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Key ResponsibilitiesLead the implementation and ongoing maintenance of robust WhatsApp API functionalities to guarantee effective communication flows. Transform validated MVP concepts into stable, scalable, and well-documented features within our platform. Design, develop, and maintain high-quality backend services that underpin our product architecture. Collaborate with the experimentation team and the Director of Engineering to align technical deliverables with product objectives. Ensure new features meet stringent quality standards through thorough testing, code reviews, and adherence to best software engineering practices. QualificationsFluent in English with excellent communication skills. Demonstrated professional experience as a Backend or Full Stack Engineer. Proven experience with WhatsApp API integrations in prior projects. Strong proficiency in developing and deploying production-grade applications with a focus on maintainability. Ability to write clean, efficient code and document logic for future scalability. A collaborative mindset, thriving in a dynamic and fast-paced environment.
About the job
About Katapult Labs
Katapult Labs is an innovative nearshore software development agency that merges top talent from Latin America with exceptional execution and leadership expertise, all while adopting an AI-first approach to product engineering. We specialize in collaborating with PMF+ startups and businesses across the United States, enhancing their product engineering capabilities through a team augmentation model.
The Position
We are on the lookout for a talented Full Stack Developer with a Backend focus to become a vital part of our team. This role is pivotal in transforming innovative prototypes and high-impact features, particularly those involving WhatsApp integrations, into scalable production-ready solutions. You will closely collaborate with our experimentation leads and the Director of Engineering, ensuring that every feature adheres to our high standards of quality, security, and maintainability.
About Katapult Labs
Katapult Labs is at the forefront of software development, combining the brightest minds from LATAM with world-class leadership to deliver top-notch product engineering solutions. With a focus on innovation and an AI-first philosophy, we partner with forward-thinking startups and enterprises to elevate their product capabilities.
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…
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
Embrace a new opportunity with 8am!About the role:We are seeking a talented Marketing Backend Developer to enhance and support the backend infrastructure that underpins our customer-facing websites and Marketing Operations systems. This position is designed for a developer with solid backend fundamentals, experience working with modern cloud and API-based architectures, and a desire to expand their technical expertise while collaborating closely with our marketing and web teams.In this role, you will contribute to the development, maintenance, and optimization of backend services and integrations that connect with systems such as Marketo, Salesforce, and other marketing technologies. You'll partner with senior engineers and cross-functional teams to create scalable solutions that enhance data flow, automation, and overall marketing efficiency.About us:At 8am, we envision a world where professionals thrive. Every day, we strive to empower professionals with innovative, trusted technology that enables them to deliver world-class outcomes for their clients and achieve exceptional financial results. Our purpose-built solutions simplify operations, ensure compliance, and drive profitable growth, allowing professionals to focus on their clients and accomplish more meaningful work.Founded in 2005, 8am™ (formerly AffiniPay) serves as a professional business platform designed to help legal, accounting, and other client-centric professionals operate more effectively and profitably. Today, over 250,000 professionals across the U.S. rely on 8am to work smarter, serve clients better, and unlock their full potential. We have been recognized as one of Inc 5000’s fastest growing companies in the U.S. for 13 consecutive years, and as a result, our teams continue to expand!What you'll do:Develop, maintain, and support backend services and APIs that power customer-facing websites and marketing platforms.Assist with integrations between Marketing Operations systems (e.g., Marketo, Salesforce) to ensure reliable data flow and workflow automation.Contribute to database design and maintenance to support marketing and customer data needs, focusing on reliability and performance.Build and maintain APIs and services that integrate with third-party platforms and internal tools.Help optimize backend code and processes for performance, scalability, and stability.Collaborate with front-end developers, designers, and marketing specialists to create cohesive user experiences.
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.
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 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.
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
Senior Backend .NET Developer with extensive experience in designing, building, and maintaining enterprise applications. The ideal candidate will possess a strong command of .NET Framework / .NET Core, API development, and the consumption/creation of REST and SOAP services, ensuring scalable, secure, and high-performance solutions.Main ResponsibilitiesDesign, develop, and maintain applications and services based on .NET (.NET Framework / .NET Core).Build and document robust RESTful APIs and SOAP services.Integrate applications with internal and external systems through web services.Optimize existing code, enhance performance, and ensure high-quality practices.Implement best architectural practices, design patterns, and SOLID principles.Participate in code reviews, technical analyses, and requirements definition.Collaborate with multidisciplinary teams (QA, Infrastructure, Architecture, Product).Ensure adherence to software security, integrity, and scalability standards.
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.
Valtech collaborates with recognized global brands to create digital experiences that shape how customers interact with businesses. The company emphasizes a values-driven culture and encourages employees to grow professionally while contributing to projects that influence the future of customer experience. Role overview The Senior AEM Backend Developer position is fully remote within Colombia. This role centers on building and maintaining backend solutions using Adobe Experience Manager (AEM). Projects focus on developing digital platforms that help clients connect with their audiences in new ways. What you will do Work with a distributed team to deliver backend solutions for digital platforms Contribute to projects that help shape customer interactions for global brands Engage in continuous learning and share knowledge with colleagues Work culture Valtech supports international career growth and values each team member’s input. Employees have opportunities to expand their skills and make a meaningful impact on both client projects and the broader industry.
resilientco is hiring a Senior Performance QA Engineer focused on API performance testing in Medellin. This position centers on making sure applications handle high demand, remain reliable, and perform well under stress. Role overview This role concentrates on testing APIs to identify bottlenecks and ensure systems scale as needed. The Senior Performance QA Engineer will work to confirm that software solutions meet both internal standards and client expectations for speed and stability. What you will do Test API endpoints for performance, scalability, and reliability Identify and report performance issues Contribute to delivering software that meets client requirements Location This position is based in Medellin.
Role Overview AffiniPay is looking for a Senior Backend Developer focused on marketing technology. This fully remote position is open to candidates based in Colombia. The role centers on building and maintaining backend systems that power the company’s marketing efforts. What You Will Do Develop and support backend services that drive marketing platforms and campaigns Work with marketing and product teams to deliver solutions that meet business goals Optimize backend systems for integration, speed, and reliability Collaboration This position works closely with both marketing and product teams. Expect regular communication and joint problem-solving to ensure technology aligns with marketing needs. Location Remote - Colombia
About Katapult LabsKatapult Labs is an innovative nearshore software development agency that merges top talent from Latin America with exceptional execution and leadership expertise, all while adopting an AI-first approach to product engineering. We specialize in collaborating with PMF+ startups and businesses across the United States, enhancing their product engineering capabilities through a team augmentation model.The PositionWe are on the lookout for a talented Full Stack Developer with a Backend focus to become a vital part of our team. This role is pivotal in transforming innovative prototypes and high-impact features, particularly those involving WhatsApp integrations, into scalable production-ready solutions. You will closely collaborate with our experimentation leads and the Director of Engineering, ensuring that every feature adheres to our high standards of quality, security, and maintainability.
Role overview Jobgether is hiring a Senior Node.js Backend Developer located in Colombia to support a partner in the global digital finance sector. The team is responsible for building secure, scalable backend systems that handle real-time transactions for customers worldwide. What you will do Design and implement backend architecture using Node.js Develop and maintain distributed systems and APIs that power financial products Focus on performance optimization and infrastructure enhancements Collaborate with engineering teams across different regions Support mission-critical services while working remotely Requirements Proven experience building secure, scalable backend systems Deep knowledge of Node.js development Interest in backend architecture and distributed systems Strong problem-solving skills for complex technical issues Comfort working with real-time systems and performance tuning Work culture This remote-first team values autonomy, ownership, and continuous learning. Engineers are encouraged to innovate and grow their expertise in modern backend technologies.
We are seeking a highly skilled Senior Backend Developer to join our dynamic team at inetum2. In this role, you will be responsible for designing and implementing robust backend systems that support our innovative solutions.The ideal candidate will have extensive experience in backend development, a deep understanding of server-side technologies, and a passion for building scalable applications. You will work closely with cross-functional teams to deliver high-quality software that meets our clients' needs.
About CanalsCanals is a dynamic and fully remote startup that is revolutionizing the industrial supply chain, a $10 trillion industry, through the power of AI. Our innovative platform is designed to seamlessly integrate with existing distribution systems, automating repetitive tasks and minimizing failure points in the logistics of physical goods globally.With a talented team of 70 professionals, including approximately 45 engineers, we operate across North and South America.The OpportunityAs we experience rapid growth in our customer base, we are in search of senior-level engineers who can deliver high-quality work with agility. You will be responsible for managing complex backend systems and contributing to product features that create significant value for our users.Your ResponsibilitiesPerform backend engineering tasks that prioritize scalability, performance, and reliability.Lead major projects from initial planning through to deployment.Engage collaboratively with product and customer teams to ensure engineering aligns with business objectives.Balance hands-on programming with steering the technical direction of the team.Contribute to the ongoing evolution of Canals as we scale alongside our customers.Ideal Candidate ProfileExtensive experience as a backend engineer, specializing in scalable, high-performance systems.Proven ability to work autonomously in a fast-paced, product-driven setting.Demonstrated ownership of deliverables, ensuring high-quality project outcomes.Skilled at mentoring and assisting other engineers through insightful code reviews and architectural guidance.Experience in high-growth startups or small teams is advantageous.Why You Should Join CanalsProfitable and Stable: Enjoy the reliability of a profitable company without the uncertainties of venture funding.Make a Difference: Your contributions will enhance global supply chains, saving time and reducing waste for our customers.Strong Engineering Culture: We prioritize quality and documentation to maintain a fast-paced and sustainable work environment.Ownership Culture: We value speed while ensuring quality is never compromised.
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.
We are seeking a talented Senior Backend Developer to take on the following responsibilities:- Design and develop complex server-side architectures.- Make key technical decisions and lead the implementation of cutting-edge technologies.- Conduct code reviews and mentor junior developers while providing guidance and support.
About the Role rehire is looking for a Senior Digital Designer based in Colombia to join its digital and creative agency team. This position is fully remote. The role centers on producing visually engaging digital assets that support client goals. What You Will Do Create digital designs that meet client objectives and brand standards Interpret briefs and translate them into effective visual concepts Suggest improvements to design processes and deliverables Work hands-on with design projects from concept through delivery Collaborate with content, paid media, and project management teams to ensure quality and consistency Collaboration This role involves close teamwork with colleagues across content, paid media, and project management. The goal: deliver work that is visually strong, consistent, and effective for every client project.
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.
