Senior Back-end Developer, AI

Simples Dental

. Build and evolve AI agents that interact with people and perform tasks within the product .

Posted 10/6/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong back-end development skills in Java, Python, or TypeScript, with experience in building and integrating AI agents and REST APIs. Proficient in unit testing, database management, and utilizing AI tools for feature development.

Highest-signal resume keywords

Back-End Development in Java, Python, or TypeScriptREST API DevelopmentExperience with Spring Boot, FastAPI, or NestJSKnowledge of PostgreSQL, Oracle, or MySQLAI Agent Frameworks such as Spring AI or LangChain

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaPythonTypeScriptREST API DevelopmentSpring BootFastAPIPostgreSQLUnit TestingClean CodeDesign Patterns

Soft Skills

Strong Communication SkillsCross-Functional Team Collaboration

Tools & Technologies

GitClaude CodeCodexDockerKubernetes

Industry Keywords

AI AgentsModel Context Protocol (MCP)NoSQL DatabasesResponse Quality EvaluationContext Engineering

Tech Stack

Tools & technologies

DockerHibernateJavaKubernetesMongoDBMySQLNoSQLOraclePostgresPythonRedisSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Build and evolve AI agents that interact with people and perform tasks within the product
Create integrations that connect agents to the system, such as tools and MCP servers, to securely query and update data
Ensure that agent responses are accurate and faithful to the system’s data
Measure response quality and improve prompts, context, and workflows based on the results
Keep agents stable in the face of failures and limitations from AI model providers
Write unit and integration tests
Participate in code reviews and the team’s technical decisions
Contribute to sprint cycles and follow deliveries through to production

Requirements

What you’ll need

Strong back-end knowledge in Java, Python, or TypeScript, with a willingness to work with Java
Experience developing REST APIs, including versioning
Experience with back-end frameworks such as Spring Boot, FastAPI, or NestJS
Knowledge of relational databases (PostgreSQL, Oracle, or MySQL) and ORM usage, such as JPA/Hibernate
Experience with unit testing
Knowledge of Git
Knowledge of Clean Code and Design Patterns
Practical use of AI tools in day-to-day development (Claude Code, Codex, or similar)
Hands-on experience building features with AI models (LLMs), including calling model APIs, using tools (tool/function calling), and handling model responses
Knowledge of an AI agent framework such as Spring AI, LangChain, OpenAI Agents SDK, or similar
Strong communication skills and the ability to work effectively with cross-functional teams in a dynamic environment with fast-paced delivery
Nice to have: production experience with agents or AI features integrated into systems; context engineering, prompts, conversation memory, and RAG; response quality evaluation and agent observability; Model Context Protocol (MCP); NoSQL databases (Redis, MongoDB); Docker, Docker Compose, and Kubernetes

Benefits

Comp & perks

BRL 1,000 meal and food allowance | iFood card — no discount during vacation
BRL 150 home office allowance
Wellz — mental health/psychotherapy | At no cost to employees
Gympass — physical health/gyms | Available to dependents
Guapeco — health plan for your pet
English classes | At no cost to employees
Unimed health insurance | With copayment
Coworking day-pass reimbursement | Available in all Brazilian states
Extended parental leave
Baby gift basket for expecting parents
Partnership with Farmasesi | Santa Catarina only
Partnership with Educação Sesi | Santa Catarina only
Birthday day off
Laptop and monitor shipped to your home
BRL 2,000 voucher to purchase any additional equipment you need
Remote work
Team members from across Brazil, further strengthening our culture of diversity