Numerator is looking for a talented and passionate Senior Fullstack Engineer (Python/React) to join our team. As part of our Verified Voices team, you will be a key driver in defining the technical direction for the platform, owning services across the entire stack—from the database and API layer to the user-facing interfaces. This is a high-impact, high-visibility role where you will mentor junior engineers and own critical features from architectural design through deployment. If you are seeking an environment where you get to do meaningful work with other great engineers, then we want to hear from you! What You'll Be Doing: - Fullstack Ownership: Drive the design, architecture, and implementation of high-performance, scalable features across the entire application stack, from backend Python microservices to modern React/TypeScript frontend interfaces. - Frontend Development & UX: Lead the development of rich, responsive, and intuitive user interfaces using React, Redux/State Management, and modern JavaScript/TypeScript, ensuring an excellent user experience. - Backend Architecture & APIs: Define, build, and maintain robust, scalable RESTful APIs and microservices using Python and modern frameworks to power the Numerator Insights platform. - System Reliability & Optimization: Manage and maintain the underlying cloud infrastructure (e.g., AWS) and databases, ensuring exceptional performance, reliability, security, and cost-efficiency of both frontend and backend systems. - Technical Mentorship & Standards: Drive engineering best practices, conduct thorough code reviews, and mentor mid-level and junior engineers on fullstack design patterns, testing, and operational excellence. - Cross-Functional Collaboration: Partner closely with Product Management, UX/UI Designers, and Data Science teams to translate business requirements and design mockups into technical specifications and scalable, shippable product features. - Strategic Evaluation: Proactively evaluate and implement new fullstack technologies, libraries, and architectural patterns (both Python and React ecosystem) to accelerate development and improve system efficiency.

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. A Brief Overview Designs, develops, and implements digital solutions and systems by applying advanced technical expertise to architect and code software applications, conduct system testing and debugging, collaborate with cross-functional teams, and contribute to the overall technical direction and innovation of digital engineering projects. What you will do - Designs and defines the technical architecture and infrastructure required for digital solutions. - Writes code, develops software components, and implements complex functionalities according to project requirements. - Collaborates with other members of the development team and stakeholders to make high-level architectural decisions, proposes design patterns, and ensures scalability, performance, and maintainability of digital solutions. - Leverages advanced programming skills to design and implement complex features, optimize performance, and ensure code efficiency. - Integrates various software components or systems, ensuring seamless communication and interoperability between different parts of the digital solution. - Writes and executes comprehensive test cases, conducts code reviews, performs debugging, and troubleshoots issues to ensure the reliability, stability, and high quality of digital solutions. - Participates in agile or other development methodologies, attends meetings, contributes to project planning, and helps drive the progress and success of digital projects. - Explores new tools, frameworks, and techniques to improve digital solutions and drive innovation within the development team. - Creates and maintains technical documentation, including system designs, architecture diagrams, code documentation, and other relevant documentation while sharing their knowledge and expertise with team members, ensuring effective knowledge transfer and collaboration. - Be willing to travel at least 10% of the time to office, conferences, on-sites/off-sites, and other events as needed. For this role you will need Minimum Requirements - 5 years of relevant work experience - Adept at problem solving and decision making skills - Adept at collaboration and teamwork - Adept at growth mindset (agility and developing yourself and others) skills - Adept at execution and delivery (planning, delivering, and supporting) skills - Strong software engineering fundamentals (data structures, algorithms, async programming patterns, object-oriented design, parallel programming) - Strong understanding and demonstrated experience with at least one popular programming language (.NET , GoLang or Java) and SQL constructs (PostGres, Snowflake, MS SQL). - Experience writing and maintaining frontend client applications, Angular preferred - Strong experience with revision control (Git) - Experience with cloud-based systems (Azure / AWS / GCP). - High level understanding of big data design (data lake, data mesh, data warehouse) and data normalization patterns - Demonstrated experience with Queuing technologies (Kafka / SNS / RabbitMQ etc) - Demonstrated experience with Metrics, Logging, Monitoring and Alerting tools - Strong communication skills - Strong experience with use of RESTful APIs and AKKA messaging technology - High level understanding of system deployment tasks and technologies. (CI/CD Pipeline, Kubernetes, Terraform). Preferred Qualifications - Certified Systems Engineering Professional (CSEP) preferred. - AWS Certified DevOps Engineer preferred. Education - Bachelor's degree preferred/specialized training/relevant professional qualification. About Us: As Signifiers, we are the heart of our culture. We define and build it -- from how we treat each other, to responding to our members’ needs and serving our communities. Living our Heart At Work Behaviors™ in every interaction every day helps us to put our purpose into action for our customers and members and create a workplace where we can all thrive. Every Signifier plays an important role in creating the culture we need, want, and deserve. We do this by putting people first, joining forces, creating simplicity, championing safety and quality, rising to the challenge, and inspiring trust. Join our team and bring your heart to work as we innovate and deliver solutions to make healthcare more personal, convenient and affordable. Signify Health, A CVS Health company, provides value-based care, reduces costs and improves outcomes for older adults. Our network of more than 12,000 clinicians across 50 states provides health risk assessments to health plan members. This brings clinicians into patients’ homes to identify chronic conditions, help bridge gaps in care, address social and behavioral risk factors on health and improve members' engagement. Anticipated Weekly Hours 40 Time Type Full time Pay Range The typical pay range for this role is: $83,430.00 - $222,480.00 This pay range represents the base hourly rate or base annual full-time salary for all positions in the job grade within which this position falls. The actual base salary offer will depend on a variety of factors including experience, education, geography and other relevant factors. This position is eligible for a CVS Health bonus, commission or short-term incentive program in addition to the base pay range listed above. Our people fuel our future. Our teams reflect the customers, patients, members and communities we serve and we are committed to fostering a workplace where every colleague feels valued and that they belong. Great benefits for great people We take pride in our comprehensive and competitive mix of pay and benefits – investing in the physical, emotional and financial wellness of our colleagues and their families to help them be the healthiest they can be. In addition to our competitive wages, our great benefits include: - Affordable medical plan options, a 401(k) plan (including matching company contributions), and an employee stock purchase plan. - No-cost programs for all colleagues including wellness screenings, tobacco cessation and weight management programs, confidential counseling and financial coaching. - Benefit solutions that address the different needs and preferences of our colleagues including paid time off, flexible work schedules, family leave, dependent care resources, colleague assistance programs, tuition assistance, retiree medical access and many other benefits depending on eligibility. For more information, visit https://jobs.cvshealth.com/us/en/benefits We anticipate the application window for this opening will close on: 03/20/2026 Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state and local laws.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description At LeadSimple, we build software that helps property managers and real estate professionals streamline operations and build strong customer relationships. We’re looking for a Senior Full-Stack Engineer to build and maintain our web applications using React on the frontend and Ruby on Rails on the backend. You’ll play a key role in shaping the architecture and delivering end-to-end solutions. - Design, build, and maintain full-stack features using React (frontend) and Ruby on Rails (backend). - Collaborate closely with product, design, and engineering teams to deliver features that enhance user experience and operational efficiency. - Integrate APIs and data sources, ensuring performance, scalability, and security. - Write clean, maintainable code and ensure high performance across browsers and devices. - Mentor other engineers and contribute to architectural decisions and best practices. Qualifications - 5+ years of full-stack development experience with React and Ruby on Rails. - Strong understanding of modern front-end frameworks, responsive design, and state management (e.g., Redux or Context API). - Experience building and consuming RESTful APIs. - Proficiency with relational databases (e.g., PostgreSQL) and deploying applications to cloud platforms. - Excellent communication skills and ability to work effectively in a remote-first team. Requirements - Experience with AWS infrastructure, GraphQL or other API paradigms. - Familiarity with CI/CD pipelines and automated testing frameworks. - Experience in property management or real estate tech.

• Design and implement scalable, high-throughput data ingestion systems that integrate internal and external data across domains • Design and build core data platform components, including ingestion, validation, orchestration, and lineage, with a focus on code quality and reliability • Build and evolve a centralized data lake using Apache Iceberg (or similar table formats) • Work across multi-cloud environments (AWS, GCP, Azure) to design and implement cloud-agnostic data ingestion and processing patterns • Contribute hands-on to the Semantic layer, ensuring data is easy to consume for BI and analytics teams • Partner with Senior Data Engineers, Platform Engineers, and Analytics Engineers to align how data is produced, stored, and consumed • Establish practical engineering standards for testing, observability, and operational excellence • Provide technical leadership through mentorship, code reviews, and design discussions, while remaining hands-on