Job Vacancies at PiggyTech Global Limited

Job Summary

• We are building the backbone of a high-scale banking platform where "zero downtime" and "absolute data integrity" are the baseline. As a Senior Engineer, you will lead the architectural strategy for our core ledger and transaction processing systems. You will be responsible for ensuring that our systems are not only blazing fast but also cryptographically secure and audit-ready. The Tech Landscape Languages: Node.js/TypeScript, Go (Golang), and Java (Spring Boot/Quarkus). Data & Consistency: MySQL (High Availability), Redis, Kafka/RabbitMQ. Security: OAuth2, OpenID Connect, HSMs, and PCI-DSS compliance.

Job Details

• Core Ledger Design: Architect and maintain double-entry bookkeeping systems and real-time transaction engines.
• Security-First Development: Implement rigorous security protocols, including end-to-end encryption, secure key management, and protection against OWASP Top 10 vulnerabilities.
• High-Scale Reliability: Design distributed systems that handle thousands of transactions per second (TPS) while maintaining strict ACID properties.
• Banking Domain Leadership: Navigate the complexities of financial regulations, ensuring every system change is auditable and compliant.
• Cross-Functional Mentorship: Guide mid-level and senior engineers in writing defensive, high-performance code across multiple languages (JS/Go/Java).

Requirements

• Experience: 6+ years in software engineering, with at least 3+ years specifically in Banking or Fintech (Payments, Wallets, or Core Banking).
• Polyglot Proficiency: Expertise in Node.js and Go, with a strong background in Java for heavy-duty enterprise logic.
• The "Security Mindset": You don't treat security as an afterthought. You understand idempotency, replay-attack prevention, and data masking.
• Distributed Systems Expert: You know how to manage distributed transactions and eventual consistency without losing a single cent.
• Resilience: Experience working in high-pressure environments where system reliability is mission-critical.

Technical Deep-Dive Requirements

• Experience with Event Sourcing or CQRS patterns.
• Deep understanding of database isolation levels and locking mechanisms.
• Knowledge of ISO 8583 or ISO 20022 messaging standards is a significant plus.

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Job Summary

• We are looking to hire for a proactive Mid-level Technical Support Engineer to join our fast-paced team. This isn't a "read from a script" role. You will be digging into the codebase, debugging complex issues, and writing scripts or patches to resolve customer pain points. You are the first line of defense for our technical ecosystem and a vital contributor to our product's stability. The Stack Languages: JavaScript / TypeScript (Node.js) Database: SQL (MySQL) Tools: Postman, Log management (GCP/Huawei)

Job Details

• Code-Level Debugging: Go beyond surface-level symptoms to identify bugs within our Node.js and TypeScript environment.
• Rapid Resolution: Provide timely, technical solutions to user-reported issues in a high-pressure, fast-paced setting.
• Scripting & Automation: Write scripts to automate repetitive support tasks or perform data corrections in MySQL.
• Documentation: Translate complex technical "fixes" into clear internal documentation and user-facing knowledge base articles.
• Collaboration: Act as the filter between Support and Engineering, escalating only the most complex bugs with reproducible steps and code snippets.

Requirements

• Experience: 3+ years as a junior/midlevel backend engineer (2+ years working as a technical support engineer).
• Coding Ability: You are comfortable reading and writing JavaScript/TypeScript. You can navigate a repo and understand how functions interact.
• SQL Proficiency: You can write joins and complex queries to investigate data discrepancies in MySQL.
• Thick Skin & Fast Pace: You thrive when the "house is on fire." You can prioritize a high volume of tickets without losing your cool.
• Communication: You can explain a "Race Condition" to a non-technical customer success manager and a "Null Pointer" to an engineer with equal clarity.

Added Advantage

• Experience with REST API troubleshooting and tools like Postman.
• Knowledge of cloud logging platforms.
• Previous experience in a startup environment.

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Job Summary

• We are looking to hire a battle-hardened Senior Backend Software Engineer to take ownership of our core infrastructure. You won't just be closing tickets; you will be designing the blueprint for how our systems scale. This role is perfect for someone who thrives in an autonomous environment and believes that "working code" isn't enough—it must be performant, maintainable, and architecturally sound. The Stack Primary: Node.js (TypeScript) Database: MySQL / Relational Databases Bonus Skills: Golang, Microservices, Cloud Infrastructure (AWS/GCP)

Job Details

• Architectural Leadership: Design and implement robust, scalable backend services that can handle high-traffic volume.
• End-to-End Ownership: Lead projects from initial requirements gathering through to deployment and monitoring.
• System Optimization: Profile and optimize MySQL queries and Node.js event-loop performance to ensure low latency.
• Code Excellence: Maintain high standards through rigorous code reviews, documentation, and the application of Clean Architecture principles.
• Autonomous Execution: Operate with minimal supervision, making high-level technical decisions that align with business goals.

Requirements

• Experience: 5+ years of Software engineering experience (specifically 3+ years in managing and scaling high-traffic production environments).
• Technical Depth: Deep proficiency in Node.js and TypeScript. (Exposure to Golang is a massive plus for our high-concurrency needs).
• Database Mastery: You don't just write SQL; you understand indexing, schema design, and how to optimize relational databases for scale.
• Architectural Mindset: You are familiar with patterns like Hexagonal Architecture, DDD, or Onion Architecture and know when (and when not) to use them.
• Self-Starter Mentality: You have a proven track record of working independently in a remote or distributed team.