Senior/Lead Software Engineer

Sievo; Helsinki; Hybrid; EUR 59,000 - 83,000; Full time

Job summary

Sievo is seeking an AI-native software engineer with a backend focus to join the Suppliers team in Helsinki. Depending on experience, you’ll join as a Senior or Lead Software Engineer.

In this role you’ll drive architectural decisions, build with agents across the SDLC, and help move toward agentic development, delivering end-to-end value in a cloud-native environment. You’ll collaborate with product management and other engineering teams and shape the platform that processes supplier data at

Qualifications

• Experience delivering backend software in cloud environments.
• Hands-on programming with .NET/C# preferred.
• Strong grasp of APIs, data storage, and integrations.
• Experience shaping platform architecture and technical direction.
• Familiarity with AI-assisted development tools is a plus.

Responsibilities

• Drive and own the technical architecture of the Supplier’s domain for scalability and reliability.
• Build with agents across the SDLC using AI coding tools.
• Collaborate with wider engineering teams, product management, and service design.
• Contribute to redefining software development approaches with agentic development.

Skills

Programming with .NET/C#

Cloud-native apps experience

SQL & NoSQL databases

Communication skills

Agentic AI experience

Product mindset

Tools

Claude Code

Codex

GitHub Copilot

Azure DevOps

Job description

We are looking for an AI-native software engineer with a focus on backend development to join our Suppliers team in Helsinki. Depending on your experience, we'll bring you in as a Senior or a Lead Software Engineer.

Being honest, we haven't got this all figured out yet. Agentic development at Sievo is still in an exploration phase: engineers and teams across the company are trying things, seeing what works, and management backs that exploration rather than dictating one way to do it. Some parts of our SDLC are already fully agent-driven; a lot of it still isn't. Where we want to get to is agentic development as the default: agents involved from spec through to production, with checks built in along the way. We're early in that shift, and in this role you will help us realize this ambition.

This role combines software engineering, quality engineering, solution design and end-to-end delivery through agentic AI systems, specification-driven development, and modern cloud-native practices.

About the team

The Suppliers team is the architectural backbone of Sievo’s data layer. We are on a mission to build the "Single Source of Truth" for global procurement intelligence, transforming fragmented, "messy" supplier data into a reliable foundation for the world’s largest enterprises.

Every month, we turn millions of raw vendors records into a clean, trustworthy view of who a company’s suppliers really are. Supplier parenting, i.e. matching vendor-level records to their parent companies, is the hardest and most visible part of that, but the domain is broader: data quality, matching at scale, enrichment, and the services other teams build on top.

In this role, your architectural decisions become the platform's defaults for teams building on top of Suppliers. You get to shape how we process spend equal to 2% of global GDP – a challenge that won’t let you get bored!

Teams at Sievo own their services end to end i.e. design, build, deploy and run in production. That ownership sits on shared platform foundations: common infrastructure, tooling and standards that we build and improve together, so teams spend their judgement on their domain rather than reinventing plumbing. We expect you to form strong opinions on where the platform should absorb complexity, and to advocate for them.

What you'll do

• Drive and own the technical architecture of Supplier’s domain to ensure scalability and reliability
• Build with agents as your default throughout SDLC using modern AI coding tools (e.g. Claude Code, Codex, GitHub Copilot, and emerging agentic tooling)
• Collaborate with wider engineering teams, product management, and service design
• Contribute to redefining software development ways of working, challenging the assumptions around agentic development
• At a Lead level, you will be responsible for the technical evolution of the supplier domain, influencing the work & decisions within the team and when required, cross team

Our current tech stack

• C# and .NET
• React, Typescript
• Azure storage services, Azure App Service, Azure Function, Service Bus, SQL and CosmosDB
• Microservices, Micro frontends, Infrastructure as Code, Azure DevOps

What we are looking for

• You’ve been actively driving AI engineering transition over the past 2-3 years in your team or organization. You know how to give an agent the missing context it can't get from the code itself, how to turn a vague ask into clear instructions it can follow, how to check its work when it's producing too much code to review line-by-line, and how to restructure the code and tools when they start slowing the agent down
• Solid experience in building cloud-native applications, APIs, and integrations
• Strong hands-on programming skills (ideally with .NET & C# but not mandatory)
• Strong skills in database (SQL & NoSQL)
• You have strong, hard-won opinions on how agentic development should work, backed by a real track record; and you're ready to set the direction for others, not follow it
• Product mindset and curiosity: you dig into customer use cases to understand the real problem being solved and why it matters, then translate that into something agents can execute
• Great communication skills and ability to collaborate with different stakeholders

What awaits you at Sievo

• We believe in autonomy that lets you choose the process & tech stack that best fits the product & the team. We support flat decision making and give employees trust to shape the work their way
• Career growth opportunities towards Lead -> Staff role or an Engineering Manager track
• One of the coolest offices in the heart of Helsinki — or if you prefer, a flexible hybrid working model. We also provide all essential tools to work remotely
• Freedom and responsibility. We are looking for people who yearn for this freedom, can make the most out of it, and are willing to take on the responsibility
• International team members coming from over 40 nationalities
• Awesome perks including equity program, extensive healthcare, phone plan, home internet connection, referral bonus, and many more!

We offer relocation support and a comprehensive package for exceptional candidates.

Our salary range for a Software Engineer is based on the job level:

• Senior Software Engineer 5300 – 6500 eur/month
• Lead Software Engineer 6200 – 7400 eur/month

We are open to discussing higher compensation for particularly senior profiles.

What’s next?

For more information about the role, contact Govind Bisht, Engineering Manager, at [e-mail].

Meet Sievo

We are Sievo – the leading procurement analytics SaaS company from Finland. We help the largest companies in the world, household brands like Levi’s, Kellogg’s and Mars, to generate cost savings, understand their procurement data, make data-driven decisions, reduce emissions, drive supply chain resilience, and beyond. Each year, we process spend equivalent to 2% of the global GDP. Pretty cool, right?

At the core of our success are talented people from all over the world with different backgrounds and perspectives. Our 400+ Sievonians are based across Helsinki, Chicago, Bucharest and London. Our core values are caring, exceeding, and honesty - values that make us grow bigger and better, not bigger and bitter.

At Sievo, we celebrate and support differences and strive to create a culture where everyone feels valued and included. As an Equal Opportunity Employer, we do not discriminate against any individual in hiring or employment based on gender, gender identity or expression, age, ethnic or national origin, nationality, language, religion or belief, opinion, disability, state of health, sexual orientation, or other personal reasons.

We acknowledge the impact of imposter syndrome during job search, especially for underrepresented groups. If you're interested in the position and believe that you have the potential to excel in it, we encourage you to apply.