Backend Developer - AI Trainer

Anyone AI is looking for Backend Developers to join a fully remote team in Colombia. This role supports a major AI research lab, focusing on software engineering for advanced projects. What you will do Design and implement complex engineering solutions, including fixing bugs, developing new features, and improving code performance. Create clear specification…

Join our dynamic team at stackbuilders as a Senior Python Engineer, where you'll play a pivotal role in developing robust data and automation systems for our esteemed global clientele. This opportunity is perfect for engineers who thrive in the realm of complex backend systems, focusing on designing data pipelines, API integrations, and crafting dependable, production-ready services that enhance real-world business processes.In this position, you will tackle projects centered around data processing, system integrations, and automation, navigating environments with ever-evolving requirements where strong engineering judgment is key.Key Responsibilities:Architect and develop backend systems utilizing Python.Create and uphold data pipelines and API integrations with third-party services.Manage both structured and unstructured data from diverse sources.Influence system architecture and scalability enhancements.Collaborate effectively with cross-functional teams and stakeholders.Guarantee the reliability, performance, and maintainability of production systems.

Join Amwell as a Senior Backend Engineer, where you'll play a pivotal role in developing cutting-edge healthcare solutions. As part of our dynamic team, you will design and implement robust and scalable backend systems that support our telehealth platform. Your expertise will directly impact the delivery of critical healthcare services!

Join Boldteam as a Senior Backend EngineerFounded in May 2019, Boldteam is a dynamic fintech startup created by a group of exceptional individuals with unparalleled experience, including the creators of PayU Latam and other technology experts. We are dedicated to developing innovative payment and banking solutions for small and medium-sized enterprises (MiPymes), freelancers, and entrepreneurs across Colombia. To date, we have successfully served over 450,000 clients and secured more than USD $120 million in investment funding from both domestic and international sources, establishing ourselves as one of the fastest-growing fintech startups in Latin America.At Bold, we offer a payment solution that enables micro-entrepreneurs to accept card payments and digital wallets through point-of-sale terminals and payment links. However, our vision extends beyond payments; we aspire to become a comprehensive platform offering financial and technological services tailored for small businesses, integrating payment solutions with an array of complementary software products that enhance our value proposition.Our mission is to unlock the potential of entrepreneurs. We firmly believe in empowering small business owners by providing customized financial and technological services that are accessible and user-friendly.Our organizational culture is founded on core values that include Mastery, Critical Thinking, Teamwork, Urgency, Openness, and a Customer-Centric Approach.For more information about Boldteam, visit our website: https://bold.co/Role OverviewAs a Senior Backend Engineer, you will be instrumental in building the core products of Boldteam. You will collaborate with your team to develop APIs and services designed using serverless and self-service architectures, utilizing Python as your primary programming language. We are seeking developers to join our Banking and Payments teams.Your role will involve close collaboration with Frontend Developers, Mobile Developers, DevOps specialists, and Testers to ensure that our standards are met within an agile and lean environment.Key ResponsibilitiesUtilize Python in your daily tasks.Design, build, and maintain APIs deployed on AWS.Create and maintain unit and integration tests.Contribute to architectural decisions and selection of tools and processes.Provide constructive feedback and insights.Thrive in a fast-paced and ambiguous environment.Benefits‍ Prepaid medical assistance Company stock options

About AddiAt Addi, we are pioneering a transformative financial platform that redefines payments, shopping, and banking—creating an ecosystem where consumers and merchants engage in seamless transactions and thrive collectively. Currently, we cater to more than 2 million customers and collaborate with over 20,000 merchants, establishing Addi as Colombia's premier and fastest-evolving marketplace.Embracing a cutting-edge, technology-first philosophy, we offer an array of banking solutions (including deposits, payments, and unsecured credit) alongside commerce services (e-commerce and marketing), effectively bridging the financial divide for millions and reshaping the notion of financial freedom. As the foremost provider of Buy Now, Pay Later solutions in the country, we have obtained regulatory approval to function as a bank, thereby unlocking even more extensive opportunities for our clientele. Over the past year, we have successfully reached profitability, underscoring our robust business model and our capacity to scale sustainably.Our mission has garnered the confidence of leading investors, such as Andreessen Horowitz, Architect Capital, GIC, Goldman Sachs, Greycroft, Monashees, Notable Capital, Quona Capital, Union Square Ventures, Victory Park Capital, and others, who support our vision for a progressive future. With their backing, we are not just experiencing growth—we are revolutionizing Latin America's financial landscape and crafting a new era for shopping, paying, and banking in Colombia.What distinguishes us is our approach to building. We are a conscientious company, fueled by extensive expertise in scaling technology, services, and products, and we embody our core values daily.About the RoleThis is where your journey begins. Below, you will uncover the essence of this role—the impact you will make, the challenges you will confront, and the qualities necessary to excel at Addi. If you are prepared to be part of something substantial, continue reading.What You Will DoAssume end-to-end ownership and manage the software you design, develop, test, and deploy into production.Collaborate closely with cross-functional teams to deliver high-quality software solutions.

Truelogic, based in New York, offers nearshore staff augmentation and has spent over 20 years supporting digital transformation for a diverse client base. The company’s team of more than 600 technology professionals partners with U.S. organizations, ranging from Fortune 500 firms to startups, to deliver technology projects across Latin America. This Senior Backend Engineer role is part of a team working for a major Mass Media and Broadcasting client. The client’s projects reach millions of users worldwide, especially during high-profile events, and require digital experiences that perform reliably at scale. The engineering group blends creative and technical expertise to help businesses respond to changing consumer needs, new technologies, and artificial intelligence. Role overview The Senior Backend Engineer will focus on building and maintaining the core backend infrastructure. This work goes beyond typical API development, requiring experience with systems that deliver low latency, high throughput, and high availability. Downtime is not an option in these environments. Main responsibilities Design and implement scalable, event-driven backend architectures for live-streaming data, interactive fan engagement, and real-time notifications. Develop type-safe backend services using Node.js and TypeScript, emphasizing performance and maintainability. Manage persistent live connections at scale with Socket.IO, ensuring reliable data flow between servers and clients during periods of peak demand. Location This position is based in Bogota.

We are seeking a dynamic and experienced Senior Python Software Engineer to join our team at La Haus. In this pivotal role, you will lead the consolidation of our Artificial Intelligence ecosystem architecture, driving automation and innovation within the real estate sector. You will integrate complex systems while ensuring scalability and preparing for the adoption of advanced AI solutions and generative artificial intelligence. With your disruptive vision and extensive experience, you will contribute to the reinvention of processes and the profound transformation of the Proptech sector.This role requires a technical leader who transcends incremental improvements and seeks to reinvent and redefine the Proptech ecosystem.

Location: Fully Remote (U.S. time zone overlap preferred)Type: Contract (Full-Time Preferred)Domain: Payments / Fintech / eCommerce InfrastructureAbout the ProjectJoin us in our ambitious drive to modernize a rapidly growing digital commerce platform that emphasizes payment orchestration, gateway optimization, and API-driven architecture.While familiarity with orchestration platforms like Gr4vy, Stripe, etc. is advantageous, it is not a prerequisite. However, extensive experience in the payments field is essential.About the RoleWe are looking for a seasoned Backend Engineer to spearhead our payment modernization initiative. You will collaborate closely with the CTO to develop and integrate sophisticated payment orchestration systems and establish direct connections to Payment Service Providers (PSPs).Responsibilities Build and maintain API integrations with various PSPs. Implement intelligent payment routing logic. Develop robust webhook handlers. Implement secure tokenization flows. Support complex subscription billing logic. Ensure system resilience, observability, and effective error handling.Requirements Minimum 6 years of backend development experience. Proficient in one or more programming languages: Node.js Java Python Go Extensive experience in REST API integration. Solid knowledge in webhook processing. Proven expertise in the payments domain is mandatory. Strong understanding of: Authorization/Capture flows. Refund management. Chargeback lifecycle. Subscription billing.Benefits High-impact architecture project. Executive visibility on project outcomes. Competitive contract compensation. Flexible remote work structure. Defined project scope and timelines. Opportunity for long-term engagement. Technical ownership of your work.

About DaCodesAt DaCodes, we are committed to delivering transformative software solutions tailored for startups and established companies in LATAM and the U.S. Our team comprises seasoned professionals who prioritize ownership, technical prowess, and exceptional engineering standards.Role OverviewWe are seeking a Senior Backend Engineer with a keen emphasis on integrations, adept at designing, executing, and sustaining robust, scalable, and secure backend systems, primarily utilizing Node.js, APIs, and event-driven architectures. This position demands a profound comprehension of backend engineering, protocols, concurrency, and security.Why This Role is Exciting Engage with complex backend systems and real-world integrations (SaaS, APIs, ERPs) Tackle challenges related to scalability, reliability, and distributed systems Collaborate with a highly skilled team that values technical ownership Work closely with U.S.-based clients on impactful projectsKey Responsibilities Architect and implement robust backend integrations across various systems (SaaS, APIs, internal services) Develop and uphold secure, scalable REST APIs Design and manage event-driven systems (webhooks, asynchronous processing, retries, idempotency) Implement authentication and authorization mechanisms: OAuth2 (authorization code, client credentials) JWT (token validation, and security considerations) API Keys / HMAC when necessary Address real-world integration challenges: Duplicate events Out-of-order data Partial failures Debug and resolve production issues within distributed systems Ensure effective logging, monitoring, and error handling Engage in technical decision-making and trade-offs

Join Bluelight Consulting as a Fullstack Engineer specializing in Python and React! In this role, you will collaborate with a diverse team to create innovative software solutions that meet client needs. If you are passionate about technology and eager to make an impact, we want to hear from you!

Location: ColombiaWork Mode: Hybrid Role overview The Senior Go Backend Engineer - Cybersecurity position focuses on designing, developing, and maintaining backend software for cybersecurity solutions. This role involves close collaboration with teams across disciplines to understand business needs and turn them into scalable applications. Leading technical projects and mentoring junior engineers are key aspects of this position, along with a commitment to improving software development practices for dependable system delivery. What you will do Design and develop high-performance backend systems for cybersecurity platforms using Go (Golang). Architect and implement scalable microservices and cloud-native solutions with an emphasis on high availability and resilience. Build and maintain CI/CD pipelines, observability, and monitoring tools to support reliable operations. Collaborate with cross-functional teams, contribute to system design, and mentor engineers to promote best practices. Requirements Experience developing backend systems in Go (Golang). Background in building scalable microservices and cloud-native solutions. Familiarity with CI/CD, observability, and monitoring practices. Ability to lead technical projects and mentor junior engineers.

At Frontera, we are transforming the landscape of care for children with autism and other behavioral health needs. Our dedicated team, comprising elite clinicians, technologists, and autism specialists, collaborates to create innovative AI tools that empower care teams to enhance their effectiveness, allowing them to devote more time to the children and families who need it most.Our platform is fully HIPAA-compliant and tailored to the practical requirements of behavioral health teams, ranging from psychologists to ABA therapists. By merging evidence-based practices with state-of-the-art technology, we are broadening access to premium services for families across the globe.Our MissionFrontera is committed to bridging the care gap: every child, regardless of location, should have access to effective behavioral healthcare.The RoleAs a Backend Engineer on our Machine Learning Platform team, you will play a crucial role in developing and maintaining the foundational systems that drive Frontera's AI and ML functionalities. This includes building training pipelines, model inference APIs, and video processing frameworks. You will design robust, scalable pipelines for ingesting, transforming, and serving extensive datasets utilized for ML training and predictions. Collaborating closely with machine learning scientists, data engineers, and product engineers, you will ensure that models can be efficiently trained, deployed, and updated, while facilitating rapid experimentation and long-term scalability. Your contributions will directly enable ML-driven features that empower care teams to work more efficiently and reach a wider audience of children in need.

This Senior AI Software Engineer role at Encora centers on designing, developing, and maintaining software solutions with a focus on Go and Python. Based in Colombia with a hybrid work arrangement, this position offers the chance to lead technical projects and shape the direction of AI-driven systems. Role overview The engineer will work closely with cross-functional teams to translate business needs into scalable software applications. Responsibilities include guiding technical discussions, mentoring junior team members, and ensuring software practices remain effective and reliable. What you will do Design and build scalable AI systems for cybersecurity and offensive security applications. Lead the development of agentic AI solutions targeting vulnerability detection, automation, and threat intelligence. Manage the full lifecycle of features, from initial concept through deployment, with a focus on performance and reliability. Mentor engineers and collaborate across teams to integrate AI capabilities into broader solutions. Work mode and location This position is based in Colombia and follows a hybrid work model.

Lead Staff Fullstack Engineer (React / AWS / Python) Colombia – Medellín or BogotáWizeline is a premier global provider of AI-native technology solutions, specializing in the development of innovative, AI-driven digital products and platforms. We collaborate with our clients to harness the power of data and AI, expediting market entry and facilitating business transformation. Our dynamic community of innovators promotes a culture of growth, collaboration, and impactful change.With the right talent and ideas, we believe there are no limits to our achievements.Are you the right candidate?If this sounds intriguing, let’s ensure you’re a great match for the role. We are seeking a Lead Staff Fullstack Engineer to spearhead the design and development of scalable, high-performance applications across both frontend and backend environments. This position merges hands-on technical leadership with deep expertise in modern frontend frameworks and cloud-native architectures on AWS.As a key contributor, you will define system architecture, mentor fellow engineers, and advocate for best practices while working closely with cross-functional teams to deliver impactful digital products.This opportunity is a hybrid role based in Medellín or Bogotá, offering a blend of onsite collaboration and remote flexibility.

Join Bluelight Consulting as a Fullstack Engineer, where you will harness the power of Python and React to develop innovative web applications. This fully remote position is ideal for tech enthusiasts in Latin America looking to make a significant impact. Collaborate with a dynamic team, implement creative solutions, and grow your skills in a supportive environment.

Join our dynamic team at Bluelight Consulting as a Fullstack Engineer specializing in Python and React. This fully remote position offers a chance to collaborate with a diverse group of professionals while working on innovative projects that drive impact across various sectors.As a Fullstack Engineer, you will be responsible for both front-end and back-end development, ensuring seamless integration and functionality of applications. Your expertise in Python and React will be essential in creating robust solutions that meet client needs.

Hopper is hiring a Senior Backend Engineer to focus on API development for its travel platform. This role is fully remote and open to candidates located in Colombia. Responsibilities Design and implement scalable backend systems that power Hopper’s travel services Collaborate with engineering, product, and design teams to enhance the user experience Maintain high availability and reliability across backend services Apply technical expertise to influence new features and backend architecture decisions Remote work This position is 100% remote for candidates based in Colombia.

Sutherland seeks a Technical Support Engineer specializing in backend payment processing. This position is based in Bogotá and centers on supporting clients with payment transaction systems. Key responsibilities Provide technical support for clients managing payment transactions Identify, troubleshoot, and resolve backend issues affecting payment processing Work to maintain reliable payment operations and respond promptly to technical concerns Support client satisfaction by ensuring efficient payment workflows Location This role is located in Bogotá.

Join our dynamic team at Bluelight Consulting as a Fullstack Engineer specializing in Python and React. This fully remote position allows you to work from anywhere in Latin America while contributing to exciting projects that drive innovation. You will collaborate closely with our talented team to develop and implement scalable web applications, ensuring high performance and responsiveness across various platforms.

Bluelight Consulting stands at the forefront of software consultancy, committed to crafting innovative technology solutions that enrich user experiences. Our unwavering dedication to providing superior service underpins our focus on quality and client satisfaction. We aim not just to develop groundbreaking applications but also to cultivate a collaborative and supportive work environment where every team member can flourish. With operations spanning the United States and Central/South America, we are in a thrilling growth phase, continuously on the lookout for outstanding talent to join our vibrant and diverse team.We invite a talented Fullstack Senior Engineer to join our expanding team at Bluelight Consulting. This role is perfect for individuals who excel in a fast-paced, dynamic setting where every voice is heard and valued. You will engage in meaningful and challenging projects, producing high-quality applications that make a significant impact in the market. We cherish continuous learning, personal development, and dedication, fostering a collaborative atmosphere that encourages professional growth. If you are enthusiastic about software development and eager to be part of a thriving consultancy, we welcome your application to embark on this exciting journey with us.