Senior Software Engineer – Team Lead

Dev.Pro

. Develop and maintain React.js applications, portals, and embeddable widgets .

Posted 10/30/2026contractRemote • Brazil, Argentina, ColombiaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in developing and maintaining React.js applications and secure REST APIs using C# and .NET Core. Proficient in database management with PostgreSQL and MongoDB, as well as cloud services and infrastructure automation using AWS, Docker, and Kubernetes.

Highest-signal resume keywords

C#/.NET Core DevelopmentReact.js Application DevelopmentAWS Services IntegrationMicroservices ArchitectureCI/CD Automation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C#.NET CoreReact.jsJavaScriptTypeScriptPostgreSQLMongoDBMicroservicesREST APIsUnit Testing

Soft Skills

Technical LeadershipCollaborationProblem-Solving

Tools & Technologies

AWSDockerKubernetesGitHub ActionsJenkinsGitLab CITerraformPulumiSplunkDatadog

Industry Keywords

Financial ServicesEmbedded FinancePaymentsLendingBanking

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsDockerGrafanaJavaScriptJenkinsKubernetesMicroservicesMongoDBPostgresPythonReactSplunkTerraformTypeScript.NET

About the role

Key responsibilities & impact

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 and contribute to API/event-contract design, code reviews, architecture discussions, and documentation
Support infrastructure automation using CI/CD, Docker, Kubernetes, and infrastructure as code
Implement logging, metrics, tracing, and alerts; troubleshoot issues across application layers
Collaborate with QA and operations on testing, release readiness, and recovery procedures
Work on an orchestration platform for a global fintech company that enables embedded financial products

Requirements

What you’ll need

10+ years of experience developing and supporting production software
Strong C#/.NET Core skills, including REST APIs, dependency injection, async programming, testing, and secure coding
Hands-on experience with React.js, JavaScript/TypeScript, component architecture, state management, HTML, and CSS
Experience with PostgreSQL, MongoDB, or similar relational and document databases
Experience with microservices, API-first development, third-party integrations, and resilient distributed systems
Hands-on experience with AWS, Docker, and Kubernetes/EKS
Ability to write automated unit and integration tests and troubleshoot UI, API, data, and cloud issues
Experience with Git workflows and CI/CD tools such as GitHub Actions, Jenkins, or GitLab CI
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
Desirable: Experience with embeddable widgets, micro-frontends, white-label apps, or multi-tenant SaaS
Desirable: Experience with AWS Lambda, Step Functions, ECS batch, S3, KMS, certificate or secret management
Desirable: Exposure to Python services, data pipelines, and unittest
Desirable: Experience with Terraform/Pulumi and GitOps tools such as Argo CD
Desirable: Experience with Splunk, Datadog, Grafana, CloudWatch, distributed tracing, and incident support
Desirable: Background in financial services, payments, embedded finance, lending, or banking

Benefits

Comp & perks

Help shape a growing platform that enables a wide range of embedded financial products
Tackle complex engineering challenges across React.js, .NET, AWS, and partner integrations
Influence technical decisions, guide the team, and stay hands-on with development
Remote-first work arrangement
Work with a global team of IT professionals across 55+ countries on five continents