deliver technology outcomes that work in the real world. Our teams support complex technology initiatives across Asia and the Middle East particularly in regulated and enterprise environments where reliability, governance, and execution matter.

Our focus is simple: to be a trusted partner in technology transformation — delivering outcomes reliably and built to last.

We are currently looking for a Senior Java Developer to join our team.

Job Type

1-year renewable contract

Job Requirement

• 8 to 12 years of relevant experience
• Core Java 8+ and JUnit.
• Spring Boot
• Strong computer science knowledge (algorithms, data structures, object-oriented design)
• TDD. Able to write acceptance test.
• Maven
• Basic Linux shell scripting commands
• Java Messaging Concepts. (JMS, MQ)
• Web Services Rest, SOAP.
• Spring core concepts.
• Experience in SQL queries optimisation
• Familiarity with Intellij, Git, SonarQube/SonarLint
• Able to write/understand complex SQL queries.
• Kafka
• React JS, or Angluar

kEY FEATURES OF THE POSITION

Functional / Technical

• Communicate highly technical issues to non-technical audience.
• Earn good reputation of being technically strong in the organization by help solving problems others struggle
• Development and delivery with Java, EJB, Spring Boot, MySQL and IBM MQ.
• Understand business / system requirements and translate them into technical solutions that are scalable, stable and fit for purpose.
• Tackle very complex legacy defects that mediocre developers cannot analyse/solve.
• Ensure adherence to the bank standards (including code, security and performance).
• The role provides exposures to Wealth Management systems (CRM, Client on-boarding, KYC, AML, Name Check, Documentum, Captiva, GMC, and Liferay Portal).
• Passionate about technologies and building robust and scalable Java Systems.
• Analysis, design coding, and implementation of complex and custom-built applications.
• Work collaboratively with team to achieve goals. Experience working in Agile methodologies, such as Scrum, and/or Extreme programming.
• Experience in following in following best practices like Test-Driven Development (TDD) and continuous Integration (CI)
• Investigate and resolve production issues to help maintain a stable production environment; remain cool and effective in crisis.

Why Join Helius:

At Helius Technologies, you will work on complex technology initiatives with leading enterprises across Asia and the Middle East, alongside a diverse and experienced engineering community.

You will collaborate with 1,000+ technology professionals across a regional delivery network spanning 7 countries, supporting enterprise clients in BFSI, healthcare, and the public and private sectors, backed by 20+ years of enterprise technology delivery experience.

We operate in environments where reliability, accountability, and disciplined execution matter — and where strong engineering and structured delivery come together to drive meaningful outcomes.

Singapore -Malaysia- India - Thailand – Japan