Backend Jobs in Portugal
Find Backend jobs in Portugal. Full-time, contract, remote and freelance opportunities.
45 vagas encontradas
AI Trainer - Video Annotation
iMerit Technology
AI Trainer - Video AnnotationRemote | Independent Contractor Prove your skills. Get certified. Robotics AI is advancing rapidly, and high-quality video data helps intelligent systems better understand the world around them. We are inviting detail-oriented professionals to complete our certification process for potential robotics AI projects. ▌ What you will doAs part of the certification pro
Security Engineer
Eight Sleep
Join the Sleep Fitness Movement At Eight Sleep, we’re on a mission to fuel human potential through optimal sleep. As the world’s first sleep fitness company, we’re redefining what it means to be well-rested and building the most advanced hardware, software, and AI technology to make it possible. Our products power peak mental, physical, and…
Senior Frontend Engineer
B2spin
About B2SpinWe are B2Spin, and we are dedicated to delivering the best Free-to-Play Social Casino and gaming experiences by creating captivating, engaging, and unique products that are accessible to everyone. We have built a team of talented professionals from all over the globe, who are working to continually improve the experiences of our player
Software Engineer, AI Coding Tasks
Askable
We're looking for experienced software engineers to build AI coding tasks from a codebase they know well. US$1,000 per task, and you can do as many tasks as you want. You turn a real change from a repository you know into a task that today's best AI coding models struggle with: hard for the models, but fair for a skilled engineer. Your tasks are used to measure and train AI coding models. Remo
Backend Engineer, Knowledge Graph (Rust)
GitLab
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built int
Senior Backend Engineer
DuckDuckGo
Who We Are Hi, we're DuckDuckGo, the online protection company and remote-first team of 400+ on a mission to raise the standard of trust online. Founded in 2008 and profitable since 2014, our annual revenue is in the hundreds of millions USD and millions use our browser on <a class="ProsemirrorEditor-link" href="https://spreadprivacy.com/introducing-duckduckgo-for-mac/
Tech Lead Full-Stack Rails Engineer
Mitre Media
About Mitre Media Mitre Media is redefining FinTech with AI-driven tools that empower millions of investors. Our portfolio, including Dividend.com and MutualFunds.com, leverages LLMs to deliver novel data insights and visually rich user experiences. For over a decade, we’ve served individual investors, financial advisors, and top asset managers like BlackRock and Vanguard through our premium data,
Manager, Customer Support
Wrapbook
About Us: Wrapbook is the AI platform for production finance. We’re building a system of action that puts finance teams in control of their whole production, from payroll, to spend, to accounting. Built for feature films, TV, and commercials, Wrapbook is trusted by teams at Netflix, Paramount, Anonymous Content, and more. With backing from Andreessen…
Senior Backend Engineer
Rain
Remote - Rain is the world's first AI Financial Health Platform, serving 3.5 million employees at leading organizations like McDonald's, Marriott, and T-Mobile. Rain works in the background to optimize every employee's financial life to prevent shortfalls and build long-term sta...
Remote Office Assistant
Coalition Technologies
Coalition Technologies is seeking a reliable, detail-oriented, and highly organized Remote Office Assistant to support administrative, bookkeeping, billing, reporting, data entry, and internal operations tasks. This role is ideal for someone with strong communication skills, discretion, attention to detail, and a willingness to learn and grow within a fast-paced remote work environment. As an Offi
Backend Engineer, Java - Web 3 Wallet
Binance
Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance&hell
Senior Software Engineer II Applied AI
Wrapbook
About Us:Wrapbook is the AI platform for production finance. Weâre building a system of action that puts finance teams in control of their whole production, from payroll, to spend, to accounting. Built for feature films, TV, and commercials, Wrapbook is trusted by teams at Netflix, Paramo
Inside Sales Contractor
Credit Wellness, LLC
About Us We are a financial services start up focusing on helping to improve consumer credit profiles. We are currently seeking KPI driven sales representatives looking to earn up to 45K in their first year while working remotely. We offer comprehensive training and continuous sales coaching to help you meet your financial goals. During our training period we offer a guaranteed training stipend wh
Principal Technical Marketing Engineer | UK | Remote
Grafana Labs
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving…
Principal Software Engineer
Vytalize Health
Your OpportunityAs a Principal Engineer, you will help design, build, and operate the clinical decision support and API-driven data delivery platform that enables Vytalize Health to embed timely, actionable clinical insights directly into provider workflows. Working cross-functionally with Data Engineerin
Tier III Service Desk Engineer
Unio Digital
Unió Digital is an Arizona-based managed service provider (MSP) delivering Managed IT Services, Low Voltage Cabling, Access Control, Video Surveillance, and Intrusion Services. We believe technology should be intuitive, not intimidating. We are looking for an experienced Tier 3 Service Desk Technician with exceptional problem-solving skills. You will serve as the escalation point within the team
Principal Technical Marketing Engineer | Spain | Remote
Grafana Labs
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving…
Frontend Engineer
Bjak
About ActAIThere are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no
Freelance Writer
IAPWE
Our organization is seeking content writers to create articles and blog posts on a variety of topics. The rate of pay is $20 per 100 words (this comes out to approximately $100 per article or $50 per hour). Some topics you may be asked to write about include the following (you can always turn down a topic if you do not feel comfortable writing about it, however if you have experience or expert
Principal Technical Marketing Engineer | Germany | Remote
Grafana Labs
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving…
Senior Backend Engineer Build AI Agents
Salesforge
Remote - Most sales tools help you send emails. Weâre building something different.At Salesforge, weâre creating autonomous AI agents that can:Find the right prospectsGenerate highly personalized outreachRun conversationsAnd book meetingsAll without human invo...
Freelance Copywriter
Coalition Technologies
CT Marketing Agency is seeking skilled Freelance Copywriters to write high-quality, SEO-driven content for eCommerce and lead generation websites. This is a freelance, project-based writing role. The ideal candidate has excellent English writing skills, strong research ability, and experience writing content that follows detailed, client-specific guidelines. Projects commonly include category pa
Principal Technical Marketing Engineer | Ireland | Remote
Grafana Labs
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving…
DESARROLLADOR FULL STACK
Kruger NearShore LLC - Rekluti
Desarrollador/a Full Stack â Python / Angular / GoEn Rekluti, consultora especializada en talento tecnológico en LATAM, buscamos un/a Desarrollador/a Full Stack para integrarse a proyectos de alta complejidad y participar en el desarrollo de soluciones web escalables.Buscamos un perfil con sólida e
Senior React Full-stack Developer
Lemon.io
Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io — the marketplace that connects you with hand-picked startups in the US and Europe. What we offer: The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers. No more hunting for clients or
Principal Technical Marketing Engineer | Sweden | Remote
Grafana Labs
Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and observability to AI, giving…
Staff Software Development Engineer SDM
Delinea
About Delinea:Delinea is a pioneer in securing human and machine identities through intelligent, centralized authorization, empowering organizations to seamlessly govern their interactions across the modern enterprise. Leveraging AI-powered intelligence, Delineaâs leading cloud-native Identity Security Platform applies context throughout the ent
Senior back-end Engineer
Lemon.io
Senior Developer? Work Remote. Get Paid Well. Build What Matters. Lemon.io connects hand-picked senior developers with vetted startups across the US and Europe — no bidding wars, no ghosting, just serious opportunities. We're currently hiring for a research-driven AI company on a mission to slash the cost of modern AI — co-designing hardware, software, algorithms, and models to make AI's benefit
Senior Software Engineer - Verification Platform
Veriff
Beneath a simple yet elegant user interface lies a complex system of functionalities. Our AI-powered product uses advanced image recognition, facial verification, face recognition, facial anti-spoofing (liveness detection), and behavior analysis to make identity decisions. We help our partners build onboarding processes that ensure good people get things done and bad folks get stopped. To…
Senior Software Engineer Case Execution
Pivotal Health
About Pivotal HealthPivotal Health is the leading technology platform that helps healthcare providers get paid fairly in an increasingly complex reimbursement landscape.Today, many providers face persistent underpayment from health insurance companies, despite delivering high-quality care. While processes like IDR (Independent Di
Senior Software Engineer, Product
RevenueCat
RevenueCat gives app businesses the infrastructure and tools to build, run, and improve their monetization. Since graduating from YC's S18 batch, we've grown into the default monetization platform for mobile. We're in 50%+ of newly shipped subscription apps, we process $16B+ in annual purchase volume, and we help everyone from a solo developer to the…
Java Developer
Clera
About the RoleWe are an early-stage, venture-backed AI infrastructure company building production-ready Kubernetes-based systems for GPU-intensive workloads. Our platform helps companies go from bare metal to fully operational AI clusters in days, and we're looking for a Java Developer to join our small, high-impact engineering team.Wha
Senior Backend Engineer
RevenueCat
RevenueCat gives app businesses the infrastructure and tools to build, run, and improve their monetization. Since graduating from YC's S18 batch, we've grown into the default monetization platform for mobile. We're in 50%+ of newly shipped subscription apps, we process $16B+ in annual purchase volume, and we help everyone from a solo developer to the…
Software Engineer GO
Wakacje.pl
Remote - Market-leading travel agency (part of an international holding) working with numerous tour operator partners is looking for a Golang Developers to join our core backend engineering team. Our developers focus heavily on building robust API integrations between our inter...
Safety Engineer (Backend Leaning)
Elevenlabs
About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of…
Android Developer
Bjak
About BJAKThe original mission of BJAK is we believe people deserve smarter ways to plan, save and grow their money. This is the origin of our name.Started in 2019, we built the first mobile-first, insurance platform, enabling insurance to be accessible online by millions in the region. Today, its the leading insurance platform in S
Systems Architect - APAC
Elevenlabs
About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of…
Business Development Manager
Temu
Role Description: This is a full-time remote role for Business Development ManagerResponsibility:1.â¦
Engineering Manager, Notifications
Discord
Discord has a highly engaged community of millions of daily active users who use the platform for many different reasons, but there’s one thing that nearly everyone does: play video games. Discord plays a uniquely important role in the future of gaming, and we are focused on making it easier and more fun for people…
Business Development Executive
Outsource Access Careers
This is a remote position.What We DoAt Outsource Access, we help HR professionals and businessâ¦
OrioleDB Developer (AMER)
Supabase
About Supabase Supabase is the Postgres development platform, built by developers for developers. We provide a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. All services are deeply integrated and designed for growth. About the role We're looking for an engineer to drive the evolution of OrioleDB and its collaboration…
Staff Engineer, Full Stack (Trust, Safety & Risk)
Phantom
Phantom is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural…
Database Support Engineer (EMEA)
Supabase
About Supabase Supabase is the Postgres development platform, built by developers for developers. We provide a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. All services are deeply integrated and designed for growth. About the Role We’re looking for an experienced Database Support Engineer to join our Support Team and…
Staff Design Engineer - Americas
Ashby
Hi I’m Abhik, Ashby's Co-Founder and VP of Engineering. This role is close to my heart because, as someone who can both design and code, it’s where I’ve always done my best work, but also where I was seen as a rebel and an outsider. I want folks like me to feel at home…
Staff Software Engineer
UpGuard
Who are we? At UpGuard, we are replacing manual security bottlenecks with AI-driven precision. Fresh off a US$75M Series C, we are scaling our infrastructure to process 100 billion risk signals daily. This isn’t just growth; it’s a total reimagining of how the world manages cyber risk. We build the Cyber Risk Posture Management (CRPM)…