Software Engineer – Senior

Tok&Stok

. Design, develop, and evolve high-performance backend APIs using Node.js/NestJS, PHP/Laravel, and .NET/C# .

Posted 9/18/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and developing high-performance backend APIs using Node.js, PHP, and .NET, while ensuring system robustness and scalability. Proficient in managing infrastructure as code and implementing CI/CD pipelines for efficient deployment and testing.

Highest-signal resume keywords

Node.js Application DevelopmentAWS Lambda and SQS ExperienceEvent-Driven Architecture DesignAutomated Testing and CI/CD ImplementationDatabase Optimization and Modeling

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

JavaScriptTypeScriptNode.jsNestJSPHPLaravelC#PostgreSQLMySQLOracle

Soft Skills

Team MentoringTechnical Leadership

Tools & Technologies

AWSTerraformDockerRabbitMQOpenTelemetryEKSECSGitHub ActionsJenkinsElectron

Industry Keywords

POS SystemsPayment ProcessingMicroservices ArchitectureEvent-Driven SystemsNFC-e Tax Document Issuance

Tech Stack

Tools & technologies

ASP.NETAWSDockerElasticSearchElectronJavaScriptJenkinsLaravelMongoDBMySQLNext.jsNode.jsOraclePHPPostgresPythonRabbitMQReactRedisSQLTerraformTypeScriptVue.js.NET

About the role

Key responsibilities & impact

Design, develop, and evolve high-performance backend APIs using Node.js/NestJS, PHP/Laravel, and .NET/C#
Ensure the robustness of POS, payment, billing, ordering, and extended-warranty systems
Contribute to the architecture and evolution of the POS application, dedicated BFF, and Electron desktop clients
Integrate checkout systems with EFT payment terminals and NFC-e tax document issuance providers
Work with partner and acquirer SDKs
Lead the modernization of legacy systems, migrating services to modern, scalable architectures
Design and implement event-driven architectures and asynchronous integrations using RabbitMQ and AWS SQS/SNS
Model and optimize Oracle and MySQL relational databases, MongoDB structures, and Redis caching strategies
Manage infrastructure as code with Terraform/Terragrunt on AWS
Orchestrate deployments on EKS, ECS, and Lambda
Implement end-to-end telemetry and tracing with OpenTelemetry
Guide technical and architectural decisions
Conduct code reviews and promote team mentoring and technical development
Ensure quality through automated testing and continuous CI/CD pipelines

Requirements

What you’ll need

Experience with JavaScript/TypeScript, Node.js, and NestJS on the backend
Experience with Next.js/React or Vue.js on the frontend
Strong knowledge of PostgreSQL, MySQL, or Oracle, with a focus on transactional modeling and optimization
Proven production experience with AWS SQS, EventBridge, or RabbitMQ
Hands-on experience with AWS Lambda, SQS, EventBridge, API Gateway, ECS, and EKS
Experience with Docker and Terraform
Strong knowledge of automated testing and CI/CD pipelines using GitHub Actions and/or Jenkins
Experience designing and consuming RESTful APIs in microservices architectures
Willingness to work with the .NET/Oracle ecosystem as needed
Practical use of AI assistants and coding agents in development and technical documentation
Bachelor’s degree or equivalent higher education
Nice to have: Oracle Forms, Reports, and PL/SQL
Nice to have: ASP.NET Core, Dapper, or EF Core
Nice to have: POS, checkout, payment methods, and tax document issuance business rules
Nice to have: Electron, payment terminals, and NFC-e
Nice to have: Redis, Elasticsearch, and MongoDB
Nice to have: OpenTelemetry
Nice to have: React/Vite, TanStack Query, Zustand, or Vue.js
Nice to have: Python, Poetry, and pytest
Nice to have: Terragrunt

Benefits

Comp & perks

Remote work
Full-time position
Opportunity to work with modern technologies and critical retail systems
Team mentoring and technical development