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Haken Senior Backend Engineer (Golang) Tokyo | Global Fintech

Morgan McKinley Tokyo, Japan
Posted 3 days ago Contract ¥6000 - ¥7000 ph

Haken Senior Backend Engineer (Golang) Tokyo | Global Fintech

Morgan McKinley Tokyo, Japan
Join a leading global fintech infrastructure company as a Senior Backend Engineer (Golang) and help build the next generation of brokerage technology for the Japanese market. This role offers the opportunity to architect and scale mission-critical backend systems that support financial institutions and investment platforms while collaborating with world-class engineering teams across the globe.

Working at the intersection of Fintech, Golang, microservices, and cloud-native technologies, you will design scalable backend services, integrate with Japan's financial infrastructure, and translate local business and regulatory requirements into innovative technical solutions.
Key Responsibilities
  • Design and scale mission-critical backend systems tailored for Japan's brokerage and financial services market.
  • Develop and enhance backend applications using Go (Golang), gRPC microservices, and REST APIs.
  • Build secure and scalable integrations with Japanese banking systems, brokerage platforms, and financial market infrastructure.
  • Collaborate with global engineering teams to translate local regulatory and business requirements into technical specifications.
  • Work closely with Japanese regulators, vendors, and internal stakeholders to support compliant and reliable platform development.
  • Optimize backend architecture to improve scalability, performance, security, and system reliability.
  • Contribute to system design discussions, engineering best practices, and continuous platform improvements within a globally distributed team.
Required Skills and Qualifications Experience:
  • Strong proficiency in at least one statically typed programming language, such as Go (Golang), Rust, Java, or C++.
  • Proven experience designing and developing complex financial systems, brokerage platforms, or fintech applications.
  • Experience building scalable distributed systems and backend architectures.
  • Hands-on experience developing gRPC microservices, REST APIs, or cloud-native backend services.
  • Experience working independently within globally distributed engineering teams using asynchronous collaboration tools.
  • Strong computer science fundamentals, including software architecture, algorithms, and system design.
Soft Skills:
  • Excellent analytical and problem-solving skills.
  • Strong communication and collaboration abilities across multicultural engineering teams.
  • Self-motivated with the ability to work effectively in a remote and distributed environment.
  • Adaptable mindset with the ability to manage evolving technical and business requirements.
  • Strong stakeholder management skills when working with local partners, vendors, and regulatory bodies.
Language Requirements:
  • Japanese: Business level (JLPT N1 or equivalent preferred)
  • English: Business level
Preferred Skills & Qualifications
  • Production experience developing backend applications using Go (Golang).
  • Experience working within Japanese securities firms, wealth management platforms, or high-volume payment systems.
  • Hands-on experience integrating with Japan's banking infrastructure, financial market systems, or domestic investment platforms.
  • Strong understanding of Japan's fintech ecosystem and financial regulations.
  • Experience designing highly available cloud-native systems for mission-critical services.
About the Company
Our client is a global fintech pioneer delivering institutional-grade brokerage infrastructure across more than 40 countries, supporting over 9 million investment accounts worldwide. Backed by more than $320 million in funding, the company empowers financial institutions with developer-friendly APIs and cutting-edge technology. Its engineering culture emphasizes ownership, innovation, and collaboration, providing engineers with the opportunity to build products that shape the future of investing.
Why You'll Love Working Here
  • Help build next-generation fintech infrastructure used by millions of investors around the world.
  • Design and own large-scale backend systems supporting Japan's evolving financial services market.
  • Work with modern technologies including Go (Golang), gRPC, REST APIs, and cloud-native architectures.
  • Collaborate with an elite global engineering team across multiple countries and time zones.
  • Enjoy a flexible remote-first working environment with localized support during Japan business hours.
  • Join a rapidly growing fintech company backed by significant global investment and long-term growth opportunities.
Don't Miss Out - Apply Now!

Job ID  JN -062026-2004578
ABOUT COMPANY
Tokyo, Japan
HR & Recruitment
As a global professional services recruitment consultancy, Morgan McKinley connects specialist talent with leading employers across multiple industrie...
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