At a Glance
- Tasks: Enhance web crawling systems and build tools for data scientists in a dynamic ad tech environment.
- Company: Join Synexus, a forward-thinking ad tech company based in London.
- Benefits: Enjoy a competitive salary, flexible hours, and professional development opportunities.
- Other info: Be part of a diverse team committed to equality and belonging.
- Why this job: Make an impact in the ad tech space while working with cutting-edge technologies.
- Qualifications: 7+ years in software engineering with strong Python and AWS skills.
The predicted salary is between 63000 - 77000 £ per year.
Synexus is seeking a Senior Software Engineer to join our data‑driven ad tech team located in London, England.
- Base pay range
- About Synexus
At Synexus, we help advertisers rethink how they show up in the news ecosystem.
Our new brand leverages topic‑based analysis to enable premium journalism in media plans, driving better reach, performance, and efficiency.
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 collection.
- Build and optimize internal tools and infrastructure that empower data scientists and analysts to access and explore large‑scale data with speed and minimal friction.
- Support our transition from batch to real‑time data processing, including the design and implementation of queue‑based pipelines and event‑driven architectures.
- Develop and maintain data integrations with key demand‑side platform (DSP) partners, ensuring reliable and secure data delivery at scale.
- Work across the stack as needed, whether improving backend performance, helping with API design, or optimizing data workflows.
- Contribute to core engineering practices such as code reviews, testing, observability, and CI/CD to help grow a robust, maintainable codebase.
- Mentor junior engineers, shepherd projects from ideation to completion, and constantly improve processes.
Essential Experience and Behaviors
- 7+ years of experience building and maintaining production systems.
- Successful experience as a senior/lead engineer with demonstrated mentoring, project management, and technical leadership skills.
- Excellent Python skills with 5+ years of clean, maintainable, well‑tested code.
- Deep experience with AWS services (EC2, S3, Lambda, Cloud Watch, ECS/Fargate) focused on building reliable, scalable infrastructure.
- Strong understanding of relational databases, particularly Postgre SQL, and experience writing efficient queries and managing schema changes.
- Deep experience with data pipelines or event‑driven architectures, including message queue tools such as SQS, Kafka, or similar.
- Excellent debugging and problem‑solving skills, navigating ambiguity and prioritizing effectively.
- Deep experience with CI/CD pipelines, version control such as Git, ensuring smooth development workflows.
- Excellent communication and collaboration abilities within a small, cross‑functional team.
- Remote or virtual team experience and ability to work across time zones.
Desirable Experience and Behaviors
- Experience building or working with web crawlers at scale.
- Exposure to data engineering or analytics workflows.
- Interest or experience with ad tech ecosystems or external partner integrations.
- Experience using agile project‑management tools (Jira, Asana).
- Bachelor’s degree in Computer Science, Engineering, or related field.
- Comfortable with on‑call rotations and rapid response.
What 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 hrs per week). Work overlapping US Central hours required.
- Professional development opportunities.
- Diverse and inclusive workplace committed to equality and belonging.
- Location
London, England, United Kingdom.
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Senior Software Engineer employer: Synexus
At Synexus, we pride ourselves on being an exceptional employer, offering a dynamic and inclusive work culture that fosters innovation and collaboration. Our London-based team enjoys competitive salaries, flexible working hours, and ample opportunities for professional development, all while contributing to meaningful projects that reshape the advertising landscape. Join us to be part of a diverse environment where your skills are valued, and you can grow alongside talented professionals in the ad tech industry.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Synexus or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Synexus.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Synexus.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Synexus that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Software Engineer
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Synexus.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Synexus and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Synexus
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Synexus uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
