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Flex On -Demand Consultants

Senior DevOps Engineer – Cloud, Containers & Automation

Open 15d North AmericaContractSenior

One-year contract Senior DevOps role sourced by recruiter Zohorecruit for a Canadian client: the engineer designs and implements DevOps solutions, scripts and automates cloud provisioning, and documents learnings for diverse audiences in a hybrid office model that requires relocating to another province.

Automation Cloud DevOps

Frontend Developer

Build cross-platform POS and payment kiosk apps in React/TypeScript, integrating with hardware and backend systems to modernize offline retail.

Android CI/CD CRM GitHub GitHub Actions +10 skills

Node.js Developer

Build and maintain Node.js/Nest.js backend services and automation tools to streamline TossPlace’s terminal lifecycle and logistics operations using TypeScript, MySQL, and React.

API MySQL Node.js React Redis +2 skills

80M – 120M KRW

Product Designer

Designs intuitive UX/UI for Toss Place’s offline payment solutions, visiting stores to solve real-world merchant and customer pain points.

Server Developer (Platform)

Build and maintain the core server platform for Toss’s fintech services using Java/Kotlin and Spring, focusing on scalability, monitoring, and distributed systems.

API API Gateway Argo CD Cloud DevOps +19 skills

IDC Infrastructure Engineer (Network & System)

Designs and operates data-center infrastructure (network, servers, storage, power, space) for Toss Securities, focusing on stability, automation, and standardization.

API CMDB Linux REST SNMP

ML Backend Engineer

Designs and builds backend services for AI-driven banking products, focusing on scalable ML model serving and robust server architecture in a microservices environment.

AI Kotlin Machine Learning Python

100M – 150M KRW

ML Engineer (Product)

Builds and deploys AI/ML systems for banking services like fraud detection, lending models, and LLM-based agents in a high-traffic, regulated environment.

AI Fine Tuning Kubernetes LLM Machine Learning +4 skills

Node.js Developer

Build and maintain Node.js services for a leading fintech platform, handling payments, banking, and financial infrastructure.

Platform Product Owner

Owns internal banking platforms that support loan, deposit, and card teams, designing admin systems and automating workflows to boost productivity for Toss Bank’s staff.

AI LLM Machine Learning SaaS

Platform Product Owner

Designs and builds shared infrastructure like authentication, finance, and risk systems that power Toss’s products and teams.

Platform Product Owner (Facepay)

Own the Facepay platform that powers facial-recognition payments across stores, offices, and apps, coordinating hardware integrations, partner requirements, and end-to-end delivery.

Platform Product Owner (Global)

Owns Toss’s global identity, KYC, account, and membership platforms that underpin all country-specific products, aligning stakeholders and driving shared infrastructure for fintech services.

API Authentication Fintech Solution Design

Product Designer (Chart)

Designs intuitive chart interfaces for Toss Securities’ trading platforms, focusing on readability and user experience across mobile and desktop.

Product Designer (Japan)

Designs intuitive investment experiences for Japanese users, adapting Toss Securities’ UX to local needs and leading end-to-end product decisions.

Product Designer (Trading)

Designs intuitive trading interfaces for Toss Securities, focusing on order flows, error prevention, and real-time feedback across mobile and web.

Product Designer (WM Membership)

Designs premium subscription flows and UI for high-net-worth investors in Toss Securities’ WM membership product, using data to improve conversion and retention.

Product Owner

Owns fintech products like payments, lending, or ads at Toss, setting goals, running experiments, and iterating to improve user outcomes and business metrics.

Product Owner [Commerce]

Owns core commerce features like ads, order flow, search, and promotions for Toss Shopping, a fast-growing B2C ecommerce platform.

QA Manager(Global)

Leads quality assurance for Toss’s mobile apps and web services, defining test plans and improving QA processes to prevent defects in a fast-moving fintech product.