Mid Level Software Developer

Were quickly growing and super excited for you to join us!

About Topsort

At Topsort we believe in the mission of democratizing the secret technologies of the walled gardens and creating a privacy-first cookie-free world of clean advertising with modern tech friendly products and AI. We believe in making advertising intuitive intelligent and genuinely cool without any of the creepy ads or cookie-obsession (well maybe just the chocolate ones). In a rapidly changing industry were on a mission to democratize monetization access for all and ensure that advertising doesnt leave any brand or seller feeling confused or overwhelmed.

Today Topsort has 6 major hubs worldwide and employees in 13 countries including Menlo Park Boston Santiago Chile São Paulo Brazil Barcelona Spain and Sydney Australia. We are a truly global company that was born in the pandemic thats had rapid growth since out of a genius product a customer-first mentality and a hardworking team of talented individuals. Since our founding in 2021 weve gained customers in retail marketplaces and delivery apps in 40 countries and quickly approaching the #1 position in the industry.

Do you enjoy a fast-paced environment Do you like seeing your work create real-time impact being part of a rocket ship from the very beginning Lets do the unimaginable - lets make ads clean and cool again with AI and modern technology.

Why Topsort Why now

Topsort is changing the way Retail Media works. By joining our scaling team youll feel your impact from day 1. The processes and messaging you build today will be a critical part of our foundation as we accelerate toward 200 Topsorters worldwide and your innovations will leave a lasting mark on the industry as a whole. Retail Media is on the verge of a new era and Topsort is gathering the ecosystem together to shape a brighter future. Joining us now youll work directly alongside our co-founders and founding members to bring on Retail Media 3.0. If youre looking to define your career as something greater than yourself come scale with us.

What its like to work at Topsort

At Topsort we communicate openly and move fast. We say things as they are challenge each other early and embrace feedback with curiosityits how we build better faster. Every experiment has a purpose and every outcome helps us make the next decision smarter. Theres no single formula for success here; we find what works improve it and scale it.

Were collaborative internally and competitive externallynever the other way around. The pace is quick sometimes a 100-mph kind of fast and thats what keeps it exciting. We act with intent lift each other up and turn bold ideas into real results. No endless meetings hereif it can be done today it gets done today.

What is this role like

As a Mid Level Software Developer at Topsort you will build back-end services APIs and front-end experiences to support our mission: democratizing auction-based infrastructure for all marketplaces. Our first product is sponsored listings as a service. We automate and simplify auctions so that any advertiser especially small ones can compete successfully. Its not easy. We use our game and auction theory expertise; implement real-time scalable always-available systems; and build an intuitive easy-to-use UI for managing campaigns.

• Design develop and maintain scalable high-performance applications while ensuring code quality and best practices.
• Provide mentorship conduct code reviews and drive best engineering practices to improve team efficiency.
• Identify and resolve bottlenecks optimize system performance and ensure reliability in distributed architectures.
• Work with cross-functional teams translate business needs into technical solutions and drive innovation through new technologies and best practices.

What We Think You Need to Be Successful

Were open to candidates who dont check every box but show strong potential.

Core Requirements & Experience

• Bachelors or Masters degree in Computer Science Engineering or a related field.
• 2 years of experience in backend engineering designing developing and maintaining scalable services.
• Strong experience with microservices architecture and distributed systems ensuring efficiency and reliability.
• Proven track record of implementing engineering best practices improving development efficiency and maintaining high code quality.
• Proficiency in Python and TypeScript with a solid understanding of best practices patterns and performance optimization.
• Expertise in high-performance low-latency systems designing solutions that scale efficiently.
• Deep knowledge of distributed systems decoupling patterns and modern software architecture to build robust and maintainable services.
• Strong problem-solving and collaboration skills working closely with product and engineering teams to develop new features and optimize existing ones.
• Work onsite at one of our offices in Santiago or Sao Paulo 4 days a week.

Bonus Points

• Experience in B2B SaaS ad-tech martech or data platforms.
• Familiarity with retail marketplaces or media monetization.
• Fluency in additional languages beyond English.

What We Value

At Topsort we seek professionals who embody the following qualities to drive our mission forward:

• Deep dive into details:Professionals who are not content with superficial answers and dive deeply into the details to uncover root causes and optimal solutions.
• Team first:A low need for individual recognition always prioritizing collective results over personal credit.
• You thrive with ambiguity:Exceptional ability to tackle open-ended problems in unstructured environments turning chaos into structured innovation.
• Adaptability:Willingness to learn mentor lead and follow as the situation demands fostering growth at all levels.
• Urgency:A disproportionate sense of urgency in execution while keeping scalability and the creation of replicable processes in mind to ensure long-term success.
• Curiosity:Genuinely curious individuals who can quickly learn difficult concepts and apply them effectively.

Do you sound like the right fit Lets dive right in!