Source Job

• Architect, develop, and maintain scalable backend services for AI applications.
• Integrate 3rd party APIs such as Twilio, WhatsApp, and OpenAI.
• Design and improve multi-agent orchestration frameworks for AI conversations.

Tuotempo transforms healthcare experiences through intelligent digital solutions, offering a patient engagement platform. They empower medical professionals by streamlining operations and enhancing patient experiences with their cloud-based CRM system, boasting a remote-first culture with hubs in Bologna and Barcelona.

• Build the application-layer foundations for AI integration at Roofr.
• Design and implement reliable, scalable integrations with third-party services and APIs.
• Build data pipelines that feed Roofr's AI systems.

Roofr is obsessed with its customers, gathering feedback to shape and launch the products they need. It started by building essential sales tools and created a CRM to connect solutions into a seamless platform, focused on growth and innovation.

• Design, develop, and maintain scalable backend services using Python.
• Build and optimize data pipelines and ETL workflows.
• Design and implement REST APIs and internal service integrations.

SD Solutions is a staffing company operating globally. Wider (ex. HyperAd) is a fast-growing platform that automates creative optimization through machine learning, enabling global brands to scale high-performing ads using data-driven automation.

• You will play a key role in enabling our organisation to scale efficiently.
• Roughly ⅔ of your time will be hands-on technical work: designing solutions, steering and reviewing AI-generated code, developing new ideas, and reviewing others' contributions.
• Guide and support engineers by setting a strong example.

OLX is building marketplace sustainable ecosystems that millions of people depend on every month to buy and sell cars, find homes, land jobs, and trade secondhand goods. They have 50+ nationalities and 7 markets.

• Develop a strong understanding of Workera's AI-powered platform, customers, and business model.
• Actively lead and deliver your first full project, owning backend architecture, build, and rollout end-to-end.
• Architect and own backend systems that are robust, performant, and built to scale.

Workera is redefining how enterprises understand, develop, and mobilize talent in the age of AI. The company is a fast-growing, Series B Silicon Valley company building AI-native skill assessments for the world’s largest organizations, with clients including Samsung, Siemens Energy, and the U.S. Air Force.

• Build, maintain, and improve APIs and services powering public-facing applications
• Deliver performant, reliable backend solutions aligned to product requirements
• Drive backend architecture and API design decisions that improve scalability, resiliency, and maintainability

PlayOn is a dynamic growth-stage company dedicated to championing the spirit of play in the high school space. Backed by KKR, their family of brands empowers schools with innovative solutions and exceptional service. Their culture is built on accountability, collaboration, growth, and fairness.

• Help drive backend architecture to the next stage of Roof’s systems
• Work in a fast-paced cross-functional team that values doing things ‘the right way’
• Contribute in an early-stage company with engineering first culture

Roofr is dedicated to providing customers with essential sales tools. They have built a CRM that connects solutions into a powerful platform and are a successful startup with best-in-class company metrics, offering its team significant growth and equity.

• Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
• Ensure high performance and reliability across our distributed systems.
• Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.

Mistral AI democratizes AI through high-performance, optimized, open-source and cutting-edge models, products, and solutions, with a comprehensive AI platform designed to meet enterprise needs. They are a dynamic and collaborative team passionate about AI, with a diverse workforce thriving in competitive environments and committed to driving innovation; their teams are distributed between France, USA, UK, Germany, and Singapore.

• You’ll help establish patterns, ship early AI-driven capabilities, and influence the technical direction of AI across multiple products.
• This is a full-stack role where you will build and ship AI-powered features across the Momence platform.
• Collaborate with teams across Momence, Mariana Tek, and other platforms to identify high-impact opportunities for AI.

Xplor provides cloud-based technology solutions to small and medium-sized businesses to help them manage and grow. They have over 130,000 businesses in 72+ countries rely on Xplor.

• Design, build, and maintain backend services for device connectivity using AI.
• Use agentic workflows to increase delivery velocity without sacrificing quality.
• Help define and codify AI-native engineering practices for the Devices Cloud team.

Life360's mission is to keep people close to the ones they love with a range of services, including location sharing, safe driver reports, and crash detection with emergency dispatch. They are a remote-first company with more than 500 employees.

• Design and implement LLM-powered application workflows
• Architect retrieval-augmented generation pipelines
• Collaborate with backend architects to integrate AI services into APIs

They are seeking a hands-on AI Engineer with deep expertise in Large Language Model integration and production AI systems. The company's culture sounds innovative and collaborative, focusing on building scalable and secure AI applications.

• Design and build end-to-end features across frontend and backend systems
• Develop scalable, maintainable, and secure software architectures
• Implement AI-powered features using LLMs, embeddings, agents, or ML services

Crosslake supports changemakers and helps them buy, build, and run better technology. They empower others. Their expertise is earned and proven.

• Design AI integration patterns and architecture standards across the SaaS platform
• Integrate LLM APIs (OpenAI, Anthropic, AWS Bedrock) into production features
• Establish model evaluation, benchmarking, and observability processes

PerfectServe offers Best in KLAS clinical communication and physician scheduling solutions and is a Leader in the Gartner Magic Quadrant for Clinical Communication and Collaboration. They have seen an 88% growth rate over the past three years.

• Lead a team focused on Integrations & API development.
• Drive strategy around integrations and evaluate the existing market.
• Focus on the API platform and integrations platform.

Horizon3.ai is a cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. They have a remote-first culture committed to respect, collaboration, ownership, and results.

• Build AI-Powered Features: Design, develop, and deploy production-grade AI applications from concept to deployment.
• Architect Scalable Systems: Create robust backend architectures that support AI workloads, ensuring low latency and high reliability.
• Drive AI Innovation: Implement and optimize agentic AI systems, RAG pipelines, and multi-agent workflows using modern LLM frameworks.

Procurify is the AI-enhanced procurement and AP automation platform for mid-market organizations, making it easy for organizations to take control of spending and save money. It is a remote-first company with a big heart and a strong ambition to modernize how organizations manage business spend.

• Build and ship AI-powered product and internal solutions using LLMs, RAG, tool calling, workflows, and agentic patterns
• Design quality and evaluation frameworks for AI systems, including offline evals, online signals, failure analysis, and continuous improvement loops
• Contribute to AI platform and tooling decisions that improve reuse, speed, and consistency across teams

Finom is a European tech startup headquartered in Amsterdam, revolutionizing financial landscape for entrepreneurs. They develop an all-in-one financial B2B solution integrating banking, accounting, financial management, and invoicing into a mobile-first platform and nurture innovation in an inspiring work environment.

• Maintain and improve the internal flows, services, and modules that enable the AI agent to operate stably and efficiently.
• Implement technical optimizations aimed at improving performance, resource usage, and response times.
• Diagnose, resolve, and prevent agent-related incidents, including root cause analysis and hardening actions.

Baubap is building the most inclusive financial platform in LATAM. They need robust, stable backend systems capable of sustaining intelligent automation at scale and seem to have a multicultural, highly driven team of professionals.

• Own the architecture and delivery of production-grade LLM systems and classical ML solutions.
• Design, evaluate, and optimize RAG pipelines (retrieval strategy, chunking, indexing, monitoring).
• Build scalable, production-grade LLM services and agentic workflows, alongside traditional ML systems where appropriate.

Hiflylabs is a team of 250+ data and tech enthusiasts based in Budapest. They focus on data engineering, data science, artificial intelligence and application development, working on a wide range of projects around the world. Hiflylabs values its people and is committed to nurturing their personal and professional development through a mentoring system.

• Assist in building and maintaining backend services and APIs that support core product features.
• Work with PostgreSQL databases to help model data, write queries, and support reliable data pipelines.
• Help integrate AI and LLM-based capabilities into backend workflows, including prompt development and API integrations.

Impiricus is an AI-powered HCP Engagement Engine that ethically connects HCPs to pharma resources. They are named the #1 fastest growing company in North America by Deloitte with a unique access to the largest opted-in network of HCPs.

• Lead the design of distributed systems and data models, ensuring the Java Spring Boot environment can support rapid scaling and feature expansion.
• Take full accountability for the end-to-end delivery of major cross-functional product updates, managing the release lifecycle and ensuring high-impact features are deployed reliably.
• Proactively leverage AI tools (e.g., Claude) to complement your workflow and increase velocity, while retaining total ownership over the logic, security, and architectural implications of the code.

Archy is transforming the way dental practices operate with its vertical SaaS solution that provides cutting-edge tools. They are looking for passionate engineers to join their growing team.