🚀 Senior mjukvaruutvecklare till växande konsultbolag i Stockholm

Humanit Stockholm AB

Älskar du att vara i flödet som utvecklare – och vill skapa förutsättningar för att andra ska kunna göra detsamma? Brinner du för att bygga moderna utvecklingsmiljöer med hög prestanda, bra integrationer och effektiva verktyg? Vi söker en Senior mjukvaruutvecklare som vill vara med och forma nästa generations infrastruktur och utvecklarupplevelse. Arbetsuppgifter: I rollen kommer du att arbeta med att utveckla och förbättra den tekniska plattformen som används. Fokus ligger på att skapa enhetliga, skalbara och effektiva utvecklingsverktyg som gör det enkelt att bygga, testa och leverera mjukvara i stor skala. Du kommer att bidra till både backend- och frontendutveckling, där Java, TypeScript och React står i centrum. Arbetet innefattar att utveckla och förvalta interna verktyg och applikationer som förenklar utvecklarnas vardag, förbättrar byggprocesser och automatiserar repetitiva moment. Kompetenskrav: Du har en stark passion för utvecklarproduktivitet och moderna utvecklingsverktyg. Du har djup erfarenhet av Java för backendutveckling och React/TypeScript för frontend. Du är van vid att arbeta med storskaliga kodbaser och har förståelse för bygg- och deployprocesser. Du trivs med att samarbeta i tvärfunktionella team och bidra till en kultur av delning och lärande. Du är en nyfiken problemlösare med fokus på kvalitet och långsiktighet. 💚 Humanit Humanit handlar om att göra saker lite annorlunda, att på riktigt sätta våra anställda i fokus. Vi växer tillsammans och värdesätter engagemang och ambition. För oss är det viktigt att du får chansen att vara med och påverka vägen framåt. I utbyte erbjuder vi kompetens- och karriärutveckling genom varierande och utmanande uppdrag. Vi är inte branschinriktade och kan därför erbjuda en fantastisk variation bland uppdragen för dig som konsult. Självklart ser vi till att du får rätt utbildning och vi är väl medvetna om att det är det livslånga lärandet som bygger vår framgång. Tillsammans skapar vi framtiden 🚀   Tillsvidareanställning med fast månadslön Kollektivavtal Vi tillämpar sex månaders provanställning, inklusive maxat friskvårdsbidrag Utvecklingsplan Hälsoförsäkring + pension Förskottssemester Start: Omgående med hänsyn till uppsägningstid och när säkerhetskontroll är genomförd. Uppdraget är på heltid och är tillsvidare. Plats: Stockholm Ansökan: Vi rekryterar löpande. Så skicka in din ansökan redan idag! Sveriges 7:e bästa arbetsplats 2026! Humanit arbetar tillsammans med Great Place To Work för att vi skall bli Sveriges bästa arbetsplats. Och förresten: Som en aktiv del i ett samhälle med kulturell och social mångfald är Humanit’s ambition att präglas av inkludering och bred representation, samt vara en arbetsplats med lika möjligheter för alla. Humanit anställer, bibehåller, befordrar och i övrigt behandlar alla medarbetare och kandidater efter erfarenhet, kvalifikationer och kompetens, oavsett kön, religion, ursprung, ålder, sexuell läggning, könsidentitet eller funktionsvariationer.

Zynca CRM AB

Zynca is building an ecosystem of recruiting and matching products, aiming to become the world's #1 choice for candidates and recruiters who are hungry for an 🔥 extraordinary product experience. While 🦕 other companies are releasing convoluted systems with broken features and frustrating interfaces, we are investing our hearts and souls into making sure that Zynca is taking care of everything for you, through smart automations and a world-class user experience that 🌟 simplifies every aspect of your work. In Q3 2026 Zynca will significantly scale up customer acquisition. To prepare for this, we're looking for the next person to take ownership of a core part of the company. 🚀 Senior Front-end Developer As our dedicated Senior Front-end Developer, you will own the frontend side of product flows, interface quality, component architecture, performance, accessibility and the details that make the product feel effortless to use. Rather than being a ticket-taking role, it's a strategic product-building role for someone who wants to shape how Zynca looks, feels and works as we scale. 🎯 The right fit We believe that the right fit for this role has owned frontend work in product-heavy environments before, probably in SaaS, marketplaces, platforms, HR tech, recruitment tech or another digital product where user flows, interface quality and performance matter. You understand how to turn product ideas and design decisions into fast, polished and maintainable user interfaces. You are strong in React, Next.js and TypeScript, comfortable working with APIs, design systems, accessibility, responsive layouts and the small frontend details that make a product feel clear and easy to use. You are senior enough to take responsibility for frontend architecture and technical decisions, but hands-on enough to build components, fix edge cases, improve flows, review details, ship features and make sure the experience holds together in production. You like working close to product and design, and you care about whether the product actually makes the user’s work easier. 💡 About the role What you'll be doing: Own the frontend area across Zynca’s product ecosystem Build and improve user flows, interfaces and reusable components Work closely with product, business and backend to ship features from concept to production Integrate frontend applications with APIs and GraphQL Improve performance, accessibility, responsiveness and overall interface quality Maintain and evolve our design system and component architecture Identify weak spots in the product experience and improve them before users have to complain Tech stack: React 19 - Latest React with server components, hooks, concurrent features Next.js 15 - App Router, server/client components, middleware, Turbopack TypeScript 5 - Strong typing, generics, utility types GraphQL - Apollo Client, queries/mutations, caching strategies, codegen Tailwind CSS 4 - Utility-first styling, tailwind-merge, tailwind-variants React Hook Form + Zod - Form handling with schema validation Design System - Mix of shadcn/radix and custom UI library 🥳 Company culture You will join a senior, hands-on company where people are expected to think, challenge, take responsibility and move things forward without waiting for permission. We work closely across product, sales and customer work. Feedback is direct, decisions are made quickly, and everyone is expected to care about the full customer experience, not just their own area. 🎉 Interested? Does this sound like the right role for you? If so, don't hesitate to apply! We'd love to hear from you! Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.

Tibber

We're at a pivotal moment for both Tibber and the planet. When joining Tibber, you won’t just help scale a forward-thinking tech company – you’ll contribute to a real shift in how people consume electricity. With millions of smart devices connected to the Tibber platform (like electric vehicles and smart thermostats), we have one of the most unique energy trading portfolios on the market. We’re looking for a Senior Data Scientist to join us in making the energy transition happen – maybe that’s you? ---------------------------------------------------------------------------------------------------------------------------------- Job Mission 🚀 As a Senior Data Scientist, you will help accelerate Data Science at Tibber by bridging the gap between advanced data science and robust production systems. You'll play a key role in building predictive data models that increase our metric of savings per kWh. ---------------------------------------------------------------------------------------------------------------------------------- What you'll do ✅ * Lead the ML platform build. Own the direction of our ML infrastructure: model registries, versioning, monitoring, drift detection and automated retraining, and take it from good to great. This is the core of the role, especially in your first year. * Ship models that move the metric. Develop and deploy forecasting, optimization and personalization models that plug straight into live products like Smart Charging and dynamic pricing. * Strengthen the impact chain. We evaluate every data science service against clear goals. You'll help us take the next step: connecting model quality all the way to realized savings per kWh, through counterfactual evaluation and decision-quality metrics. * Raise the bar with your peers. Review code, sharpen best practices and shape how a senior team works with LLM and agentic AI tools, as colleagues not students. * Own end-to-end delivery. Drive the full lifecycle from problem framing and data sourcing to production deployment and continuous improvement. ---------------------------------------------------------------------------------------------------------------------------------- What we're looking for⚡ You are driven by impact, enjoy fast-paced environments, and thrive when given autonomy. You've built an ML platform before and know how to go beyond models that work in a notebook to a system a team can trust. We believe you'll be a great fit if you: * Have a proven track record of developing production-grade ML platforms with drift detection, model registries and CI/CD workflows, and can point to teams that shipped faster because of what you built. * Possess deep technical skills in Python and hands-on experience with cloud ML infrastructure like Databricks MLflow, AWS SageMaker or an equivalent. * Bring deep expertise in at least one ML domain we run in production: time-series forecasting, optimization algorithms or personalization at scale. * Think in platforms, not patches: you build repeatable workflows and you know how to onboard a team of experienced peers into them. * Handle ambiguity well and communicate complex data concepts clearly to product and engineering stakeholders. * Embrace LLM and agentic AI tools as part of how modern data science gets done. * Bonus: experience with energy time-series data, smart charging or grid optimization. ---------------------------------------------------------------------------------------------------------------------------------- 💆🏻‍♀️💆🏽‍♂️The Tibber Mindset Tibber exists to drive energy independence - away from fossil dependency. Our tech helps hundreds of thousands of households shift their electricity consumption to more sustainable and affordable hours - from electric vehicles to smart thermostats, all connected to the Tibber platform. We strengthen the resilience of the grid. Not in theory. In everyday life. We win, fail, and grow together, staying curious and pushing for better every day. AI is shaping how we work - and we're on a journey to make it central to everything we do. The further we go, the more our Tibberinos matter - and yes, that's what we call ourselves! Started by two founders in 2016. Now 300+ Tibberinos across Stockholm, Oslo, Berlin, Amsterdam, and Førde. And we're still just getting started. You're welcome at Tibber for who you are. We hire for what you can do and how you think - not your background or where you've been. Diverse teams build better products, and we mean that.