Tech Lead .Net/React

Overview

Join us as a Senior Technical Lead Engineer at AORO, which is a digital gold platform built to power the next generation of transactions on Web3 infrastructure and financial rails. We're looking for a driven, capable lead that is up for the challenge of refining existing architecture and systems, and creating upcoming architecture to support products in the roadmap. You must have the grit and determination, but also be a hands-on engineer. You need to love to code, but also to see the bigger picture and most importantly, have integrity. You will be working alongside the CEO, CTO, and rest of the engineering team. Location: Remote, however, candidate must be located in commutable distance to Sao Paulo.

Note: The role description includes multiple engineering leadership and senior engineering opportunities across different teams and companies. The core emphasis remains on strong backend, API, data, and blockchain/web3 capabilities.

Responsibilities (Senior Technical Lead Engineer)

• Development in Python, architecting and refining microservices.
• Create GraphQL APIs.
• Orchestration and synchronization of messaging systems (e.g., Kafka).
• Payment integrations, web3 integrations.
• Maintain CI/CD pipelines to deliver holistic solutions.
• Engineer smart contracts and other blockchain technologies.
• Database architecture, design, and implementation.
• Craft, optimize, and manage APIs for seamless data exchange.
• Tackle system optimization, performance, privacy, and data encryption challenges.
• Champion iterative development and continuous enhancement.
• Stay at the forefront of trends in Cryptocurrencies, Web3, Blockchain technologies, Kafka, Event architecture, GraphQL, Apollo, Microservices, Systems, and API design.

Skills

• Advanced proficiency in synchronous systems, GraphQL, Python, Kafka, and Microservices architecture.
• Secure, performant database design and cryptography.
• Seamless integration with external messaging and payment platforms.
• Event-driven and synchronous systems experience.
• CI/CD pipeline implementation for automated deployment.
• API development for seamless data interaction.
• Automation, Git version control, and collaborative workflows.
• Kafka, Apollo, Node.js, Python, and SQL databases.

Requirements

• 10-15 years of Systems Engineering experience, specializing in Microservices, Systems Engineering, Database design, Event-driven architecture, GraphQL, PostgreSQL, CI/CD, Infrastructure, and API development.
• Led success in real-world, real-time high throughput systems with hundreds of thousands of users; secure, performant backend design.
• Master's or Bachelor's degree in Computer Science, Systems Engineering, or related field.
• Knowledge of web3/crypto from personal or professional industry experience.

Contract Details

Technical Lead Fullstack Java, AWS — Contract to hire long term contract. REMOTE. Pay rate: 70 - 90 per hour. Must have leadership skills and strong AWS experience. Financial services experience preferred.

Other Senior Engineering Roles

The description also references multiple additional roles across different teams and companies, including Senior Software Engineer and Lead Software Engineer positions with varying tech stacks. Each role contains its own responsibilities, qualifications, and working conditions. If you are applying, please align your application to the specific role and team you are targeting.

Senior Software Engineer – Avenue Code

Avenue Code is a leading software consultancy focused on end-to-end development for digital transformation. Roles include production-grade development with technologies such as Elixir, Ruby, React, TypeScript, GraphQL, Kafka, AWS/Lambda, PostgreSQL, and DynamoDB. Qualifications commonly include 3-5+ years of software engineering, experience with event-based architectures, and familiarity with modern tooling. This section also covers company culture and privacy statements.

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Senior Software Engineer – TCS / Tata Consultancy Services (Brazil)

Multiple senior roles with remote/Sao Paulo options, emphasizing Java/Spring, AWS, Kubernetes, microservices, and enterprise-scale systems. Includes extensive benefits, inclusion policies, and privacy statements.

What to Expect

• Professional development and ongoing skills evolution
• Opportunities to work outside Brazil
• Collaborative, diverse, and innovative environment

EEO and Privacy: The description includes standard privacy and inclusion statements consistent with corporate policy. Any candidate data shared will be kept confidential and processed for recruitment purposes as described by each company.

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