Sr. Backend Engineer I - US Stocks
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Ajaib GroupFintech brokerage
Jakarta, Jakarta, IndonesiaFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 4+ years of professional backend engineering, including running services in production.
- Required Skills
- AWSGCPJavaKafkaGogRPCRedisRESTful APIsMicroservices
Requirements
- Have a Bachelor's degree in Computer Science or equivalent practical experience.
- Have 4+ years of professional backend engineering experience, including running services in production.
- Have strong skills in Java or Go.
- Understand microservices, REST/gRPC APIs, event-driven design, and reliability basics.
- Have hands-on experience with relational databases, including query tuning.
- Have experience with Redis caching and Kafka messaging.
- Have experience with cloud platforms such as GCP or AWS, containers, and CI/CD.
- Bring an ownership mindset and clear communication.
- Be able to learn complex domain logic and new systems quickly.
- Experience in brokerage, trading, payments, cross-border money movement, or another regulated environment is a plus.
- Familiarity with API-first brokerages such as Alpaca or DriveWealth, or with the FIX protocol, is a plus.
Responsibilities
- Design, build, and maintain backend services and APIs for US stock trading, funding, and portfolio features.
- Deliver features from technical design through production, with tests, monitoring, and alerting.
- Integrate with US brokerage and custody partners, handling failures, delays, and duplicate messages safely.
- Ensure money, quantities, prices, and currency conversion are handled accurately, with clear audit trails.
- Support reconciliation between company and partner records, and help fix mismatches at their root.
- Write clean, well-tested code and participate in code reviews.
- Investigate production issues, identify root causes, and ship lasting fixes.
- Work with Product, Operations, and Compliance to turn requirements into reliable solutions.
- Learn to build and scale Smart Order Routing logic across multiple Liquidity Providers, handling order lifecycles and partial fills across venues.
- Handle real-time market data streaming and rate limits across concurrent external partner APIs.
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