Senior Backend Engineer – Platform

Ajaib

. Design, build and maintain shared backend services and APIs used by many product teams .

Posted 11/4/2026full-timeJakarta • IndonesiaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend engineering with a strong focus on Java or Go, microservices architecture, and API development. Proven ability to deliver secure, reliable services while collaborating effectively with cross-functional teams.

Highest-signal resume keywords

Backend EngineeringJava ProgrammingMicroservices ArchitectureAPI DevelopmentCloud Platforms

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaGoMicroservicesREST APIsGRPC APIsRelational DatabasesRedisKafkaOAuth2JWT

Soft Skills

Clear CommunicationOwnership MindsetService Attitude

Tools & Technologies

GCPAWSContainersCI/CD

Industry Keywords

FintechRegulated Environment

Tech Stack

Tools & technologies

AWSCloudGoogle Cloud PlatformGRPCJavaKafkaMicroservicesRedisGo

About the role

Key responsibilities & impact

Design, build and maintain shared backend services and APIs used by many product teams
Deliver features from technical design to production, with tests, monitoring and alerting
Keep APIs stable and backward compatible, and communicate changes clearly to consuming teams
Build secure services that protect user identity, sessions and personal data
Write clear documentation and examples for service users
Write clean, well-tested code and participate actively in code reviews
Investigate production issues, identify root causes and help ship lasting fixes
Improve the performance and reliability of owned services
Collaborate with product engineering teams, Security and Infrastructure to turn requirements into reliable solutions

Requirements

What you’ll need

Bachelor's degree in Computer Science or equivalent practical experience
4+ years of professional backend engineering, including running services in production
Strong in Java, Go or another modern backend language
Good understanding of microservices, REST/gRPC APIs, event-driven design and reliability basics
Hands-on experience with relational databases, including query tuning
Hands-on experience with Redis caching
Hands-on experience with Kafka messaging
Working knowledge of authentication and authorization, including OAuth2 and JWT
Experience with cloud platforms such as GCP or AWS
Experience with containers and CI/CD
Ownership mindset, clear communication and a service attitude toward internal users
Experience in fintech or another regulated environment is a plus

Benefits

Comp & perks

Performance Bonus - Get rewarded for the impact you make
Private Insurance - Comprehensive health coverage for you
Paid Time Off - Take the time you need to recharge and come back stronger
Learning & Development - Company-sponsored training, courses, and professional certifications
Hybrid Work Arrangement - Enjoy the flexibility of working both remotely and from the office
Career Growth - Work closely with experienced leaders and take on meaningful ownership as we scale
Employee Perks - Enjoy exclusive discounts, partnerships, and lifestyle perks
Collaborative & High-Ownership Culture - Work with smart, driven people in cross-functional teams, take ownership, and make a meaningful impact for our users.