Senior Software Engineer

Flower; Stockholms kommun; Hybrid; SEK 900,000 - 1,100,000; Full time

Job summary

Flower, a Sweden-based leader in battery storage, seeks a Senior Software Engineer to join our energy platform team. You will design and build scalable backend services, working with Go, AWS, IoT Core and data pipelines to improve energy flexibility and reliability.

You will collaborate with product managers, data scientists and engineers, lead code reviews, and drive best practices in security, performance and observability while operating in a hybrid office in Södermalm.

Qualifications

• 5+ years of experience as a Software Engineer, focusing on backend and distributed systems.
• Proficient in Go with designing scalable services and APIs.
• Hands-on with MQTT, Modbus, and IEC104.
• Familiar with AI development tools and practices as they evolve.
• Experience with CI/CD, IaC, and observability tooling like OpenTelemetry.
• Passionate about impactful projects contributing to a sustainable future.
• Strong communication and collaboration in a fast-paced environment.

Responsibilities

• Design, develop, and maintain robust and scalable software solutions for the energy platform.
• Work with Go, AWS, IoT Core and Databricks to improve energy flexibility and data processing pipelines.
• Build and optimize backend services and data pipelines, and manage a fleet of IoT devices.
• Collaborate with product managers, data scientists, and engineers across the organization.
• Lead code reviews, knowledge-sharing sessions, and mentoring other engineers.
• Contribute to a culture of continuous improvement and technical excellence.

Skills

Go

AWS

IoT Core

Databricks

MQTT

Modbus

IEC104

CI/CD

IaC

OpenTelemetry

Distributed systems

Backend development

APIs

AI tools

Job description

What We Do

Swiftly gaining ground as Sweden’s industry leader in battery storage and expanding rapidly in selected European markets, Flower is on a mission to enable the energy system of tomorrow. With an industry-leading AI-powered platform at its core, our service includes stabilizing the energy system by enhancing predictability and flexibility for both energy producers and consumers. By combining pioneering technology with a portfolio of flexible energy assets, we break new ground towards a fossil‑free energy system, allowing clean energy to power society.

Who We Are

Tech company at heart – purpose in our DNA. Flower consists of a diverse group of innovative individuals with a strong desire to improve the state of the world. At Flower, we believe trust, collaboration and diversity are essential to not only create an inclusive work environment, but also drive career growth. By embracing varying perspectives, we allow creativity and progress to flourish.

Senior Software Engineer

At Flower, we are now looking for a passionate and skilled Senior Software Engineer.

About The Role

As a Senior Software Engineer at Flower, you will be at the forefront of the energy transformation. You will work on systems that manage energy flexibility, integrating cutting‑edge software solutions to enhance efficiency and reliability. You will collaborate with a high‑performing, cross‑functional team and guide them on their path towards finding a solution. You will help ensure system reliability, security, and performance through best coding practices and architecture decisions.

What You’ll Do

• Design, develop, and maintain robust and scalable software solutions for our energy platform.
• Work with technologies such as Go, AWS, IoT Core and Databricks.
• Build and optimize high-performance backend services and data processing pipelines as well as a fleet of IoT devices.
• Collaborate closely with product managers, data scientists, and other engineers from across the organisation.
• Lead code reviews, knowledge-sharing sessions, and mentoring other engineers.
• Be an active part of the culture, with focus on continuous improvement and technical and operational excellence.

Who You Are

• You have 5+ years of experience as a Software Engineer, working with backend development and distributed systems.
• Proficient in Go, with experience in designing scalable services and APIs.
• Hands‑on experience with communication protocols such as MQTT, Modbus, and IEC104.
• Familiarity with AI development tools and practices as they evolve.
• Experience with modern DevOps principles such as CI/CD, IaC, and observability tooling like OpenTelemetry.
• Passionate about working on impactful projects that contribute to a sustainable future.
• Strong communication and collaboration skills, with an ability to work effectively in a fast‑paced environment.

Location

Our beautiful office is located in the heart of Södermalm, just a short walk from Slussen subway station. We encourage in‑office collaboration but support a hybrid work model.