The Role
The Senior Software Engineer will develop backend services for analytics systems, manage large data stores, and work on high-throughput, low-latency systems while collaborating for performance improvements.
Summary Generated by Built In
Before jumping into all the information about the role and what you can bring to the table, let us introduce ourselves real quick.
About us
Insider One is the #1 platform that brings everything marketing and customer engagement teams need in one place so they can reach their peak potential and become unstoppable.
Our story began with six desks and a vision to create a single platform to make industry-first technologies and emerging channels accessible to marketers worldwide. Today, Insider One is powered by 1,500+ team members representing 50+ nationalities across 30+ offices. With AI at its core and an integrated Customer Data Platform (CDP), Insider One unites data, personalization, and journey orchestration across the most extensive set of natively supported channels, including WhatsApp, SMS, Email, Web, App, and Site Search.
We recently raised one of the largest funding rounds in the industry, a $500M Series E led by General Atlantic. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 2000+ customers from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, IKEA, Allianz, Domino's, and the list goes on.
Insider One was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world. Loved by customers, recognized by analysts, we are the only vendor recognized as the #1 leader in all the capabilities marketing and customer engagement teams need. Don’t just take our word for it — see for yourself. We consistently outperform and continue our leadership, and the results speak for themselves.
From day one, Insider One’s mission has not only been to build a world-class product company, but also to create one of the most socially progressive technology communities in the world. Through our social responsibility initiatives like 100 Social Responsibility Projects, AI Training for Teachers, Code Academy, SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact on our communities across 30+ countries, driving initiatives in health, education, farming, animal rights, and increasing women’s representation in STEM.
Behind all these achievements is an exceptionally talented, visionary team of overachievers that moves fast and agile, creating cutting-edge products, and focuses on making an impact. If you want to be a part of this journey, just keep reading.
And now? Now we are looking for a Senior Software Engineer, who will help our team create and implement a wide variety of web-based products using PHP and Go or Node.js, and 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 located in our Istanbul and Ankara offices, so we produce and develop the technology we export to the world in our own country. As Insider One, 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!
What You Will Do
- Build, scale, and maintain backend services that power Insider One’s core analytics systems, which process hundreds of thousands of events per second, manage terabytes of data, and serve real-time insights across 9+ global products.
- Maintain and evolve large-scale data stores, ensuring fast, reliable access to analytics data at massive scale.
- Work on high-throughput, low-latency systems used by both internal teams and customer-facing dashboards.
- Contribute to event ingestion pipelines, API development, data enrichment, and metric generation flows.
- Collaborate with backend and data engineers to continuously improve performance, reliability, and observability.
- Write clean, modular, and testable code using Go and Node.js, focusing on building systems that scale.
What You Will Need
- You have strong backend development experience with Go and/or Node.js and PHP Laravel.
- You enjoy working on data-heavy systems, especially where performance at scale is critical.
- You’ve worked with databases like PostgreSQL, Redis, or similar.
- You love building real-time systems and care about writing clean, maintainable backend code.
- You take initiative, communicate clearly, and don’t wait to be told what to fix—you go and fix it.
- Experience with ClickHouse, Kafka, Kinesis, or NATS.
- Experience with Vue.js.
- Familiarity with Kubernetes, AWS, and distributed architectures.
- Interest in event-driven design, streaming pipelines, or gRPC-based communication.
- A passion for debugging, optimizing, and monitoring complex systems.
Bonus points if you have:
What We Offer
- Enjoy a monthly meal allowance designed to enhance your daily routine.
- Access comprehensive private health insurance.
- Feed your curiosity with access to Spotify, LinkedIn Learning, Blinkist, MasterClass, Neoskola, and CloudGuru.
- Level up with internal trainings covering AI fundamentals, coding, foreign languages, and a wide range of personal development skills.
- Be part of a diverse team that’s as global as it gets, where every voice is heard and 50+ nationalities build together.
- Become a Shareowner through our eligibility-based “ESOP” and own a piece of what you build.
- Help build the team you want to work with and enjoy rewarding referral bonuses.
- Opportunities to give back to your community through volunteering and purpose-driven social impact projects.
- From global retreats to team-building activities, expect year-round events that turn into lifelong memories.
- Get inspired by the greatest minds in the tech industry through events like our Tech & Dev Talks.
- Work from anywhere in Turkey through our fully remote setup.
We aren't just hiring for a position; we are hiring for a mission — a mission to build a lasting legacy that will set the benchmark for the most progressive tech companies out there.
To do this, we are looking for exceptional talent to join a community of good-hearted individuals who take high ownership and are relentlessly driven to go the extra mile.
If this sounds like who you are and where you aspire to be, we are excited to meet you.
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.
Please follow Insider One on LinkedIn, Instagram, Youtube, and Medium!
Top Skills
AWS
Clickhouse
Go
Kafka
Kinesis
Kubernetes
Nats
Node.js
Postgres
Redis
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The Company
What We Do
Insider—one platform for individualized, cross-channel experiences—enables enterprise marketers to connect customer data across channels and systems, predict their future behavior with an AI intent engine and individualize customer experiences. Marketers use Insider’s platform to deliver experiences across channels like Web, App, Web Push, Email, SMS, and Messaging Apps (WhatsApp, Facebook Messenger, RCS).
Insider recently unlocked unicorn status and NASDAQ congratulated the company for becoming one of the few woman-founded, women-led B2B SaaS unicorns in the world. Insider was named as the #1 Leader in The Forrester Wave for Cross-Channel Campaign Management 2021 and Gartner Magic Quadrant for Personalization Engines 2021. The company has been named #1 Leader on G2’s Mobile Marketing Software and Personalization Grids with a 4.6/5 rating for 20 consecutive quarters. CrunchBase recently ranked Insider’s co-founder and CEO Hande Cilingir as one of the top women CEOs outside the US.
Many of the most prestigious Fortune 500 companies and top brands in retail, automotive, and travel use Insider to deliver AI-backed personalized experiences that exceed customer expectations. Insider is trusted by over 1,200 global businesses, including Singapore Airlines, Virgin, Toyota, New Balance, IKEA, GAP, L’Oreal, Samsung, Newsweek, MediaMarkt, Nissan, AVIS, Marks & Spencer, Allianz, Madeira Madeira, Santander, BBVA, Pizza Hut, Avon, and CNN.
