Senior Java Developer

Optimum Solutions • IT Consulting & Digital Transformation • IT Resellers & VARs • JavaScript • Java • SQL • 2 days ago
Apply now
Similar jobs
812,029open jobs
52,282companies
130,514added this week
Browse all
Salary
$66k – $113k per year (gross)
Location
In office (Singapore)
Seniority
Senior · 8+ years exp
Employment
Contractor

First seen by Alion on Sep 25, 2026.

Overview
Company
Impact
Profile match

Optimum Solutions

Optimum Solutions is an IT services and outsourcing company headquartered in Singapore that provides software engineering, application development and maintenance, data and analytics, cloud and infrastructure, testing and global capability centre services. Founded in 1997, it reports more than 4,000 employees across offices and delivery centres in nine countries, including India and China, and supplies contract IT staff to banks and global technology clients. Its Singapore listings cover Java and .NET developers, DevOps and GenAI engineers, business analysts, scrum masters, UX designers, compliance associates and contract privacy support and AI video roles.
theoptimum.net • HQ: Singapore • IT Resellers & VARs • IT Consulting & Digital Transformation • 1001-5000 employees • Est. 1997

Responsibilities:

  • Participate in the requirement elicitation and produce the required technical and operations documentation
  • Work with Solution Architect/Technical Lead on the analysis and design of the code changes according to the finalized requirement specifications
  • Perform code changes and test the system according to the requirements specifications
  • Ensure work performed comply to coding and security standards, and corporate processes
  • Perform quality assurance (QA) activities such as unit testing, system testing and code review
  • Participate in the system integration testing by rendering support to the Test Team and resolving issues reported.
  • Provide support to internal and external parties during the testing stages
  • Provide support to customers during acceptance testing and post-cutover implementation.
  • Assist in the development of training materials and conducting of presentation

Requisites:

  • Diploma or bachelor’s degree in computer science/engineering or equivalent education
  • Minimum 8 years hands-on experience in Java backend development delivering production-grade systems (microservices, APIs, event processing, web-portal, production support).
  • Strong experience with cloud native systems and  operations  (any of the following): API Gateway / ALB, ECS/Fargate, RDS, S3, CloudWatch/CloudTrail, WAF
  • Familiarity with CI/CD pipelines and tools such as Jenkins / Bitbucket / Octopus / Terraform (or equivalents).
  • Good technical knowledge with at least 5 years of hands-on experience in Java, J2EE, SQL/PLSQL, and XML.
  • Experienced with RESTFul APIs, Spring 5.x, Spring Boot, Spring Framework, Spring Security, Cloud-Based technologies and Micro-services, including Messaging Middleware such as Kafka/IBM MQ/Solace.
  • Experienced with application running in container platform (Docker, OpenShift, Kubernetes).
  • Good verbal and written communication skills
  • Demonstrate good analytical, problem solving and decision-making skills
  • Good team player and positive attitude
  • Domain knowledge and experience in financial industry/payments systems is a plus

Skills

Cloud Applications, Kubernetes, Java 8, JDK, AWS, Spring Framework, Application Development, JavaScript, Spring MVC, Spring Boot, Microservices Design, Core Java, Spring Batch, Systems Design, Java, Backend Development, AWS Lambda, J2EE, Software Development, Agile Development

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
812,029 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Singapore
Apply
In office • Bachelor's Degree
Management
Agile
Apply
In office • 6+ years exp • Bachelor's Degree
JavaScript
TypeScript
SQL
PowerShell
C#
C#
.NET
Frontend
Angular
DevOps
Rest API
CI/CD
Git
Management
Power Automate
Power Apps
Agile
Scrum
Apply
In office • 5+ years exp • Bachelor's Degree
PowerShell
DevOps
Linux
Windows
Cybersecurity
Microsoft Defender
Tanium
Apply
Apply
$65k – $150k per year • Remote (United States) • Full-Time • 3+ years exp • New York
Python
JavaScript
PHP
TypeScript
SQL
Node JS
AI/ML
Prompt Engineering
AI Agents
LLM
Multi-Agent Systems
Frontend
React.js
Mobile
Twilio
DevOps
CI/CD
Git
AWS
Docker
Apply
Product Engineer 1 day ago
$120k – $150k per year • Equity 0.1–0.5% • Remote (United States, PST hours) • Full-Time • 3+ years exp • Bachelor's Degree • San Francisco
Python
JavaScript
Databases
PostgreSQL
ClickHouse
AI/ML
Machine Learning
Frontend
Next.js
React.js
Apply
≈ $81k – $179k per year (Estimated) • In office • Full-Time • 5+ years exp • Toronto
Python
Databases
Apache Kafka
AI/ML
Anomaly Detection
DevOps
Terraform
Ansible
GCP
Red Hat
OpenShift
Dynatrace
PagerDuty
Prometheus
Azure
CI/CD
AWS
Kubernetes
Grafana
Platform Engineering
Self-Healing
Incident Management
Linux
Management
ServiceNow
Agile
Apply
$209k – $239k per year • In office • Full-Time • 9+ years exp • Bachelor's Degree • Chicago
Python
Java
SQL
Scala
Python
pySpark
Databases
Snowflake
Databricks
Cassandra
DynamoDB
Amazon Redshift
AI/ML
Spark
Dagster
Machine Learning
DevOps
Splunk
GCP
Azure
AWS
Management
Agile
Apply
$215k – $246k per year • In office • Full-Time • 4+ years exp • Bachelor's Degree • New York
JavaScript
TypeScript
AI/ML
Claude
AI Agents
Frontend
Vue.js
Svelte
GraphQL
Angular
React.js
DevOps
gRPC
Canary Release
QA
Cypress
Playwright
Jest
Apply
Software Engineer 2 days ago
$38k – $66k per year (gross) • In office • Full-Time • 3+ years exp • Singapore
SQL
DevOps
Splunk
Apply
$70k – $117k per year (gross) • In office • Contractor • 8+ years exp • Singapore
JavaScript
Java
SQL
C#
Java
Quarkus
C#
ASP.NET Core
Entity Framework Core
Databases
Oracle
Frontend
Storybook
DevOps
OpenTelemetry
Windows Server
AWS
Docker
AWS Lambda
Amazon S3
API Gateway
Apply
$56k – $85k per year (gross) • In office • Full-Time • 5+ years exp • Singapore
Java
Java
Spring Boot
DevOps
Jenkins
Linux
Apply
$66k – $94k per year (gross) • In office • Contractor • 10+ years exp • Singapore
Python
Groovy
Databases
ElasticSearch
OpenSearch
DevOps
Ansible
OpenShift
Kibana
CI/CD
Jenkins
Docker
Kubernetes
Bitbucket
JFrog Artifactory
SLI/SLO/SLA
Linux
Unix
Cybersecurity
SonarQube
Cryptography
OpenSSL
Management
Confluence
Jira
QA
Selenium
Apply
≈ $21k – $48k per year (Estimated) • In office • 5+ years exp • Pune • Chennai
SQL
DevOps
Rest API
Azure DevOps
Azure
SOAP
Management
Confluence
Jira
QA
Swagger
Postman
SoapUI
Apply
Technical Lead 1 day ago
≈ $84k – $218k per year (Estimated) • Hybrid • 8+ years exp • Singapore
JavaScript
Java
Kotlin
TypeScript
Dart
Scala
Scala
Akka
Databases
PostgreSQL
Cassandra
Apache Kafka
Frontend
React.js
Mobile
Flutter
Maestro
DevOps
GCP
CI/CD
AWS
Kubernetes
SRE
Management
Agile
QA
Cucumber
Playwright
Apply
≈ $71k – $186k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Singapore
Python
PowerShell
Bash
DevOps
Terraform
Ansible
CI/CD
Git
AWS
Docker
Kubernetes
SRE
Platform Engineering
Configuration Management
Linux
Apply
≈ $60k – $126k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Singapore
Management
ServiceNow
Agile
Scrum
Kanban
Apply
≈ $33k – $71k per year (Estimated) • In office • Internship • Singapore
SQL
Design
Figma
Management
Google Sheets
Agile
Apply
≈ $32k – $62k per year (Estimated) • In office • Internship • Bachelor's Degree • Singapore
Apply
See all jobs
This is one of many
812,029 more open roles from verified company boards, updated every day.
Browse all jobs Get matched roles