GFT Technologies Vietnam

Overview of job

Role Summary

We are seeking a hands-on and highly skilled Lead/Senior Golang Developer to lead the development and optimization of high-performance backend and batch-processing systems for large-scale banking platforms.

You will be responsible for technical design, implementation, performance optimization, troubleshooting, and production support. The role requires strong expertise in Golang, particularly in concurrency, memory management, profiling, and performance tuning.

This position is ideal for an experienced backend engineer who is passionate about building reliable systems, developing reusable Golang components, and resolving complex technical issues within demanding delivery timelines.

Key Responsibilities 

• Technical Leadership & Architecture: Lead the technical design and development of backend services using Golang and Gin, ensuring scalability, maintainability, security, and system reliability.
• Performance Optimization: Analyze and optimize application performance, with a strong focus on concurrency, goroutines, memory management, garbage collection, resource utilization, and profiling.
• Batch Processing: Design, develop, and maintain high-volume batch-processing solutions supporting banking operations such as fee collection, payment processing, debt recovery, reporting, and outbound data processing.
• Solution Delivery: Lead the full software development lifecycle, including requirement analysis, technical design, implementation, testing, deployment, production support, and continuous improvement.
• Database Management: Develop and optimize database solutions involving large data volumes, complex queries, transactions, database partitioning, and data archiving.
• Reusable Components: Design and build reusable Golang libraries, frameworks, and shared components for use across multiple backend services.
• File Processing: Develop secure and efficient file-processing solutions, including file streaming, compression, decompression, encryption, and decryption using ZIP and AES.
• API Development: Design, develop, and maintain RESTful APIs following OpenAPI standards and secure API design principles. 
• System Integration: Integrate backend services with Kafka, Redis, PostgreSQL, job-scheduling platforms, and external systems.
• Production Support: Investigate and resolve application defects, performance issues, failed batch jobs, and production incidents within strict resolution timelines.
• Team Collaboration: Work closely with developers, DevOps engineers, QA teams, business analysts, and other stakeholders to ensure alignment with technical and delivery objectives.
• Code Quality & Best Practices: Promote clean code, effective code reviews, automated testing, secure development practices, coding standards, and engineering best practices.
• Monitoring & Deployment: Support application deployment, monitoring, logging, troubleshooting, and operational activities using Docker, Kubernetes, Argo CD, CloudWatch, and OpenSearch.

HR benefits

• Competitive salary
• Salary band per level are reviewed once per year
• 13th month salary pro rata depending on the employee’s length of service (within a calender year), paid with the December salary
• Monthly lunch allowance: 700,000 VND/employee
• Parking: GFT covers the monthly parking fee for employee motorbikes
• Performance evaluation is once per year, for 2 purposes:
     > Performance bonus   > Salary increments

Health care

• Private health insurance: including accident, outpatient, in-patient, maternity, and dental for all permanent employees who pass 2-month probation.
• Optical: expense claim for eyewear
• Annual health check-ups.

Vacation

• Maximum 18-day vacation leave/year (with the ability to carry over 05 days till 31st March of the following year)
• Adding one more annual leave day for each two-year anniversary.

Healthy lifestyle

• Sports and hobby clubs: company has an annual fund for fitness activities, which is allocated per month as team’s vote.
• Range of healthy snacks, tea, coffee, milk and beer on tap

Social

• Company townhall: each 6 weeks
• CSR activities: as per company’s CSR guideline
• Onsite tour/training courses at other GFT offices and client’s destination overseas (where applicable).