Before jumping in on all the information about the role and what you can bring to the table, let us introduce ourselves real quick.
About us
We are Insider, a B2B SaaS company that drives growth for its clients around the world. How are we achieving this? We are the #1 AI-native platform for Customer Experience and Marketing—offers marketers a single platform to deliver unique experiences per person, drive profitable growth, and unleash peak productivity and efficiency. Our platform connects data across channels, predicts future behavior with AI, and individualizes experiences from a single platform.
We have just celebrated our $500M Series E funding round, led by General Atlantic. Before this, we’ve unlocked unicorn status following our Series D round. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 1200+ brands from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Coca-Cola, Nike, L’Oreal, Singapore Airlines, Virgin, Nestle, Nissan, Lenovo, Puma, IKEA, Allianz, Dominos, CNN, and the list goes on.
Having unlocked unicorn status, Insider was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world, to achieve $200M in CARR (Committed Annual Recurring Revenue). Insider was named a leader in The Forrester Wave for Cross-Channel Campaign Management 2021, and Leader in the IDC MarketScape: Worldwide Omnichannel Marketing Platforms for B2C Enterprises 2023 Assessment. The company has been recognized in The Top 1% of all software companies worldwide in G2’s 2024 Software Awards, and named in The Top 10 Best Software Products with the most #1 rankings alongside other software legends like Google, Zoom, and Monday.com. According to G2’s Spring’24 reports. Insider is also the #1 G2 Leader in 6+ categories, including Customer Data Platforms (CDP), Personalization Engines, Personalization Software, Mobile Marketing, Customer Journey Analytics, and e-commerce Personalization.
When our team founded Insider, they not only sought to create a product company but also to build the most socially progressive technology community in the world. Through our corporate social responsibility initiatives like 100Projects SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact into our communities across 27+ countries, spearheading transformative projects in areas such as health, education, farming, animal rights, and increasing the proportional representation of women in STEM careers.
Behind all these achievements, there is an exceptionally talented and passionate team across 27+ countries that moves fast and agile, creates cutting-edge products, and focuses on making an impact. If you want to join us on this journey, just keep reading.
And now? Now we are looking for a Backend Software Engineer who wants to take their career one step further. If you think you are one of those people, here you will have the chance to work with the world's leading brands with Artificial Intelligence & Machine Learning technologies. Right now, while you are reading this, we are sending an average of 2.2 billion requests and almost 2 billion instant notifications to more than 450 servers a day. On the Artificial Intelligence and Predictive side, we have more than 100 TB of historical data. We do not wait for jobs or opportunities to come to our feet, we create them. We have now reached 25% of global users. If all these interests you, read on for more!
Our Engineers and Software Developers always think with an innovative perspective, taking advantage of the inexhaustible power of the digital world. They create impressive and intelligent products like a true artist. Our Product and Development teams are affiliated with our Istanbul office, so we produce and develop the technology we export to the world in our own country. As Insider, we believe in cooperation and adapting the innovations brought by technology by acting fast. We work closely with other Departments with agile teams, and we are not afraid of getting our hands dirty. As we said; we do not wait for jobs or opportunities to come to our feet, we create them ourselves. You can check our Tech Stacks here!
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What you'll be doing:- Design and maintain high-throughput, low-latency backend systems that process and serve massive amounts of data.
- Collaborate across teams to deliver scalable, reliable, and high-performance solutions used by thousands of enterprise customers worldwide.
- Solve complex technical challenges, from optimizing concurrency and synchronization to debugging distributed behaviors and improving system reliability.
- Monitor and optimize key performance metrics — including throughput, latency, and resource efficiency — ensuring our systems always perform beyond expectations.
- Continuously refine performance, recognizing that even small optimizations can have a massive impact when dealing with high-traffic environments.
- Communicate complex ideas clearly, breaking down intricate technical concepts for both technical and non-technical audiences.
At Insider, we build and maintain the distributed data backbone that powers our global marketing technology platform — processing billions of data points every single day in real time. You’ll take ownership of the core data services and APIs that sit at the heart of Insider’s infrastructure, ensuring they’re fast, reliable, and built to scale.
We're excited to work with you if:- You have 3–6 years of backend engineering experience, ideally with Go as your main language.
- You’ve built and operated distributed systems and understand the challenges of concurrency, synchronization, and data consistency.
- You care deeply about performance, reliability, and clean code — and you love making measurable improvements.
- You’re experienced with SQL databases (MySQL, PostgreSQL) and caching systems (Redis).
- You’ve worked with any messaging or queue system (e.g., NSQ, NATS, Kafka, RabbitMQ, or similar).
- You follow best practices across the development lifecycle — from design and reviews to testing and deployment.
- You’re fluent in English and communicate effectively in a global team setting.
Bonus Points If You Have
- Experience with ClickHouse or other analytical databases.
- Familiarity with real-time messaging systems like Kafka, Kinesis, or NATS.
- Hands-on experience with Kubernetes and AWS infrastructure.
- Interest in event-driven architectures, streaming pipelines, or gRPC-based communication.
- A passion for observability, monitoring, and debugging complex distributed systems.
While exporting our technology to the world, we offer you:- “Tech Talks” with famous and groundbreaking people from the software world, “Dev Talks” where our Software Developers talk about their career steps, and many events where groundbreaking ideas are discussed,
- Hackathons we organize inside that push the boundaries, programming challenges, and coding competitions,
- free access to exclusive services such as Laracasts, Egghead, LinkedIn Learning, Blinkist, Masterclass, and Spotify,
- Inclusive Private Health Insurance,
- Smart Work Model side benefits to support food and bill expenses,
- The infamous Team Activities that are bursting with fun,
- No Dress code! This is a fast and innovative startup, you can wear whatever you want.
- Remote Work! Work anywhere you'd like in Turkey.
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We provide equal opportunity in a zero-discrimination workplace and not just welcome but also embrace everyone without regard to sex, race, color, nationality, religion, gender identity, sexual orientation, disability status, citizenship, or marital status.
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