Senior Full Stack Developer (.NET Core + React)

Papigen; Washington (District of Columbia); On-site; USD 110,000 - 150,000; Full time

Job summary

Papigen is a fast-growing global technology services company delivering innovative digital solutions through deep industry experience and cutting-edge expertise. We specialize in technology transformation, enterprise modernization, and dynamic areas like Cloud, Big Data, Java, React, DevOps, and more.

The Developer will be responsible for end-to-end software engineering activities in agile iterations, aligned with SAFe principles, including discovery, design, integration, testing, deployment

Qualifications

• 8+ years of professional software engineering experience delivering enterprise solutions in agile teams.
• Backend: .NET Core / .NET 6 — strong experience building RESTful APIs, dependency injection, middleware, and performance tuning.
• Frontend: React.js — component-driven design, state management (Redux or equivalent), and responsive UI development
• Azure platform experience — working knowledge of App Services, Azure Functions, Azure SQL, Key Vault, and secure configuration practices
• Integration skills — experience designing and implementing REST APIs, message-based integrations (e.g., Azure Service Bus, Event Grid), and handling data protection/PII
• DevOps & tooling — proficiency with Git, Azure DevOps or GitHub Actions, CI/CD pipelines, and automated unit/integration testing (e.g., xUnit, Jest)
• Strong analytical and problem-solving skills, with the ability to break down complex requirements and deliver pragmatic solutions
• Clear stakeholder communication and collaboration skills; experience working with distributed teams

Responsibilities

• Discovery, solution design, and implementation
• Integration, testing, and documentation
• Deployment support and knowledge transfer
• Delivery will be executed in agile iterations, with priorities managed via Treasury backlogs
• SAFe alignment including PI Planning, Iteration Planning, System Demos, and Inspect & Adapt events

Skills

Backend .NET

React.js

Azure

REST APIs

DevOps

CI/CD

Git

Testing

Tools

GitHub Actions

Azure DevOps

xUnit

Jest

Job description

About Company

Papigen is a fast-growing global technology services company, delivering innovative digital solutions through deep industry experience and cutting-edge expertise. We specialize in technology transformation, enterprise modernization, and dynamic areas like Cloud, Big Data, Java, React, DevOps, and more. Our client-centric approach combines consulting, engineering, and data science to help businesses evolve and scale efficiently.

Scope of Work

The Developer will be responsible for end-to-end software engineering activities including:

• Discovery, solution design, and implementation
• Integration, testing, and documentation
• Deployment support and knowledge transfer

Delivery will be executed in agile iterations, with priorities managed via Treasury backlogs and coordinated across related projects such as:

• Pipeline & Monitoring
• Missed Repayments / Client Default Tracking
• CRM / Dynamics process automation

The Developer will work in alignment with SAFe® (Scaled Agile Framework) principles, participating in PI Planning, Iteration Planning, System Demos, and Inspect & Adapt events, ensuring deliverables meet agile governance, security, and quality standards.

Qualifications

Required Qualifications

• 8 years of professional software engineering experience delivering enterprise solutions in agile teams
• Backend: .NET Core / .NET 6 — strong experience building RESTful APIs, dependency injection, middleware, and performance tuning
• Frontend: React.js — component-driven design, state management (Redux or equivalent), and responsive UI development
• Azure platform experience — working knowledge of App Services, Azure Functions, Azure SQL, Key Vault, and secure configuration practices
• Integration skills — experience designing and implementing REST APIs, message-based integrations (e.g., Azure Service Bus, Event Grid), and handling data protection/PII
• DevOps & tooling — proficiency with Git, Azure DevOps or GitHub Actions, CI/CD pipelines, and automated unit/integration testing (e.g., xUnit, Jest)
• Strong analytical and problem-solving skills, with the ability to break down complex requirements and deliver pragmatic solutions
• Clear stakeholder communication and collaboration skills; experience working with distributed teams

Preferred Qualifications

• Microsoft Dynamics 365 / Power Platform experience — familiarity with model-driven apps, Power Automate flows, customizations, and solution packaging
• Experience with cloud messaging/event architectures such as Kafka or advanced Azure Event Grid scenarios
• Knowledge of application security best practices, threat modelling, and secure coding standards
• Previous exposure to finance or payments domain projects (e.g., repayments, credit lifecycle)
• Certification(s) such as Microsoft Certified: Azure Developer or similar
• Experience with observability and monitoring tools (Application Insights, Prometheus, Grafana)

Skills: javascript,react.js,full stack development,.net core,react,.net