Senior .NET Developer – Financial Trading, Microservices & Secure Payment Systems

Job Summary

Synechron is seeking an experienced .NET Full-Stack Developer with a strong background in financial services and trading systems. In this role, you will be responsible for designing, developing, and maintaining high-performing, secure trading, risk management, and back-office applications. Collaborating closely with domain experts, quant teams, and infrastructure specialists, you will deliver scalable solutions that meet complex workflow, performance, and regulatory standards. Your contributions will support Synechron’s strategic goal of providing innovative financial technology solutions, enhancing operational efficiencies, and improving client satisfaction.

Software Requirements

Required:

• Extensive experience with ASP.NET Core, C#, and .NET Framework (7+ years)

• Front-end frameworks: Angular or React, with at least 3+ years of hands-on experience

• Development of REST APIs, microservices architecture, and WebSocket-based communication

• Relational database experience: SQL Server, T-SQL, and database schema design

• Version control expertise: Git or equivalent

• Experience designing and working within CI/CD pipelines for automated deployment

Preferred:

• Cloud platform experience: Azure and AWS

• Knowledge of FIX Protocol and market data feeds used in trading environments

• Experience with low-latency system architecture and real-time trading platform design

• Familiarity with NoSQL databases such as MongoDB or Cassandra

Overall Responsibilities

• Develop, customize, and optimize end-to-end scalable applications supporting trading, risk, and reporting functions

• Build robust backend systems leveraging ASP.NET Core, C#, and microservices to handle high transaction volumes

• Create interactive, responsive front-end interfaces using Angular or React frameworks

• Integrate with third-party APIs, market data feeds, and trading platforms, ensuring high security and low latency

• Collaborate with domain experts, traders, and infrastructure teams to gather requirements and deliver tailored solutions

• Implement and maintain security, compliance, and performance standards specific to financial services

• Conduct design and code reviews, and maintain comprehensive technical documentation

• Support deployment, testing, and troubleshooting across development, staging, and production environments

• Stay abreast of industry and technology trends to promote continuous improvement and innovation in platform architecture

Technical Skills (By Category)

Programming Languages (Essential):

• C# (.NET Core and .NET Framework), JavaScript

Preferred:

• TypeScript, Java, or other scripting languages for automation and integration

Databases / Data Management:

• SQL Server, T-SQL, database schema design, and query optimization

• Knowledge of market data systems and protocols

Cloud Technologies:

• Basic experience with Azure and AWS cloud environments for deployment and scaling

Frameworks and Libraries:

• ASP.NET Core, Angular, React

• REST APIs, WebSockets, microservices architecture

Development & Methodologies:

• Git, Jenkins, Azure DevOps or similar CI/CD tools

• Knowledge of automated testing frameworks such as xUnit, NUnit, Jasmine, or Karma

Security & Compliance:

• Data encryption, secure API development, adherence to PCI DSS, and other financial security best practices

Experience Requirements

• 7+ years of full-stack development experience, primarily in financial or trading applications

• Proven experience designing and supporting high-throughput, low-latency trading or risk management systems

• Strong understanding of financial workflows, market data feeds, and trading protocols (FIX, proprietary APIs)

• Experience working within highly regulated environments and ensuring compliance with industry standards

• Prior exposure to cloud deployment, scalable architecture, and security management in financial technology systems

Day-to-Day Activities

• Translate business requirements into technical designs and scalable solutions

• Develop, enhance, and test backend systems supporting trading, risk, and back-office operations

• Build and improve interactive, intuitive frontend applications using Angular or React

• Integrate external data feeds, third-party APIs, and trading platforms, ensuring security and performance standards

• Conduct code reviews, optimize performance, and troubleshoot production issues

• Collaborate with business, quant, and infrastructure teams in sprint planning and project reviews

• Document configurations, system architecture, and best practices

• Monitor system performance, security, and compliance, implementing improvements proactively

• Stay updated on industry trends and technological evolutions in trading and financial systems

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

• 7+ years of hands-on experience in full-stack development within financial or trading environments

• Experience deploying high-performance, secure financial applications

• Relevant certifications (e.g., Microsoft Certified: Azure Developer, Certified Trading System Developer) are a plus

• Demonstrable proficiency in secure coding, regulatory compliance, and performance tuning

Professional Competencies

• Strong analytical and problem-solving skills for complex financial workflows

• Ability to work independently and collaboratively in dynamic environments

• Excellent communication skills for liaising with technical and non-technical stakeholders

• Adaptability to evolving technological and regulatory landscapes

• Attention to detail with a focus on security, compliance, and quality

• Results-oriented with excellent time and project management capabilities

S​YNECHRON’S DIVERSITY & INCLUSION STATEMENT
 

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and is an affirmative action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.

Candidate Application Notice