Full Stack Engineer, Growth

Calendly

WHAT’S IN IT FOR YOU?  Ready to make a serious impact? Millions of people already rely on Calendly, and we’re still in the midst of exciting product growth — it’s a fantastic time to join us. Everything you’ll work on here will accelerate your career to the next level. If you want to learn, grow, and do the best work of your life alongside the best people you’ve ever worked with, then we hope you’ll consider allowing Calendly to be a part of your professional journey. ABOUT THE TEAM & OPPORTUNITY This role focuses on building and running high-impact experiments that improve how users discover, adopt, and pay for Calendly within our Growth organization. You’ll work across the stack, partner closely with product and analysts, and ship changes that are measured in real business outcomes. This is not a traditional feature team role. The work is fast-moving, iterative, and data-driven. You’ll regularly balance speed, quality, and long-term maintainability while operating in an environment with incomplete information. WHAT WE VALUE ON GROWTH * Ownership and follow-through; You care about results and learning, not just delivery * Sound judgment paired with a bias toward action * Technical leadership that raises the bar for the team * Curiosity, humility, and openness to diverse perspectives A DAY IN THE LIFE OF A SENIOR FULL STACK ENGINEER AT CALENDLY * Design, build, and ship full-stack growth experiments end-to-end * Improve key metrics across acquisition, activation, engagement, and monetization * Collaborate daily with product managers, designers, and analysts * Analyze experiment results and iterate quickly based on data * Contribute to our experimentation platform and growth infrastructure * Make thoughtful engineering tradeoffs in pursuit of impact On a typical week, you might: * Build and ship an experiment that impacts a core funnel step * Partner with product, design, and analysts to refine a hypothesis or flow * Review experiment results and decide what to iterate, keep, or remove * Improve or extend internal tooling that supports experimentation * Review code, mentor teammates, and participate in team ceremonies WHAT DO WE NEED FROM YOU? * 5+ years of professional software experience, with much of that working on user growth (acquisition, activation, retention) or monetization * Strong, hands-on full-stack engineering skills, with the ability to independently design, build, and ship production changes across frontend and backend systems * Demonstrated experience running product experiments end-to-end * A data-driven approach to problem solving * The judgment to balance speed and quality in a growth environment * Comfort operating in ambiguous problem spaces where the path forward is not fully defined and success is measured by outcomes, not effort * A collaborative working style and the ability to partner deeply with product, design, and analytics to drive results * A collaborative mindset and a willingness to give and receive feedback * Authorized to work lawfully in the United States of America as Calendly does not engage in immigration sponsorship at this time. STRONG CANDIDATES MIGHT: * Arrive with clear points of view on what experiments to run, why they matter, and how to evaluate their impact * Be able to quickly dive into data to uncover growth or monetization opportunities * Demonstrate ownership beyond implementation, from hypothesis formulation through post-launch analysis and follow-ups * Have experience scaling growth systems or experimentation platforms in a production environment OUR STACK You don’t need experience with everything below, but you should be excited to work across it: * Backend: Ruby on Rails, Grape, PostgreSQL, Redis * Frontend: React, TypeScript * Infrastructure: Google Cloud Platform, Kubernetes, Argo Workflows Tier 1 Salary Hiring Range $224,400—$271,920 USD Tier 2 Salary Hiring Range $205,700—$249,260 USD Tier 3 Salary Hiring Range $187,000—$226,600 USD The ranges listed above are the expected annual base salary for this role, subject to change. Calendly takes a number of factors into consideration when determining an employee’s starting salary, including relevant experience, relevant skills sets, interview performance, location/metropolitan area, and internal pay equity. Base salary is just one component of Calendly’s total rewards package. All full-time (30 hours/week) employees are also eligible for our Top Performer Bonus program (or Sales incentive), equity awards, and competitive benefits. Calendly uses the zip code of an employee’s remote work location, or the onsite building location if hybrid, to determine which metropolitan pay range we use. Current geographic zones are as follows: * Tier 1: San Francisco, CA, San Jose, CA, New York City, NY * Tier 2: Chicago, IL, Austin, TX, Denver, CO, Boston, MA, Washington D.C., Philadelphia, PA, Portland, OR, Seattle, WA, Miami, FL, and all other cities in CA. * Tier 3: All other locations not in Tier 1 or Tier 2 If you are an individual with a disability and would like to request a reasonable accommodation as part of the application or recruiting process, please let your Recruiter know when first connecting with them. Calendly is registered as an employer in many, but not all, states. If you are located in Alaska, Delaware, Hawaii, Idaho, Iowa, Montana, Nebraska, North Dakota, Rhode Island, South Dakota, and West Virginia, you will not be eligible for employment. Note that all individual roles will specify location eligibility. All candidates can find our Candidate Privacy Statement here Candidates residing in California may visit our Notice at Collection for California Candidates here: Notice at Collection This role may require occasional travel for company events, team collaboration, or offsites.

ElevenLabs

ABOUT ELEVENLABS ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: * ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. * ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. * ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. HOW WE WORK * High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. * Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. * AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. * Excellence everywhere: Everything we do should match the quality of our AI models. * Global team: We prioritize your talent, not your location. WHAT WE OFFER * Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. * Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities. * Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend. * Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose. * Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy. * Co-working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend. ABOUT THE ROLE We are hiring for a Software Engineer on the growth team to focus on our self-serve customers (consumer, prosumer, and self-serve B2B) and product-led growth. You'll operate at the intersection of engineering, product, and marketing. The work will be a mix of novel channel creation and optimization on our channels already at scale. You'll operate across the full range of our metrics — including driving awareness, acquisition, retention, revenue, and referral. While we already have 1+ million users and significant revenue, there is still an incredible amount of low-hanging fruit. Specific responsibilities might include: * Ideate and implement (both frontend and backend) full growth features and experiments to run that have a significant impact on user acquisition, e.g., by driving product virality * Create in-product onboarding to drive activation * Set up a pricing experimentation system and use it to iterate on pricing REQUIREMENTS We do not require any formal experience, certifications, or degrees. Instead, we are seeking enthusiastic software engineers who can showcase solving impressively hard problems with artifacts such as past projects, designs, or GitHub contributions. We do require: * Strong full-stack engineering skills (you can either be backend leaning, frontend leaning, or half-half) * Strong product sense * Interest in growth and the business side of things * (Bonus) Experience launching or growing products * (Bonus) Competence with analytics and experimentation tools * (Bonus) Design skills If you love Andrew Chen's blog and Lenny's Newsletter, but can also dive deep across the full stack, this will be a perfect fit. You might be a technical ex-founder or full-stack engineer looking for high autonomy and the opportunity to have a significant impact. LOCATION This role is remote, so it can be executed globally. However, to facilitate working with the engineering team we strongly prefer candidates on the East Coast (US) or in Europe (GMT-4 to GMT+3). #LI-Remote

Prelude

About Prelude Prelude is redefining how companies authenticate and onboard users - turning what's traditionally a cost center into a growth lever. Our flagship product lets businesses send OTP codes with the best price-to-conversion ratio on the market, dynamically selecting the most effective channel in real time (optimized SMS, WhatsApp, and more) while actively blocking spam and fraud that legacy providers miss. Founded in 2022 by former Zenly team members who lived the pain of broken SMS authentication firsthand, we're already serving fast-growing companies across Europe and are expanding into the US. But authentication is only the starting point - we're building the platform for trust at scale, with an ambitious roadmap of market-defining products ahead. Why join us Today, we're a team of 60 and growing, based in Paris, building products that power secure and high-performance user onboarding for companies across the world. We believe small, highly skilled teams outperform large, fragmented organizations, and we are intentional about staying focused on impact, quality, and speed. We operate with a flat org structure and value in-person collaboration, which helps ideas move faster, decisions stay grounded, and teams take full ownership of what they build. Our values * Care We care deeply about our customers, our teammates, and the quality and reliability of what we ship. * Bias for Action We move fast, test in the real world, and iterate quickly rather than over-optimizing in theory. * Ownership We take responsibility end to end, from identifying problems to delivering outcomes and learning from results. What will you be doing? * Building polished, high-performance user interfaces using React and Typescript, with a strong focus on usability, speed, and design quality * Owning features end to end — from the React frontend through the Go backend, APIs, and data layer * Working across the stack on our distributed system using Go, DynamoDB, SQS, Redshift, and Lambdas * Shaping and building the next version of the Prelude API, which we strive to be industry-leading in terms of usability, performance, and functionality * Designing and building internal tools and dashboards that improve developer and team efficiency * Helping deploy and scale our fraud prevention model to hundreds of large customers * Interacting with clients on a daily basis to assist them and build features around their needs * Participating in on-call rotations to guarantee the stability and reliability of our services What are we looking for? * Strong experience building frontends with modern frameworks : React is ideal, Vue or similar also welcome * Solid backend skills in Go or TypeScript, with the ability to design and build reliable APIs and services * Years of experience working across the full stack, from UI to infrastructure * A preference for simplicity vs complexity, with intuition for what will scale effectively * A keen eye for product and UX — you care about what the user sees and experiences, not just what the code does * A product-led mindset, keen to code for the output and the impact * Fluent/professional English given our international team * Any experience with Rust, gRPC, or AWS serverless (Lambda, DynamoDB, SQS) is a plus What can we offer you? * Competitive compensation package with BSPCEs * 3 days in-office in central Paris, with 2 days WFH; and 4 weeks of remote work per year * 100% travel to the office subsidised * Health insurance via Alan * Urban Sports Club gym membership * We will provide you with the gear you need for your role (a laptop and a phone, for on-call rotations) * Swile meal vouchers * Free snacks and drinks in the office * An annual offsite in a great location (last one was at La Pradet!) * The opportunity to build something from 0-1, and make an impact every day Interview process * Meet a member of the Talent team * Technical assessment * In-person interview (system design, coding) * Final meeting with CEO We don't expect you to ace all these stages, we will evaluate your creativity and how you approach difficult problems. You should consider applying even if you don't meet all the criteria.