Senior Backend Engineer – US Stocks

Ajaib

. Design, build and maintain backend services and APIs for US stock trading, funding and portfolio features .

Posted 11/10/2026full-timeRemote • 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. Capable of integrating with brokerage systems and ensuring data accuracy and reliability in a regulated financial environment.

Highest-signal resume keywords

Backend EngineeringJava or Go ProgrammingMicroservices ArchitectureAPI DevelopmentCloud Platforms (GCP or AWS)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend EngineeringJavaGoMicroservicesREST APIsGRPC APIsRelational DatabasesRedis CachingKafka MessagingCI/CD

Soft Skills

Ownership MindsetClear Communication

Tools & Technologies

GCPAWSRedisKafkaContainers

Certifications & Qualifications

Bachelor's Degree in Computer Science

Industry Keywords

BrokerageTradingPaymentsCross-Border Money MovementRegulated EnvironmentAPI-First BrokeragesFIX Protocol

Tech Stack

Tools & technologies

AWSCloudGoogle Cloud PlatformGRPCJavaKafkaMicroservicesRedisGo

About the role

Key responsibilities & impact

Design, build and maintain backend services and APIs for US stock trading, funding and portfolio features
Deliver features from technical design to production, with tests, monitoring and alerting
Integrate with US brokerage and custody partners and safely handle failures, delays and duplicate messages
Ensure money, quantities, prices and currency conversion are handled accurately with clear audit trails
Support reconciliation between company records and partners' records and help resolve mismatches at the root
Write clean, well-tested code and actively 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 with multiple Liquidity Providers, such as Alpaca
Handle complex order lifecycles and partial fills across different venues
Handle real-time market data streaming and strict rate limits across concurrent external partner APIs
Work closely with Tech Leads and Staff Engineers under mentorship, progressing toward Senior II responsibilities and broader architectural influence

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 or Go
Good understanding of microservices, REST/gRPC APIs, event-driven design and reliability basics
Hands-on with relational databases, including query tuning
Experience with Redis caching
Experience with Kafka messaging
Experience with cloud platforms such as GCP or AWS
Experience with containers and CI/CD
Experience in brokerage, trading, payments, cross-border money movement or another regulated environment is a strong plus
Familiarity with modern API-first brokerages such as Alpaca or DriveWealth, or the FIX protocol, is a plus
Proven ability to learn complex domain systems quickly
Ownership mindset and clear communication

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.