Senior Software Engineer

Overview

At Synexus, we''re helping advertisers rethink how they show up in the news ecosystem. After a successful investment round, we are launching a new brand and product to the Ad tech market. Today, blunt keyword blocking causes brands to avoid entire news sites — even when the content is high-quality, balanced, and aligned with their values. It’s like tossing out a whole basket of fruit just because one apple has a bruise. Our technology changes that. Instead of just scanning keywords, Synexus analyzes how topics are being discussed. This allows advertisers to safely reintroduce premium journalism into their media plans — driving better reach, performance, and efficiency without added risk. We give brands smarter tools to control where their ads appear, unlocking underutilized, brand-safe inventory and improving campaign outcomes across the open web. At Synexus, you’ll be surrounded by people who want to improve everything and support everyone around them. Our team is passionate about our mission, are experts in their fields and are collaborative problem solvers. We model the following behaviors across the organisation: Bring positive energy; Collaborate; Focus on outcomes; Respect.Bring positive energyCollaborateFocus on outcomesRespectWe’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.Base pay range

$140,000.00/yr - $170,000.00/yrWhat We Offer

Competitive salary (see above)Health, dental, and vision benefits (US-based team only)Flexible working hours and remote options. Full-time, 1.0 FTE (37.5 hours per week). Being able to work on/overlap heavily with US Central time hours is essential.As a global organization, some flexibility for cross-time zone communication to be available for limited virtual meetings outside of office hours is required.Professional development opportunitiesA place to be your authentic selfWe are virtual by design to access a rich diversity of skills, expertise, experiences, and perspectives. Our commitment to neutrality is unwavering – across all of our work around the globe. Our employees are central to our mission and to our impact and we know that having varied perspectives helps generate better ideas to solve the complex challenges. We celebrate diversity and are committed to creating an inclusive environment for all employees.Key Responsibilities

Enhance and maintain our open web crawling system, solving edge cases such as paywalled or obfuscated content to ensure reliable and comprehensive data collectionBuild and optimize internal tools and infrastructure that empower data scientists and analysts to access and explore large-scale data with speed and minimal frictionSupport our transition from batch to real-time data processing, including the design and implementation of queue-based pipelines and event-driven architecturesDevelop and maintain data integrations with key demand-side platform (DSP) partners, ensuring reliable and secure data delivery at scaleWork across the stack as needed, whether improving backend performance, helping with API design, or optimizing data workflowsDevelop, improve, and contribute to core engineering practices such as code reviews, testing, observability, and CI/CD to help grow a robust, maintainable codebaseTake on a leading role in the team by mentoring more junior SWEs, shepherding projects from ideation to completion, and constantly improving processesEssential Experience And Behaviours

7+ years of experience building and maintaining production systemsSuccessful experience as a senior/lead engineer in teams before with demonstrated mentoring, project management, and technical leadership skillsExcellence in Python, with 5+ years of experience writing clean, maintainable, and well-tested codeDeep experience (3+ years) working with AWS services (e.g., EC2, S3, Lambda, CloudWatch, ECS/Fargate), with a focus on building reliable and scalable infrastructureExcellent understanding of relational databases, particularly PostgreSQL, and experience writing efficient queries and managing schema changesDeep experience with data pipelines or event-driven architectures, including tools like message queues (e.g., SQS, Kafka, or similar)Strong debugging and problem-solving skills, with the ability to navigate ambiguity and prioritize effectivelyDeep experience with CI/CD pipelines and version control systems, like Git, to ensure smooth development workflowsExcellent communication and collaboration abilities, to work effectively within a small, cross-functional teamExperience working as part of a remote/virtual teamExperience building or working with web crawlers, especially at scale or in complex environments (e.g. dynamic or paywalled content)Exposure to data engineering or supporting analytics workflows (e.g., building internal APIs, data tooling, or orchestration systems)Interest in or experience with ad tech ecosystems or API integrations with external partnersExperience using project and task management tools for agile development (e.g. Jira, Asana, etc.)Bachelor’s degree in Computer Science, Engineering, or a related fieldSuccessful experience working with team members across countries and time zonesComfortable working in rapid response and in on-call ..... full job details .....