Full Stack Developer

Strategic Staffing Solutions International’s client FlexShape is a Danish EnergyTech company with a development office in Vilnius. The company develops software solutions for automated energy planning, portfolio optimization, and trading of energy and ancillary services.

All of the company’s solutions are based on FlexShape’s own software platform, Aggregator-as-a-Service. This platform combines near real-time stream processing with advanced energy forecasting, aggregation, and optimization techniques based on Big Data, Industrial IoT, and Machine learning/AI.

As a Senior Full-stack Developer, you will have the opportunity to empower the European electricity landscape, boost renewable power, and reduce dependence on fossil fuels to pioneer a greener energy frontier.

Your code can change the world – let's power up together!

This is your opportunity to play a crucial role in building a microservice-based platform that integrates electrical assets such as batteries, wind and solar parks, and EVs, enabling the trading of energy and flexibility of these assets across various markets.

• Develop backend (main focus) and frontend components for dealing with energy assets and markets.
• Improve platform's usability and overall user experience.
• Create agents that facilitate automated energy and flexibility trading.
• Implement client-specific requirements, adapt and enhance the platform.
• Upgrade development and deployment environments, and refine workflows.
• Provide the ongoing maintenance of the operational platform instances, ensuring their smooth functionality.

For a PERFECT match, you need:

• 3+ years (Mid-level) to 5+ years (Senior-level) of experience in developing full-stack applications.
• Knowledge of Vue.js, React.js, Typescript, or JavaScript tooling (e.g., PNPM, NX, Vite, Rollup) and component frameworks (e.g., Vuetify, Quasar)
• Strong knowledge of object-oriented and functional programming languages (Scala, Java, Kotlin, or C#) and key principles
• Experience in using version control systems (primarily Git)
• Experience with Docker, Kubernetes, and CI/CD pipelines
• Strong written and spoken English skills (at least B2 level)

What additional skills will make you stand out:

• Experience developing mobile, web, and/or single-page applications (SPA)
• Experience with CQRS, reactive streams, microservice architectures
• Experience integrating systems using 3rd-party APIs (e.g., OpenAPI/Swagger, Google Protocol Buffers (Protobuf), gRPC, etc.)
• Prior experience with Scrum workflow

The company offers:

• Competitive salary: 5800-7500 EUR gross depending on your skillset and experience.
• Hybrid work mode.
• Ability to work with state-of-the-art smart and renewable energy technologies, including batteries, solar panels, wind turbines, and electric vehicle charging stations.
• Opportunity to make the European electricity grid more robust with high shares of renewables (wind, solar, energy storage) and less dependency on gas and fossil fuels.
• Opportunity to collaborate with leading European electricity utilities, well-established energy and ancillary service markets (including NordPool), and other electricity market players.
• Ability to work with a modern, reactive, microservice-based platform using Scala in the backend, Vue.js, Typescript in the front end, and Python for optimization problem-solving.
• Ability to work in a highly qualified, close-knit, and high-performing team.

Additional perks:

• 25 paid vacation days per year.
• Free parking
• Health insurance
• New Office space in the Core business Centre
• Gym amenities are free for all employees at Core Business Centre