Full Stack Engineer

Techifide Ltd; Brasil; Presencial; BRL 300 000 - 520 000; Tempo integral

Resumo da oferta

Techifide Ltd is seeking an experienced Senior/Staff Frontend Engineer to own features across React/TypeScript, Python and Rust services. You will shape product UX and collaborate with ML and backend teams to deliver polished features in production.

You will work on designing API contracts, integrating AI agents, and ensuring scalable frontend architectures. This is a hands-on role requiring ownership and focus on data-driven, high-quality delivery.

Qualificações

• Strong React and TypeScript experience with complex component architecture.
• Experience integrating AI agents or similar AI services into production apps.
• Backend experience in Python or Rust is a plus and beneficial for collaboration.

Responsabilidades

• Own features from concept through production across React/TypeScript, Python and Rust.
• Integrate AI agents and ML services into real product workflows with simple UX.
• Contribute to Python and Rust services handling business logic and data exchange.
• Design and evolve API contracts with platform and backend engineers.
• Integrate third-party APIs considering auth, rate limits, retries and latency.
• Collaborate with PMs, designers, ML engineers and other engineers to define features.
• Write maintainable, well-tested code and participate in code reviews.

Conhecimentos

React

TypeScript

AI integration

Python

Rust

Ferramentas

React

TypeScript

Python

Rust

GitLab

Descrição da oferta de emprego

You'll work across a modern React and TypeScript application, Python and Rust services, external APIs, and an AI agent platform. The role has a strong front-end focus, but this isn't a position where you throw an API request over the wall and wait for someone else to deal with the rest.

You'll be expected to understand the complete journey of the data: how it reaches the application, how agents and services process it, how results are streamed back, and ultimately how those results become a fast and intuitive experience for the user.

You'll also work closely with machine learning engineers to turn sophisticated AI capabilities into practical product features people can actually use.

This is a hands‑on engineering role for someone who likes difficult product problems, takes ownership and cares about the quality of what reaches production.

What you'll be doing

• Own features from concept through production across React/TypeScript, Python and Rust.
• Integrate AI agents and machine learning services into real product workflows, turning complex underlying capabilities into simple user experiences.
• Contribute to Python and Rust services responsible for business logic, data exchange, agent orchestration and communication with the client application.
• Design and evolve API contracts alongside platform and backend engineers, making sure services provide the data and behaviour the application needs.
• Integrate third‑party platforms and APIs while accounting for authentication, rate limits, retries, latency and failures.
• Collaborate directly with product managers, designers, ML engineers and other software engineers to turn ideas into clearly defined features.
• Write maintainable, well‑tested code, contribute to code reviews and improve areas of the codebase that need attention.

What we're looking for

You've already worked at Senior or Staff level building sophisticated web applications used in production.

You should have:

• Strong React and TypeScript experience, including complex component architecture, state management and performance optimisation.
• Experience integrating LLMs, AI agents or similar AI services into production applications.
• An understanding of the realities of AI‑powered applications, including streaming responses, tool calls, unpredictable latency, errors and partial results.
• Experience integrating external APIs and designing around authentication, rate limiting, retries and service failures.
• Good knowledge of front‑end architecture and patterns for building complex, stateful applications.
• Production experience with at least one of our backend languages: Python or Rust.
• Experience using AI‑assisted development tools as part of your normal engineering workflow.
• The communication skills to work effectively across engineering, product, design and machine learning teams.

Most importantly, you should be comfortable joining an evolving product and codebase where not every problem has already been neatly defined.

Nice to have

Experience in any of these areas would be particularly useful:

• 2D or 3D graphics, CAD or geometry‑heavy applications.
• WebGL, WebGPU or Three.js.
• AWS infrastructure and managed services.
• Production observability, including logging, tracing and monitoring.
• CI/CD and GitLab pipelines.

The kind of engineer who will enjoy this role

You probably won't enjoy this position if you want to work exclusively on isolated front‑end tickets.

You probably will if you like understanding how the whole product works, are willing to move between React, APIs, backend services and AI systems, and enjoy taking responsibility for getting something from an idea to a polished feature in production.

The problems are technically challenging, the product is ambitious, and you'll have the opportunity to influence how both the application and its engineering architecture evolve.