Principal Engineer, Web Platform Job at Intercom (Dublin)

Principal Engineer, Web Platform

As a Principal Web Platform Engineer at Marriott, you will be working on a state...

Location

United States , Bethesda

Salary:

118900.00 - 215300.00 USD / Year

Marriott Bonvoy

Expiration Date

June 22, 2026

Requirements

7+ years’ experience in software design and development with expert level expertise in multiple programming languages like JavaScript, TypeScript, NodeJS, Next.js, React.js
Experience using GraphQL and REST
5+ years experience with Java and Springboot microservices
Exposure to agentic GenAI development tools like Claude, ChatGPT or other tools
5+ years hands-on experience with application development
Experience in building enterprise scale web applications using micro front-end architecture
Experience in developing software using Front-end libraries/frameworks - primarily React
Strong knowledge in performance optimization techniques
Experience in using Jest, Jasmine, Mocha, and Junit

Job Responsibility

Develop and maintain Typescript libraries and platform tools for our React / Next.JS applications
Develop and maintain Microservices for NextJS renderers in Java SpringBoot
Collaborate with cross-functional teams to design and implement user-friendly features for all form factors
Optimize applications for maximum speed and scalability
Ensure the technical feasibility of UI/UX designs. Be ready to propose alternative solutions
Participate in code reviews to maintain code quality and consistency
Troubleshoot and debug issues as they arise
Stay up to date with the latest front-end technologies and best practices
Mentor and provide guidance to junior developers
Communicate effectively with team members, stakeholders, and clients

What we offer

401(k) plan
stock purchase plan
discounts at Marriott properties
commuter benefits
employee assistance plan
childcare discounts
medical
dental
vision
health care flexible spending account

Fulltime

!

Principal Engineer, Web Platform

Intercom’s websites, including intercom.com and fin.ai, are strategic growth lev...

Location

United Kingdom , London

Salary:

Not provided

Intercom

Expiration Date

Until further notice

Requirements

12+ years of software engineering experience
Experience in a high-scale growth-focused web environment
A track record of technical leadership and influencing technical direction across multiple teams or departments
Deep familiarity with modern web stacks and infrastructure
Strong understanding of data infrastructure, including event instrumentation, and analytics tooling
Comfortable working in and supporting full-stack codebases
Experience operating in continuous delivery environments with an emphasis on incremental, high-quality shipping
Exceptional communication skills and a history of collaborating with cross-functional teams (product, marketing, analytics, design, etc.)
A mentorship mindset — proven ability to raise the bar for engineering excellence across a team or organization

Job Responsibility

Own and evolve the architecture of Intercom’s web stack
Define the long-term technical strategy for the web team, focusing on scalability, performance, developer productivity, observability, and system reliability
Collaborate closely with marketing, design, analytics, and data science stakeholders to ensure the platform supports their goals with accuracy, performance, and agility
Lead and influence the design and implementation of MarTech systems for event tracking, attribution, funnel reporting, A/B testing infrastructure, and more
Partner with engineers across web, infrastructure, and data to create a high-quality, cohesive technical ecosystem
Mentor and elevate engineers across the team and organisation — providing guidance on architecture, data modeling, system design, and engineering best practices
Set the standard for technical excellence in reliability, maintainability, code quality, and operational readiness
Provide technical leadership and insight to Engineering Managers, Product Managers, and executive stakeholders — communicating risks, trade-offs, and opportunities clearly
Contribute hands-on to the codebase — leading by example and helping unblock and accelerate key projects

What we offer

Competitive salary and equity in a fast-growing start-up
We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
Regular compensation reviews - we reward great work
Pension scheme & match up to 4%
Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
Flexible paid time off policy
Paid maternity leave, as well as 6 weeks paternity leave for fathers
Cycle-to-Work Scheme
MacBooks are our standard, but we also offer Windows for certain roles when needed

Fulltime

Principal Software Engineer--Web data platform

We are looking for a talented and experienced Principal Software Engineer to joi...

Location

China , Beijing

Salary:

Not provided

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
7+ years of professional software development experience
Proficiency in at least one high-level programming language including but not limited to: C++, C#, Java, Golang or Rust
Good communication, collaboration and problem-solving skills
Fluent English speaking and writing
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter

Job Responsibility

Design the architecture of Crawler system, ensuring scalability, efficiency, performance and quality
Implement features in a distributed and scalable environment using data to guide and measure success
Develop and execute unit, integration, and performance tests to ensure the system is reliable, robust, and meets quality standards
Debug and mitigate incidents in live production environments
Stay up to date with the latest industry trends and technologies and proactively suggest improvements to the existing system
Collaborate closely with cross-functional teams, including product managers and other engineers, to align development goals with business objectives

Fulltime

Principal Software Engineer--Web data platform

We are looking for a highly motivated and experienced platform engineer to join ...

Location

China , Beijing

Salary:

Not provided

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
Solid foundation in distributed systems, concurrency, networking, and system design
Excellent communication, collaboration, and problem‑solving skills
Fluency in English (spoken and written)

Job Responsibility

Design and architect large‑scale distributed pipelines to ensure scalability, robustness, performance, and cost efficiency
Implement new features and system improvements in highly distributed, parallelized environments, using data to measure and validate impact
Develop and maintain comprehensive test coverage, including unit, integration, and performance tests, ensuring production-grade reliability
Debug, triage, and mitigate issues in live production environments handling massive data flows
Continuously improve the system architecture, proposing and driving enhancements based on industry best practices and emerging technologies
Collaborate cross‑functionally with engineers, PMs, and partner teams to align technical execution with business and product objectives
Contribute to engineering excellence, operational rigor, and incident‑free execution for mission‑critical pipelines that support Bing’s web data ecosystem

Fulltime

Principal Web Engineer, Marketing

Our website is our most important marketing asset — where pipeline starts, brand...

Location

Ireland , Dublin

Salary:

Not provided

Supermetrics

Expiration Date

Until further notice

Requirements

12+ years of web development experience, with 5+ years at senior/principal level in B2B SaaS
Deep expertise with Astro.js and Sanity (or Next.js + demonstrable Sanity depth)
Proven track record leading major website projects with strategic and organisational implications
Strong experience with A/B testing architecture, technical SEO, headless CMS, and the analytics/tracking layer
Ability to communicate technical trade-offs clearly to non-technical stakeholders
Practical, daily use of AI development tools (Cursor, Copilot, Claude, etc.)

Job Responsibility

End-to-end technical strategy for the marketing website — platform, architecture, and performance
Website builds and redesigns from requirements through launch
Conversion optimisation and experimentation infrastructure — enabling the growth team to move fast
The website data layer — event architecture and tracking standards that feed broader BI
Content infrastructure in Sanity — content models, reusable blocks, and COPE pipelines
AI strategy for the site — evaluating where personalisation, dynamic content, and intelligent search can move the needle
External partner management and build-vs-buy decisions

What we offer

Competitive compensation including equity
Home office allowance
Health care and leisure time insurance
€1,000 annual learning budget
Sports and wellbeing allowance

Fulltime

Principal Software Engineer, Web

The Walmart Emerging-Tech group is a group charted to drive the creation of the ...

Location

United States of America , Bentonville

Salary:

110000.00 - 220000.00 USD / Year

Walmart

Expiration Date

Until further notice

Requirements

Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.
Option 2: 7 years’ experience in software engineering or related area.
Ideally 12+ experience in software development, focusing on building Frontend Websites/Sharable Widgets.
Expertise in Javascript/TypeScript, frameworks such as React, Vue, Angular, and working with React Router and Redux.
Proficiency in API integration and development, Node.js, GQL
Advanced knowledge of complex software design, distributed system design, design patterns, data structures, and algorithms.
Excellent technical debugging and production support skills.
Familiarity with public cloud technologies such as Azure or Google Cloud Platform.
Extensive experience in the design, development, and delivery of software products with a large user base.
Excellent decision-making skills with the ability to balance conflicting interests in a complex and fast-paced environment.

Job Responsibility

Guide and mentor a team of engineers, conducting code reviews and leading design discussions to ensure engineering best practices.
Act as a technical authority, providing direction and expertise to the team.
Drive the adoption of coding standards, design patterns, and development best practices.
Lead the creation and maintenance of our technical architecture, aligning it with business goals and scalability requirements.
Architect complex software systems, ensuring performance, security, and scalability needs are met.
Consistently produce high-quality software with a focus on unit testing, functional testing, regular code reviews, and continuous integration.
Uphold high standards in quality and operational excellence.
Develop comprehensive technical documentation and presentations to clearly communicate architectural decisions and design options.
Ensure documentation aligns with project scopes, milestones, and deliverables.
Promote and enforce technical standards across the organization to achieve concrete outcomes and drive engineering excellence.

What we offer

Incentive awards for your performance
401(k) match
stock purchase plan
paid maternity and parental leave
PTO
multiple health plans
medical coverage
vision coverage
dental coverage
company-paid life insurance

Fulltime

Principal Engineer, Model Dev Platform

As the Principal Engineer for the Model Development Platform at Wayve, you will ...

Location

United States , Sunnyvale

Salary:

Not provided

Wayve

Expiration Date

Until further notice

Requirements

Technical Leadership at Scale – 10+ years of experience designing and building large-scale distributed systems, ML/AI infrastructure, full stack web application, or developer platforms, including at least 3 years as a staff or principal-level engineer
Architectural Depth & Breadth – Proven ability to design systems spanning web platforms, ML pipelines, and large-scale compute orchestration (e.g., Spark, Ray, Kubernetes, Airflow, MLflow)
Reliability & Performance Mindset – Experience driving platform reliability improvements, defining SLAs/SLOs, and building self-healing and observable systems that operate at “four nines” availability or better
Hands-On Systems Design – Deep understanding of distributed computing, workflow orchestration, data modeling, and API design, with the ability to write and review production-quality code
Collaborative Influence – Excellent communication and cross-functional collaboration skills
ability to guide engineers, managers, and researchers toward unified technical direction
Mentorship & Culture – Demonstrated success in mentoring engineers across levels and cultivating a culture of engineering excellence
Education – Bachelor’s degree in Computer Science, Software Engineering, or related field (advanced degree preferred, or equivalent experience)

Job Responsibility

Design and evolve the overarching architecture of the model development platform, ensuring system-wide reliability, observability, and scalability
Work across disciplines—from front-end web UIs to large-scale distributed training, from Spark-based data pipelines to experiment scheduling algorithms using linear optimization—to unify the platform’s architecture and ensure smooth interoperability between systems
Dive deep into the thorniest technical challenges faced by individual subteams, bringing your expertise in distributed systems, large-scale compute, and system design to bear
Develop and refine systems that optimize how models are tested—whether in simulation or on-road—balancing constraints like hardware availability, safety requirements, and research priorities
Architect data processing pipelines capable of ingesting, transforming, and enriching petabytes of sensor data from the global fleet
Serve as a mentor and coach for engineers across the organization—developing technical talent, improving design practices, and fostering a culture of learning and technical excellence
Partner with Product Management, Research, and Operations to align technical architecture with user needs and product vision

Principal Software Engineer, Financial Data Platform & GenSearch Agent

At AlphaSense, GenSearch is a production, customer-facing generative AI system d...

Location

United States

Salary:

246000.00 - 339000.00 USD / Year

AlphaSense

Expiration Date

Until further notice

Requirements

12+ years building and operating production systems
Experience operating at a Staff or Principal level
Proven ability to simplify complex systems and reduce architectural entropy
Strong background in distributed systems and performance optimization
Experience building AI-integrated systems (LLM orchestration, tool usage, retrieval, evaluation)
Comfortable working across backend systems and modern frontend frameworks (e.g., React)
Experienced designing APIs and durable service contracts
Effective at driving cross-team technical initiatives

Job Responsibility

Improve AI & Performance
Optimize orchestration between LLM workflows, structured datasets, and services
Introduce performance benchmarks, observability standards, and SLO discipline
Improve reliability and correctness of AI-backed financial responses
Simplify Architecture
Reduce fragmentation across datasets and services
Partner with data platform teams to define scalable dataset integration patterns
Remove legacy complexity while continuing to ship
Build & Evolve Web Products
Contribute directly to backend and frontend systems powering financial data experiences

Fulltime

Select Country

Principal Engineer, Web Platform

Job Description

Job Responsibility

Requirements

What we offer

Looking for more opportunities?

Principal Engineer, Web Platform

Principal Engineer, Web Platform

Principal Engineer, Web Platform

Principal Software Engineer--Web data platform

Principal Software Engineer--Web data platform

Principal Web Engineer, Marketing

Principal Software Engineer, Web

Principal Engineer, Model Dev Platform

Principal Software Engineer, Financial Data Platform & GenSearch Agent

Our AI answers in your language