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Alazar Girmachew

@alazargirmachew

Message

I build secure, high-throughput fintech platforms and payment microservices at scale.

Ethiopia

Message

What I'm looking for

I'm looking to lead and build secure, high-throughput backend and fintech platforms, solving complex transaction, reliability, and distributed-systems challenges while mentoring engineers.

I'm building high-throughput financial microservices for Commercial Bank of Ethiopia’s CBE Superapp, supporting 10M+ users and 100K+ daily transactions. I designed an idempotency layer that reduced data inconsistencies by 45% and eliminated double-spend risks during network partitions.

Across CBE Connect, Starpay, and Dashen Bank Superapp, I've delivered secure banking APIs, wallet services, and message-driven financial workflows. My work includes 45+ Node.js, TypeScript, and gRPC microservices serving 120M+ monthly requests with P95 latency below 120ms.

I've improved transaction performance, reliability, and security through Kafka, RabbitMQ, Redis, PostgreSQL, MySQL, MongoDB, PCI-DSS controls, RBAC, encrypted authentication, and resilience patterns. I’ve also led squads and mentored junior engineers while maintaining platforms with up to 99.99% availability.

Earlier, I built backend systems for airline booking, payments, and e-commerce, including containerized microservices, payment integrations, inventory synchronization, and transaction-safe booking flows. I focus on dependable systems that handle real financial and customer workloads at scale.

Experience

Work history, roles, and key accomplishments

Current

Senior Tech Lead

Current

EagleLion Systems Technology

Jan 2025 - Present (1 year 8 months)

Architected and supervised high-throughput financial microservices supporting 10M+ users and processing 100K+ daily transactions. Designed an application-level Idempotency Layer using request payload hashing and atomic SQL transactions, reducing data inconsistencies by 45%.

NodeJS TypeScript REST APIs SQL Idempotency Microservices Telemetry

Senior Backend Engineer

EagleLion Systems Technology

Mar 2024 - Dec 2024 (9 months)

Guaranteed transactional isolation across 15+ distributed databases using Prisma ORM. Implemented PCI-DSS standards, RBAC, and encrypted authentication, reducing compliance vulnerabilities by 35%.

Prisma ORM PostgreSQL MySQL MongoDB PCI DSS RBAC Authentication Authorization Indexing Search

Team Lead

EagleLion Systems Technology

Apr 2023 - Feb 2024 (10 months)

Architected secure wallet microservices and high-throughput APIs for asset custodial operations, achieving 71% faster transaction processing. Mentored 6 junior developers and maintained 99.99% platform availability.

Microservices API Design Clean Architecture Circuit Breakers Retry Mechanisms Mentorship

Backend Engineer

GuzoGO

Jun 2021 - Dec 2021 (6 months)

Defined backend services for an airline ticket purchasing system supporting 95% concurrent booking operations. Developed high-availability search and payment APIs with Redis caching and load balancing, reducing latency by 41%.

TypeScript NodeJS REST APIs Redis Load Balancing Docker Kubernetes Microservices

Backend Engineer

CashGO

Jun 2020 - May 2021 (11 months)

Implemented deterministic transaction matching and idempotent checks, reducing reconciliation discrepancies by 30%. Secured payment workflows with Mutual TLS and cryptographic request signing, reducing vulnerabilities by 45%.

NodeJS TypeScript TLS MTLS Cryptography Idempotency Payment Systems

Junior Backend Engineer

Exceed IT Systems

Mar 2019 - Jun 2020 (1 year 3 months)

Automated scalable e-commerce backend APIs serving 1.8M+ customers and 420K+ SKUs. Implemented order lifecycle orchestration and connected payment gateways, maintaining 99.95% transaction success rates.

NodeJS TypeScript REST APIs Payment Gateways Inventory Management Ecommerce