Senior Engineer - Payment & Wallet
Coinhako
We are looking for a Senior Engineer to join our Payments & Wallet team ( also known as PAW ) — the core group handling asset management, compliance , and On-chain Services & Integrations (Superwallet) at Coinhako.
In this role, you will be responsible for designing, developing, and maintaining high-performance services that power our payments and wallet infrastructure. You’ll collaborate with cross-functional teams to ensure seamless integration across systems, optimize transaction workflows, and enhance platform reliability and scalability.
What you'll be doing:- Architect and build scalable backend services. Our tech stack is Rails 7, Go, Sidekiq, REST, AWS, Docker;
- Design and build high-volume APIs used by our frontends and external traders;
- Take initiative to ensure the long-term quality of the code and drive decisions related to the architecture of production systems;
- Manage and maintain custody solutions for digital assets. Ensure the highest level of security and compliance in handling and storing digital assets, including cryptocurrencies, tokens, and digital records;
- Collaborate with other engineers, product managers and designers during various product development stages;
- Improve engineering standards, tooling, and processes.
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field;
- Understand good practices of building and working with APIs;
- Have 5+ years of building scalable distributed systems with a strong background in Ruby, Go is a plus;
- Comfortable with ambiguity and scoping solutions with your teammates;
- You’re organized, proactive and can be your own manager;
- Knowledge of cryptography and security principles in blockchain as well as compliance and regulatory frameworks for cryptocurrency.
- Friendly and fun start-up work culture
- Convenient work location located in the heart of CBD area
- Generous annual leaves on top of national holidays
- Medical coverage including GP, Specialist, TCM, and more
- Self-care benefits and exciting fitness workshops/webinars
- Vibrant office with a well-stocked pantry
Find out more about Coinhako @[ and don't forget to visit our Careers Page @[
By submitting your application to us, you consent to the collection, use, disclosure and processing of your personal data in accordance with our privacy policy, which is accessible at [ policy]( policy).
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto... ..., OKLink and more. About the Opportunity Our Security Engineering team is building AI-driven security infrastructure to protect...SeniorFull timeLocal area
- ...Airwallex Airwallex is the only unified payments and financial platform for global... ...career, join us. About the team The Engineering team at Airwallex is a diverse group of... ...Global services. What you’ll do As a Senior Site Reliability Engineer, you’ll work closely...SeniorWorldwide
- ...where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and... ...governments realize their greatest potential. Title and Summary Senior SRE Engineer Senior SRE Engineer, Site Reliability Engineering Our...SeniorFull timeWorldwide
- ...to help and support one another. One cohesive team. Engage stakeholders to achieve our ultimate goal - Cryptocurrency in every wallet. Are you ready to kickstart your future with us? Benefits Competitive salary Medical insurance package with extended coverage...SeniorFull timeWork at officeRemote workFree visa
- ...Motional is seeking a highly skilled Senior Cybersecurity Engineer to join our Defense Operations team. This operations-focused role puts you on the front lines of our security program, acting as a senior resource for security monitoring, system ownership, and the continuous...SeniorFull timeWork experience placement
- ...freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized... .... What You’ll Be Doing Synthesise needs from Product, Engineering, and Marketing into comprehensive design deliverables, ensuring...SeniorFull timeWorldwide
- ...crypto exchange, and the developer of OKX Wallet, giving millions access to crypto... ...Latin American markets, including regional payment rails, local trading behaviors, regulatory... ...Collaboration Work closely with Design, Engineering, Data, and Marketing to translate user...SeniorFull timeLocal area
- ...The School of EEE invites applications for the position of Senior Research Engineer I (Satellite System Hardware). The Research Engineer will work on a project to conduct the research on development of energy harvesting systems used in low power smart sensors for...Senior
- ...testing field, and establish a blockchain testing system. Your Craft Bachelor's degree or above in computer science, software engineering, or related majors. More than 2 years of experience in blockchain testing and development. Familiar with testing tools such...SeniorRemote jobFull time
- ...Corporate Laboratory is seeking an accomplished and forward-thinking Senior Research Fellow to play a leading role in the development of... ...programs at the forefront of plasma processing and surface engineering. Key Responsibilities: Lead the design, optimization,...Senior
- ...place for you? Join us! Role Overview As a Sr. Enterprise Systems Engineer at Cboe, you will design, engineer, and deliver enterprise... ...customer-facing platforms across our global exchange network. In this senior individual-contributor role, you will be expected to own...SeniorPermanent employmentFull timeWork at officeLocal areaMonday to FridayShift workWeekend work
- ...network, share ideas and create opportunities. Sound like the place for you? Join us! Role Overview The Sr. Site Reliability Engineer (Singapore) is a role served by veteran technologists with a diverse set of skills ranging from software development to systems,...SeniorFull timeShift workNight shiftWeekend work
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto... ...end-to-end product lifecycle, working cross-functionally with engineering, design, marketing, CRM, and analytics to build AI infra and...SeniorFull time
- ...by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of...SeniorFull timeOverseas
- ...reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of...SeniorFull time
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto... ...You will work closely with cross-functional teams, including engineering, design, marketing, and business development, to define product...SeniorFull time
- ...regulated exchange, a self-custody wallet, and a growing ecosystem of... ...across trading, DeFi, payments, and social products — each with... ...Opportunity We're looking for a Senior Visual/UI Designer to join... ...with product designers, engineers, and product managers to ensure...SeniorFull time
- ...crypto exchange, and the developer of OKX Wallet, giving millions access to crypto... ...global design, product, creative, strategy, engineering, and research teams to elevate the cutting... ...Must be native to crypto and have payments experience or interest in investing in Cefi...SeniorFull time
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and... ...evolving market. Join our elite Trading Service team as a Senior Staff Software Engineer, where you will be working with an exceptional team to lead...SeniorFull time
- ...safeguard our user base. We are seeking a pro-active Mid-Level IAM Engineer with a focus on Agentic AI management in a cloud native... ...stakeholders to achieve our ultimate goal - Cryptocurrency in every wallet. Are you ready to kickstart your future with us? Benefits...Full timeRemote workFree visa
- ...freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized... .... About the team: We’re looking for highly driven Mobile Engineers (iOS) to join our Compliance & KYC engineering team, where you...SeniorFull timeLocal area
- ...freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized... ..., OKLink and more. About the team: As a mobile software engineer, you will build and maintain a core OKX app with millions of daily...SeniorFull timeRemote work
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and... ...as spot, margin, futures, options, and perpetuals. As a Senior Staff Software Engineer in the C++ team, you will play a crucial role in shaping the...SeniorFull time
- ...exchange and the developer of OKX Wallet, giving millions of users... ...across Trading, Web3, Payment, and beyond — not just writing... ...role demands the rigor of an engineer, the strategic thinking of a... ...engineers, product managers, and senior leadership alike. Participate...SeniorFull timeContract workLive inShift work
- ...OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto... ..., OKX Wallet, OKLink and more. About The Team As a Rust Engineer , you will play a key role in shaping and advancing OKX’s next...SeniorFull time
- ...freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized... ..., OKLink and more. About the team: As a mobile software engineer, you will build and maintain a core OKX app with millions of daily...SeniorFull timeWork at office
- ...freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized... ...develops the core modules of the exchange, including the matching engine, real-time market data streaming, and market data analysis. It...SeniorFull time
- ...students. Job Requirements: PhD degree from a world leading university, preferably in a field related to Computer Science/Engineering, with at least 20 years’ experience in a research-intensive educational and research environment. Strong leadership in managing...
- ...prosper. We support a wide range of digital payments choices, making transactions secure,... ...potential. Title and Summary Lead Software Engineer (Real-Time Payments) Overview The... ...This role is ideal for an experienced senior engineer who: Leads day‑to‑day...Full timeWorldwide
- ...applications, from frontend UI to backend infrastructure. As a Senior Devops Engineer, you will be involved a number of technically challenging... ...to achieve our ultimate goal - Cryptocurrency in every wallet. Work Flexibility Adoption. Flexi-work hour and hybrid or...SeniorFull timeRemote workFree visa
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Engineer - Payment & Wallet. Be the first to apply!
- senior network engineer remote Singapore
- senior project manager contract Singapore
- senior mulesoft developer Singapore
- senior leadership Singapore
- senior principal cloud computing engineer Singapore
- senior vice president of operations Singapore
- senior net developer remote Singapore
- senior business analyst contract Singapore
- senior manager automotive Singapore
- senior full stack web developer Singapore
