Full-stack Engineer

• Build and iterate the Pricing API behind RED, tem's modern utility product
• Ensure pricing systems are fast, correct, reliable and ready for third-party access
• Lead extraction of pricing logic into a dedicated service with clean boundaries
• Decide when the new pricing service is stable enough to cut over
• Design detection, alerting and explainability systems for bad or slow prices
• Improve pricing speed for every customer quote
• Raise engineering standards through design reviews, pairing and multi-agent workflows
• Handle live pricing incidents and turn lessons into structural roadmap fixes
• Price real energy contracts for businesses buying electricity and renewable generators selling it

Staff Engineer – Pricing

• Take business problems from stakeholders, determine what matters, and define clear requirements and outcomes
• Own delivery of an agreed business problem in partnership with the CTO and business owner
• Decide what to build, reuse, change, cut, or delay, escalating material cost or risk decisions
• Build and operate full-stack systems across database, backend, and UI
• Develop customer-facing features, internal tools, and automation
• Test and roll out safely with monitoring and risk-appropriate recovery paths
• Protect access and customer data
• Drive adoption, document systems, and agree ongoing ownership
• Define success metrics and baselines, measure results, and report impact honestly
• Use AI tools daily, validate their output, and manage LLM failure modes when applicable
• Collaborate directly with non-technical business areas and engineering peers
• Report directly to the CTO

Senior Product Engineer

• Build and ship production systems as a core engineer
• Work on advanced systems involving NLP, firmographic data, entity resolution, and related technologies
• Solve problems involving large and performant data pipelines, distributed systems, machine learning models, and robust infrastructure
• Collaborate with full-stack, data, ML, and DevOps engineers
• Build scalable and reliable backend solutions
• Drive projects to completion and contribute to the company’s technology and business impact

Full Stack Engineer

• Participate in a client team building innovative products
• Design scalable, resilient, and fault-tolerant architectures
• Build and deliver digital solutions that provide long-term value
• Build and maintain APIs and backend services, including SaaS platforms
• Work with cloud environments and modern infrastructure
• Apply modern deployment practices using Docker, containers, and Kubernetes
• Implement testing strategies, including TDD, across the full system lifecycle
• Optimize system performance
• Use AI tools to augment engineering work where they add genuine value
• Collaborate in a fast-paced, team-oriented engineering environment
• Complete interviews with a Talent Partner, Senior Developers, and Client Partner

Contract Golang Software Engineer

• Design and develop interfaces for SaaS products, including components, pages, interactions, and complex states
• Focus on user experience and perceived front-end performance
• Own the server-side logic integrated into Next.js, including Server Actions, API Routes, data access, third-party integrations, and authentication
• Handle complex business logic, particularly around credits, job pooling, and API delays
• Use AI throughout design, coding, testing, debugging, and documentation
• Deliver complete, tested, and usable features within announced timelines
• Contribute to the product roadmap and recommend trade-offs
• Participate in technical and product decisions
• Maintain smooth communication with the remote team
• Work across multiple SaaS products according to priorities

Full-Stack Developer, Next.js – Front-End Focus

• Build and evolve Darkplane, primarily using TypeScript/Node.js, with Go across control-plane and analytics services
• Design and harden systems for running untrusted code and safely helping customers adopt AI in the software development lifecycle
• Partner with AI engineers to make agentic workflows reliable and fast in production
• Shape developer experience through workflows, feedback loops, and guardrails for trustworthy AI-authored code
• Talk to customers, understand agentic-workflow adoption, and make product decisions based on customer needs and business considerations
• Co-own stability by identifying technical risks early and maintaining strong observability signals
• Contribute to backend and platform engineering, including ingest pipelines, evaluation runtime, and data model
• Help turn agentic engineering concepts into dependable product capabilities

Senior Product Engineer, Darkplane – Agentic Platform

• Own the product UI/UX while working directly with the founder
• Build and ship SvelteKit applications end to end, including routing, load functions, server-side rendering, form actions, and client-side state management
• Write strictly typed component-level TypeScript
• Implement responsive and accessible UI with Tailwind CSS, including custom design systems and component variants
• Build and expose REST or RPC endpoints in Fastify with schema-based request validation, error handling, and authentication middleware
• Design Postgres tables, write and roll back migrations, and write raw SQL or use Drizzle, Kysely, or Prisma for non-trivial queries
• Own frontend performance, including bundle size, hydration cost, load waterfalls, and Core Web Vitals
• Set up or maintain CI/CD for a Node.js/SvelteKit application: build, lint, type-check, and deploy
• Debug production issues across the full stack without handing off to a backend specialist
• Shape a pre-launch startup from zero alongside the founder

Founding Full-Stack Engineer

• Understand and frame user and product problems
• Lead significant technical deliveries within the squad from problem definition through production operation
• Design, implement, test, and operate reliable, scalable, user-focused products
• Investigate and resolve complex production issues using monitoring, observability, and data analysis tools
• Identify performance, scalability, and reliability opportunities and implement technical improvements
• Become autonomous on high-impact initiatives within a few weeks when joining a new team
• Improve engineering practices through code reviews, pair programming, documentation, RFCs, and AI-assisted development
• Mentor engineers, share knowledge, provide actionable feedback, and improve team technical skills
• Collaborate with other teams and communicate progress, risks, decisions, and results
• Contribute to the tech community through technical content, onboarding, interviews, incident resolution, tech initiatives, and meetups

Senior Backend Software Engineer, Ruby on Rails

• Design, build, and maintain production-grade control plane microservices, custom Kubernetes operators, and reconciliation engines in Rust and Go
• Author functional and non-functional requirements, architectural specifications, system sequence diagrams, and gRPC/Protobuf and REST API schemas
• Develop integrations for modern network operating systems including SONiC, NVUE, and Cumulus, plus DPU hardware platforms
• Instrument services with OpenTelemetry traces and metrics
• Perform root-cause analysis across polyglot distributed systems
• Participate in review-gated pull request workflows across Rust, Go, and SQL codebases
• Ensure high test coverage through mock-driven testing
• Drive development of control planes for high-density, high-throughput AI training and inference infrastructure
• Contribute to open-source projects
• Participate in design reviews, cross-domain code reviews, and on-call coverage

Full-stack Engineer jobs in Europe