Senior Software Engineer at Pactum AI

Pactum AI is pioneering AI-driven negotiation software for enterprise procurement. The company, founded in 2019, has secured over $100 million in funding (including a $54M Series C in June 2025) and serves 50+ major enterprises including Walmart and Rolls-Royce. Founded by luminaries from Skype, Starship Technologies, and the Government of Estonia's e-Residency program. Key Responsibilities: - Build foundational, large-scale systems for designing, managing, and monitoring complex AI agents - Write maintainable code with high test coverage (80%+) and implement CI/CD practices - Take full charge of problems, architect solutions, and guide work through deployment - Solve novel, previously unsolved technical challenges in the AI negotiation space - Collaborate with teams across multiple time zones in a distributed organization Requirements: - Solid experience with object-oriented programming languages - Strong communication and teamwork skills - Commitment to modern practices: Agile, Lean, TDD, SOLID, DDD, CI/CD - Customer-focused mindset with business impact awareness - Experience leading technical initiatives or complex projects - Fluent English; flexibility with non-traditional work hours Tech Stack: TypeScript/NodeJS, Kotlin, PostgreSQL, Google Cloud Platform, React Benefits: - Unlimited vacation time - Company equity - Competitive salary (benchmarked to industry standards) - Flexible schedule and remote work options - Learning and development support - Medical, dental, and vision coverage - Paid parental leave - Annual off-site retreats - Office setup stipend Pactum generally hires engineers into Estonia. In exceptional circumstances they consider supporting relocation or remote work in close timezones (Tallinn +/- 2 hours).