Backend Developer

Lifted Upwork Company seeks a Backend Software Engineer (Java/Kafka) for a contract role in Mexico City. This position centers on building, maintaining, and improving backend systems that power the company’s applications. Responsibilities Develop backend services with Java Use Kafka to manage data streaming and event-driven workflows Maintain and enhance existing backend components Work closely with other team members to deliver stable, reliable features Location This contract role is based in Mexico City.

Join Arkham as a Senior Software Engineer (Backend)About ArkhamArkham Technologies is at the forefront of the Data & AI revolution, offering a sophisticated platform designed to unify data and leverage advanced Machine Learning and Generative AI models to tackle the most intricate operational challenges faced by businesses today.Our platform is trusted by industry leaders such as Circle K, Mexico Infrastructure Partners, and Televisa Editorial to facilitate seamless access to valuable data and insights, automate complex processes, and enhance operational efficiency. Through our innovative platform and implementation services, we empower our clients to save time, reduce costs, and establish a robust foundation for enduring Data and AI transformation.About the RoleWe are seeking a Senior Software Engineer with a strong backend emphasis to join our team and contribute to the design and construction of core platform services that drive Arkham’s AI Operating System. This position is perfect for engineers who thrive on challenges associated with high-performance systems, enjoy tackling complex distributed problems, and are adept at creating scalable microservices architectures that support swift and secure data and AI workflows.As a pivotal member of our team, you will be responsible for designing systems that manage substantial data processing, facilitate real-time event-driven communication, and support mission-critical AI and analytics operations for our clients. This role offers a hands-on, high-impact opportunity that combines technical expertise with product-oriented thinking.

Innovative Tech Leader:Join 3Pillar Global, a cutting-edge organization where your technical skills will reach new heights! As a senior software engineer, you will collaborate with industry pioneers, leading projects that transform urban landscapes, create new media solutions for enterprises, and foster advancements in healthcare. Our ambition is to revolutionize the tech industry, and your expertise will be pivotal in realizing this vision.In this role, you won't just write code; you'll design innovative solutions that redefine entire sectors. Embrace the opportunity to lead the future of technology with us.

Truelogic, based in New York City, specializes in nearshore staff augmentation and technology solutions. With over 600 professionals across Latin America, the company partners with U.S. organizations, from startups to Fortune 500 companies, on digital transformation projects. Truelogic’s focus is on delivering results that drive digital innovation. The client for this role is a global technology group known for combining creativity and engineering. Their work spans industries and includes collaborations with companies such as Amazon, JPMorgan Chase, Microsoft, MSNBC, NFL, Pfizer, and Zappos. They help organizations address shifts in consumer behavior, adopt new technologies, and integrate AI, all while solving complex technical problems across the consumer journey. Role overview This Senior Backend Engineer position focuses on building and maintaining backend systems for a large mass media and broadcasting platform. The systems must support millions of users during global, high-traffic events, where sub-second latency and high availability are critical. The backend infrastructure handles large-scale data throughput and must operate with minimal downtime. What you will do Design and implement scalable, event-driven architectures for live-streaming data, interactive fan features, and real-time notifications. Develop type-safe backend services using Node.js and TypeScript, emphasizing performance and maintainability. Manage persistent live connections with Socket.IO, ensuring seamless data flow between servers and millions of clients.

Cubbo is dedicated to revolutionizing urban spaces across Latin America by transforming underutilized real estate assets, such as vacant retail spaces and abandoned shopping centers, into innovative environments tailored for emerging industries, including urban micro-fulfillment centers for e-commerce. About the RoleWe are on the lookout for a dynamic Backend Engineer to join our pioneering team at cubbo. As one of our first hires, you will play a crucial role in shaping our product offerings. Following a successful funding round led by prominent U.S. venture capital firms, we're rapidly expanding our team. The ideal candidate is a proactive, adaptable individual with a proven ability to work collaboratively in a team. As a lead developer, you will take charge of creating new software products and enhancing existing solutions. Your expertise in large-scale applications and frameworks, coupled with excellent communication and leadership skills, will be key to your success in this role.Key ResponsibilitiesLead the development of product features from inception to deployment, including scoping, architecture, coding, testing, and rollout.Collaborate closely with executives, project managers, designers, and fellow engineers to devise solutions to user challenges.Shape the direction of cubbo's product and technology stack.QualificationsMinimum of 4 years experience in software development and product delivery.Proficient in modern programming languages such as Node.js, Ruby, or Python.Experience in designing and developing microservices or distributed systems.Strong expertise in systems and API design.Ability to manage multiple tasks effectively, ensuring organization and prioritization.Excellent written communication skills in English and proficiency in either Spanish or Portuguese, as our team operates remotely and primarily communicates via text.Why Join Us?By joining cubbo, you will become an integral part of a rapidly growing company with ambitious goals. We are committed to our mission and prioritize removing obstacles that hinder our progress. Our work culture is fully remote, with an unlimited vacation policy, reasonable work hours, and flexible schedules, as we believe that our best work emerges when we are well-rested and focused. We value diversity and actively encourage applications from candidates of varied backgrounds and experiences, as we believe that diverse teams foster creativity and innovation.

Join ALTEN México as a Senior Java Developer and become an integral part of our specialized team focused on engineering and technology solutions. You will work on innovative projects across various industries including Automotive, Energy, Aerospace, Banking, Telecommunications, and more.In this role, you will be responsible for the development, integration, and modernization of software tools used in validation and automation processes.The position requires a strong technical proficiency in Java, backend architectures, integration with DLLs (JNI/JNA), automation of validation flows, communication between heterogeneous tools, and connection with NI or dSPACE platforms. You will also ensure the quality of deliverables by adhering to best practices in development, testing, documentation, and traceability using GitHub and Rally.

About EarnInAt EarnIn, we are at the forefront of earned wage access, committed to creating innovative products that offer real-time financial flexibility for individuals living paycheck to paycheck. Our community members can access their earnings as they work, allowing them to spend, save, and grow their money without incurring mandatory fees, interest rates, or credit checks.With a highly experienced leadership team and esteemed funding partners such as A16Z, Matrix Partners, DST, and Ribbit Capital, we are in a strong position for sustained growth. As we expand, we are eager to onboard world-class talent to help shape the future of our company.POSITION SUMMARYAs a Staff Software Engineer at EarnIn, you will be instrumental in developing systems that are critical to our business. You will manage systems that facilitate real-time and scheduled money transfers, enabling us to track outcomes, reconcile discrepancies, and respond effectively to returns, chargebacks, and other events. We are looking for seasoned, collaborative, and resourceful engineers to join our backend teams. In this role, you will collaborate across various teams and contribute to the design and development of robust backend services.This position is ideally hybrid from our Mexico City office, but remote arrangements can be considered. EarnIn offers an array of employee benefits, including healthcare, reimbursement for internet and mobile phone expenses, a learning and development stipend, and potential travel opportunities to our headquarters in Mountain View. Salary ranges are determined based on role, level, and location.WHAT YOU'LL DOLead the design and implementation of new features, breaking down complex problems into manageable components, translating complexity into elegant designs, and crafting high-quality, maintainable code.Make a significant impact on the lives of our community members.Design and deliver robust microservice integrations via REST/gRPC APIs utilizing various communication, consistency, and coordination strategies.

About NeloNelo stands at the forefront of consumer fintech and e-commerce in Mexico, boasting over $500 million in annualized GMV and $70 million in annual revenue. Our vision is to empower consumers in Latin America by creating a modern alternative to traditional credit cards.Having secured over $40 million in venture capital from notable investors such as Homebrew, Two Sigma Ventures, and Susa Ventures, along with a $100 million asset credit facility from Victory Park Capital, Nelo is well-positioned for growth.Our compact yet highly skilled team comprises leaders from prestigious tech companies, including Uber, Amazon, Rappi, and DiDi. We emphasize speed, intellectual rigor, and operational efficiency, with offices in both Mexico City and New York City.Why This Role is UniqueUnlike many typical

Join our dynamic team at Encora as a QA Automation Engineer specializing in Java and Selenium. In this role, you will be responsible for designing and implementing automated test scripts, improving testing efficiency, and ensuring the highest level of software quality. You will collaborate closely with developers and product managers to identify testing requirements and provide valuable feedback throughout the development cycle. Your expertise in automation frameworks will help drive our commitment to quality and innovation. We are looking for a proactive individual who thrives in a fast-paced environment and is passionate about delivering top-notch software solutions.

Join truelogic as a Senior Front-end Engineer specializing in WordPress development for an exciting 4-month short-term contract. As a key member of our team, you will create dynamic and responsive web applications that elevate our clients' digital presence.We are seeking an innovative engineer who thrives in a fast-paced environment and has a passion for front-end technologies. Your expertise will help us deliver high-quality solutions that align with our clients' needs.

Join Inetum, a leading company in digital transformation, as a Backend Developer. In this role, you will be responsible for designing and implementing robust backend systems that power our innovative applications. You will collaborate with frontend developers and product managers to create seamless and efficient user experiences.

About CanalsCanals is a fully remote, profitable startup dedicated to revolutionizing the industrial supply chain, a staggering $10 trillion industry, through the power of AI. Our innovative platform seamlessly integrates with existing distributor systems, automating mundane tasks and minimizing failure points in the global movement of physical goods.Our talented team of 70 professionals, including around 45 engineers, is distributed across North and South America, fostering a diverse and collaborative work environment.The OpportunityAs our customer base experiences rapid growth, we require senior-level engineers who can act swiftly while ensuring exceptional quality. You will be responsible for managing intricate backend systems and influencing product features that provide substantial value to our users.What You’ll DoBackend engineering that emphasizes scalability, performance, and reliability.Take charge of large, complex projects from conception through to deployment.Work closely with product and customer teams to ensure engineering aligns with business objectives.Balance hands-on coding with guiding the team’s technical strategy.Contribute to shaping the future of Canals as we scale alongside our customers.What We’re Looking ForSenior-level experience in backend engineering with a focus on building scalable, high-performance systems.Proven ability to work independently in a dynamic, product-centered environment.Strong ownership of deliverables, ensuring projects meet high standards.Capability to mentor and support other engineers through constructive code reviews and architectural insights.Experience in high-growth startups or small teams is an advantage.Why Join CanalsFinancial stability: We offer a profitable environment without the unpredictability of venture capital shifts.Significant impact: Your contributions will enhance global supply chains, saving time and reducing waste for our customers.Robust engineering culture: We prioritize quality and detailed documentation to enable sustainable rapid progress.Cultivating ownership: We value speed and quality in our workflows.

Join ALTEN México as a Java Developer and become a vital member of our specialized engineering and technology solutions team. You will work on innovative projects across various industries, including Automotive, Energy, Aerospace, Banking, Telecommunications, and more.In this role, you will be responsible for developing, integrating, and modernizing software tools used for validation processes and automation.The position requires a strong technical proficiency in Java, backend architectures, integration with DLLs (JNI/JNA), automation of validation flows, communication between heterogeneous tools, and connecting with NI or dSPACE platforms. Additionally, you will ensure quality deliveries through best development practices, testing, documentation, and traceability in GitHub and Rally.

gsbsolutions1, a technology company based in Ciudad de México, is expanding its team and seeking a Senior Backend Node.js Developer. This position focuses on building and maintaining server-side applications to support the company’s growth in Latin America. What you will do Design and develop server-side applications using Node.js and related frameworks. Write code in JavaScript, TypeScript, or Python with attention to clarity and maintainability. Apply established web application architecture principles and design patterns. Use Git and other version control tools to manage codebases and collaborate on projects. Identify and resolve technical issues as they arise. Collaborate with colleagues from other teams to enhance the web technology stack. Assist with front-end tasks involving CSS3 and HTML5 when required. Location This role is based in CDMX, Ciudad de México, Mexico.

Accelerate Your Career with Clara!Join Clara, the fastest-growing company in Latin America, where we have created a premier solution for businesses to efficiently manage their payments. Serving over 20,000 large and expanding enterprises, we empower them with locally issued corporate cards, bill payment services, financing options, and a robust B2B platform designed for scalability.Our company is backed by leading global investors, including top regional venture capitalists such as Monashees, Kaszek, and Canary, along with notable global funds like Notable Capital, Coatue, and Goldman Sachs. At Clara, we are constructing the financial infrastructure that drives high-performing organizations throughout the region. If you're eager to thrive in a dynamic environment that will fast-track your career and enable you to do some of your best work alongside a dedicated team spread across the Americas, we welcome your application. About the RoleWe are seeking an experienced Senior Software Engineer with a strong background in high-scale, event-driven systems developed in Java.This position emphasizes the design and operation of distributed systems capable of processing large volumes of events through batch and real-time workflows. You will share architectural insights, enhance performance at scale, and fortify system resilience, all without the formal title of Tech Lead.Our tech stack includes AWS and OpenShift (OCP), as well as PostgreSQL and document-oriented NoSQL databases, requiring a robust performance discipline.If you have experience tuning the JVM under load, optimizing JSONB queries in production environments, and constructing reactive systems that maintain integrity under concurrency, we want to hear from you!

Join our dynamic team at Inetum as a Mid-Level Java Developer, where you will play a pivotal role in creating innovative software solutions. Your expertise in Java programming will contribute to exciting projects that drive our business forward. Collaborate with a talented group of developers and utilize cutting-edge technologies to enhance our applications and systems.

Join ALTEN Mexico as a Junior Java Developer and become an integral part of our team dedicated to engineering and technology solutions. You will engage in innovative projects across diverse industries, including Automotive, Energy, Aeronautics, Banking, Telecommunications, and more.In this role, you will be accountable for the development, integration, and modernization of software tools essential for validation and automation processes.The position necessitates a strong technical grasp of Java, backend architectures, integration with DLLs (JNI/JNA), validation flow automation, communication between heterogeneous tools, and connection with NI or dSPACE platforms. Additionally, you will ensure delivery quality by adhering to best development practices, testing, documentation, and traceability via GitHub and Rally.

¡Multiplica Talent está en busca de un nuevo miembro!Como consultora líder, nos especializamos en conectar al mejor talento digital con oportunidades laborales excepcionales.Con más de 25 años de experiencia en la selección de personal, nos dedicamos a reclutar profesionales capacitados, innovadores y con un fuerte deseo de crecimiento para nuestros valiosos clientes.Trabajamos con empresas en LATAM, USA y Europa, y contamos con un equipo diverso que opera de manera presencial y remota en distintas partes del mundo.Nuestros talentos son agentes de cambio, contribuyendo a la creación de las organizaciones del futuro.Actualmente, buscamos un Desarrollador Java Semi Senior que desee unirse a un equipo dinámico y participar en el desarrollo y la mejora de soluciones tecnológicas en proyectos innovadores.

Join Inetum as a Java Developer and be part of an innovative team that is dedicated to delivering high-quality software solutions. In this role, you will work on exciting projects that challenge your skills and enable you to grow professionally. If you are passionate about coding and looking to make a significant impact, we want to hear from you!