Senior Release Engineer

N-iX is seeking a talented Senior Release Engineer to become a vital part of our Release Management team on one of our exciting projects. In this role, you will be instrumental in the software development lifecycle, overseeing the validation, promotion, deployment, and ongoing monitoring of releases across various environments. The ideal candidate will have hands-on experience with DevOps tools, cloud infrastructure, and the expertise to manage safe and scalable rollouts effectively.Key Responsibilities:Validate and promote releases, ensuring they meet quality standards.Build and deploy artifacts to both staging and production environments.Execute comprehensive test suites to confirm readiness for promotion.Manage promotions through deployment rings and configure pipelines efficiently.Monitor application health, including rollbar alerts and canary error dashboards.Review and adhere to monitoring plans for each deployment.Operate and enhance end-to-end CI/CD pipelines utilizing tools like Jenkins, GitHub, and BuildKite.Oversee infrastructure and service deployments using Kubernetes and Argo.Coordinate urgent fix rollouts and rollback processes as necessary.Utilize AWS services (EKS, RDS, S3, VPC, etc.) for deploying and managing infrastructure.Automate configuration and ensure scalability of environments.

Quantum Systems GmbH creates unmanned solutions for air, land, and sea. The company designs aerial drones, underwater vehicles, and ground platforms that blend modern hardware with AI-driven software. These technologies deliver real-time data and precise control, supporting defense, security, and public sector missions around the world. Since 2022, Quantum Systems has maintained a local office in Kyiv, reflecting its commitment to Ukraine. Role overview The Product Release Manager leads efforts to build and improve a unified release management system for all Quantum Systems products. This position coordinates across teams and technologies, making sure that product features align and releases happen smoothly throughout the organization. The work has a direct impact on products used in active combat situations. What you will do Develop and enhance processes for managing product releases across air, land, and sea platforms Coordinate release activities among cross-functional teams and technical groups Maintain predictable and controlled delivery of new features and updates Help ensure reliability and performance for products deployed in challenging, real-world conditions Requirements Background in managing complex, multidisciplinary product releases Strong skills in organization and coordination Comfort working with products designed for defense and security applications Proactive approach and high attention to detail Location This role is based in Kyiv, Kyiv, Ukraine.

Ajax Systems is on the lookout for an experienced Release Manager to lead our multi-platform release processes.At Ajax Systems, we are dedicated to creating cutting-edge security systems and smart home devices. Our mission is to ensure that every home is safe and secure, while making alarms innovative, stylish, and user-friendly. We believe in the Internet of Things and smart security as its foundation.Ajax is a full-cycle company: from idea generation and R&D to mass production and sales. We handle everything in-house, from designing and manufacturing sensors and control panels to writing firmware, developing server components, and releasing mobile applications. All technical and product decisions are made at our Ukrainian HQ.

Role Overview Miratech is looking for a Senior Data Engineer in Kyiv. This role focuses on designing, building, and maintaining scalable data architectures that support business growth. The position involves working closely with teams across the company to deliver reliable data solutions. What You Will Do Design and develop data architectures that can scale with business needs Build and maintain data processing pipelines Work with cross-functional teams to deliver data solutions that support business insights Optimize data workflows for performance and reliability Ensure data integrity throughout all processes

Join our innovative team as a Senior Embedded Engineer at ajax, where you will play a pivotal role in designing and developing cutting-edge embedded systems. You will work closely with cross-functional teams to create reliable and efficient software solutions that meet the demands of our customers.In this dynamic position, you will leverage your expertise in embedded programming, hardware integration, and system architecture to contribute to a variety of exciting projects. You will have the opportunity to mentor junior engineers and help shape the future of our technology.

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.

About the Role Miratech is hiring a Senior Data Engineer in Odesa. This position focuses on designing, building, and maintaining scalable data architectures that support business insights and operational efficiency. What You Will Do Design and develop data solutions to address business needs Build and maintain scalable data architectures Support data-driven decision-making across the organization Who We’re Looking For Someone who enjoys solving complex data challenges and working with modern data technologies. Experience in environments where priorities shift quickly is helpful.

Role overview Miratech is seeking a Senior DevOps Engineer based in Kyiv. This position centers on designing, building, and refining cloud infrastructure. The role involves integrating and deploying applications to support smooth, reliable delivery. What you will do Create and enhance cloud infrastructure to meet business requirements Implement and maintain continuous integration and continuous deployment (CI/CD) pipelines Collaborate with engineering, QA, and product teams to streamline deployment processes Optimize systems for stability, scalability, and efficiency Requirements Proven experience building and managing cloud infrastructure Familiarity with CI/CD tools and workflows Strong collaboration skills and an interest in solving technical challenges with others Proactive mindset and ability to adapt to shifting priorities

Join our dynamic team at nix as a Senior Integration Engineer, where you will leverage your extensive experience with MuleSoft to design and implement robust integration solutions. You will play a pivotal role in enhancing our digital infrastructure, ensuring seamless connectivity between various systems and applications.Your expertise will contribute significantly to delivering high-quality integration solutions that meet our clients' evolving needs.

Role overview Miratech is hiring a Senior Network Engineer/Analyst in Kyiv. This role focuses on designing, implementing, and maintaining network infrastructures. The position sits within the engineering department and collaborates with teams across the company to support reliable network operations and strong performance.

Our Mission and VisionAt Solidgate, we are driven by a clear mission: to empower exceptional entrepreneurs in building outstanding internet companies. We strive to support the innovators who are shaping the digital economy by providing them with the financial infrastructure they need. Our ambitious goal is to establish ourselves as the world's leading payments orchestration platform.About the Team and RoleAs a member of the Billing team, you will take charge of the Taxes module, a vital component of our billing system responsible for tax calculations and reporting across various jurisdictions.The product has surpassed the MVP stage and is currently in active use by our customers. With the foundational logic established and a high demand for our services, your focus will be on scaling both functionality and reliability.This position is particularly exciting as you will not be maintaining legacy code; instead, you will be building and shaping a critical system almost from the ground up. You will have a clear path to leadership, overseeing the direction of the Taxes module, making architectural decisions, and expanding your team.Your team will consist of a Product Owner, one Senior Engineer, an Automation QA, and a Tax Manager.Discover our technology stack here.What You Will OwnYou will focus on:Developing tax calculation and reporting logicIntegrating third-party tax providersEnhancing system resilience and uptimeMaking architectural decisions and setting technical directionMentoring engineers as the team growsIn the initial months, your efforts will be directed towards delivering essential tax functionalities and establishing a robust foundation for future product and team expansion.We prioritize automated testing over manual QA—unit, integration, functional, and end-to-end tests are integral to our shipping and scaling processes.You Are a Great Fit If You Have4+ years of backend engineering experience1.5+ years of commercial experience in Go developmentA strong understanding of high-load system designSolid experience with PostgreSQLExperience with cloud technologies and microservices architecture

Join our dynamic team as a Senior Data Engineer in the AdTech unit, where you will drive innovation and enhance data-driven decision-making processes. You will work collaboratively with cross-functional teams to develop robust data pipelines and optimize data architectures.

Speechify is looking for a Senior Software Engineer to join the Core Experiences team in Odesa, Ukraine. This group is responsible for building and refining features that influence how users interact with the Speechify platform. Role overview The Senior Software Engineer will take on projects that shape the core of Speechify's user experience. The work centers on creating scalable and efficient features that directly impact user engagement and satisfaction. What you will do Design and develop core features for the Speechify platform with a focus on scalability and efficiency Collaborate with teams across the company to deliver improvements that increase user engagement Tackle complex technical challenges using deep software development experience Location This role is based on-site in Odesa, Ukraine.

N-iX is a leading global software development service provider that empowers businesses worldwide to create innovative software solutions. Established in 2002, we have brought together over 2,400 technology experts from more than 40 countries, collaborating on transformative projects for industry leaders and Fortune 500 companies. Our areas of expertise include cloud computing, data analytics, AI/ML, embedded software, IoT, and much more, driving digital transformation across sectors such as finance, manufacturing, telecom, and healthcare. Join N-iX and be part of a team where your ideas can make a significant difference.We are looking for a highly qualified and seasoned Senior DevOps Engineer eager to take on a team lead role within our dynamic organization. The ideal candidate will possess a robust background in Platform Engineering with extensive experience managing large-scale infrastructures in AWS. This position demands a deep understanding of contemporary DevOps tools and practices, along with a dedication to cultivating a responsive, communicative, and collaborative work environment.

Join ELEKS, a leader in software engineering and development, as a Senior Data Engineer. We are expanding our team in collaboration with the UK's largest renewable power generator, focusing on sustainable biomass and hydroelectric power solutions. PROJECT OVERVIEWAs part of our team, you will play a pivotal role in leveraging data to drive decision-making and innovation within the renewable energy sector.

Role Overview auto1 is hiring a Senior Java Engineer in Kyiv. This role focuses on building and improving Java applications that support our clients' needs. The team values collaboration and technical skill, and works together to deliver reliable software. What You Will Do Develop and maintain Java-based applications as part of a skilled engineering team Mentor junior developers and support their technical growth Contribute to architectural discussions and technical decisions Help ensure software products meet quality standards before release What We Look For Strong experience with Java development Ability to work well in a team and share knowledge with others Interest in shaping technical solutions and making architectural choices Experience mentoring or guiding less experienced engineers is a plus Location This position is based in Kyiv.

Role Overview Miratech is looking for a Senior Data Engineer in Lviv. This role focuses on designing, building, and maintaining data pipelines and architectures that support the company's analytics and machine learning goals. The Senior Data Engineer will collaborate with teams across the business to keep data accurate and accessible, supporting decision-making at every level. What You Will Do Design and implement data pipelines and architectures Maintain and optimize systems for data integrity and availability Work with cross-functional teams to support organizational data needs Contribute to Miratech's data strategy and analytics capabilities

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.

nix operates a global marketplace that connects users to high-yield savings accounts and a broad selection of investment products from over 400 partner banks. The platform aims to make savings and investing more accessible by removing geographic barriers, offering competitive rates, and providing transparency and convenience. Partner banks also gain access to cost-effective deposit funding and Banking-as-a-Service solutions. Role overview The Senior Java Engineer joins a cross-functional engineering team of 10, focused on integrating transaction accounts from servicing banks into the Raisin platform. This integration supports reliable funding for all products and ensures payments are routed accurately. Collaboration within the team is central to delivering ongoing improvements. What you will do Design, build, and deliver essential services and high-quality solutions for a large-scale online platform and its banking systems. Integrate third-party components into existing Java applications. Define and document software development standards and practices, sharing knowledge with the team. Lead by example in engineering tasks, emphasizing quality and supporting teammates in upholding standards. Conduct detailed code reviews with a focus on best practices, business logic, performance, security, and the broader impact on features or projects. Provide constructive feedback. Research and propose alternative technical solutions when appropriate. Take full ownership of project delivery within the team. Maintain technical documentation and address technical debt proactively. Contribute to the hiring process by participating in technical interviews and evaluating technical challenges. Team and location This position is based in Ukraine and works within a collaborative, cross-functional team structure.

Join SKELAR, a pioneering venture builder transforming the landscape of international tech companies with innovative approaches to venture investments. We collaborate with co-founders to assemble robust teams that launch successful product-based IT businesses, achieving triumph in global markets.We are expanding our team and seeking a Senior Golang 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, creating tailored fashion solutions that empower individuals to express themselves freely.Since our inception in 2024, we have experienced a remarkable growth of four times in just six months. By 2026, we aim to achieve a fivefold increase compared to 2025, supported by a steady user demand and a reliable influx of customers.Why join us now?This is your opportunity to be an integral part of an early-stage team, collaborating closely with founders to shape a product that will transform the fashion tech industry.To excel in this role, you must be a versatile engineer capable of seamlessly transitioning between technologies to address genuine business challenges. Your clients will include marketing teams, designers, and user acquisition managers who rely on your technical expertise to achieve results at a level of 10x.What will you work on?Developing end-to-end MarTech solutions: Creating and scaling internal platforms that our marketing teams will rely on daily.Integrating and orchestrating Generative AI: Designing pipelines for automatic generation of advertising creatives and optimizing marketing processes.Working with Big Data and analytics: Building architectures for collecting, parsing, and processing data from millions of advertisements to generate actionable insights.Automating marketing tasks to enhance efficiency and effectiveness.