Senior Backend Engineer (Java / Spring Boot) | 6-Month Contract

Omise Pro is a software development company specializing in end-to-end project delivery and digital transformation.
We partner with clients to design, build, and implement technology solutions that support their business goals. This role is part of our delivery organization, working directly with client teams to execute software projects successfully.
You will be joining Omise Pro, Omise’s professional services team, working on custom software delivery and digital transformation projects.
What you will be doing
We need a strong Senior Backend Engineer to act as a technical anchor and "bar raiser." You will take full ownership of features from design to deployment, proactively eliminate technical debt, and cleanly communicate risks to stakeholders.
You
Core Technical Profile
Backend: Expert-level Java and Spring Boot (Node.js is a plus).
Architecture: Deep OOP knowledge with proof of building high-concurrency, event-driven systems (CQRS, SAGA).
Databases: Expert in relational databases (PostgreSQL/MySQL), ACID properties, and performance tuning under heavy loads.
Cloud Platforms: Hands-on experience with at least one major platform (AWS, GCP, or Azure). Azure experience is a strong plus. Must understand pub-sub and message bus architectures.
Testing: High discipline in writing robust unit and integration tests.
Key "Bar Raiser" Traits
Autonomy: Drives feature development end-to-end with minimal oversight.
Proactivity: Continually suggests and executes system/process improvements.
Leadership: Mentors and navigates the team through complex technical landscapes.
AI Literacy (Bonus): Pragmatic use of AI tools (e.g., Copilot), balancing velocity with strict code vetting (hallucinations, security).
Others
Experience in interacting and coordinating software development activities within a team
Ability to effectively communicate within an international team
Ability to explain technical context to business users
Good command of English (Speaking, Writing, and Reading)
Good conceptual and analytical skills - demonstrating outside-the-box problem-solving skills
Possess positive attitude and open for feedback
Omise Pro's Technology Stack
Front-end: React, Next.js
Back-end: Node.js, Java/Spring Boot
Mobile: React Native
Database: PostgreSQL
System Architecture: Microservice
Infrastructure: Azure, Kubernetes, Docker, Elasticsearch
Nice to haves
Experience in E-Wallets technology and financial services is plus
Experience in Cloud infrastructure is a plus
Experience in automated testing is a plus

Employment type
Contractor

Work arrangement
No