Navigate Change
Senior Python, Java Developer
Location
Brazil
Posted
5 days ago
Salary
0
Seniority
Senior
Job Description
Senior Python, Java Developer
CI&T
• Develop, test, and implement software solutions in Python and Java. • Collaborate with cross-functional teams to define, design, and deliver new features and products. • Maintain and improve the performance of existing applications. • Identify and fix bugs and performance issues. • Actively participate in code reviews and ensure the quality of produced code. • Document processes and results, contributing to knowledge retention within the team.
Job Requirements
- Proven experience in Python development (minimum of 3 years) — frameworks such as Django, Flask, or FastAPI
- Proven experience in Java development (minimum of 1 year) — microservices and containerization, APIs, Swagger, IAM integrations (OAuth, OpenID, SAML)
- Experience with relational databases (PostgreSQL, MySQL) and non-relational databases (MongoDB)
- Familiarity with version control tools (Git)
- Ability to write automated tests and experience with TDD/BDD
- Knowledge of RESTful APIs and integration with third-party services
- Experience with agile methodologies (Scrum, Kanban)
- Ability to solve complex problems and work independently
- Good communication and collaboration skills
- Advanced English
Benefits
- Health and dental insurance
- Meal and food allowance
- Childcare assistance
- Extended paternity leave
- Partnerships with gyms and health and wellness professionals through Wellhub (Gympass TotalPass)
- Profit sharing and results participation (PLR)
- Life insurance
- Continuous learning platform (CI&T University)
- Employee discount club
- Free online platform dedicated to physical, mental, and overall well-being
- Pregnancy and responsible parenting course
- Partnerships with online learning platforms
- Language learning platform
- And many more!
Related Guides
Related Job Pages
More Backend Engineer Jobs
• Build and operate backend systems that serve AI-powered insurance workflows in production. • Design and implement AI orchestration layers that connect models, APIs, workflows, and business logic. • Build inference pipelines for LLM-based and AI-assisted automation systems. • Optimize latency, throughput, and cost across AI services (caching, batching, streaming, routing). • Design stable service boundaries between backend systems, ML components, and product APIs. • Implement observability: logging, metrics, tracing, alerting, and incident response workflows. • Debug production issues across distributed AI systems and resolve root causes. • Collaborate closely with frontend, product, operations, and ML teams to ship end-to-end features. • Continuously improve system reliability, scalability, and performance.
Lead Go Developer, AdTech
Sigma Software GroupWe support enterprises, product houses, and startups with custom software solutions development and IT consulting.
• Design and implement core Back-End services for real-time bidding, optimization, and ad delivery workflows • Build custom bidding agents for real-time bid decisioning • Develop high-load, low-latency components supporting real-time auction and delivery mechanics • Implement proprietary pacing, bid-shading, and optimization logic to improve campaign efficiency • Design and integrate forecasting capabilities for impressions, reach, outcomes estimation, and campaign planning • Work with OpenRTB, JSON, protobuf, and other ad-tech protocols and data formats • Collaborate with product, engineering, data, and ad operations stakeholders to deliver scalable performance advertising capabilities
• Architecting an AI-first GTM ecosystem that bridges the gap between Sales, RevOps, Marketing, and Customer Success. • Design, code, and deploy custom AI integrations from scratch to connect our CRM, Sales Engagement platforms, and other technology stack components. • Build proprietary internal LLM-based tools to automate account and contact enrichment, outbound messaging for early and middle of the funnel prospects. • Develop agentic workflows that handle routine administrative tasks (e.g., CRM data, meeting summaries, and follow-up scheduling) across the revenue organization. • Partner with RevOps and Marketing Ops to audit the existing tech stack, identifying redundancies where AI can replace high-cost, low-utility third-party vendors. • Implement predictive modeling to identify high-intent pipelines and provide Sales with real-time 'Next Best Action' recommendations. • Ensure data integrity across all platforms, creating a 'single source of truth' that AI models can leverage for accurate forecasting. • Collaborate with Customer Success to build AI-driven retention loops and automated renewal triggers. • Consult with Marketing leadership on AI-driven content distribution and performance marketing automation to lower Customer Acquisition Cost (CAC). • Act as an internal consultant, training GTM teams on how to effectively 'prompt' and utilize deployed AI tools to maximize their individual output.
Application Advisor Intern
DayforceDayforce is a global HCM platform offering a comprehensive array of services encompassing payroll, HR, benefits, workforce management, talent, and analytics. With the mission of "m
Role Description As an Application Advisor Intern at Dayforce, you will support innovation projects within the Sales and Solution Advisory organization, focusing on: - Frontend UI/UX design - Customer-facing digital experiences - Conversational interfaces - AI-enabled workflow improvements You will help design, test, document, and improve tools that make information easier to access, understand, and use across customer engagement and sales advisory experiences. Qualifications - Currently pursuing an undergraduate degree in: - Human-Computer Interaction - UX Design - Product Design - Interaction Design - Computer Science - Software Engineering - Information Systems - Business Technology Management - Data Analytics - Business - Commerce - Related field - Strong interest in frontend UI/UX design and customer-facing digital experiences. - Understanding of UX design principles. - Experience creating wireframes, prototypes, journey maps, mockups, or design recommendations. - Familiarity with frontend concepts such as HTML, CSS, JavaScript, TypeScript, React, and APIs. - Strong communication, critical thinking, attention to detail, and collaboration skills. Requirements - Full-time availability of 37.5 – 40 hours weekly is required. - Ability to learn technical concepts related to AI-enabled applications. Benefits - Gain exposure to real-world competitive strategy in a fast-growing HCM technology company. - Develop practical skills in market intelligence, data analytics, and business storytelling. - Contribute to projects with a visible impact on company positioning. - Build skills for a career in software marketing, product development, sales development, or corporate strategy.



