Senior Software Engineer (+SRE)

Tendium AB; Stockholms kommun; On-site; SEK 550,000 - 750,000; Full time

Job summary

Tendium AB is looking for a Senior Software Engineer to join their team in Stockholm. In this role, you'll work on backend services, building products, and setting Site Reliability Engineering (SRE) practices.

The ideal candidate should have hands-on experience with AWS, microservices, and API design, with a strong proficiency in Python. Be part of an innovative team focused on AI-driven solutions in public tender management.

Qualifications

• Hands-on experience with AWS or equivalent cloud services.
• Experience designing and maintaining APIs, including REST and GraphQL.
• Strong proficiency in Python, including writing robust and testable code.

Responsibilities

• Work on backend services as part of a data and platform team.
• Build internal tools and set SRE best practices.
• Define and track SLOs/SLIs and lead incident response.

Skills

AWS

Docker

GitHub Actions

Python

TypeScript

API design

Microservice architectures

Tools

CloudWatch

Datadog

Job description

Do you want to join the technological revolution? Tendium is looking for a Senior Software Engineer to join the 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

You will play a key role in our data and platform team, working on our backend services as well as setting up good SRE practices and guidelines. 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 across team. We are a small and tight tech team consisting 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.

Application

We look forward to your application. We will be on vacations in July, so expect to hear back from us in August. Successful candidates will initially be invited to an initial interview where you will have the opportunity to meet the team.

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 us shape the future together.