
ARLK AB · Stockholm
Filed is building the first AI tax preparer trusted by America’s accounting firms. This industry might seem boring—but it’s a $70B backbone of the economy that...
Filed is building the first AI tax preparer trusted by America’s accounting firms.
This industry might seem boring—but it’s a $70B backbone of the economy that’s breaking under a talent shortage no one has solved.
We’re fixing it—fast.
In just 9 months, we’ve hit strong product-market fit, are generating insanely fast-growing, ridiculously sticky revenue, and are
backed by top-tier investors. We’re not a tool—we’re the missing workforce firms have been sounding the alarm for. We’re building
the future by expanding our already 30-person team with those who want to say “I was there when it all started.”
Read more → TechCrunch
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We're looking for a Fullstack AI Engineer who moves fast and thrives in high-velocity environments. You're the kind of person who
sees a product gap, understands the root cause quickly, and ships a working feature in hours or days, not weeks. You love turning
complex workflows into clean, intuitive interfaces, and you don't wait for a perfect spec to get started.
You're a builder who's just as comfortable designing React UIs and TypeScript APIs as you are wiring up Python backends or
deploying to Google Cloud or Azure. You sweat the details, but never let them block momentum.
At Filed, engineering means more than owning the code. You own the outcome. You ship a feature, watch how CPAs use it, look at the
metrics, and decide what the next version should be. Just you and your team, the data, and the user.
As one of our core engineering hires, you'll help shape how tax professionals experience AI-assisted work end to end. You'll work
closely with the AI, tax, and product teams — and most importantly, our users — to rethink what great AI native software can feel
like.
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in the right direction.
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1. We operate on six levels, from Level 1 to Level 6. Each reflects increasing ownership, impact, and scope with meaningful jumps
in salary and equity.
2. We review levels every 4 months. Promotions are based on output and ownership, not tenure.
3. This isn't a comfortable CRUD role. It's fast, focused, and customer-obsessed.
4. You will launch fast. You will learn fast. You will own what you ship.
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In just 3.5 hours, you’ll be wanting early access - just like the rest of our team - to get into the stack and start building a
generational company, even before your first day. Because you’ll see the opportunity to change your career trajectory - fast.
Do you want to join the technological revolution? Tendium is looking for a Fullstack AI Engineer to join our team. ABOUT TENDIUM Tendium is the global pioneer in AI-driven public tender management, transforming how companies discover, analyse, and win government contracts. Our platform turns complex processes into something simple and transparent, empowering businesses to compete fairly for billions in public sector opportunities. We’ve been building our AI-native platform since 2018, leveraging a vast data moat, agentic AI, and tens of thousands of hours of R&D. Today, we serve large numbers of customers across Europe and are rapidly scaling. If you’re ready to make an impact and grow with us, we want to hear from you. WHAT YOU'LL DO As a fullstack engineer, you are comfortable working across the whole stack, building intuitive user experiences as well as backend services and some dev-ops. You will build state-of-the-art solutions using modern LLMs and agentic technologies, applying them directly to real product challenges. You’ll take ownership from understanding the problem to deploying and refining features that create meaningful value for users. You’ll work closely with product, design, and engineering to shape what we build. This includes rapid prototyping, exploring current LLM and agentic methods, and turning them into reliable, production-ready systems, both in backend and frontend. We release early and iterate based on real usage. This role suits someone who enjoys combining strong engineering skills with modern AI methods and who wants to push the boundaries of what our software can do. You will: * Work across the tech stack together with your team mates. You are probably more passionate about either frontend or backend but comfortable working in both. * Deeply understand our users and the challenges of navigating complex procurement data. * Design, build, and refine AI systems, from prompt-driven models to multi-step agent flows. * Own features end to end: discovery, modeling, evaluation, deployment, and iteration. * Integrate AI outputs into product features that users trust and rely on. * Collaborate with product and design to explore what AI should accomplish for procurement teams. * Balance rapid experimentation with building scalable, maintainable AI systems. WHAT YOU'LL BRING: * A product mindset and the ability to choose the right approach by understanding the problem first. * Strong engineering fundamentals, with the ability to work effortlessly across the stack. * Experience or very eager to learn how to design agentic workflows, retrieval-augmented systems, or evaluation pipelines. * Comfortable with ambiguity and the ability to turn fuzzy problems into clear, workable solutions. * Based in Stockholm, within commuting distance from our office in central Stockholm. * Fluent in English. OUR TECH STACK: * TypeScript, React, Node.js, Python GraphQL * PostgreSQL, Opensearch, Athena * AWS * Microservice Architecture: Fargate, Lambda, SQS, EventBridge, GraphQL, OpenAPI * AI Tooling: Claude Code, Internal MCP Server HOW WE WORK We’re agile but not dogmatic. We ship minimum viable products, iterate based on real feedback, and aim for quality without overengineering. Great ideas come from anywhere, and you’ll influence not just what we build, but how we work. Culture at Tendium We move fast, stay curious, and take ownership. We’re a tight-knit team with a shared drive to fix how public procurement works, and we’re just getting started. Our culture is built on trust, collaboration, and learning. You’ll have real responsibility from day one, supported by teammates who challenge you, help you grow, and want to build something meaningful together. We’re Stockholm-based with a hybrid setup, and we make time to connect through regular afterworks, team activities, and the kind of informal conversations that make work feel human. We hire for talent, potential, and attitude. Different perspectives make the product better, and we’re building a team that reflects that. If you want to build products that actually matter to the people who use them, let’s talk. APPLICATION We will be on vacations in July and will get back to you in August. We look forward to your application. Please note: At the moment we are not able to sponsor VISA applications, so you need to have the right to work in Sweden. To make this process even more efficient, feel free to sign in to your Connect profile and add your references at any stage. Please find additional information on our recruitment process here. If you want to know more about our culture and what you can expect when working at Tendium you can read more about it here. Equality and inclusion statement At Tendium, we don’t just value diversity, we celebrate it. We’re building a workplace where everyone should feel that they belong, where your voice is heard, and your experiences are respected. Different perspectives fuel our creativity and drive innovation, and we’re always looking for people who can bring something new to the team. Whoever you are, wherever you're from, we’d love to hear from you. Let’s shape the future together.
Vår kund utvecklar portföljhantering och rapporteringssystem för banker och finansinstitut i Norden. Det handlar om mjukvara där datakvalitet, säkerhet och prestanda inte är önskemål utan krav. Bolaget befinner sig i en skalningsfas och satsar hårt på AI för att förändra hur de bygger och driftar mjukvara. Här skriver du produktionskod som faktiskt används, i ett team på ~10+ ingenjörer som tar engineering på allvar: säkerhetstestat, ISO27001-certifierat och med direktkontakt till slutkund. Om rollen Vi söker en fullstack-utvecklare med AI engineering-fokus till deras kontor i Stockholm. Du bygger features tvärs igenom backend och frontend, och använder AI-verktyg för att göra teamet snabbare och bättre på att leverera. Det här är en hands-on roll. Du skriver produktionskod, bygger riktiga features och applicerar AI där det gör faktisk skillnad – inte för att det ser bra ut i en pitch. Vad du jobbar med Bygga och underhålla features i backend och frontend Utveckla AI-assisterade workflows för utveckling, test och drift Arbeta med microservice-arkitektur, särskilt prestandakritiska rapporteringstjänster Bidra till API-design och integrationer med bankpartners Samarbeta tvärs över Backend, Frontend, Platform och QA Tech Stack Backend: Java, TypeScript, MongoDB, PostgreSQL, Kafka, event-driven arkitektur Frontend: Angular SPA Infra: Kubernetes, ArgoCD, Helm, GitHub Actions AI: AI-assisterade utvecklingsverktyg (Claude Code, Codex m.fl.) Övrigt: Swagger/OpenAPI, Liquibase, feature flags Kvalifikationer Skallkrav: 3+ års fullstack-erfarenhet med produktionssystem Stark Java och backend-kompetens Hands-on erfarenhet med AI engineering-verktyg (Claude Code, Codex eller liknande) Förståelse för event-driven arkitektur och relationsdatabaser Bekväm i reglerad domän där korrekthet är avgörande Erfarenhet av eller starkt intresse för autonoma agenter och AI-assisterade dev workflows Meriterande: Erfarenhet från fintech eller finansbranschen Kubernetes och cloud-native deployment Microservice-arkitektur Erfarenhet med AI agent-ramverk Som person Du levererar fungerande mjukvara, inte prototyper. Du är pragmatisk kring AI – vet när det hjälper och när det bara lägger till komplexitet. Du trivs med att lösa problem längs vägen, samarbetar naturligt med andra och fångar problem tidigt istället för i produktion. Varför den här rollen? En nyckelroll i att forma hur AI används inom engineering Direkt påverkan på en plattform som servar banker och family offices Ett team som tar engineering på allvar: säkerhetstestat, ISO27001, kvalitetsfokus Stockholm-baserat Rekryteringsprocess Första samtal med Lynqa Intervju med teamet – teknik och kultur Fördjupad teknisk intervju Referenstagning 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
Do you want to be part of one of Sweden's fastest-growing start-ups? Antrino Labs is a vision infrastructure company. We build AI architectures that let cameras understand actions, behavior, and context across time — moving video beyond surveillance into real-time, programmable sensing. Instead of cameras just recording video in the background, they can now perform tasks in real-time: detecting theft, identifying security risks, analyzing flows in stores and industries, and enabling organizations to act immediately when something happens. Video goes from being something reviewed in retrospect to becoming active, real-time decision support. This means that millions of existing cameras, which previously only functioned as passive sensors, can suddenly start working actively for businesses – from retail and logistics to security companies and public environments. Everything is built on a foundation of Privacy by Design, where data protection and GDPR compliance are central parts of the architecture. The goal is to make advanced video analysis both powerful, scalable, and responsible in how data is handled. We just closed our Seed Investment Round which was announced together with Dagens Industri and are scaling up to meet demand. Also, the company is certified through Institution för Strategiska Produkter which makes the company a strategic asset for the Kingdom. Purpose and Goal We are looking for exceptional Fullstack Engineers who want to be part of our journey in automating detection. In this role, you will work across both frontend and backend systems, building the core product experience that allows users to connect cameras, deploy intelligence, and interact with real-time insights from video streams. The role is broad and hands-on, where you will work closely with our engineering team and leadership to develop a scalable, high-performance platform that can support thousands of live video streams and global deployments. You will help shape both the user-facing interfaces and the underlying backend systems, ensuring the platform remains intuitive, fast, and reliable as we expand. Your main areas of responsibility will include: Designing, developing, and maintaining both frontend and backend components of our platform Building user-facing features and interfaces that allow customers to interact with video streams, analytics, and system insights Developing and maintaining scalable backend services and APIs that power the platform Collaborating closely with designers and engineers to create intuitive, high-performance product experiences Ensuring the platform remains fast, reliable, and responsive as the number of users, cameras, and data streams grows Writing clean, maintainable, and well-structured code while following modern development best practices Participating in system architecture discussions and helping design scalable solutions for complex problems Troubleshooting and resolving bugs, performance issues, and production incidents across the stack Collaborating with DevOps and AI engineers to integrate machine learning systems and real-time data pipelines into the product Continuously improving the developer experience, tooling, and internal workflows to accelerate development and product delivery Contributing to code reviews, technical discussions, and knowledge sharing within the engineering team Helping shape the technical direction of the platform as we scale globally and expand the product capabilities Who are we looking for? Strong experience as a Full Stack Engineer, preferably working on complex, production-grade applications Solid experience building modern web applications, including both frontend and backend systems Proficiency with JavaScript/TypeScript and modern frameworks such as React, Next.js, or similar Experience designing and building scalable backend services and APIs Familiarity with databases and data modeling (e.g., PostgreSQL or similar) Experience working with cloud platforms such as AWS, Azure is a plus Understanding of system performance, scalability, and distributed architectures Experience integrating real-time data systems, streaming architectures, or AI-powered services is a strong advantage Strong problem-solving skills and the ability to build reliable, maintainable systems Excellent communication skills in English, both written and spoken; Swedish is a plus Personal qualities We believe you are a team player with a strong work ethic, who thrives in a fast-paced environment where you build something from the ground up together. You have a positive attitude towards problem-solving and always deliver high quality in your accounting work, while being curious about how processes can be improved and streamlined. You enjoy solving problems and see opportunities where others see obstacles. In a rapidly growing company, things often change – therefore, you thrive in an environment where initiative, responsibility, and structure are important qualities. You have the ability to work independently, prioritize correctly, and manage several tasks or projects in parallel. With us, you will be part of a culture where we value intellectual curiosity, high pace, and collaboration between technology and business. We build advanced technology but believe in simple, clear ways of working and a team where everyone contributes to the whole. This means we are looking for people who not only want to do their job – but who also want to help build structures, improve processes, and participate in shaping how the company develops going forward. Form of employment: Full-time with an initial probationary period of 6 months Start date: Immediately Location: Stockholm City, Blaiseholmgatan 2A Recruitment Process Our recruitment process is simple and transparent. We review applications continuously and contact candidates we assess to be a good match for the role. The process usually consists of a first conversation where we get to know each other and go through your background and the role in more detail. This is followed by one or two in-depth conversations where we discuss experience, working methods, and how you could contribute to developing our finance function. In the final stage, we may also ask for references. Our goal is for the process to be efficient, clear, and respectful of your time, while ensuring that both you and we feel it is the right match. We look forward to your application!