Senior Software Engineer / Team Lead - Fintech Platform

About the role

Dev.Pro, a US-based remote-first software development company working with independent contractors worldwide, invites a Senior Full-Stack Software Engineer to join its team and work on an orchestration platform for a leading global fintech company. The platform lets business partners integrate once and offer a growing range of embedded financial products to their clients. You will develop and maintain React.js applications, embeddable widgets and .NET services, contribute to AWS-based solutions and support secure, reliable, production-ready software.

Key responsibilities

• Develop and maintain React.js applications, portals and embeddable widgets
• Build secure REST APIs and microservices using C# and .NET Core
• Implement business workflows and integrations with finance providers, partners, enterprise APIs, webhooks, file exchanges and AWS services
• Design and maintain PostgreSQL and MongoDB schemas, queries, migrations and data-access patterns
• Contribute to AWS workloads using EKS, Lambda, containers and Step Functions or equivalent orchestration
• Write unit, component, integration, contract and end-to-end tests
• Build reusable UI components and improve accessibility, performance and maintainability
• Guide engineers, contribute to API/event-contract design, code reviews, architecture discussions and documentation
• Support infrastructure automation with CI/CD, Docker, Kubernetes and infrastructure as code
• Implement logging, metrics, tracing and alerts, and troubleshoot issues across application layers
• Collaborate with QA and operations on testing, release readiness and recovery procedures

Required profile

• 10+ years of experience developing and supporting production software
• Ability to write automated unit and integration tests and troubleshoot UI, API, data and cloud issues
• Ability to translate requirements into maintainable, well-documented solutions
• Experience providing technical leadership and guidance to engineering teams
• Valid U.S. visa and ability to travel to the U.S. for onboarding and knowledge transfer

Required skills

• C#/.NET Core, including REST APIs, dependency injection, async programming, testing and secure coding
• React.js, JavaScript/TypeScript, component architecture, state management, HTML and CSS
• PostgreSQL, MongoDB or similar relational and document databases
• Microservices, API-first development, third-party integrations and resilient distributed systems
• AWS, Docker and Kubernetes/EKS
• Git workflows and CI/CD tools such as GitHub Actions, Jenkins or GitLab CI

Desirable: embeddable widgets, micro-frontends, white-label apps or multi-tenant SaaS; AWS Lambda, Step Functions, ECS batch, S3, KMS, certificate or secret management; Python services, data pipelines and unittest; Terraform/Pulumi and GitOps tools (Argo CD); Splunk, Datadog, Grafana, CloudWatch, distributed tracing and incident support; background in financial services, payments, embedded finance, lending or banking.

To apply, submit a CV in English, then attend an introductory call with a recruiter, followed by an interview and signing of the contract.