Principal Software Development Engineer (React/Javascript/Typescript)

Zscaler

About Zscaler Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.    Role  We are looking for a Principal Software Development Engineer to join our team. This is a Hybrid, Bangalore role, reporting to the Sr. Director, Application Engineering - Central Authority in the Central Authority department. You will work on the control plane for the Zscaler Internet Access (ZIA) product, which has redefined how security services are delivered in the cloud. You bring a deep understanding of security protocols and services to help us build the next generation of cloud security. What you’ll do (Role Expectations) * Lead the technical roadmap to modernize enterprise platforms using API-first design and microservices architecture * Design, develop, and deploy highly resilient, low-latency, event-driven solutions while maintaining ownership from API tiers to back-end services * Drive a culture of quality by setting coding standards, performing code reviews, and championing TDD/BDD practices and mentorship * Partner with Product, DevOps, and System Architects to translate complex business needs into scalable, high-performance technical solutions * Manage service lifecycles via Docker/Kubernetes and ensure system health using observability tools like Prometheus and Grafana Who You Are (Success Profile) * You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful. * You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution. * You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, knowing that solving the hard problems delivers the biggest impact. * You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust. * You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose. What We’re Looking for (Minimum Qualifications) * Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions to optimize outcomes within your functional domain * 13+ years in software development, with at least 8+ years specializing in production-grade microservices * Hands-on experience in modern programming languages such as Java, Go, or Rust * Expertise in distributed data patterns (CQRS, Event Sourcing) and event-driven communication (Kafka, RabbitMQ, or SQS) * Extensive hands-on experience with Docker and Kubernetes within AWS, Azure, or GCP environments, alongside proficiency in both SQL (PostgreSQL, MySQL) and NoSQL (Cassandra, MongoDB, or Cosmos DB) database design and scaling What Will Make You Stand Out (Preferred Qualifications) * Experience implementing AI-assisted engineering tools or integrating predictive AI/ML models to optimize control plane resiliency and automated scalability * Experience with Service Mesh technologies such as Istio or Linkerd * Practical knowledge of chaos engineering and advanced performance testing tools #LI-Hybrid #LI-VV3 At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: * Various health plans * Time off plans for vacation and sick time * Parental leave options * Retirement options * Education reimbursement * In-office perks, and more! Learn more about Zscaler's hybrid working model and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Cloudflare

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.  At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations: Austin, TX - Hybrid ABOUT THE TEAM The Data Intelligence & Analytics organization builds the core data platform and internal products that power decision-making across the company. We design and operate large-scale data systems, own the company’s data lake, ingestion infrastructure, and platform tooling, and develop end-to-end applications that transform complex datasets into fast, reliable, business-critical products used daily by go-to-market, product, and engineering teams. Our work sits at the intersection of data platforms, distributed systems, and product development, giving engineers the opportunity to own meaningful problems across the stack and build systems that truly run the business. ABOUT THE ROLE We are looking for a visionary and hands-on Lead Machine Learning Engineer to join our Austin team. In this role, you will be the principal architect behind the next generation of our unified AI/ML platform, designing and building the infrastructure that powers everything from traditional predictive models to generative AI, large language models (LLMs), and autonomous agent frameworks. You will own the end-to-end technical strategy, blueprint, and execution of scalable backend services and data pipelines that support AI-driven applications across go-to-market, engineering, and product teams. Because our products are initiated and owned entirely within the team, you will drive the vision from initial requirements and system design to global deployment, optimization, and long-term evolutionary ownership. WHAT YOU'LL DO * Architect and evolve a highly scalable, multi-tenant AI/ML platform that seamlessly unifies traditional ML (classification, regression, forecasting) and Generative AI/LLM orchestration. * Design and implement robust production-grade AI Agents and Advanced Chatbots. Build reliable execution environments for Multi-Agent Systems, including state management, long-term memory architectures, and Model Context Protocol (MCP) server integrations. * Build high-throughput, low-latency application backends and orchestration layers. Partner closely with data, platform, and full-stack engineers to ensure seamless feature delivery and reliable production operations. * Act as a technical anchor for the Data Science team – enforcing rigorous engineering standards, leading design and security reviews, evaluating build-vs-buy decisions, and mapping business requirements to robust technical designs. * Evaluate trade-offs and drive adoption of modern AI infrastructure tools, optimized embedding pipelines, vector databases, and serverless compute paradigms (such as Workers AI).\ WHAT WE ARE LOOKING FOR * Extensive experience as a Senior or Lead ML Engineer, with a proven track record of architecting and operating production-grade ML platforms, services  and distributed backends. * Strong competency in Traditional ML lifecycles (feature stores, training pipelines, model monitoring) alongside deep experience in Generative AI patterns (RAG pipelines, context engineering, fine-tuning, guardrailing, and agentic AI systems). * Mastery of Python and robust experience with modern backend ecosystems. Familiarity with (or willingness to collaborate on) full-stack technologies like React and TypeScript is highly valued. * A builder's mindset. You are comfortable navigating ambiguity, shaping your own technical roadmap, adapt as needed and taking extreme ownership of system reliability, costs, and model performance. EXAMPLES OF DESIRABLE SKILLS, KNOWLEDGE AND EXPERIENCE TECHNICAL LEADERSHIP & SYSTEMS ARCHITECTURE * 3+ years of dedicated ML Engineering experience within a large-scale, enterprise environment (handling petabyte-scale data and working across globally distributed teams). * Proven ability to architect, scale, and secure reliable, highly observable distributed systems, with a track record of leveling up platform foundations. * Experience mentoring engineers, leading by example through high-quality code and rigorous design reviews, and fostering a culture of technical excellence. * Strong problem-solving skills with a demonstrated ability to independently drive complex projects through ambiguous spaces and collaborate cross-functionally with data engineers, full-stack teams, and analysts. AI, LLMOPS & AGENTIC ENGINEERING * Hands-on proficiency in building production-grade GenAI applications and multi-agent systems using advanced LLM frameworks like LangGraph, LangChain, or Autogen. Deep understanding of agent harness primitives, state management, memory architectures, and tool-calling loop mechanics. * Experience establishing LLMOps foundations, including automated prompt tracking, LLM evaluation pipelines (e.g., Ragas, TruLens), vector database optimization, context/token management, and real-time guardrailing/moderation layers. * Deep experience in scientific computing using Python (Scikit-Learn, PyTorch, or TensorFlow) and deploying traditional systems for end-to-end training, batch/real-time inference, and model observability. INFRASTRUCTURE, CLOUD & DATA PLATFORMS * Strong experience with Docker and Kubernetes for containerization and orchestration, alongside Infrastructure-as-Code tools like Terraform and public cloud ecosystems (GCP, AWS, or Azure). * Hands-on experience with modern MLOps platform tools (e.g., Airflow, Argo Workflows, ArgoCD) and data systems including BigQuery, Postgres, and robust ETL/ELT practices. * Experience with full-stack web technologies and serverless/edge environments (FastAPI, TypeScript/JavaScript, Cloudflare Workers), with the agility to contribute across a multi-language stack. * Strong foundation in continuous integration/continuous deployment (CI/CD), testing frameworks (Pytest), and robust version control practices. EDUCATION & COMMUNICATION * M.S. or Ph.D. in Computer Science, Statistics, Mathematics, or a related quantitative field. * Exceptional written and verbal communication skills, with the ability to translate complex technical architectures into clear concepts for both engineering peers and business stakeholders.   What Makes Cloudflare Special? We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet. Project Galileo: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost. Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states. 1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers. Sound like something you’d like to be a part of? We’d love to hear from you! Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs.  More details about this will be available at that stage of the interview process. This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license. Cloudflare is proud to be an equal opportunity employer.  We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness.  All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer. Cloudflare provides reasonable accommodations to qualified individuals with disabilities.  Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.  If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.

Wayflyer

About Wayflyer Today's small businesses need a capital provider that keeps pace with their growth ambitions. Traditional financing options are slow, cumbersome and often out of reach. That's why we built Wayflyer. Our technology allows us to assess businesses in minutes, generate financing offers that reflect their growth potential and send funds in as little as 24 hours. To date, we've deployed over $6bn to thousands of businesses worldwide, backed by Tier 1 banks like J.P. Morgan. You'll be collaborating with ambitious colleagues from around the world. We have offices in Dublin, London, New York, Charlotte, Berlin and Sydney. The challenge When a founder logs into Wayflyer, what they see, and how easily they can make sense of it, directly affects whether they trust us with their business. We're building financial products that need to feel effortless. What you'll actually do * Provide technical leadership in architectural decisions and champion our existing frontend best practices, advocating for our standards and helping push them forward across the team * Lead the design and implementation of complex frontend features using TypeScript and React, ensuring high-quality, reusable components that scale across our financial products * Partner with product and design teams to shape product outcomes, defining intuitive experiences that help e-commerce brands access and manage their funding. This goes beyond delivering UI; every engineer here plays a meaningful role in what we build and how it serves our customers * Own end-to-end delivery: shape solutions with product/design, build and test, ship to production and monitor/iterate using our observability stack. * Drive improvements in performance, accessibility, and user experience across our platform * Mentor engineers across the team and conduct thorough code reviews to maintain high quality standards * Work closely alongside our backend engineers, contributing across the stack when needed. We actively encourage curiosity and flexibility about where you can add value * Lead technical discussions and contribute to the team's technical strategy * Identify and proactively address technical debt and system scalability challenges Who thrives here You should be comfortable making and defending technical decisions, while remaining open to feedback and alternative approaches. You'll need to balance technical excellence with business needs and help guide the team toward pragmatic solutions. You excel at stakeholder management and can effectively communicate technical concepts to non-technical audiences. You're proactive in identifying and addressing potential issues before they become problems. We look for candidates with most or all of the below traits that can point to real experience applying them. * Bachelor's degree in Computer Science, Engineering, or related field, or equivalent practical experience * 5+ years of experience with deep expertise in frontend development * Advanced proficiency in TypeScript and extensive experience with React and modern frontend architectures * Expert knowledge of HTML5, CSS3 and JavaScript fundamentals with a focus on performance optimisation * Strong experience designing and implementing RESTful APIs and managing complex state, including hands-on experience with TanStack Query * Experience contributing to and working with design systems * Familiarity with backend technologies (Python, Django) and a willingness to contribute across the stack. This isn’t a hard requirement, but that flexibility matters to us. * Experience with CI/CD pipelines (especially GitHub Actions) and maintaining high-quality testing practices using tools like Storybook/Chromatic, Playwright, and Vitest * Proven track record of leading technical initiatives and mentoring engineers * Strong problem-solving skills with the ability to break down complex problems * Excellent communication abilities and experience managing stakeholder relationships Given what we do, experience in financial services, fintech and business-to-business organisations is particularly interesting to us. We hire for range What you're like as a person and how you treat people is a big deal for us. People love working with you. You're helpful and generous with your time and knowledge. People love helping you back. People know where they stand with you. You're always looking to learn and grow, on a personal and professional level. And you're always looking to help others learn and grow by sharing your own knowledge and experience. You know why diversity, equality, inclusion and belonging matters, and speak up when we can do better. What this role could turn into Frontend engineers here tend to grow in a few different directions: shaping architecture across multiple products, moving into staff or principal engineering tracks, or stepping into engineering management. Some engineers want to go deep on the technical track; others find their strengths pull them toward leading and growing people. We support both paths, and the direction depends on where your interests are strongest. Location and working policy 📍Fully remote, Europe. The good stuff 25 days off, plus public holidays. Equity - because you should own a piece of what you're building. Generous parental leave for primary and secondary caregivers. 60 days a year to work abroad from wherever you want. By submitting your application, you acknowledge that Wayflyer Limited will process your personal data for the purpose of evaluating your suitability for the role. Such processing is based on the need to take steps prior to entering into a potential employment agreement. To learn more about how we handle your personal data, you can contact our privacy team at privacy@wayflyer.com or review our privacy notice at https://wayflyer.com/privacy-notice.