Walter

Design, develop, and maintain backend services and integration logic focusing on third-party API scalability and reliability. | Senior engineer with strong Ruby on Rails, TypeScript, and complex API integration experience including OAuth and asynchronous workflows. | [Summary] A leading collaborative design platform is seeking an experienced backend-focused engineer to enhance and evolve an integration-driven application. The project is centered on building and maintaining robust integrations using Ruby on Rails and TypeScript, with a strong emphasis on designing, implementing, and scaling connections with third-party systems. The role will contribute to improving reliability, extensibility, and overall integration architecture across the platform. [General information] They are looking for a senior-level engineer with strong experience in Ruby on Rails and TypeScript, and a proven background in building and maintaining complex integrations. The ideal candidate is comfortable working with multiple external APIs, designing integration workflows, and collaborating closely with product and engineering teams. [Task and Deliverables] Design, develop, and maintain backend services using Ruby on Rails to support integrations. Build and extend integration logic using TypeScript, ensuring reliability and scalability. Integrate the platform with third-party APIs and external systems. Collaborate with internal teams to define integration requirements and technical solutions. Improve existing integration architecture with a focus on maintainability, performance, and observability. Document integration flows and provide technical recommendations for future improvements. [Engagement highlights] Opportunity to work on high-impact integrations used by thousands of end users. Collaborative environment with experienced engineers. Potential for long-term collaboration based on performance and project outcomes. [Required Experience] Strong experience with Ruby on Rails in production environments. Experience with TypeScript. Proven background building and maintaining integrations with third-party APIs. Solid understanding of RESTful APIs, webhooks, and asynchronous workflows. Experience working in collaborative, cross-functional engineering teams. Experience integrating identity services, especially using OAuth. [Nice to have] Hands-on experience with Google APIs (Calendar, Chat, etc.) and app integrations. Familiarity with MCP (Model Context Protocol). Prior experience building integrations for SaaS or productivity tools.

Lead mobile development for Android and iOS platforms, architect features, coordinate with cross-functional teams, and ensure high-quality delivery. | 8-10 years of professional Android and iOS mobile development experience with Kotlin, Swift, Jetpack Compose, and leadership skills. | Job Description: Our client is a global media and tech company that connects people to their passions. We reach nearly 900M people around the world, bringing them closer to what they love—from finance and sports to shopping, gaming and news—with the trusted products, content, and tech that fuel their day. About the Role:: We’re seeking a seasoned Lead Mobile Developer/ Tech Lead with experience to guide mobile development efforts across both Android and iOS platforms. This role combines strong technical expertise with leadership skills to deliver high-quality, performant mobile applications and coordinate effectively with cross-functional teams. Responsibilities:: • Lead mobile development initiatives for Android and iOS platforms. • Collaborate with other teams to define features, plan implementations, and ensure project alignment. • Architect and oversee bespoke feature implementations, ensuring maintainability and scalability. • Ensure structured communication across engineering and product teams. • Guide the team in technical decision-making and problem-solving. • Oversee feature delivery, from planning to release, ensuring high performance and code quality. Requirements: • 8–10 years of professional mobile development experience in Android and iOS • Strong Kotlin and Android development background, including Jetpack Compose • Proficiency in iOS development (Swift) • Familiarity with state management patterns (Flux or similar). • Experience in performance optimization for mobile applications. • Strong background in mobile app performance optimization. • Excellent problem-solving and communication skills. Nice to have: • Experience with cross-platform architectural decision-making. • Prior leadership in a multi-platform mobile team. Engagement Highlights:: • Long term (12+ months ) and full-time opportunity • Commitment: We prefer full-time (40 hr/week) but open to considering part-time who can ramp up to full-time in 3-4weeks. • Overlap: 5+ hours with PST

Develop, migrate, and optimize Java-based cloud applications and core mail services while collaborating with cross-functional teams and mentoring engineers. | Strong Java OOP skills, RESTful APIs, microservices, AWS/GCP experience, SQL/RDS knowledge, distributed systems understanding, and problem-solving abilities. | Our client is a global media and tech company that connects people to their passions. We reach nearly 900M people around the world, bringing them closer to what they love—from finance and sports to mail, shopping, gaming and news—with the trusted products, content, and tech that fuel their day. We continue to be one of the largest and most recognizable email services in the world. Delivering over 4.5B emails daily, and with consistently top-rated mobile apps. Our Mail is a critical pillar in the company’s long-term growth strategy. About the Role:: We are looking for experienced Back-end Java Developer to join our team and work with one of the leading Mail platform in the world. We are working on a partner migration of our core mail services. Therefore we need to be cloud agnostic, lift and shift existing functionality to the cloud. This involves moving all our applications, code, platforms, and infrastructure to the cloud, optimizing it and modernizing it for future growth. About You:: You are passionate about growing your skills and value high quality application development on modern tech stack and cloud. You will enjoy building the next generation of communication products, web and mobile platforms. You are interested in how best to drive tasks to completion, collaborate to achieve your goals, think through scenarios and edge cases, learn from your leadership, and understand the broader impact of your work. If you are interested in joining a world-class team of passionate people and industry veterans who care about code quality, architecture, design and user experience as much as having fun together, then we’d like to talk to you. Tasks and Deliverables:: • Develop and maintain Java-based applications on cloud-based platforms. • Migration of Java applications and core mail services • Identify and implement optimizations, fine-tune / re-architect infrastructure • Integration with existing DevOps and CICD pipelines/environments • Improve future maintainability of the platform and surrounding tools • Design and implement solutions that meet business requirements, ensuring scalability, security, and reliability. • Work with cross-functional teams to develop and deploy complex applications on AWS/GCP. • Lead and mentor other engineers throughout design and development Requirements: • Strong back-end experience in software development using Java Object-oriented programming skills • Strong knowledge of RESTful APIs and microservices architecture • Experience with AWS or GCP • Understanding of data structures and algorithms • Experience with Distributed Systems and Large Scale Systems • Strong computer science fundamentals and knowledge of Design Patterns • Analytical and problem solving skills • SQL and RDS Database Nice to Have Experience: • Experience with DevOps tools and practices • Leadership experience Engagement Highlights:: • Commitment: We prefer full-time (40 hr/week) but open to considering part-time who can ramp up to full-time in 3-4 weeks. • Overlap: 6+ hours with PST • Client will be sending their own laptop (MacBook) to the talent to use

Lead development of AI-powered medical assistants by managing complex healthcare workflows, integrating policy recommendations, and supporting nursing operations through advanced data solutions. | Must have expertise in FHIR, Epic Clarity, HL7, healthcare IT, clinical workflows, and data engineering with experience handling large datasets. | Our client is a forward-thinking company focused on creating cutting-edge medical AI assistants. Their mission is to revolutionize healthcare by integrating AI into health systems to improve efficiency, patient experience, and overall system management. About the Role The client is seeking a SME's with Fast Healthcare Interoperability Resources / FHIR expertise and/or Epic Clarity experience to lead the development of AI-powered medical assistants tailored to healthcare systems. This pivotal role involves managing complex workflows, integrating policy recommendations, and supporting nursing staff operations with advanced data solutions. Tasks & Deliverables • Build and Enhance Medical AI Assistants data: Develop AI solutions that optimize patient recommendations, medical policy integrations, and support health system submissions data. • Data Management & Integration: Spearhead data extraction and management, with a focus on big data and cloud solutions. • FHIR Audit & Data Mapping: Conduct FHIR audits and establish data mapping to streamline clinical workflows. • Experience with HL7 • JSON Expertise in Data Engineering & Management and handling large datasets. • FHIR (Fast Healthcare Interoperability Resources) proficiency. • Solid background in Healthcare IT and Clinical Workflow expertise. • Previous experience on Epic Clarity. Nice-to-have Skills • Experience with Health Systems Management and Nursing Operations Support. • Knowledge of Insurance Companies Integration with medical policy recommendations. • Familiarity with developing smart apps aimed at improving patient history and data accessibility. Engagement Details • Commitment Type: Full-time • Duration: 3 - 6 months • Location: US-based • Start Date: Immediate start