Backend Engineer (Junior to Mid-Level)

Coins.ph; Taguig; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

Coins.ph in the Philippines is seeking a Backend Engineer to design, build, and scale Java-based microservices for its payments platform. You will work with senior engineers regionally, using AI tools to test, ship, and improve features in a fast-paced environment.

You will collaborate with product, risk, finance, and compliance teams, including Mandarin-speaking colleagues, to deliver secure and compliant payments solutions. This role is based in Manila and requires strong backend fundamentals.

Qualifications

• 1–5 years of professional backend development experience.
• Strong Java (Spring Boot) experience; other languages a plus.
• Familiarity with microservices, RESTful APIs, and relational databases.
• Interest in AI and AI tooling (coding tools, LLMs, AI APIs).
• Mandarin Chinese proficiency required; business English also required.
• Solid CS fundamentals: data structures, algorithms, distributed systems.
• Strong problem-solving, ownership, and eagerness to learn.

Responsibilities

• Build and ship backend services using Java-based microservices for our payment platform.
• Protect user funds with reconciliation, exception-handling, and monitoring.
• Integrate with banks, local and international payment partners; support multi-currency/FX flows.
• Use AI-assisted development tools to improve productivity and prototype AI features.
• Improve reliability and performance; troubleshoot production issues and ensure scalability.
• Collaborate with product, risk, finance, compliance, and Mandarin-speaking teams.

Skills

Java

Spring Boot

Microservices

RESTful APIs

Relational databases

AI interest

Mandarin Chinese

English proficiency

Tools

Kafka

RabbitMQ

Redis

Docker

Kubernetes

AWS

GCP

Alibaba Cloud

Job description

Join the Pioneer Crypto Brand in the Philippines!

Coins is the most established crypto brand in The Philippines and has gained the trust of more than 18 million users.

Through the easy-to-use mobile app, users can buy and sell a variety of different cryptocurrencies and access a wide range of financial services.

Coins is fully regulated by the Bangko Sentral ng Pilipinas (BSP) and is the first ever crypto-based company in Asia to hold both Virtual Currency and Electronic Money Issuer licenses from a central bank.

We're looking for a Backend Engineer who wants to grow their career building payment systems used by millions. You'll work with senior engineers and architects in a regional team, and you'll use AI tools every day to build, test, and ship faster.

What You'll Do

• Build and ship backend services: Design, develop, test, and maintain Java-based microservices that run our payment platform. Contribute to features across the payment lifecycle, including acquiring, clearing, settlement, and ledger accounting.
• Protect user funds: Help build and improve reconciliation jobs, exception-handling flows, and monitoring that keep every transaction accurate and every peso accounted for.
• Integrate with partners: Work on integrations with banks, local payment methods, card networks, and international payment partners. Along the way you'll learn how multi-currency and FX flows work.
• Use AI in your daily work: Use AI-assisted development tools (e.g., code assistants, AI-driven testing, and debugging) to work more productively. Help explore and prototype AI-powered features and internal tools.
• Improve reliability and performance: Troubleshoot production issues, write clean and well-tested code, and help make our systems more available, scalable, and efficient.
• Collaborate across teams and regions: Work closely with product, risk, finance, and compliance, as well as Mandarin-speaking engineering and business teams, to deliver secure and compliant solutions.

What We're Looking For

• 1–5 years of professional backend development experience. Strong fresh graduates with solid internship or project experience are welcome to apply.
• Hands-on experience with Java (Spring Boot preferred). Experience in other backend languages is a plus if you're willing to work mainly in Java.
• Familiarity with microservices architecture, RESTful APIs, and relational databases (e.g., MySQL, PostgreSQL).
• A strong interest in AI, such as regularly using AI coding tools, experimenting with LLMs or AI APIs, or building AI-powered side projects.
• Proficiency in Mandarin Chinese (spoken and written) is required. You'll work regularly with Mandarin-speaking teams and stakeholders. Business-level English is also required.
• A good grasp of computer science fundamentals: data structures, algorithms, and basic distributed systems concepts.
• Strong problem-solving skills, ownership, and eagerness to learn.

Nice To Have

• Exposure to fintech, payments, banking, e-wallets, or crypto.
• Experience with message queues (e.g., Kafka, RabbitMQ), caching (e.g., Redis), or containerization (Docker, Kubernetes).
• Understanding of transaction consistency, idempotency, or reconciliation concepts.
• Experience with cloud platforms (AWS, GCP, or Alibaba Cloud).

Join the Coins Team Now!

Meaningful Collaborations - The successful candidate will work cross-functionally with other relevant teams to carry out implementations that will improve and create an impact on customer experience.

Scalable Growth - Be part of a fast-growing organization with the vision to expand its territories outside APAC which will provide opportunities for career advancement.

A Space For Bright Ideas - Let your bright ideas be converted into meaningful changes! Coins culture welcomes new ideas backed up by data to create an impact.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.