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Principal Software Engineer - Product Platforms

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AlphaSense

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Location:
Finland , Helsinki

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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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

Additional Information:

Job Posted:
February 03, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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