Principal Software Engineer

Job Description

We’re looking for a Principal Software Engineer to help define and build shared, API-first product platforms at AlphaSense that power multiple product surfaces, integrations, and agentic workflows. In this role, you’ll focus on building platforms as products: well-designed APIs, clear contracts, strong reliability guarantees, and a roadmap driven by real product needs. These platforms are consumed by internal product teams, external integrations, including AI agents. This role sits at the intersection of hands-on engineering and cross-product technical leadership.

Job Responsibility

Act as a technical owner and force multiplier for API-first architecture across the company
Design, build, and evolve high-scale APIs used by internal teams, external customers, and intelligent agents
Lead the development of agentic workflows, including orchestration, state management, tooling, and integration patterns
Drive API standards, design principles, and best practices through hands-on work and technical reviews
Tackle complex cross-team problems where requirements are ambiguous, and constraints are real
Partner with Product, Platform, and SRE teams to ensure APIs are reliable, observable, secure, and scalable
Identify and reduce systemic technical risks while enabling teams to move faster
Mentor senior engineers and raise the technical bar through example, not hierarchy

Requirements

Extensive experience as a senior staff/principal-level software engineer working on applications and backend systems
Experience building product platforms or shared services consumed by multiple product teams
Proven track record of designing, building, and operating APIs at scale
Strong hands-on experience with RESTful APIs
Some experience with GraphQL (design, usage, or operating in production)
Deep understanding of system design, performance, reliability, and evolution over time
Strong bias toward hands-on contribution and ownership of real systems
Ability to influence technical direction across teams through credibility and execution

Nice to have

Experience building or enabling agentic or AI-driven workflows
Familiarity with MCP (Model Context Protocol) or similar agent integration patterns
Experience working in large-scale, distributed systems environments
Exposure to API governance, versioning strategies, and backward compatibility at scale
Experience working closely with the platform and SRE teams

What we offer

Playing a part in the story of a fast growing company
Interesting career opportunities and training
Relocation support for single employees, couples and families
Flexible working arrangements
Private healthcare services from Terveystalo
2 weeks of vacation granted up front, and possibility to use vacation days as they accrue
Access to gym room, gaming room, free parking near the office, mobile phone, Lunch benefit, mobile plan, home internet, remote work equipment, and many more

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Principal Software Engineer - Product Platforms

Job Description

Job Responsibility

Requirements

Nice to have

What we offer

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