• Define and evolve technical architecture, establishing standards that support safe, scalable, and reusable capabilities across teams. • Act as a technical leader across teams, influencing architectural decisions through design reviews, RFCs, and hands-on collaboration. • Own key features and architectural improvements end-to-end — from design through build — using modern, leading-edge technology and architecture. • Lead proof-of-concepts that inform roadmap and architectural decisions. • Take initiative on complex, business-critical challenges such as third-party extensibility and real-time multi-user synchronization. • Partner with QA, Product, Security, and Domain SMEs to ensure robust observability, reliability, and quality of the systems you own. • Establish and promote engineering standards and best practices to improve consistency, security, and maintainability. • Drive operational excellence by identifying systemic risks and eliminating root causes that impact reliability, performance, or cost. • Partner with DevOps and Security teams to evolve CI/CD pipelines, deployment strategies, and production safeguards. • Mentor senior and junior engineers through code reviews, design discussions, and technical guidance. • Participate in production support as a senior escalation point, leading root cause analysis and driving preventative improvements. • Collaborate with a team of deep technical experience and strong domain knowledge; brainstorm and share ideas within an agile team of developers, testers, and a product owner.

• Conduct cutting-edge research on modern cryptographic protocols, including post-quantum cryptography, threshold signatures, signature aggregation, and proof systems for blockchain applications. • Explore and benchmark NIST post-quantum signature standards and emerging constructions from recent academic literature. • Collaborate with senior researchers and engineers to translate research outcomes into practical applications. • Publish research findings and contribute to open-source cryptographic projects when appropriate.

Role Description The Senior Engineer is responsible for driving large-scale projects, delivering impactful features, and maintaining high engineering standards. You’ll solve complex problems, collaborate across teams, and mentor junior engineers while continuously improving our codebases and fostering a culture of technical excellence. With deep expertise in modern software development and Agile practices, you’ll shape how we build, scale, and innovate—directly influencing product velocity and engineering culture. What you’ll do: - Strategy: - Scope, plan, and lead delivery of large-scale features and roadmap initiatives. - Clarify and refine requirements across stakeholders in a fast-moving environment. - Navigate ambiguous requirements and competing interests to deliver features that delight users. - Contribute to long-term architectural planning and system design. - Technical / Execution: - Lead technical problem-solving for complex, cross-team challenges and production issues. - Continuously improve the codebase by upholding high standards for code reviews, architecture, testing, and deployment. - Ensure scalable and maintainable solutions across both frontend and backend systems. - Act as the go-to expert for debugging, troubleshooting, and system reliability. - Team / Collaboration: - Collaborate across engineering, product, and business teams to align on priorities and delivery. - Clearly communicate technical and non-technical concepts across the organization. - Participate actively in meetings, providing input that drives clarity and shared understanding. - Partner with cross-functional stakeholders to ensure features meet user and business needs. - Leadership: - Mentor and develop junior engineers through coaching, pairing, and feedback. - Champion engineering best practices, raising the bar for technical excellence across the team. - Model emotional intelligence and resilience, building trust and inspiring growth in others. - Research / Best practices: - Stay current on emerging technologies, frameworks, and architectures. - Promote Agile best practices and contribute to evolving team workflows (Scrum/Kanban). - Share insights on industry trends and competitor approaches to inform product and engineering strategy. What success looks like: - Successful delivery of complex, high-impact features that advance business goals. - Improved stability, scalability, and maintainability of the codebase. - Junior engineers consistently leveling up under your mentorship. - High trust and collaboration with cross-functional partners. - Recognition as a technical leader and problem-solver across the organization. Qualifications - 7–10 years of progressive software engineering experience (leadership required). - In-depth knowledge of modern software development practices and architectures. - Strong track record of scoping, delivering, and evolving large-scale features. - Experience with both frontend and backend technologies (polyglot mindset preferred). - Proficiency in Agile methodologies (Scrum or Kanban) and project delivery. - Excellent communication skills, with the ability to translate technical concepts for all audiences. - Strategic problem-solving ability with adaptability in fast-changing environments. - A passion for mentoring and a commitment to fostering a culture of excellence. How you work: - Driven by Impact: You deliver results that matter—prioritizing high-value work, meeting deadlines, and adapting quickly while keeping outcomes clear. - Strategic & Customer-Centric: You anticipate risks and opportunities, connect decisions to long-term growth, and build trust through proactive insights. - Curious & Growth-Oriented: You seek knowledge, ask sharp questions, and apply learnings fast—challenging the status quo with a mindset of improvement. - Collaborative & Resilient: You thrive in change by staying resourceful, solution-focused, and positive—removing roadblocks, sharing insights, and keeping morale high. - Accountable & Honest: You own your work, hold yourself and others to a high bar, and use transparent feedback to drive growth. - Emotionally Intelligent: You build trust through empathy and collaboration, foster inclusion, and inspire others with grit, optimism, and integrity. Our approach to compensation: We take a market-based & data-driven approach to compensation. We leverage data from trusted third-party compensation sources to help us understand the market value of a role based on function, level, geographic location, and scope. We evaluate compensation bi-annually, including performance and market-related factors. Our salaries are benchmarked against market Total Cash Compensation for the geographic location of our job posting. Compensation for some roles is structured as On Target Earnings (OTE = base + commission/variable) while for others it is structured as Salary only. The salary range listed for this role reflects the zones that applies to the location of this posting. To comply with local legislation and ensure transparency, we share salary ranges on all job postings. Skills, experience and other factors help determine the final salary we offer which may vary from the original range posted. Additionally, all permanent team members are eligible to participate in various benefits plans as part of their overall compensation package. Salary range: - For candidates located in the US: $125,000-205,000 USD - For candidates located in Canada: $110,000-160,000 CAD Where we work: We have offices in Boston, MA; Vancouver, BC; and Vancouver, WA. For select positions, we are open to hiring fully remote candidates. We post our positions in the location(s) where we are open to having the successful candidate be located. Diversity, inclusion, and accessibility: At Later, we are committed to fostering a culture rooted in an inclusion-first mindset at every level of the company, embracing the importance of hiring and building teams for culture add rather than culture fit. We openly build and maintain unbiased hiring, pay, and promotion practices to create a foundation for an equitable workplace, paving the way for systemic change. We are committed to creating a diverse environment and are proud to be an equal opportunity employer. All applications will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, national origin, disability, or age. Please let us know if you require any accommodations or support during the recruitment process.

Role Description XO Health is seeking a Senior Software Engineer for building applications that enable a Provider’s experience. This position will be responsible for the full stack design, development, testing, documentation, and analysis of features utilizing .Net, Angular, GraphQL, implementing a serverless architecture in AWS. The ideal candidate will be instrumental in designing and implementing solutions that are scalable, performance-optimized and maintainable. - Design, develop, and maintain scalable full-stack applications for a healthcare insurance platform - Engage with cross-functional teams to define and implement new features that meet the complex demands of the healthcare sector - Ensure application security and compliance with HIPAA and other regulations, focusing on performance and scalability - Implement serverless architectures on cloud platforms (Azure, AWS) to optimize backend functionality - Utilize modern front-end frameworks (React, Angular, Vue) to create responsive user interfaces - Integrate and customize rules engines for automated decision-making and efficiency - Employ microservices architecture to enhance application scalability, resilience, and deployment efficiency - Utilize GraphQL for efficient and flexible data retrieval, improving the application's data interaction layer - Mentor junior developers, fostering a culture of technical excellence, innovation, and ongoing learning - Stay updated on technology trends, regulatory changes, and best practices in healthcare to ensure our solutions are at the forefront Qualifications - Bachelor's degree in computer science, engineering, or a related field - Minimum of 8 years in full-stack software development, with a strong portfolio in both frontend (JavaScript, React, Angular, Vue) and backend (C#, .NET, JAVA) technologies - Proficiency in implementing solutions in cloud (AWS, Azure), including serverless environments - Strong understanding of software architecture principles, design patterns, and best practices - Demonstrated ability to translate complex business requirements into a well-executed technical roadmap - Demonstrated experience with microservices architecture, designing, deploying, and managing independently scalable service components - Experience with GraphQL for building APIs and efficient data retrieval - Strong background in SQL or NoSQL, database design, and complex data architectures - Proficient in AWS OpenSearch for building scalable search and analytics solutions, including indexing, querying, and optimizing search performance in distributed systems - Skilled in AI-first development practices utilizing Claude Cursor or Codex for intelligent code generation, accelerated development workflows, and enhanced productivity - Familiarity with Agile methodologies and a comprehensive understanding of DevOps practices - Exceptional problem-solving capabilities, adaptability, and leadership skills - Experience in the healthcare sector, especially with claims processing is a plus - Solid understanding of HIPAA and healthcare regulatory standards is a plus Benefits - Full compensation packages are based on candidate experience and relevant certifications - Salary range: ₹2,500,000 — ₹3,500,000 INR Company Description XO Health is an equal opportunity employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex (including pregnancy, childbirth or related medical conditions), race, color, age, national origin, religion, disability, genetic information, marital status, sexual orientation, gender identity, gender reassignment, citizenship, immigration status, protected veteran status, or any other basis prohibited under applicable federal, state or local law. XO Health promotes a drug-free workplace.