Junior Software Engineer (Backend, AI-Enabled)

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.

What You Will Do

• Develops backend services and APIs using Go or Python
• Writes clean, tested, and maintainable code with guidance from senior engineers
• Works with databases to design tables, write queries, and improve performance
• Uses AI coding tools in daily work, and reviews and corrects their output before shipping
• Troubleshoots issues and helps find their root cause
• Takes part in code reviews, both giving and receiving feedback
• Collaborates with teammates in English, in meetings and in written documentation
• Learns our systems step by step and takes on more ownership over time

What You Will Need

• Have 0–2 years of experience in software development (internships included)
• Have built at least one project with Go or Python
• Have built at least one end-to-end backend project (API, database, and tests)
• Have a basic understanding of SQL, Git, and Docker
• Have good English skills: you can read technical documentation and join team meetings in English
• Have used AI coding tools in real projects, and can spot their mistakes and guide them to better results
• Have a Bachelor’s degree in Computer Engineering or a related field (or be in your final year)
Nice to Have
• Have built a project using AI/ML tools such as LLM APIs or vector databases, and are familiar with concepts like embeddings, recommender systems, or model evaluation
• Have built a project with a modern frontend framework (Vue.js preferred, React or Next.js also welcome) and connected it to your own backend or API
• Are comfortable working across the stack: backend, frontend, and basic infrastructure (Docker, CI, deployment)

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.
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