01
Java
Required
TRCD-26-04716
Java Code Quality / Refactoring Engineer (Service Layer, SOLID, Concurrency)
Contract role in Bengaluru for a Java engineer (3–7 years) focused on improving existing Java service-layer code quality. The resource will solve programming questions (LeetCode-style) and refactor order-processing services to meet coding standards and SOLID/OOP best practices, while identifying and fixing design flaws, concurrency/thread-safety issues, exception handling and resource management problems, plus performance bottlenecks, memory leaks, and vulnerabilities. Emphasis is on clean, maintainable, reusable code with reduced duplication and improved validation/utilities.
Position summary
- Location
- India
- Workplace
- On-site
- Employment
- Contract
- Experience
- Minimum 3 years and Maximum 7 years
Role overview
Why This Role Matters.
Contract role in Bengaluru for a Java engineer (3–7 years) focused on improving existing Java service-layer code quality. The resource will solve programming questions (LeetCode-style) and refactor order-processing services to meet coding standards and SOLID/OOP best practices, while identifying and fixing design flaws, concurrency/thread-safety issues, exception handling and resource management problems, plus performance bottlenecks, memory leaks, and vulnerabilities. Emphasis is on clean, maintainable, reusable code with reduced duplication and improved validation/utilities.
Your Impact
Deliver Enterprise Value
Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.
Collaboration
Work Across Teams
Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.
Growth
Learn Continuously
Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.
Career Path
Grow With Ubique
Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.
Responsibilities
What You'll Be Doing.
Every role at Ubique contributes directly to solving meaningful business challenges for our clients.
Technology stack
Tools & Technologies.
The platforms and technologies you'll use to build modern, enterprise-grade solutions.
02
OOP
Required
03
SOLID
Required
04
Refactoring
Required
05
Service layer
Required
06
Code review
Required
07
Concurrency
Required
08
Thread safety
Required
09
Synchronization
Required
10
Thread-safe collections
Required
11
Exception handling
Required
12
Resource management
Required
13
Memory leaks
Required
14
Performance bottlenecks
Required
15
Order processing services
Required
16
Reusable utilities
Required
17
Validators
Required
18
Coding standards
Required
19
LeetCode
Required
Requirements
Skills & Experience.
We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.
Essential
Required Qualifications
Java (service-layer/backend code)
Strong OOP fundamentals and design principles (SOLID)
Refactoring for readability, maintainability, and separation of concerns
Concurrency and thread safety (synchronization, thread-safe collections)
Exception handling best practices
Resource management (e.g., avoiding leaks, proper cleanup)
Code review and coding standards enforcement
Performance analysis and bottleneck identification
Ability to solve programming problems (LeetCode-style)
Preferred
Nice to Have
Static code analysis and quality tooling (e.g., SonarQube/SpotBugs/Checkstyle)
Profiling and memory leak analysis tools (e.g., VisualVM/JFR)
Secure coding awareness (identifying common vulnerabilities)
Design patterns knowledge (as applied to service-layer design)
Unit testing/refactoring safety nets (e.g., JUnit/Mockito)
What you'll gain
More Than Just A Job.
We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.
Global Exposure
Collaborate with international clients and multicultural teams on enterprise programmes.
Continuous Learning
Expand your expertise through mentoring, certifications and hands-on project experience.
Career Growth
Take ownership, develop leadership skills and grow your consulting career over time.
Flexible Working
Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.
People First
Join a supportive culture where collaboration, respect and long-term relationships come first.
Enterprise Projects
Work on meaningful technology initiatives for leading organisations across industries.
Apply
Apply for Java Code Quality / Refactoring Engineer (Service Layer, SOLID, Concurrency)
One page, about two minutes. We only ask for what we actually need to have a first conversation.