Senior Software Engineer ReactJS - Self Serve
Posted Updated
At Brevo, we’re not just building a CRM. With our technology, we’re helping millions of organizations build lasting relationships with their customers.
From emails and SMS to WhatsApp, Chat, and Marketing Automation, our tools are intuitive, powerful, and built to scale with every ambition. We give businesses a clear view of the customer journey, so they can focus on what matters: connection.
As a certified B Corp, we’re proud to grow with purpose, committed to high standards of social and environmental impact, not just performance.
Today, more than 500,000 businesses across 180 countries—from NGOs like Amnesty International to global brands like Carrefour, eBay, Louis Vuitton, and Michelin—trust Brevo to engage their audiences, cut through complexity, and deliver results. Our reliable technology and 75+ integrations help them create unparalleled customer experiences, without the usual tech headaches.
In 2024, we reached €179M ARR with nearly 1,000 team members worldwide. And we’re just getting started!
Join us as a Senior ReactJS Developer and help shape engaging, scalable, and high-quality digital experiences for Brevo’s customers. You will work closely with product managers, designers, backend engineers, and other development teams to build intuitive, reliable, and maintainable frontend solutions. We are looking for someone passionate about React, who takes pride in writing elegant code, and is motivated by solving meaningful customer problems through thoughtful engineering.
Your impact at Brevo:
- Develop robust React applications from the ground up, leading complex modules with complete ownership and strong technical judgment.
- Design clean abstractions and reusable patterns, writing efficient and non-redundant code that adheres strictly to DRY principles.
- Drive application performance and responsiveness by continuously optimising rendering, bundle sizes, caching, and load speeds.
- Ensure production reliability through comprehensive testing strategies, including unit, integration, and component tests alongside continuous monitoring.
- Translate design and functional specifications into production-ready code using modern frontend toolchains and automation frameworks.
- Structure and scale monorepo workspaces with a strong focus on modularisation, versioning, and clean dependency management.
- Enhance build processes, deployment pipelines, and CI/CD workflows to ensure fast, smooth, and dependable releases.
- Collaborate effectively across teams, maintaining strong technical communication, shared accountability, and a delivery-driven mindset.
Who you are:
- 4+ years of hands-on experience in Reactjs, with strong expertise in React Hooks, state management patterns, and JS fundamentals.
- Proven experience in leading complex modules or features within large-scale web applications.
- Strong understanding of monorepos, including workspaces, module isolation, shared libraries, version control practices, and publish/release workflows.
- Deep proficiency in TypeScript, JavaScript, React architecture, design patterns, and performance optimisation techniques.
- Solid understanding of build systems and bundlers (Webpack, Vite, etc.) and experience working with CI/CD pipelines.
- Competent with testing frameworks (Jest, React Testing Library, etc.) and building reliable test suites.
- Strong problem-solving skills with the ability to break down complex requirements into modular, scalable solutions.
- Excellent communication skills, collaborative mindset, and a strong willingness to learn and adapt
Nice to Have
- Prior experience in a high-scale SaaS or B2B email/marketing technology
- Familiarity with AI tools and coding agents (e.g., Claude, GitHub Copilot, Cursor, or similar AI-assisted development workflows); strong integration of these tools into daily workflow is a plus
Our candidate journey:
- Round 1 - Technical Interview - Virtual (60mins)
- Round 2 - Technical Interview - Virtual (60 mins)
- Round 3 - BU Head Interview (in person, 60 mins)
- Round 4 - HR Round (30mins)
Why people love working at Brevo:
- A place to grow, together: Join a diverse, international team in a modern office buzzing with energy and ideas.
- Practical perks for everyday balance: Cab Facility and per-day meal vouchers; Employee-friendly salary structure; 1.4x pay on holidays/weekends for critical work; excellent referral program with high-value gift options (e.g., bike, flight tickets)
- Learning, every step of the way: Over 1,55,000 courses on Udemy, along with facilitator-led sessions, and personalised training programs tailored to individual and team needs
- Flexible for life: A hybrid setup (2 days WFH), budget for your home workspace, and a generous leave policy to help you balance life and work effortlessly
- A culture that cares: Annual company off-sites, inter-office trips, team outings, active social, green, and LGBTQIA+ communities, along with festive celebrations - all making Brevo a vibrant and inclusive workplace.
Whoever you are, wherever you’re from, if this role speaks to you, we’d love to hear from you.
At Brevo, we’re proud to be an AI-first company. Still, every application is carefully reviewed by a member of our team.
Skills
As published by lever · 15 questions · 4 written answers
Basics
Resume/CV, Full name, Email, Phone, Current location, Current company, LinkedIn URL, Twitter URL, GitHub URL, Portfolio URL, Other website
Short answers (6)
- How much experience in vanilla JS?
- How much experience in NextJS?
- How much experience in Reactjs?
- How much experience in Redux/Redux Toolkit?
- What are your salary expectations (fixed and variable) for this role - In yearly gross?
- Do you know any existing Brevo employee? If yes, please specify the name and relationship.
Pick from a list (5)
- Total years of experience?
- Are you comfortable with DS Algo?
- Has written Test cases using React Testing Library?
- Team members are expected to work from the office 3 days per week as part of Brevo's hybrid work model. Are you currently based in the listed location and able to work in person 3 days per week?
- What is your official Notice period?
Written answers (4)
- Have worked on optimising a react application?
- Have created react custom hooks?
- Have created a webpack setup from Scratch
- Have worked on reducing the bundle size of web applications?