Senior Backend Engineer (AI-Driven)

Innovecs is seeking talented Senior Backend Engineers (AI-Driven) to join our dynamic team, dedicated to enhancing our B2B and B2C warehouse management ecosystem. The ideal candidate will be an AI-Native Software Engineer, skilled in not only coding but also in orchestrating AI agents and assistants to optimize the Software Development Life Cycle (SDLC). You will play a pivotal role in delivering robust, scalable microservices at speeds that traditional development practices cannot achieve.

We are on the lookout for an accomplished and innovative Lead Backend Engineer (AI-Driven Lifecycle Expert) to join our dynamic team.In this pivotal role, you will lead a newly established high-performance engineering team comprising 6-8 skilled professionals, including Senior Frontend and Backend Engineers. As a reliable leader, you will be accountable for the success of projects and the professional growth of your team members. Your role extends beyond conventional leadership; you will advocate for the adoption of AI-Driven Lifecycle (AIDLC) practices, ensuring that your team leverages AI tools throughout the development process to significantly enhance delivery speed.

nix seeks a Senior Frontend Engineer to help build web applications that use AI and machine learning. The team develops platforms that streamline workflows such as content generation, validation, analysis, and transformation. Role overview This role centers on designing and maintaining frontend features for AI-powered platforms. The work involves creating interfaces that make it easier for users to interact with advanced AI tools. What you will do Develop and maintain frontend features for platforms that use AI and machine learning Design user interfaces that simplify interaction with complex AI tools Collaborate with engineers and product teams to deliver scalable, intuitive, and user-friendly web experiences Location This position is based in Ukraine.

SKELAR is a venture builder dedicated to creating international tech companies following the principles of venture capital. Together with co-founders, we assemble strong teams to launch product-driven IT businesses and excel in global markets.Currently, we are expanding our team and seeking a Senior Backend Engineer to develop world-class internal MarTech systems that will drive business growth at Dressly.Dressly is revolutionizing the fashion industry through AI technologies and a personalized approach. We create tailor-made fashion solutions that empower individuals to express themselves freely.Launched in 2024, we have quadrupled our growth in just six months, with plans to quintuple it again by 2026. The demand is strong, and we have a steady stream of users.Why join us now?This is a unique opportunity to be part of an early-stage team, build products alongside founders, and transform the fashion tech industry.To thrive in this role, you must be a versatile engineer capable of seamlessly transitioning between technologies to solve real business challenges. Your clients will be marketing teams, designers, and user acquisition managers who rely on your technical expertise to achieve exceptional results.Joining us means:Working within the fashion industry, one of the largest consumer sectors globally.Creating products at the intersection of fashion, creativity, and AI.Influencing the product: our engineers do not just write code but actively participate in shaping the product vision.Seeing the full business picture: from idea and design to launch and user feedback.Collaborating closely with designers, marketers, and creators for a shared outcome.Technology Stack:Frontend: TypeScript, NextJS (React), React Native, GraphQL;Backend: TypeScript, NestJS, GraphQL, PostgreSQL;Infrastructure: GCP.

SKELAR is a venture builder dedicated to creating international product-oriented IT companies following the principles of the venture capital world. Together with co-founders, we assemble strong teams to launch product-focused IT businesses and excel in global markets.Currently, we are in search of a Senior Backend Engineer for our partner company.This platform focuses on personal and spiritual growth, built on Christian values. We assist individuals in finding answers to life’s most significant questions: from a deeper understanding of faith to enhancing relationships through personalized plans. Our users have access to lessons, interactive quizzes, and video materials, creating a holistic learning experience.Our strategy is to become a global platform where tens of millions of Christians, hundreds of organizations, and thousands of mentors and pastors can interact.Key Achievements We Are Proud Of:Users love us: our average rating on App Store, Google Play, and Trustpilot is 4.7/5.We are rapidly growing: our team has increased fourfold in the last year.We are a partner of Meta, confirming the high level of our product and the trust of technological leaders.We are evolving at an incredible pace, providing every team member the opportunity to grow rapidly alongside the company—both professionally and personally. The company supports learning through mentoring, internal educational initiatives, and access to external courses.It is worth noting that we extensively integrate AI tools into all processes. We are already utilizing integrations with MCP servers in daily tools, AI Code Review, and automation of key routine tasks. This allows us to focus on creativity and innovation instead of routine tasks.

Join Our Team at IdealsIdeals is a renowned global B2B SaaS provider celebrated for being the most customer-focused brand in the secure business collaboration space. With over 2 million users across 300,000 companies worldwide, we empower organizations to manage high-stakes processes and make significant decisions with greater ease and efficiency.Ideals Virtual Data Room (VDR): Facilitating secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other intricate transactions.Ideals Board: A platform designed for board and leadership collaboration, ensuring faster, safer, and compliant decision-making.Your MissionWe are in search of a Backend Software Engineer (.NET) with AI skills who will be pivotal in developing and scaling our secure, high-load VDR services while also exploring the integration of AI patterns into our product features.Your success will be gauged by your strong backend fundamentals—reliability, performance, scalability, and maintainability—and your capability to implement AI features safely and efficiently using reusable, well-architected components.This role is hands-on within a mature product environment where engineering excellence, observability, and sustainable architecture are paramount.Key ResponsibilitiesBackend Engineering:Design, develop, and maintain high-quality production-grade .NET services.Utilize .NET Framework 4.7, .NET 8, ASP.NET, Web API, and Entity Framework.Create and refine data models with MS SQL Server and PostgreSQL.Deploy and manage services on AWS, leveraging Docker, Kubernetes, and ArgoCD.Ensure service reliability and performance through:Defining clear SLIs, SLOs, and capacity planning.Implementing caching, retries, backoff strategies, and circuit breakers.Establishing secure multi-tenant access control.Take ownership of services from design through implementation, deployment, monitoring, and support.

Important: This position requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for everyone. Our vision extends beyond the present as we strive to shape the future of financial transactions.We are a movement that empowers millions, united by a common goal to confront significant challenges. Our agile approach allows us to innovate rapidly, think creatively, and learn collaboratively as we push boundaries.If you seek to make a meaningful impact alongside a talented team, you have come to the right place.Key ResponsibilitiesAs a Senior Backend Software Engineer within the Business Team, you will significantly influence the future of digital welfare payments. Your responsibilities will encompass everything from employer benefits to sophisticated products, supporting the entire journey for both employers and employees to ensure lasting satisfaction. You will guide the technical direction, maintain quality, and ensure the timely delivery of complex systems that enable numerous employers to manage their corporate welfare efficiently. Here’s what you can expect in your daily tasks:Develop Multi-Service Solutions: Conduct thorough technical analyses for medium-to-large projects affecting various services in the Employer domain. Design comprehensive, highly available solutions, emphasizing scalability, security, and maintainability for products central to welfare.Guarantee Technical Quality: Implement strong testing strategies, balancing both automated and manual coverage while managing gradual rollouts with vigilant monitoring to ensure precise welfare distributions.Identify and Resolve Blockers: Proactively foresee and address technical obstacles, promoting knowledge sharing throughout the organization. Tackle the unique challenges posed by B2B registration workflows and high-volume benefit allocations while ensuring code quality through active reviews.Take Ownership: Own your projects from inception to completion, delivering features that genuinely address user needs—from the moment an employer signs up to when an employee utilizes their welfare benefits—through seamless and efficient back-end integration.

Join our team at Progressoft as a Senior AI Engineer, where your passion for transforming data into intelligent, production-ready solutions will thrive. In this remote role, you will engage with the entire AI stack, from classical machine-learning models to cutting-edge large language models (LLMs), computer vision pipelines, and analytics/forecasting workflows. If you are enthusiastic about data exploration, model development, and delivering reliable AI services, we are eager to connect with you.Key ResponsibilitiesModel Development: Design, train, fine-tune, and assess models across various methodologies including classical ML, deep learning (CNNs, transformers), and generative AI (LLMs, diffusion).Data Exploration & Analytics: Perform exploratory data analysis, statistical testing, and forecasting to guide feature development and business KPIs.End-to-End Pipelines: Create reproducible workflows for data ingestion, feature engineering, training, CI/CD, and automated monitoring.LLM & Agentic AI Engineering: Develop prompts and retrieval-augmented generation (RAG) pipelines; fine-tune LLMs on specialized datasets to enhance accuracy and meet product specifications.AI Automation & Integration: Deploy AI components as micro-services; integrate with orchestration tools (Airflow, Prefect) and business APIs to streamline decision-making processes.Continuous Learning: Stay updated on advancements in LLMs, vision, and analytics; share knowledge and best practices with the engineering team.Mentorship: Provide guidance to junior engineers and contribute to shaping technical direction and engineering excellence.

Innovecs provides digital services to clients across the US, UK, EU, Israel, Australia, and Ukraine. The company develops software for industries including supply chain, healthtech, collaboration technology, and gaming. Solutions are designed to meet each client’s changing business requirements. Innovecs has earned recognition for its growth and workplace culture. The company appeared on the Inc. 5000 list of fastest-growing private US companies for five consecutive years and is ranked among the top global outsourcing providers by IAOP. Additional honors include the Global Good Awards for Employee Engagement & Wellbeing, a gold award at the Employer Brand Management Awards, and a place in the Global Top 100 Inspiring Workplaces Ranking.

About UsAt Ruby Labs, we pride ourselves on being a pioneering tech firm dedicated to the development and management of cutting-edge consumer products. Our team is passionate about creating impactful solutions in the health, education, and entertainment sectors, and we are continually seeking enthusiastic individuals to become part of our innovative journey. Discover more about our mission and vision at: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a CRO Manager to enhance the optimization of our reverse lookup products. This position is perfect for an individual equipped with a strong background in conversion rate optimization who is eager to expand their expertise while collaborating with seasoned growth leaders.The ideal candidate will possess an AI-driven mindset, adept at integrating structured experimentation, product analytics, and contemporary AI tools to elevate performance across our user funnels, thereby contributing to sustainable product growth.You will uncover optimization opportunities, design and execute experiments, and utilize AI-driven insights to refine user experiences, boost conversion rates, and bolster overall product performance.Partnering closely with the Senior Growth Manager, you will oversee all phases of the CRO process—from research and hypothesis formulation to testing, analysis, and rollout—emphasizing quality execution, organization, and continuous learning.This role demands a proactive approach; you will actively engage in experiments, ensure their precise implementation, and translate insights into tangible improvements.

Role overview nix is hiring a Senior AI Engineer based in Europe or Ukraine. This role focuses on building and improving AI-driven products. The Senior AI Engineer works closely with colleagues from different disciplines to design, develop, and implement advanced AI models. The position plays a key part in shaping technical solutions that support and expand nix’s product lineup.

Join Eleks as a Senior AI Engineer and spearhead cutting-edge Proof of Concept (PoC) projects that redefine the future of technology. In this role, you will leverage your expertise in artificial intelligence to design, develop, and implement innovative solutions that address complex business challenges.As a remote team member, you will collaborate with a dynamic group of professionals who are passionate about technology and innovation. You will play a crucial role in shaping our AI strategies and ensuring the successful delivery of our projects.

About UsAt Ideals, we are a pioneering global B2B SaaS company, acclaimed as the most highly rated and customer-centric brand in the secure business collaboration arena. With over 2,000,000 users spanning 300,000 companies worldwide, we empower teams to navigate high-stakes processes and make critical decisions with enhanced efficiency, reduced stress, and superior quality.Ideals Virtual Data Room (VDR): A secure platform for document sharing and collaboration, essential for due diligence, fundraising, corporate reporting, licensing, clinical trials, and various intricate transactions.Ideals Board: A collaborative platform designed for board and leadership teams to make decisions more quickly, safely, and in compliance with regulations.The RoleWe are on the lookout for a Senior Backend Engineer (.NET) to join our Orion Team, a vital component of our organization. This team is responsible for the essential file management backbone of the Ideals VDR, which includes:File conversion pipelinesAdvanced watermarking solutionsAI-driven document classification systemsHigh-performance document viewing experiencesTeam Composition: Our team consists of 2 Backend Engineers, 2 Frontend Engineers, 2 QA Engineers, an Engineering Manager, a Tech Lead, an Architect, a Product Manager, a Designer, and a Content Manager.Technology Stack: Our technology stack includes .NET Framework 4.7, .NET 8, ASP.NET Core, Entity Framework, Web API, MS SQL Server / PostgreSQL, AWS, Docker/Kubernetes, ArgoCD, and Git.Your ResponsibilitiesEngage in all phases of the Software Development Life Cycle (SDLC) as part of a cross-functional product team, including but not limited to requirements analysis, design, implementation, testing (unit, integration, and service tests), deployment, and operational management of new product features, as well as addressing change requests, defect resolution, spikes, and proof-of-concept development.Maintain high-quality standards in all deliverables.

TENTENS Tech is a partner IT company of SKELAR, a Ukrainian venture builder focused on creating international tech businesses.We develop social discovery platforms for over 20 million users worldwide, driven by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech consists of over 250 professionals, each acting as a CEO in their role and contributing to collective success. We adhere to the 10/10ths philosophy: we stay focused on our goals, ask the right questions along the way, and never settle for "good"—we strive for excellence and beyond. If you resonate with this description and are ready to accelerate with us, let's connect!We are currently seeking a Backend Engineer (PHP/Go) to help elevate our performance standards.

Skelar is a venture builder focused on creating innovative tech companies that operate under the principles of venture capital. We collaborate with co-founders to assemble strong teams and launch product-driven IT businesses that excel in global markets.We are currently expanding our team and seeking a Senior AI/ML Engineer to play a pivotal role in developing our flagship product—an AI Stylist that offers personalized styling solutions. This is an opportunity for you to eventually lead our AI initiatives.Dressly launched in 2024 and has quadrupled its growth in the last six months. We anticipate a fivefold increase in growth by 2026 compared to 2025. With a steady influx of users who love our AI features, including Virtual Try-On, Color, Body, and Outfit Analysis, we are building internal AI expertise. We need a Senior AI/ML Engineer to architect our models today and lead our AI team in the future.Why join us now?This is your chance to join a product at a crucial growth stage, influence technical decisions from day one, and pave your way to becoming a Lead AI/ML Engineer as we build our team from the ground up.Technology StackWe are looking for an engineer with a solid technical foundation who is ready to take responsibility for tool and architectural pattern selection. Our current focus includes the following technologies, but you will have the autonomy to choose and implement many components:Languages and Frameworks: Python (PyTorch / TensorFlow / JAX)GenAI & LLM: LangChain / LlamaIndex, Vector Databases (Pinecone, Milvus or similar)Infrastructure & MLOps: GCP (Vertex AI, GKE), Docker, Kubernetes, MLFlow or other orchestration and monitoring toolsData: PostgreSQL, BigQuery, ETL process toolsWhat Matters to UsYou have 7+ years of experience in ML/AI with a proven track record of deploying models in production.You understand the GenAI ecosystem: not just API usage but knowledge of LLM architectures, fine-tuning methods, and Retrieval-Augmented Generation (RAG)....

Join Viseven Group, a premier international MarTech company specializing in innovative interactive content and cloud solutions tailored for global pharmaceutical enterprises since 2009. Our commitment to continuous growth and self-improvement is embedded in our corporate DNA. Our unique developments and methodologies are actively utilized in over 50 countries worldwide, and our solutions are showcased at major industry events in Barcelona, Philadelphia, London, and more.Our rapidly expanding team comprises over 700 highly skilled technical and non-technical professionals, including front-end and back-end developers, business analysts, and managers. Together, we create, localize, and customize applications across our offices located in Zhytomyr (Ukraine), Tallinn (Estonia), Poznań (Poland), New Delhi (India), and Bridgewater (USA).Role Description:We are seeking a Senior AI Engineer to join our AI team for our product eWizard.

Join Skelar, a leading venture builder dedicated to crafting innovative IT products that resonate on a global scale.We are currently seeking a Senior/Lead Backend Engineer to spearhead our martech initiatives within our partner company, Duomo. This platform is designed for personal and spiritual development, rooted in Christian values, providing users with customized plans to address pivotal life questions.At Duomo, we strive to create a global community where millions of Christians, organizations, mentors, and pastors can connect and grow together.Our achievements speak volumes:Users love us: Our average ratings across App Store, Google Play, and Trustpilot stand at an impressive 4.7/5.Rapid growth: Over the past year, our team has expanded fourfold.Trusted by Meta: Our partnership with Meta underscores the quality and trustworthiness of our product.We are evolving rapidly, offering every team member the opportunity to grow both professionally and personally. Our commitment to learning includes mentorship, internal education initiatives, and access to external courses.Additionally, we are integrating AI tools throughout our processes, using MCP server integrations, AI Code Review, and automation to enhance creativity and innovation.

Role overview Wix Payments seeks a Backend Engineer based in Kyiv to strengthen the systems behind payment processing for Wix users. The focus is on backend development, supporting smooth and reliable transactions across the platform. What you will do Design, build, and maintain backend features for the Wix Payments platform Collaborate with colleagues from other teams to deliver dependable payment services Help improve the stability and efficiency of transaction processing Impact This role directly supports secure and seamless payment flows for Wix users. Enhancements made here will influence the reliability and performance of payment operations throughout the platform.

Role overview Sigma Software Group is hiring a Senior Business Analyst in Kyiv to focus on AI-driven solutions. This role connects business priorities with technology, supporting projects that apply artificial intelligence to address client needs. What you will do Collaborate with cross-functional teams to gather and document business requirements for AI projects Translate complex business objectives into clear, actionable insights for technical teams Contribute to the direction and impact of AI initiatives, with the goal of improving efficiency and client results

Become a pivotal member of our Chatbot team at Wix, where your expertise in AI technology will help revolutionize customer experiences. As a Senior AI Server Engineer, you'll be responsible for the creation of sophisticated, context-aware features that will transform our Customer Care Chatbot into an essential resource for users navigating their Wix journey. Your role will encompass the entire development cycle—from exploring cutting-edge AI methodologies to implementing scalable features that provide meaningful value to millions of users.You will:Architect, develop, and integrate advanced AI functionalities utilizing the latest LLM and NLP technologiesEngage in research and experimentation to discover innovative solutions and apply high-level models to real-world customer care challengesTake full ownership of feature development, collaborating with product teams to define requirements, estimate scope, implement solutions, and monitor performanceOptimize system performance, stability, and reliability to ensure an uninterrupted, high-quality serviceParticipate in architectural and technical discussions aimed at enhancing system design and developer experience