Developer(Financial Technology部※香港オフィス出社想定ポジション)

Job descriptions
【About the Company】
GRCS FinTech provides high-performance technology solutions for capital markets, leveraging over 20 years of expertise in leading global projects. Our offerings include robust exchange engines with continuous matching and auction features, along with order management systems (OMS) and execution management systems (EMS) that support DMA, policy-based order management, and algorithm integration We serve both exchanges and market participants, ensuring high-value solutions that reduce costs and accelerate market entry.

【About the Role】
We are looking for a Junior C# / .NET Developer to join our engineering team and support the development of reliable, high-performance applications for professional trading and financial technology systems.
This role is ideal for an early-career engineer who is eager to build strong technical foundations in .NET development while working on mission-critical systems.
You will work closely with senior engineers, product managers, QA, and domain experts to deliver scalable, maintainable, and user-focused solutions across desktop and backend applications.

【What you’ll do】

•  Assist in the design, development, testing, and maintenance of GUI frontend applications using C# and .NET.
• Support the development of professional frontend desktop and/or backend components for financial technology systems.
• Work with senior team members to translate business requirements into technical solutions.
• Develop and integrate APIs, real-time workflows, and supporting application services.
• Write clean, testable, and maintainable code following established engineering standards.
• Participate in debugging, troubleshooting, and performance tuning activities.
• Contribute to unit testing, automation efforts, and release processes.
• Take part in code reviews, team discussions, and knowledge-sharing sessions.
• Collaborate with cross-functional teams to deliver high-quality software on schedule.
• Continuously learn and improve through mentorship and hands-on project work.

Why join us

• Work on mission-critical systems used in high-performance trading environments.
• Opportunity to contribute to both established and evolving technology platforms.
• Collaborative engineering culture with code reviews, design discussions, and continuous　learning.
• Flexible working hours and a stable full-time opportunity.

Employment Type
Permanent Employee

Compensation

• Estimated Annual Salary: JPY 5,000,000 – 9,600,000
• Salary Range: Up to HKD 40,000 per month (negotiable based on experience and skills)
• Bonus: Performance-based bonus (not a fixed bonus)

Location
Hong Kong
Unit 307 Tuspark Workhub, 118 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong
※ Flexible remote work available

Working Hours
Flexible working hours system
※No core time
※Standard working hours: 8 hours per day

Holidays & Leave

• Two-day work week (Saturdays, Sundays & public holidays off)
• Year-end and New Year holidays
• Bereavement leave
• Paid annual leave (granted upon joining)
• Maternity and postnatal leave (with proven track record of employees taking and returning from leave)
• Paternity leave / Childbirth leave (with proven track record of employees taking and returning from leave)
• Childcare leave
• Nursing care leave

Benefits & Welfare

• Full transportation allowance
• Overtime allowance
• Remote work program
• Remote work allowance (JPY 3,000/month for communication expenses)
• Employee referral program
• Internal study sessions on the latest security trends
• Comprehensive social insurance coverage (employment, workers' compensation, health insurance, and pension)
• Professional certification support program (company covers examination and renewal fees, with incentives available)
• Shortened working hours program for permanent employees (6-hour workday option)
• Online company events
• Club activity subsidies (e.g., outdoor activities, billiards club)
• Influenza vaccination subsidy
• Employee Assistance Program (EAP)
• Corporate Defined Contribution Pension Plan (optional DC plan)

■応募資格：香港在住者（香港居住者）のみ

What you’ll bring

• Bachelor’s degree in Computer Science, Software Engineering, or a related discipline, or equivalent practical experience.
• 1–5 years of professional software development experience, or strong internship/project experience in .NET development.
• Foundation in C# / .NET and object-oriented programming.
• Basic understanding of software engineering principles, including:
  　o OOP
  　o Data structures and algorithms
  　o Debugging and testing
  　o Version control using Git
• Willingness to learn and grow in desktop and/or backend application development.
• Strong problem-solving ability, attention to detail, and a collaborative mindset.
• Good communication skills and eagerness to work in a team-oriented environment.
• Language: English, Cantonese, Mandarin
  ※We won’t consider candidates that change jobs frequently (e.g. within 2 years)

【Preferred Technical Experience】

• Familiarity with C# / .NET application development.
• Exposure to WPF, XAML, MVVM, or desktop UI development.
• Basic knowledge of RESTful APIs and application integration.
• Understanding of async/await, multithreading, or concurrency concepts is a plus.
• Familiarity with UI testing, unit testing, or automation tools is an advantage.
• Experience with DevExpress controls/components is a plus.

【Nice to Have】

• Internship, academic, or personal project experience related to financial systems or real-time applications.
• Exposure to WebSocket, Docker, or AWS is an advantage.
• Interest in capital markets, trading platforms, or financial technology.

■必須スキル

• コンピュータサイエンス、ソフトウェア工学、または関連分野の学士号、あるいは同等の実務経験
• 1～5年程度のソフトウェア開発実務経験、または .NET 開発における充実したインターンシップ／プロジェクト経験
• C# / .NET およびオブジェクト指向プログラミングの基礎知識
• 以下のソフトウェア工学の原則に関する基本的な理解（以下を含む）：
  　o オブジェクト指向プログラミング（OOP）
  　o データ構造とアルゴリズム
  　o デバッグとテスト
  　o Git を使用したバージョン管理
• デスクトップやバックエンドアプリケーション開発において、学び成長しようとする意欲
• 優れた問題解決能力、細部への注意力、そして協調的な姿勢
• 良好なコミュニケーション能力と、チームワークを重視する環境での業務への意欲
• 優れた問題解決能力、コミュニケーション能力、そして協調性を備えている方
• 英語と中国語（北京語・広東語）の両方でコミュニケーションが取れる方（ビジネス会話ができるレベル）

※転職頻度が高い方（例：2年以内）は選考対象外となります。

■歓迎スキル

• C# / .NET アプリケーション開発に精通している
• WPF、XAML、MVVM、またはデスクトップUI開発の実務経験
• RESTful APIおよびアプリケーション統合に関する基礎知識
• async/await、マルチスレッド、または並行処理の概念を理解していること
• UIテスト、ユニットテスト、または自動化ツールに精通していること
• DevExpressのコントロール／コンポーネントの使用経験

■あれば尚可

• 金融システムやリアルタイムアプリケーションに関連するインターンシップ、学業、または個人プロジェクトの経験
• WebSocket、Docker、またはAWSの経験
• 本市場、取引プラットフォーム、またはフィンテックへの関心

【選考プロセス】
書類選考⇒一次面接＋筆記試験（計2時間程度）⇒二次面接⇒内定
※すべて香港オフィスでの対面実施となります。
※面接は英語にて実施します。
募集人数：1名募集
転職頻度が高い方（例：2年以内）は選考対象外となります