
Flower · Stockholm
⚡️ What We Do Flower is Flexible Power. We are a next-gen energy company leveraging AI and machine learning to make renewable energy stable and always available...
⚡️ What We Do
Flower is Flexible Power. We are a next-gen energy company leveraging AI and machine learning to make renewable energy stable and
always available – even when the sun isn’t shining and the wind isn’t blowing.
Through smart optimization and trading of energy assets like wind and solar farms, battery systems, and EV chargers, we make
renewable energy reliable and predictable, leading the charge towards the energy system of tomorrow.
🌟Who We Are
Tech company at heart. Purpose-driven at core. 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.
To accelerate towards our goal of becoming the pioneering force powering the energy system of tomorrow, we are now looking for a
passionate and skilled Senior Data Scientist to join us!
As a Senior Data Scientist, you will shape the foundation of Flower’s short-term forecasting capabilities - powering the models
that directly drive our daily trading decisions. You will be part of a small, highly skilled team operating at the intersection of
data science, energy systems, and close-to-real-time market dynamics.
You will own the full lifecycle of your models - from idea to production - working closely with Data Engineers, Machine Learning
Engineers, and Energy Market Experts to ensure our forecasting stack runs smoothly and is continuously improving. This is a
hands-on role focussed on time-series modelling, rapid experimentation, and the ability to translate data into high-impact
operational decisions.
day-to-day basis
distill signals as features for your next model
supported by our team of DEs, MLEs & Energy Market Experts
Physics, or a related quantitative field
📍 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.
✉️ Apply
Our corporate language is English, as we have over 30 nationalities in the office. We therefore appreciate it if you could submit
your CV in English.
Throughout the recruitment process you will meet with the Talent Partner, Head of Predictions and Optimization, the Team, VP of
Engineering and VP of Product.
We look forward to hearing from you!
We kindly but firmly decline any engagement in recruitment assistance for our hiring processes. This includes partnership offers
or the sale of recruitment tools.
About Justera Group Justera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden. About the Role: We are seeking an experienced Senior Data Scientist with strong expertise in Linear Programming (LP) and Mixed Integer Programming (MIP) to develop, maintain, and scale production-grade optimization solutions. This role requires a solid foundation in optimization, analytics, statistics, and machine learning, along with the ability to build robust, production-ready data science solutions in a cloud environment. The ideal candidate is an experienced Python developer who writes clean, modular, and maintainable code, possesses strong SQL skills, and enjoys collaborating with cross-functional teams to solve complex business challenges. Key Responsibilities: * Maintain, optimize, and enhance existing optimization models by identifying opportunities for improvement and implementing scalable solutions. * Develop, deploy, monitor, and maintain production-grade optimization and machine learning solutions in a cloud environment. * Build and improve data preparation, transformation, and aggregation pipelines while integrating new data sources to enrich model performance. * Analyze model outputs and communicate insights and recommendations to business stakeholders. * Translate business requirements into technical solutions and maintain clear communication throughout the project lifecycle. * Collaborate closely with Data Scientists, Machine Learning Engineers, Product Managers, and other cross-functional stakeholders. * Implement and support MLOps best practices, including deployment, monitoring, automation, and model lifecycle management. * Perform ad hoc data analysis and create visualizations to support data-driven decision-making. * Ensure solution reliability, scalability, and operational efficiency through continuous monitoring and performance improvements. Requirements: * Strong experience with Discrete Optimization, including Linear Programming (LP), Integer Programming (IP), and Mixed Integer Programming (MIP). * Proven experience developing and deploying machine learning solutions in production cloud environments, preferably Google Cloud Platform (GCP). * Advanced Python programming skills with experience writing clean, modular, testable, and production-ready code. * Strong SQL skills for data manipulation, transformation, and analysis. * Hands-on experience with MLOps practices and CI/CD pipelines. * Experience building scalable data wrangling, transformation, and aggregation pipelines. * Familiarity with dbt for data transformation workflows. * Experience working in Agile, cross-functional environments. * Excellent analytical, problem-solving, and stakeholder communication skills. * Ability to thrive in complex, fast-paced, and evolving business environments. What We Offer: * A dynamic and innovative workplace driving advancements in cutting-edge robotic technologies * The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects * Competitive compensation and comprehensive benefits package * A supportive culture that fosters continuous learning, growth, and professional development * Flexible hybrid working model for an optimal work-life balance * 25 days of annual leave to recharge and relax * An annual wellness allowance of 3,500 SEK to support your health and wellbeing
OM BOLAGET Vår kund är ett snabbväxande AI-bolag i Stockholm som använder computer vision och maskininlärning för att revolutionera hur världens infrastruktur underhålls. Deras teknik analyserar och effektiviserar processer inom vägunderhåll – en bransch där det globalt läggs över 500 miljarder dollar årligen på reparationer. Med kunder i Norden, Europa och samarbeten med internationella organisationer växer bolaget snabbt. Bolaget är kassaflödesneutralt och självfinansierat med långsiktiga investerare. Här bygger du inte bara en produkt – du bygger något som gör verklig skillnad för samhällen runt om i världen. ---------------------------------------------------------------------------------------------------------------------------------- OM ROLLEN Vi söker en Senior Software Engineer med ledaregenskaper som vill äga backend, arkitektur och infrastruktur i ett litet, högpresterande team. Det här är en hands-on utvecklarroll där du får stort ägandeskap och frihet att forma både produkt och tech-stack. Du kommer jobba tätt med en data scientist och en frontendutvecklare, och vara den som tar lead på plattforms- och backend-utvecklingen. Du behöver inte förstå maskininlärning – men du ska kunna bygga robusta system som exponerar AI-modellernas resultat mot användare och kunder. ---------------------------------------------------------------------------------------------------------------------------------- VAD DU KOMMER GÖRA * Designa och utveckla backend-tjänster och API:er (Python/FastAPI) * Äga Infrastructure as Code (Terraform) och säkerställa skalbara deployments (Docker, Kubernetes, Helm) * Bygga bryggor mellan AI/CV-modeller och kundgränssnitt * Driva arkitekturbeslut och tekniska vägval * Mentorera och stötta teamet – vara den som sätter standard för kodkvalitet * Bidra till att bygga en skalbar plattform för internationell expansion ---------------------------------------------------------------------------------------------------------------------------------- VEM VI SÖKER Must-haves: * Erfarenhet av tungt backend-framework (Spring Boot, Django, C#/.NET, FastAPI, Symfony eller liknande) * Docker, Kubernetes och Helm * Terraform eller annan Infrastructure as Code * PostgreSQL / stark SQL-erfarenhet * Microservicearkitektur * Git och CI/CD * Svenska och engelska i tal och skrift * Personlighet: Självgående, tar ägarskap, stöttar andra, trivs med frihet under ansvar Meriterande: * Azure * PostGIS / GIS-databaser * Eventdriven arkitektur (AMQP, MQTT) * React / frontend-förståelse * AI, maskininlärning eller computer vision (nyfikenhet räcker) * Erfarenhet från startup/småbolag ---------------------------------------------------------------------------------------------------------------------------------- VAD VI ERBJUDER * Teknik som förbättrar infrastruktur globalt, inte "hållbarhetsprat" utan konkret skillnad * Stor frihet i att forma produkt och tech-stack, driva arkitekturbeslut * Litet team, stor påverkan, korta beslutsvägar, noll byråkrati, hög teknisk nivå * Internationellt bolag med kunder i Norden, Europa och samarbeten världen över * Konkurrenskraftig lön och möjlighet till equity/optioner efter provanställning * Office-first i centrala Stockholm (måndag–torsdag på kontoret, fredag flexibelt) ---------------------------------------------------------------------------------------------------------------------------------- PRAKTISK INFO * Plats: Stockholm (kontor i centrala stan) * Anställningsform: Tillsvidareanställning * Start: Så snart som möjligt * Lön: Marknadsenlig, anpassas efter erfarenhet * Språk: Svenska och engelska (krav) REKRYTERINGSPROCESS 1. Första samtal med Lynqa 2. Intervju med teamet – teknik och kultur 3. Fördjupad teknisk intervju 4. Referenstagning 5. Erbjudande OM ANSTÄLLNINGEN Omfattning: Heltid, tillsvidareanställning Start: Enligt överenskommelse Placering: Stockholm Detta är en direktrekrytering. Lynqa ansvarar för rekryteringsprocessen. OM LYNQA Lynqa är din karriärpartner inom tech. Vi arbetar med utvalda produktbolag och techteam i framkant – roller du sällan ser på vanliga jobbsajter. Hos oss får du snabb återkoppling, en personlig kontakt och tillgång till möjligheter innan de annonseras. Nyfiken på vad som finns? Hör av dig till mischell@lynqa.se Lynqa – we connect people
SAVR is a fast-growing Swedish fintech company on a mission to reinvent investing. We empower investors with a platform that offers lower fees, greater transparency, and a radically improved experience. We’re not just building another investment service — we’re reimagining how financial products should work for people, not just institutions. As part of our ambitious, innovative and curious team, you’ll help shape the future of investing in Sweden and beyond. THE ROLE As a Senior Platform Engineer at SAVR, you will be part of our tech organization helping build and evolve the next generation investment platform. Your primary focus will be on designing, improving and operating our cloud platform, enabling our engineering teams to build, deploy and run services efficiently and securely. While this role is centred around infrastructure and platform engineering, you'll occasionally contribute to backend services and integrations where it creates the most value. You'll collaborate closely with Software Engineers, Data Scientists, Product Designers and Product Managers to build scalable solutions and continuously improve our developer experience. Our infrastructure is built on AWS and managed through Terraform, with CI/CD powered by GitHub Actions, alongside some GCP and a handful of third-party services. Our services are built in Kotlin, PHP and Python and run on ECS, with data in Aurora, PostgreSQL and Snowflake. As we continue to grow, so does the need for a cloud platform that is reliable, secure, observable and enjoyable to build on—and that's where you come in. YOUR MISSION * Own and evolve our AWS platform, including networking, infrastructure as code, deployment pipelines, observability, backups, cloud governance and cost optimization. * Drive technical improvements across cloud architecture, CI/CD, automation, developer experience and operational tooling, reducing toil through smart tooling and abstractions. * Collaborate closely with engineering teams to build cloud-native solutions, integrations and infrastructure that enable product development. * Support backend teams with infrastructure expertise and occasionally contribute to application development when needed. * Monitor, troubleshoot and optimize cloud environments for performance, reliability, security and cost efficiency. * Foster our learning culture by actively participating in feedback sessions, both receiving and providing constructive feedback on code and infrastructure changes. YOU’LL THRIVE IN THIS ROLE IF YOU... * Are a Platform Engineer or Software Engineer with strong experience building and operating cloud platforms. * Have solid experience with AWS, Terraform, CI/CD, Docker, ECS and/or EKS, and observability tooling. * Have 5+ years of professional experience designing, building and operating cloud-based systems in production environments. * Enjoy working in a startup environment where you can take ownership, solve a wide range of technical challenges and collaborate across disciplines. * Care about automation, operational excellence and building reliable systems that scale. * Have some backend development experience and enjoy working closely with application engineers. * Are fluent in English and either hold Swedish citizenship or a valid EU work permit (visa sponsorship is unfortunately not available). OUR CULTURAL DNA 🧠 Open-minded – we embrace new ideas, diverse perspectives, and continuous learning 🚀 Bold – we take smart risks, move fast, and aren’t afraid to fail forward 🤝 Honest – we value transparency, feedback, and doing the right thing We’re a startup, so things can be a little messy — and that’s part of the thrill. If you thrive in building as a team and handling uncertainty, you will fit right in. WHAT’S IN IT FOR YOU You’ll join a product- and design-driven company where your work has real impact. We keep things lean, move fast, and genuinely care about the experience we deliver — for customers and for each other. Here’s what we offer: 💻 Top-tier work gear 💰 Competitive salary 🏃♀️ Generous wellness allowance 🤒 Insurance package 🌱 Occupational pension and long-term savings support 🏢 Office-first approach to foster collaboration and quick decision-making — with flexibility when you need it (4+1) 🥗 Stocked pantry, plus regular social gatherings and wellness activities to keep energy and culture high OUR COMMITMENT TO DIVERSITY SAVR is an equal opportunity employer. We welcome people from all backgrounds, identities, and experiences. We believe diverse teams build better products and are committed to creating an inclusive workplace where everyone can thrive. READY TO JOIN US? We’d love to hear from you. Apply now or reach out with any questions — and let’s build something meaningful together.