Senior Software Engineer, Observability

Cargurus

Who we are At CarGurus (NASDAQ: CARG), our mission is to give people the power to reach their destination. We started as a small team of developers determined to bring trust and transparency to car shopping. Since then, our history of innovation and go-to-market acceleration has driven industry-leading growth. In fact, we’re the largest and fastest-growing automotive marketplace, and we’ve been profitable for over 15 years. What we do The market is evolving, and we are too, moving the entire automotive journey online and guiding our customers through every step. That includes everything from the sale of an old car to the financing, purchase, and delivery of a new one. Today, tens of millions of consumers visit CarGurus.com each month, and ~30,000 dealerships use our products. But they're not the only ones who love CarGurus—our employees do, too. We have a people-first culture that fosters kindness, collaboration, and innovation, and empowers our Gurus with tools to fuel their career growth. Disrupting a trillion-dollar industry requires fresh and diverse perspectives. Come join us for the ride! Role overview Join our first Dublin engineering team! The International team is seeking a talented and driven Senior Software Development Engineer to join CarGurus' new Dublin office and work on exciting product initiatives for our Canadian and UK markets and play a key role in establishing the office’s culture.  In this role, you’ll be responsible for the full software development lifecycle – across both the frontend and backend – collaborating with Engineering and Product peers to design innovative solutions and tackle complex challenges for our dealer-facing products. We are looking for candidates who are able to learn and adapt quickly, and collaborate with other engineers to deliver solutions. Some examples of potential project opportunities: * Building new, full-stack features for dealer products from the ground up * Integrating with existing services and expanding functionality using React, TypeScript, and Java * Designing and implementing integrations with third-party APIs and partners * Modernizing and implementing current systems to leverage cloud technologies like AWS As an engineer on this team, you will drive projects from conception to completion, working closely with other engineers and product partners to deliver impactful solutions for the international business. No need to be a car expert—we’re more interested in your passion for engineering and your ability to innovate! What you'll do * Design, develop, and maintain scalable full-stack features and APIs using Java, React, and TypeScript that support our international dealer products. * Collaborate closely with product managers, designers, and other engineers across the organization to deliver and iterate on high-quality software solutions for our Canadian and UK markets. * Contribute to technical design discussions and architectural decisions. * Own services from ideation through deployment and ongoing maintenance in production environments. * Ensure systems are secure, maintainable, and highly available, following best practices in performance optimization and code quality. * Troubleshoot and resolve complex production issues, using observability tools to understand system health and performance. * Mentor junior engineers, provide high-quality code review guidance, and contribute to establishing the team processes and engineering standards for the new Dublin office. What you'll bring * 5+ years of experience in full-stack software development. * Deep expertise in Java (Spring Boot, Hibernate, or similar frameworks). * Solid, production-grade experience building dynamic, responsive user interfaces using React and TypeScript. * Experience designing and building RESTful APIs, microservices, and distributed systems. Experience with GraphQL. * Strong knowledge of databases (SQL and NoSQL), caching, and data structures. * Familiarity with cloud platforms such as AWS, GCP, or Azure, and some experience with containerization (Docker, Kubernetes). * Understanding of CI/CD pipelines, automated testing, monitoring, and production service management. * Excellent problem-solving, communication, and collaboration skills with the ability to move quickly and thrive in an iterative, fast-paced environment. * Eagerness to learn and expand your capabilities through leading and owning projects. * Bonus: Experience with server-side TypeScript (especially Remix, though Next.js or Express are also great additions). The displayed range represents the expected annual base salary / On-Target Earnings (OTE) for this position. On-Target Earnings (OTE) is inclusive of base salary and on-target commission earnings, which applies exclusively to sales roles. Individual pay within this range is determined by work location and other factors such as job-related skills, experience, and relevant education or training. This annual base salary forms part of a comprehensive Total Rewards Package. In addition to benefits, this role may qualify for discretionary bonuses/incentives and Restricted Stock Units (RSUs). Position Pay Range €78.000—€108.000 EUR Working at CarGurus We reward our Gurus’ curiosity and passion with best-in-class benefits and compensation, including equity for all employees, both when they start and as they continue to grow with us. Our career development and corporate giving programs, as well as our employee resource groups (ERGs) and communities, help people build connections while making an impact in personally meaningful ways. A flexible hybrid model and robust time off policies encourage work-life balance and individual well-being. Thoughtful perks like daily free lunch, a new car discount, meditation and fitness apps, commuting cost coverage, and more help our people create space for what matters most in their personal and professional lives. CarGurus may require in-person interviews as part of our hiring process, particularly for positions based in our Boston and Dublin offices. Candidates selected for an in-person interview will be notified in advance. Please be aware that travel expenses are the responsibility of the candidate. We welcome all CarGurus strives to be a place to which people can bring the ultimate expression of themselves and their potential—starting with our hiring process. We do not discriminate based on race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation. We foster an inclusive environment that values people for their skills, experiences, and unique perspectives. That’s why we hope you’ll apply even if you don’t check every box listed in the job description. We also encourage you to tell your recruiter if you require accommodations to participate in our hiring process due to a disability so we can provide the appropriate support. We want to know what only you can bring to CarGurus. #LI-Hybrid

Mongodb

We’re looking for a mid-level Software Engineer (Software Engineer 3) to join the Atlas Growth Platforms team, focused on enabling data-informed decision making and accelerating growth across MongoDB Atlas. This team is responsible for key infrastructure powering experimentation, service configuration, and partner integrations that shape the user experience and drive business impact at scale. In this role, you'll work primarily on backend services (80%), with opportunities to contribute to frontend systems (20%) that power our A/B testing platform, feature flagging service, analytics pipelines, and partner integrations. You'll collaborate closely with Product, Analytics, and other engineering teams to build and scale services that deliver targeted experiences and personalized recommendations for our users. You’ll also contribute to the evolution of our experimentation framework and play a role in shaping how we partner with external platforms to grow our ecosystem and reach new customers. We are looking to speak to candidates who are based in Dublin for our hybrid working model. RESPONSIBILITIES * Design, build, and maintain scalable backend services that power feature flagging, experimentation, and analytics infrastructure for MongoDB Atlas * Develop and evolve APIs, data models, and pipelines that support experimentation, personalization, and partner integrations * Contribute to components that enable internal teams to easily run experiments and analyze their impact * Improve observability, reliability, and performance across our systems, especially in the context of experimentation and service configuration at scale * Lead and participate in technical design discussions and code reviews, and mentor other engineers * Uphold engineering best practices and help drive a culture of quality, customer focus, and continuous learning * Participate in the 24/7 team on-call rotation up to once per quarter, responding to critical incidents and ensuring service reliability with support from team playbooks and escalation paths * Own our core values and leadership principles in all that you do BASIC QUALIFICATIONS * 3+ years of professional software engineering experience, including backend development with a compiled language such as Java or C# * Hands-on experience with modern JavaScript libraries and frameworks * Solid understanding of distributed systems and experience designing APIs and services in a microservice environment * Strong collaboration and communication skills; able to work cross-functionally with Product, Analytics, and other Engineering teams * Passion for continuous learning and writing clean, maintainable, well-tested code PREFERRED SKILLS * Experience with experimentation frameworks and A/B testing at scale * Familiarity with tools like Segment, Amplitude, or other analytics platforms * Experience deploying and operating services in Kubernetes * Prior work integrating with partner ecosystems or building external-facing public APIs * Contributions to shared infrastructure that enables internal teams to move faster or make better decisions SUCCESS MEASURES A Software Engineer 3 will be successful in this role when they: * Deliver backend features and services that are reliable, maintainable, and meet the needs of internal and external stakeholders * Successfully implement cross-functional initiatives, aligning with Product, Analytics, and other engineering teams to define requirements and deliver value * Occasionally lead small to mid-sized projects with the help of more senior engineers * Provide thoughtful code reviews, helping to raise the bar for engineering quality and collaboration * Continuously learn and adapt, bringing in new ideas and best practices that keep our team and systems evolving * Are willing to learn and contribute to all parts of the stack * Are resolute in their approach to problem solving, balancing the needs of their team with the willingness to get to the bottom of issues ABOUT MONGODB MongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries with software. MongoDB’s unified data platform, the most widely available, globally distributed data platform on the market, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud data platform and is available across AWS, Google Cloud, and Microsoft Azure. With offices worldwide and over 67,000 customers, including 75% of the Fortune 100 and AI-native startups, relying on MongoDB for their most important applications, we’re powering the next era of software. Our compass at MongoDB is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us MongoDB. To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world! MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter. MongoDB is an equal opportunities employer. Req ID: 2273449461

Contentful

ABOUT THE OPPORTUNITY Become part of the AI revolution at Contentful where we build real world AI solutions for thousands of active customers. At Contentful you will help imagine, drive, and build ML solutions which produce immediate customer impact by helping them get more done than they ever imagined. We are looking for an excellent Senior Software Engineer - Machine Learning (f/m/d) who understands and has experience in this field and current Generative AI trends. If you're passionate about pushing the boundaries of what's achievable with ML products on a large scale content management system, we want you on our team. WHAT TO EXPECT?  * Measure and ensure the high-quality output of ML workloads for our enterprise customers. * Design, build, and measure production software in the Contentful Platform. * Conduct focused research and testing using tools like Jupyter Notebook. * Optimize generative AI products for accuracy, speed, and scalability. * Integrate ML cloud solutions and adapt them to our large-scale use cases. * Integrate prompt engineering and fine-tuning for customer use cases. * Develop software that scales to meet the demands of high-load customer workloads. * Lead design reviews with peers and stakeholders to decide amongst available technologies. * Drive the ML education in the team and establish a high standard of quality & ownership WHAT YOU NEED TO BE SUCCESSFUL? * Proven experience as a technical leader in a product software development environment * Proven Track Record in Model Development, including successfully developing and deploying LLM-based models for various NLP tasks in real-world applications with production workloads * Proven ability to work backwards from customer needs to deliver ML-based features that meet those needs * Ability to organize and prioritize competing workloads * Familiarity with distributed systems and cloud services (e.g., AWS, Azure, GCP) * Solid understanding of machine learning principles * Experience with container frameworks such as Docker or Kubernetes * Constructive Problem-Solving: As a natural problem-solver, you bring forward ideas that lead to practical solutions and contribute to product growth. * Up-To-Date on The Latest Updates on LLM Development & Research: From RAGs to Open-Source models over Agent Architectures – you have an inherent drive to stay up-to-date on what is the latest and greatest Preferred: * Background includes machine learning and AI implementation * You can translate a research paper into a PoC if the code does not exist WHAT’S IN IT FOR YOU? * Join an ambitious tech company reshaping the way people build digital experiences * Full-time employees receive Stock Options for the opportunity to share in the success of our company * Fertility and family building benefits, including a lifetime reimbursable wallet to support your growing family. * We value Work-Life balance and You Time! A generous amount of paid time off, including vacation days, sick days,  education days, compassion days for loss, and volunteer days * Time off to care for and focus on your growing family  * Use your personal annual education budget to improve your skills and grow in your career * Enjoy a full range of virtual and in-person events, including workshops, guest speakers, and fun team activities, supporting learning and networking exchange beyond the usual work duties  * An annual wellbeing stipend to care for your physical, financial, or emotional health * A monthly communication phone/internet stipend and phone hardware upgrade reimbursement. * New hire office equipment stipend for hybrid or distributed employees. Get the gear you need to work at your best. WHO ARE WE? Contentful is a leading digital experience platform that helps modern businesses meet the growing demand for engaging, personalized content at scale. By blending composability with native AI capabilities, Contentful enables dynamic personalization, automated content delivery, and real-time experimentation, powering next-generation digital experiences across brands, regions, and channels for more than 4,200 organizations worldwide. More than 700 people from more than 70 nations contribute their energy and creativity to Contentful, working from hubs in Berlin, Denver, San Francisco, London, New York, and distributed worldwide. EVERYONE IS WELCOME HERE! “Everyone is welcome here” is a celebrated component of our culture. At Contentful, we strive to create an inclusive environment that empowers our employees. We believe that our products and services benefit from our diverse backgrounds and experiences, and we are proud to be an equal opportunity employer. All qualified applications will receive consideration for employment without regard to race, color, national origin, religion, sexual orientation, gender, gender identity, age, physical [dis]ability, or length of time spent unemployed. We invite you to apply and join us! If you need reasonable accommodations at any point during the application or interview process, please let your recruiting coordinator know. Please be aware of scammers who may fraudulently allege to be from Contentful. These types of fraud can be carried out through copycat websites, fake email addresses claiming to be from our company, or social media. We do not ask for your personal information, such as bank account numbers, identification numbers, etc, through social media or chat-based apps, nor do we request or send money for the purchase of business equipment. If you suspect fraud, please report it to your local authorities, as well as reach out to us at security-esk@contentful.com with any information you may have. By clicking “Apply for this job,” I acknowledge that I have read the “Contentful’s Candidate Privacy Notice” and hereby consent to the collection, processing, use, and storage of my personal information as described therein.