Senior React Native Developer at ciandt | Brazil

At ciandt, we are pioneers in technology transformation, merging human expertise with cutting-edge AI to deliver scalable tech solutions.With a diverse team of over 8,000 CI&T professionals and partnerships with more than 1,000 clients over the past 30 years, we have made Artificial Intelligence a core part of our operations.We are looking for an experienced…

About TelnyxAt Telnyx, we are not just envisioning the future of global connectivity; we are actively creating it. By designing and enhancing the capabilities of a private, global, multi-cloud IP network and delivering hyperlocal edge technology via user-friendly APIs, we are pioneering a new age of seamless interconnection among individuals, devices, and applications.Our mission is driven by the ambition to revolutionize outdated systems, automate processes, and tackle real-world challenges with innovative connectivity solutions. Our financial stability and profitability enable us to invest in groundbreaking technologies while nurturing a culture of continuous learning and development for our team.We envision a world where unrestricted connectivity fosters boundless innovation. By joining our team, you will help lay the groundwork for this interconnected future. We are currently on the lookout for enthusiastic individuals eager to contribute to a game-changing organization while advancing their own skills and careers.About YouWe seek individuals with a robust background or keen interest in developing successful products or systems; you should be adept at managing multiple components, possess exceptional attention to detail, and be open to learning new technologies and systems.The OpportunityYou will collaborate with backend engineers across various teams within Telnyx, making impactful decisions that shape the company’s direction. You will have the opportunity to work alongside fellow engineers to develop exceptional features that span multiple system components, while also engaging with our business, sales, and operations teams to understand and resolve user challenges.

Salary Range: The monthly salary for this position ranges from $1,500 to $2,700 (Gross in USD).About Sezzle:Sezzle is dedicated to financially empowering the next generation by innovating the shopping experience. We are transforming the payment process, integrating state-of-the-art technology with effortless, interest-free installment plans that enhance the accessibility of shopping. At Sezzle, we are not merely changing payments; we are reshaping how individuals discover, engage with, and acquire their favorite products, positively impacting merchant sales through improved conversion rates and elevated order values. As we continue to pave the way in the fintech and retail sectors, we are assembling a vibrant, innovative team that is committed to crafting a unique shopping experience that transcends traditional transactions. If you're eager to challenge the status quo in technology and provide an impactful experience for consumers and merchants, consider joining us at Sezzle and contribute to the future of shopping!About the Role:We are on the lookout for a highly skilled and enthusiastic Junior Software Engineer who combines a strong technical acumen with excellent interpersonal skills. This role offers a thrilling opportunity to flourish in a fast-paced, dynamic environment within our rapidly expanding team, providing numerous opportunities for career growth. As a Junior Software Engineer, you'll play a key role in the design, development, and implementation of software solutions. Your responsibilities will encompass coding, development, and documentation of functionalities. You will be tasked with creating high-quality, innovative, and fully functioning software that adheres to coding standards and technical specifications.

Join Our Team at ElevenLabsAt ElevenLabs, we are at the forefront of AI innovation, revolutionizing the way technology interacts with users. Since our inception in January 2023, we have introduced the world’s first human-like AI voice model and are now powering millions of users and thousands of businesses, including industry leaders like Deutsche Telekom and Meta. Our impressive funding of $781 million, backed by renowned investors such as Andreessen Horowitz, ICONIQ Growth, and Sequoia, has propelled our valuation to $11 billion.Our product suite has grown to encompass three key platforms:ElevenAgents: Delivering intelligent customer experiences through scalable voice and chat agents.ElevenCreative: Empowering creators to produce and edit audio-visual content across 70+ languages.ElevenAPI: Providing developers access to our cutting-edge AI audio models.We thrive on creativity and commitment, driven by a diverse team of researchers, engineers, and innovators. If you’re passionate about making a meaningful impact through your work, we’d love to hear from you.

About madecardAt madecard, we are dedicated to empowering homeowners by simplifying their financial journey. Our flagship product, Made Card, is a unique credit card tailored for homeowners, offering unparalleled rewards on mortgage payments, home improvements, essential utilities, and everyday purchases. Each transaction enhances a personalized home management platform, enabling users to oversee their home systems and appliances, proactively manage maintenance, and receive timely assistance—whether through AI-driven insights or professional services. By integrating financial solutions, valuable data, and trusted experts, we provide homeowners with greater control, substantial savings, and the precious gift of time to enjoy their homes.We collaborate with leading national partners in the homeownership sector, from mortgage lenders to home service providers, embedding madecard into vital moments of the homeowner experience. These alliances enable us to reach millions of households nationwide, delivering significant benefits to homeowners.Supported by esteemed investors such as Village Global, Jump Capital, Recharge Capital, and Soma Capital, our leadership team boasts extensive experience in fintech, mortgage, and credit sectors from companies like Ramp, Bain Capital, JP Morgan Chase, American Express, and Morgan Stanley. We are on a mission to create a financial and engagement platform for the next generation of homeowners—one that places the homeowner at its core and redefines the essence of feeling at home.About the RoleWe are seeking a talented Senior Frontend Engineer to spearhead the development and scaling of our core user-facing experiences on both web and mobile platforms. In this role, you will take ownership of significant features from inception to deployment, mentor junior engineers, and help establish best practices within our frontend development team. This position is perfect for a hands-on engineer ready to embrace a technical leadership role.What You’ll DoFeature Ownership: Lead the design, development, and implementation of core features across mobile (Flutter) and web (React/Next.js).Collaboration: Partner closely with product managers, designers, and backend engineers to create intuitive, high-quality user experiences.Architecture & Standards: Play a key role in making frontend architectural decisions, establishing coding standards, and building reusable component libraries.Performance & Quality: Ensure applications are high-performing, accessible, and reliable as we scale.Mentorship: Provide guidance to junior engineers through code reviews and sharing best practices.

About Us At Nubank, we are revolutionizing the financial landscape in Latin America, serving over 122 million customers across Brazil, Mexico, and Colombia. Our mission is to simplify financial services and empower individuals, marking just the beginning of our vibrant journey ahead. As a publicly traded company on the New York Stock Exchange (NYSE: NU), we harness advanced technology, data intelligence, and a streamlined operational model to provide financial products that are straightforward, accessible, and user-centric. Our innovative approach has earned us accolades from prestigious rankings, including Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. To learn more about our dynamic culture, visit our institutional page here. Engineering at Nubank We are committed to cutting-edge software development practices, utilizing a diverse array of technologies. We welcome candidates with varying levels of familiarity with these tools, as we believe in fostering growth and learning within our team. Develop horizontally scalable microservices primarily in Clojure, leveraging Finagle and employing functional programming techniques and hexagonal architecture. Implement high-throughput jobs and inter-service communication utilizing Kafka. Engage in Continuous Integration and Deployment within AWS. Utilize Datomic and DynamoDB for data storage solutions. Monitor and ensure observability with Prometheus. Maximize operations using Kubernetes. We pride ourselves on being a process-light organization that values human interaction and fosters small, independent teams that operate like startups within our larger framework. Our focus is on optimizing execution and minimizing bottlenecks.

Join our expanding team at Precision Medicine Group as we enhance our capabilities across Latin America. We are seeking a dedicated Senior Clinical Research Associate to lead critical research studies in Brazil.As a Senior CRA, you will bring extensive experience to handle complex assignments, ensuring the smooth execution of clinical trials. Your responsibilities will include overseeing start-up and study implementation activities, conducting on-site monitoring of clinical research studies, and managing ongoing site operations. You will play a vital role in supporting Clinical Trial Managers and Project Managers, while also mentoring junior staff members to foster their professional development.

What We Expect From You:Be proactive in analyzing and understanding the impacts and real needs behind your deliveries.Take ownership of what you produce and deliver.Believe in achieving better results through teamwork.Communicate openly, participating in healthy debates and bringing ideas that contribute to both your success and that of the team.Understand Products & Businesses. Our main goal is to deliver value, going beyond just creating beautiful code.Be versatile: Understand how all pieces connect (front-end, back-end, database, network layers, etc.) and how this impacts the performance of your code/application.Be capable of evaluating and learning about new technologies and tools.Expected Profile:Discipline and organization are essential.Eager for knowledge.Provide constructive criticism regarding the tools used to improve development.Research in your spare time, bringing innovations that can be effectively applied to projects.Have a critical mindset.Engage with the team for sustainable growth.

Sezzle is on a mission to empower the next generation financially. We are transforming the shopping experience by integrating innovative technology with seamless, interest-free installment plans, making shopping both smarter and more accessible. We are not just redefining payments; we are reshaping how consumers discover, engage with, and buy the products they love, while driving significant impacts on merchant sales through enhanced conversions and increased order values. As we continue our journey in fintech and retail, we are assembling a forward-thinking, dynamic team that is passionate about creating a unique shopping experience. If you are eager to push technological boundaries and deliver transformative experiences for consumers and merchants, we invite you to join us at Sezzle and help us shape the future of shopping!About the Role:We are looking for a skilled and driven Senior Software Engineer with a strong background in accounting and finance. This role presents an exceptional opportunity to thrive in a vibrant, fast-paced environment within a rapidly expanding team, offering numerous prospects for leadership and innovation.This position is ideal for individuals who began their careers in accounting or finance and have transitioned into software engineering. We seek professionals eager to leverage their domain expertise to design and scale technical solutions that address complex financial challenges in fintech.As a Senior Software Engineer at Sezzle, you will be responsible for designing, developing, and optimizing high-impact systems that support our financial reporting, reconciliation, and automation workflows. You will collaborate closely with cross-functional teams, including Accounting and Finance, to ensure data integrity, streamline financial processes, and create robust, auditable systems that meet enterprise-grade standards.Your responsibilities will extend beyond development. You will mentor fellow engineers, influence technical direction, and demonstrate a strong sense of ownership in every project you undertake. You should be capable of producing high-quality, innovative, and fully functional software in accordance with coding standards, technical design specifications, and regulatory best practices.

About UsConstructor is pioneering the future of search and discovery in ecommerce. Our advanced platform is tailored to optimize key performance metrics, including revenue, conversion rates, and profitability. We have developed an innovative search engine in-house, leveraging transformer models and generative large language models (LLMs), which powers everything from search functionalities and recommendations to smart shopping agents. As a testament to our engineering prowess, our proprietary engine leads the market and has consistently outperformed competitors in A/B testing.Designed for extreme scalability, our engine handles over 1 billion queries daily across 150 languages and in approximately 100 countries. Our technology is trusted by some of the largest ecommerce leaders, including Sephora, Under Armour, and Petco.We are a dedicated team that thrives on solving challenges and enhancing the experiences of both our customers and colleagues. We uphold values of empathy, openness, curiosity, and continuous improvement, driven by metrics that truly matter. We believe in empowering every individual within our organization to excel in their roles, leading to remarkable outcomes.Founded in 2019 by Eli Finkelshteyn and Dan McCormick, Constructor operates from the United States and is committed to redefining ecommerce experiences.About the PositionAs a JavaScript Integration Engineer on our Customer Data Integrations team, you will play a crucial role in enhancing the ecommerce experience for millions of shoppers. You will develop monitoring tools to ensure seamless and high-quality integrations with the Constructor platform. Your responsibilities will include:Serving as a technical consultant to customers during their onboarding and integration journey, providing support through calls and collaborative efforts.Creating and maintaining internal tools that enhance visibility into customer integrations, including dashboards and systems that monitor data quality and integration performance.Advancing our event tracking capabilities to guarantee reliable and scalable data collection that fuels our AI algorithms.Improving documentation, training materials, and developer resources for both customers and internal teams.Assisting customers asynchronously by identifying and resolving issues, reviewing implementations, and ensuring data integrity while proactively monitoring integration health.Collaborating with integration-focused teams to identify recurring integration challenges and devise scalable solutions.Partnering with Product, Customer Success, and other engineering teams to shape the future landscape of customer integrations.How We WorkFully remote - work from any location.Bi-weekly sprints and retrospectives, along with daily stand-ups, fostering agile processes that prioritize rapid collaboration and innovation.

Role overview Jobgether seeks a Senior Backend Developer with advanced Node.js skills to join its engineering team in Brazil. This role centers on building and maintaining backend systems that power digital financial products used by a global audience. The work involves supporting platforms at scale and ensuring reliable performance for users worldwide. What you will do Design and implement secure, scalable backend services with Node.js Shape and refine the core architecture for digital financial platforms Optimize API performance and strengthen infrastructure resilience Contribute to new product development and influence technical strategy Tackle complex challenges involving real-time systems, microservices, and distributed applications Collaborate with engineers across regions in a remote-first setting Take ownership of projects and help guide platform direction Requirements Extensive experience as a backend developer, with deep Node.js expertise Proven ability to build secure, highly available, and scalable systems Comfortable addressing technical problems in evolving, international contexts Strong communication skills and experience working in distributed teams Work culture Remote-first approach with flexibility and autonomy Engineering team collaborates across multiple regions Chance to contribute to projects that have a global impact

Location: BrazilJob Mode: Full-timeWork Mode: Work from home Role overview Encora is looking for a Senior Go and Ruby Developer based in Brazil. This position focuses on designing, building, and maintaining software solutions for a cybersecurity platform. Collaboration across teams is central to the role, as is translating business needs into scalable technical solutions. Senior developers in this position guide technical projects, support junior team members, and help improve development practices. What you will do Develop and deploy cloud-native backend systems using Go and Ruby to support essential cybersecurity services. Lead the full software delivery process, including architecture, technical design, implementation, testing, deployment, and ongoing production support. Design and optimize distributed microservices on Google Cloud Platform, focusing on reliability, observability, and performance. Mentor engineers, participate in architecture discussions and code reviews, and promote best practices, automation, and effective software development lifecycle processes.

At CI&T, we are leaders in technological transformation, combining human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is not just our focus; it's our reality.Important: If you reside in the Metropolitan Region of Campinas, you will be required to be present at our offices in the city, in accordance with the current attendance policy.We are searching for a talented COBOL/Mainframe Developer with substantial experience in large-scale environments and practical knowledge of the traditional mainframe technology stack, particularly within banking environments. We desire an individual who demonstrates technical excellence, organizational skills, and effective communication within agile teams.Key Responsibilities:Develop, troubleshoot, and maintain legacy systems in a Mainframe environment;Work with COBOL, JCL, and sequential file manipulation;Utilize SQL and DB2/HPU for data handling and queries;Operate and monitor scheduling routines using tools like CONTROL-M and IWS;Engage with various utilities (HPU, SORT, PLAN, among others);Interact with specific systems and tools in the environment such as HexaVision, TSO, CDES;Actively participate in ceremonies and processes within agile methodologies (Scrum, Kanban, etc.).Required Qualifications:A minimum of 2 years of hands-on experience with:COBOL;JCL;Mainframe utilities (HPU, SORT, PLAN...);Sequential files;DB2 (via HPU) and SQL language;CONTROL-M and/or IWS;Environment (HexaVision, TSO, CDES, etc.);Experience working in agile teams.Preferred Qualifications:Knowledge of VSAM;Experience with ADABAS/Natural.This position requires availability for travel to the Osasco or Curitiba regions twice a week.

Join Space Inch as we expand! After a series of successful additions to our team, we are on the lookout for a talented Senior Full-stack Engineer to enhance one of our most successful, long-standing projects.You will collaborate closely with an established engineering team at Space Inch while also working in partnership with our client's team—a leading global FinTech corporation specializing in investment management, with multiple long-term initiatives in progress.If you are an experienced engineer with extensive Vue.js skills and a robust interest or background in Python, we would love to connect with you! Your passion for delivering high-quality, sophisticated applications will be key to your success in this role.

At Playlist, we believe that the most enriching moments in life occur when individuals disconnect from screens and engage in movement, connection, exploration, and play. We are on a mission to create the ultimate platform for intentional living, connecting people with transformative experiences in fitness, wellness, and beyond. With renowned brands like Mindbody and ClassPass, Playlist empowers both businesses and individuals, making it easy for aspirations to turn into reality. Join us in redefining the role of technology to nurture meaningful, real-world connections.ClassPass provides access to a multitude of fitness and wellness experiences around the globe, aiding individuals in leading active and balanced lives. Our platform simplifies the process of discovering and enjoying activities, whether it's fitness classes, self-care sessions, nutritious meals, or exciting new adventures. Join us in cultivating healthier and more vibrant communities worldwide.Your RoleAs our Marketing CRO Developer, you will be at the forefront of reimagining how technology can enhance real-world experiences. Your creativity will drive our digital experimentation, revolutionizing the way we engage with our audience through sophisticated web optimization.Design and implement innovative web experiments that foster significant user engagement, utilizing JavaScript, HTML, and CSS to craft seamless and impactful digital experiences.Create captivating landing pages that convey our narrative and convert interest into action, supporting marketing initiatives with both technical precision and creative ingenuity.Conduct thorough quality assurance to guarantee our digital interfaces provide a smooth and intuitive user journey across all devices and browsers.Utilize Google Analytics and SQL to extract valuable insights, translating data into strategic opportunities for optimization.Work collaboratively with Product, Design, and Engineering teams to expand the horizons of our marketing technology ecosystem.Develop and run A/B tests to uncover subtle user behaviors and preferences.Prototype and implement web features that enhance our digital landscape and align with our goal of connecting individuals to extraordinary real-world experiences.Continuously improve our web performance, transforming technical expertise into user-friendly solutions.

jobgether seeks a Web Developer with proven Shopify Plus experience to join the team in Brazil. The main focus is building and refining e-commerce sites on Shopify Plus, always with an eye on user experience and business growth. Collaboration with other teams is a regular part of the work. Main responsibilities Design and develop e-commerce websites using Shopify Plus Optimize site performance and user experience Work closely with cross-functional teams to deliver effective solutions Support projects that drive sales and improve site usability Location This position is based in Brazil.

Join our expanding team at pfm as a Senior Clinical Research Associate and play a crucial role in advancing clinical studies across Brazil. This remote position allows you to leverage your extensive experience in managing complex clinical trials while ensuring adherence to the highest standards of patient safety and data integrity.As a Senior CRA, you will be responsible for overseeing the start-up and implementation of clinical studies, conducting on-site monitoring, and providing ongoing site management. You will collaborate closely with Clinical Trial Managers and Project Managers to support trial activities, with an emphasis on mentoring and training junior staff members.

At CI&T, we are pioneers in technological transformation, merging human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters globally, we have partnered with more than 1,000 clients throughout our 30-year journey. Artificial Intelligence is our reality.Important: If you reside in the Metropolitan Region of Campinas, your presence in our offices in the city will be mandatory, according to our current attendance policy.Hello, I am Wal from CI&T! I am part of the Talent Attraction team and I am looking for professionals located in Brazil for the position of Mid Level/Senior Data Developer (Python/AWS), who will work on a financial sector project. You will be responsible for the development and enhancement of data ingestion pipelines and applications, working with serverless and containerized architectures within the AWS ecosystem. The role requires technical autonomy, a strong sense of quality, and effective communication with multidisciplinary teams.Responsibilities:Develop and enhance data ingestion applications using AWS (Glue, Lambda, ECS, SNS, SQS, Kafka)Participate in technical inceptions and refinementsWrite and maintain automated tests focusing on the test pyramid

Are you a passionate Frontend Engineer looking to make an impact? Join ThriveCart, where we empower entrepreneurs to build successful online businesses. In this remote role, you will collaborate with a dynamic team to design and implement visually stunning and highly functional web applications. If you thrive in a fast-paced environment and are excited about creating exceptional user experiences, we want to hear from you!

At CI&T, we specialize in technological transformation, merging human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters globally, we've partnered with more than 1,000 clients throughout our 30 years of history. Artificial Intelligence is our reality.Important: If you reside in the Metropolitan Region of Campinas, attendance at the office in the city will be mandatory, according to the current attendance policy.We are seeking a Tech Lead / JavaScript Developer (Vanilla) to join our development team for a data product and work with a client in the Entertainment industry.Your responsibilities will include: - Designing sustainable architectural improvements.- Refactoring monoliths into microservices and modularizing embedded frontends.- Taking a systemic approach to understand impacts across back-end, video platforms, devices, products, and user experience.- Making architectural decisions.- Serving as a technical reference for multiple squads.- Documenting architectural decisions (ADR).- Being metrics-driven, fostering a culture of performance and quality. To meet this challenge, it is important to have:- Availability for hybrid work: 2 days per week at the client’s office (Rio de Janeiro/RJ);- Strong experience with Vanilla JavaScript;- Deep knowledge of pure JavaScript (without over-reliance on frameworks);- Solid understanding of: event loop, garbage collection, memory leaks, and DOM manipulation in constrained environments;- Knowledge of real hardware limitations: limited CPU, restricted memory, and older browsers;- Experience with microservices architecture and distributed systems.