About Toluna

At Toluna, we keep the world’s biggest brands one step ahead of their markets, their competitors, and their customers. For 25+ years we’ve been a leader in consumer insights, and today we’re at the center of our industry’s biggest shift: the move to AI-powered research grounded in real human truth.

Brands come to us because we’ve solved a problem most of our industry is still wrestling with: how to move fast without losing trust in the answer. Speed comes from AI we’ve been developing in-house since 2019, always-on platforms, and a 79M+ validated consumer community across 100+ countries.

Introduction:

As a Back-end Developer at Toluna, you will be responsible for designing, developing, testing, and supporting scalable Python-based backend services and web components that are part of our web-based products. You will work closely with cross-functional teams across multiple locations, take end-to-end ownership of backend components and APIs, and contribute to the practical use of AI-assisted development tools and LLM-powered workflows to improve engineering productivity and deliver smarter product capabilities.

Requirements:

• BSc/MSc in Computer Science and/or equivalent practical experience.
• Strong understanding of data structures, algorithms, and software design principles.
• Several years of Python experience in commercial or open-source software development.
• Experience developing and designing large-scale, scalable backend systems.
• Proven experience building scalable server-side architectures, APIs, and asynchronous services.
• Experience with cloud environments such as AWS, Azure, or GCP.
• Experience with CI/CD pipelines, serverless architectures, and modern backend deployment practices.
• Familiarity with AI-assisted development tools such as GitHub Copilot, OpenAI Codex, Cursor, Claude, or similar tools.
• Practical familiarity with LLM usage, including prompt design, working with LLM APIs, evaluating model outputs, and applying LLMs in development or product workflows.
• Experience working with remote teams in an agile environment.
• Strong communication skills, ownership mindset, and ability to collaborate across multiple teams.
• High level of English, written and verbal.

Nice to have:

• Experience with modern Python backend frameworks and tools such as FastAPI, Flask, Django, SQLAlchemy, Celery, or similar.
• Experience building production-grade LLM features, automation, internal tools, or developer productivity workflows.
• Familiarity with retrieval-augmented generation, embeddings, vector databases, agents, or LLM evaluation frameworks.
• Experience with data processing and serverless data integration platforms such as Spark, AWS Glue, or similar.
• Basic familiarity with frontend technologies such as JavaScript, React, HTML5, and CSS3.
• Experience working with distributed systems, message queues, event-driven architecture, or microservices.

Our Values:

Acting with Ownership: Demonstrating individual accountability

Bringing a Forward Mindset: Being action-oriented, bold & entrepreneurial

Collaborating with Curiosity: Exhibiting teamwork through togetherness

Discussing openly, committing jointly: Sharing your views openly

Embracing Empathy: Being egoless & caring

What we offer:

At Toluna, we’re all about creating a welcoming, diverse workplace where everyone can thrive. We offer competitive pay, great benefits, and plenty of opportunities to grow within our global team. Inclusion and respect are at the heart of what we do. Our community connects over 72 million people across 70 countries. If you’re passionate about making an impact, we’d love to have you on board.

Join our global team. We welcome big thinking and reward great work.