Senior Software Engineer (Autofills Coverage)

Bitwarden; New Delhi; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Bitwarden seeks a Senior Software Engineer to advance the Autofills capability, ensuring fast, reliable form filling across sites and browsers. You will work on dataset rules, automation, and benchmarking against real-world websites and maintain high code quality in a security-sensitive codebase.

You will collaborate across teams, mentor junior engineers, and apply AI-assisted development responsibly while improving performance and reliability of the autofill experience for individuals, teams,

Qualifications

• 5–9 years of building and operating production software.
• Strong in browser automation or front-end performance, with willingness to grow in the other area.
• Experience with automated testing, CI/CD pipelines, and observability tooling.

Responsibilities

• Own substantial pieces of work from design through production.
• Design browser automation that runs reliably against real websites.
• Build lab-based benchmarks to measure autofill performance and responsiveness.
• Maintain validation, versioning, and CI checks to ensure data quality.
• Collaborate with Autofill team, Product, Security, and SDET teammates.
• Mentor SDETs and newer engineers in a security-sensitive codebase.
• Use AI coding assistants effectively while applying human review.
• Triaga autofill defects and route issues with clear attribution.

Skills

TypeScript/JavaScript

Node.js

DOM/HTML/CSS selectors

Playwright/Puppeteer/Selenium/Cypress

CI/CD (GitHub Actions)

Shell scripting

Docker

JSON Schema

Datadog/Grafana/Prometheus

AI-assisted development ( Claude Code)

Tools

Playwright

Puppeteer

Selenium

Cypress

Chrome DevTools

Lighthouse

Job description

Bitwarden promotes better internet security and safety with the leading open source password management solution for individuals, teams, and business organizations. Our philosophy on security is that “we are all in this together” – we continue to offer a full-featured free version of Bitwarden so that everyone can be protected with strong password management. We also provide enterprise-grade solutions to some of the largest companies in the world, and will continue to innovate in the identity and authentication market as the world starts to grow beyond passwords. Read more on the Bitwarden blog.

As a Senior Software Engineer on the Autofills side of this team, yyou will help make autofill work reliably on the sites people actually use, and keep it fast and unobtrusive as theproduct evolves. Autofill is the Bitwarden capability that fills logins, payment details, andidentities into web forms across browsers. The Autofill Coverage team maintains andexpands a curated dataset of site-specific autofill rules, builds automation that continuously
checks autofill across popular websites, and builds lab-based measurement of autofill’sperformance in the browser. Every engineer on the team works across all of this, so wevalue curiosity and range over a perfect match to any single tool. This is a hands-on role.You will spend your time writing, reviewing, and shipping code, alongside your teammatesand in close partnership with the wider Autofill team.

WHAT YOU WILL DO

• End-to-End Delivery & Ownership: Own substantial pieces of the team’s work fromdesign through production: the site-specific rule dataset and its tooling, theautomation that continuously checks autofill on real websites and turns failures intofixes, and the benchmarking harness that measures autofill’s performance impactand responsiveness. Stay with your work once it is live.
• Automation at Scale: Design browser automation that runs reliably against real,constantly changing websites. Handle flakiness, dynamic content, and anti-botmeasures, and turn results into actionable signal rather than noise.
• Performance Measurement: Build and improve lab-based benchmarks thatmeasure how autofill affects page responsiveness, rendering, and memory. Treatmeasurement as engineering: control noise, question surprising numbers, and makesure a metric means what it claims before anyone acts on it.
• Engineering Standards and Automated Quality: Build and maintain the validation,versioning, and CI checks that catch bad data and misleading results before theyship. Review teammates’ pull requests with care and invite the same scrutiny of yourown. Keep documentation and contribution guidance in our open source repositoriesclear.
• Decoupled Architecture and Service Boundaries: Design the dataset so it canevolve independently of client release cycles, with backward compatibility acrosssupported client versions. Keep test and measurement tooling cleanly separatedfrom the product code it exercises.
• Technical Mentorship: Pair on hard problems, share what you learn, and helpSDETs and newer engineers find their footing in a security-sensitive codebase.
• AI-Assisted Development: Use AI coding assistants effectively in daily engineeringand exercise judgement about where they help and where they do not. Build assistive tooling that speeds up rule authoring, with a human always reviewing andapproving the result.
• Operational Stewardship: Triage autofill defects from support, internal reports,automated checks, and benchmarks. Fix what belongs to the team and route the restto the right owner with clear attribution.
• Cross-Functional Partnership & Collaboration: Partner closely with the Autofillteam, Product, Security, and SDET teammates to design and validate solutionsbefore implementation begins.

WHAT YOU BRING

• Overall Experience: 5–9 years building and operating production software, with atrack record of owning substantial, technically demanding work end to end as anindividual contributor.
• Technical Stack: We hire for strength and mindset, not an exact tool match. Youshould be strong in at least one of browser automation or front-end performance, andkeen to grow into the other.
• Expertise
  • TypeScript or JavaScript, and Node.js
  • The DOM, HTML forms, and CSS selectors, including how real-world pages diverge from spec
  • Browser automation with Playwright, Puppeteer, Selenium, or Cypress, or front-end performance analysis with Chrome DevTools, Lighthouse, and Core WebVitals
  • CI/CD with GitHub Actions or a similar platform
• Experience
  • Shell scripting and Docker
  • Data validation with JSON Schema or similar, and maintaining versioneddatasets or configuration
  • Reading performance data: percentiles, run-to-run variation, and telling a realregression from noise
  • Dashboards and alerting with Datadog, Grafana/Prometheus, New Relic, orsimilar
  • AI-assisted development, preferably Claude Code
• Familiarity
  • Browser internals such as rendering, garbage collection, the Chrome DevToolsProtocol, and Performance APIs (PerformanceObserver, Long Tasks, UserTiming)
  • Browser extension architecture (Manifest V3, content scripts, extensionmessaging)
  • Front-end frameworks and tooling such as Lit, React, RxJS, and webpack
• T-Shaped Engineering Mindset: Depth in one area and genuine range acrossothers. You ask why, not just what; you treat a flaky test or a surprising number assomething to understand rather than hide; and you pick up new tools quickly.
• Practical experience with containerized environments, automated test frameworks(unit, integration, and end-to-end), CI/CD pipelines, and observability tooling.
• Secure Coding: Familiarity with zero-trust and zero-knowledge securityarchitectures, encryption standards, and threat-modeling methodologies, and an understanding of why vetted, human-authored rules and heuristic-based autofill carry different security postures.
• Collaborative Spirit: A highly collaborative and adaptable mindset, excited to workin rapid, outcome-driven feedback loops.
• Open Source Passion: Excitement and enthusiasm for open source, developeradvocacy, and building a more secure internet.
• Problem-Solving: Excellent problem-solving skills, valuing written, cleardocumentation and using data to make technical decisions.

Why Join Us

This is an opportunity to play a foundational role in shaping our India Engineering COE from the ground up. Our user community loves us and we love them. Come to work each day with a sense of purpose as we bring a more secure internet experience to everyone from our friends and family to the world’s largest organizations.

Become an expert. You’ll get immersed in the prominent technology markets of security and open source software. You’ll work alongside talented global teams, solve meaningful engineering challenges, influence how we scale our engineering organization & contribute to products used by customers around the world.

If you’re passionate about building exceptional teams, enabling engineering excellence, and making a lasting impact within a fast-growing engineering company, we’d love to hear from you.

Equal Opportunity Employer

We are committed to fostering an inclusive workplace where everyone can do their best work. We welcome applicants from all backgrounds and make employment decisions based on skills, experience, qualifications, and business needs.