Senior Software Platform Engineer
Do you want to join the technological revolution? Tendium is looking for a Senior Software Engineer to join the Platform team.
About Tendium
Tendium is the global pioneer in AI-driven public tender management, transforming how companies discover, analyze, and win government contracts. Our platform turns complex processes into something simple and transparent, empowering businesses to compete fairly for billions in public sector opportunities. We’ve been building our AI-native platform since 2018, leveraging a vast data moat, agentic AI, and tens of thousands of hours of R&D. Today, we serve large numbers of customers across Europe and are rapidly scaling.
If you’re ready to make an impact and grow with us, we want to hear from you.
What you'll do
Our Platform team has a broad and exciting ownership. As a member of our Platform team you will build foundational services that all our features need, security and developer experience as well as being in the forefront of AI development. You will make sure that we have the AI tooling we need to build with both speed and quality, and that our platform is secure and easy to monitor and work with. This is a role where you will spend time on building our product and internal tools as well as building SRE guidelines and best practices cross-team. The whole tech organisation consists of approximately 20 engineers split into different teams, where everyone knows each other.
Tech stack
Microservice Architecture: Fargate, Lambda, SQS, EventBridge, GraphQL, OpenAPI
Databases and Querying: DocumentDB (MongoDB), MySQL, S3Tables (Iceberg), OpenSearch, Athena
Languages: Python, TypeScript
Infrastructure and platform: CDK, Github Actions
Observability and tooling: CloudWatch, Aikido, PostHog
AI Tooling: Claude Code, Internal MCP Server
What you'll bring:
Infrastructure and platform: Hands-on experience with AWS (or equivalent cloud). Containerization (Docker), Infrastructure as Code (CDK or Terraform), and CI/CD pipeline design and maintenance (GitHub Actions).
Site reliability and operations: Experience defining and tracking SLOs/SLIs, leading incident response, and writing postmortems. Comfortable structuring production-grade environments — multi-environment setups, security and access standards — and turning that knowledge into guidelines other teams can adopt.
Cloud micro services: Hands-on experience building and maintaining micro service architectures using AWS services such as SQS, Lambda, Fargate/ECS (or close equivalents in another cloud).
API design and development: Hands-on experience designing and maintaining APIs, including REST (OpenAPI) and GraphQL, with a focus on consistency, versioning, and developer experience.
Observability & Reliability: Setting up and using monitoring/alerting tools (Datadog, Grafana, Aikido). Log aggregation and distributed tracing (OpenTelemetry, CloudWatch)
Software engineering: Strong proficiency in Python (or similar), including writing robust, testable, and maintainable code; familiarity with async programming patterns.
AI Tooling: Integrates AI tooling effectively into daily workflows.
Collaboration and communication: You enjoy collaborating both with your nearest team and with other teams. You are comfortable sharing knowledge and best practices.
Based in Stockholm, within commuting distance from our office in central Stockholm.
We offer hybrid flexibility while requiring the ability to commute daily to our Stockholm office.
Application
We work from the office the majority of the time and require the ability to commute daily to our Stockholm office.
Please note: At the moment we are not able to sponsor VISA applications, so you need to have the right to work in Sweden.
We look forward to your application. We recruit on an ongoing basis, so apply as soon as possible.To make this process even more efficient, feel free to sign in to your Connect profile and add your references at any stage.
Please find additional information on our recruitment process here.
If you want to know more about our culture and what you can expect when working at Tendium you can read more about it here.
Equality and inclusion statement
At Tendium, we don’t just value diversity, we celebrate it. We’re building a workplace where everyone should feel that they belong, where your voice is heard, and your experiences are respected. Different perspectives fuel our creativity and drive innovation, and we’re always looking for people who can bring something new to the team. Whoever you are, wherever you're from, we’d love to hear from you. Let’s shape the future together.