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Senior Python Engineer with Proficiency in Go/Java

N-iX

Full-time|Remote|Ukraine

N-iX is actively seeking a Senior Python Engineer with experience in Go or Java to become a vital member of our dynamic product team, which consists of approximately 8 engineers dedicated to developing a sophisticated and impactful software platform. In this role, you will contribute to both backend and frontend development, constructing scalable backend ser…

Mar 31, 2026

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Senior Java Engineer with Python Expertise

nix

Full-time|On-site|Ukraine

We are seeking an exceptionally talented Senior Java Engineer who also possesses strong Python skills to join our dynamic team. In this role, you will primarily focus on designing, developing, and maintaining high-performance, scalable, and secure applications utilizing Java, while employing Python for automation, scripting, data processing, and integration tasks. This position is perfect for an engineer who excels in Java development but is also comfortable leveraging Python as a supplemental language when necessary.

Apr 2, 2026

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Middle Java Engineer with Python Expertise

N-iX

Full-time|Remote|Ukraine

N-iX is on the lookout for a talented Middle Java Engineer with proficiency in Python to be a part of our innovative team. This role focuses on the design, development, and maintenance of high-performance, scalable, and secure applications using Java, while also leveraging Python for various automation, scripting, data processing, or integration tasks. We are seeking an engineer who excels in Java development and is comfortable using Python where necessary. Key Responsibilities:Design, develop, test, and maintain applications and services utilizing Java as the core technology stack.Produce clean, efficient, and maintainable code adhering to best practices and coding standards.Utilize Python for automation, data manipulation, system integration, and auxiliary services.Enhance applications for optimal performance, scalability, and security.Troubleshoot, debug, and address technical issues effectively.Engage in communication with internal product owners and stakeholders to align on project requirements.Document technical solutions and ensure current knowledge of system architecture.

Apr 2, 2026

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Senior Java Engineer

nix

Full-time|On-site|Ukraine

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.

Apr 23, 2026

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Senior Java Engineer at auto1 | Kyiv

auto1

Full-time|On-site|Kyiv

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.

Apr 20, 2026

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Senior PHP/GO Backend Engineer at TENTENS Tech | Kyiv

TENTENS Tech

Full-time|On-site|Kyiv

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.

Nov 26, 2025

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Senior Principal Java Engineer - Remote in Ukraine

dev2

Full-time|Remote|Kyiv

Join dev2 as a Senior Principal Java Engineer and become a key player in our innovative development team. In this fully remote role, you will leverage your extensive experience in Java programming to design, develop, and implement high-quality software solutions. Your expertise will drive our projects forward, ensuring best practices in software development and architecture.As a Senior Principal Engineer, you will also mentor junior developers, contribute to technical discussions, and influence our technology stack decisions. If you are passionate about Java and looking for a challenging opportunity to make a significant impact, we want to hear from you!

Nov 7, 2021

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Senior Software Engineer (Java) at Innovecs | Ukraine

Innovecs

Full-time|Remote|Ukraine

Join our dynamic team as a Senior Software Engineer specializing in Java!At Innovecs, we pride ourselves on being a leading global digital services provider, with operations across the US, UK, EU, Israel, Australia, and Ukraine. Our expertise spans various sectors, including Supply Chain, Healthtech, Collaboration Tech, and Gaming, delivering innovative software solutions.For five consecutive years, Innovecs has been recognized in the Inc. 5000 list as one of the fastest-growing private companies in the US and has been ranked among the top global outsourcing service providers by IAOP. Our commitment to excellence was recently honored with the Global Good Awards for Employee Engagement & Wellbeing, alongside winning gold at the Employer Brand Management Awards and securing a spot in the Global Top 100 Inspiring Workplaces Ranking.What We Offer You:Flexible working hours and a remote-first approachAttractive compensation packageComprehensive hardware/software setup tailored to your needsAn open-door culture promoting transparent communication and accessibility to top managementHealth insurance, vacation, sick leaves, holidays, and paid maternity/paternity leaveOpportunities for continuous learning through workshops, webinars, training platforms, and engaging eventsVirtual team-building activities and social events that embody the Innovecs lifestyleAre you ready to contribute to our growth? We need YOU!

Feb 27, 2026

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Senior Java Developer at Miratech | Lutsk

Miratech

Full-time|On-site|Lutsk

Join our dynamic team at Miratech as a Senior Java Developer. You will have the opportunity to work on exciting projects that leverage your expertise in Java development.In this role, you will collaborate with cross-functional teams to design, develop, and maintain high-quality software solutions. Your contributions will be crucial in enhancing our products and ensuring the best experience for our customers.

Apr 30, 2026

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Senior Python Engineer with AI Expertise

nix

Full-time|On-site|Ukraine

About Our Client:Join a pioneering SaaS company that specializes in innovative solutions for risk detection and management in clinical trials. Using a sophisticated set of algorithms, our client analyzes clinical and operational data in real-time to uncover anomalies and outliers effectively. Role Overview:As a key member of our rapidly expanding engineering team, which consists of over 100 skilled professionals, you will contribute to the future of data-driven statistics, machine learning, and AI software solutions. Collaborate with a dynamic group of Python developers to tackle significant engineering challenges, including the integration of AI-assisted development practices into our daily workflows. Our backend engineers primarily utilize Python and FastAPI, with a tech stack that includes Kubernetes, Docker, Flask, Pyramid, Git, MySQL, MongoDB, Azure Cosmos DB, Celery, and Temporal. Key Responsibilities: Design, develop, and maintain robust, scalable Python services and APIs. Integrate and enhance AI/LLM functionalities using the OpenAI API and associated tools. Boost development speed by leveraging GitHub Copilot and AI-assisted code review. Implement Specification-Driven Development (SDD) practices to ensure features align with specifications and are thoroughly documented from the outset. Refactor existing codebases and conduct detailed peer code reviews. Address complex performance bottlenecks and architectural challenges on a large scale. Work alongside Product and Design teams to translate user needs into practical technical solutions. Promote engineering best practices, clean code principles, and knowledge sharing within the team.

May 1, 2026

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Go Engineer for Chargeback Management Solutions

Solidgate

Full-time|On-site|Kyiv

Join Our Mission at SolidgateAt Solidgate, we are dedicated to empowering visionary entrepreneurs to create unparalleled internet companies. Our goal is to provide the essential financial infrastructure that innovators require to thrive in the digital economy. We are on an ambitious journey to establish ourselves as the leading payments orchestration platform globally.About Your RoleWe are seeking an enthusiastic and business-oriented Go Engineer to contribute to our dynamic team focused on developing solutions that mitigate fraud-related risks for our clients. You will play a pivotal role in launching our cutting-edge Representment Product, which has the potential to save our merchants substantial amounts of money.If you excel in a fast-paced environment that values high performance and ownership, you will find your place here. We foster a culture of transparency and collaboration, pushing each other to elevate our standards daily.Discover our technology stack here.Your ResponsibilitiesDevelop the Dispute module for efficient data collection from payment systems and enhance clarity for clients.Implement the Representment module by creating user-friendly interfaces and APIs for merchants to submit evidence to payment schemes.Integrate with major global payment providers such as Stripe, Adyen, and PayPal.Launch new products in partnership with Mastercard, Visa, and AMEX.Build the financial infrastructure, focusing on invoicing, billing, and reconciliation at scale.What We Are Looking ForAt least 3 years of experience in backend development.Minimum 1.5 years of experience with Go programming language.Proficient in PostgreSQL database management.Demonstrated experience in working with microservices architecture.Strong understanding of designing high-load systems.Experience with comprehensive test coverage, including unit, integration, functional, and end-to-end testing.A proactive, results-oriented approach to problem-solving.Ability to take initiative and make sound decisions.

Jan 7, 2026

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Senior Java Engineer Specialized in Solr/OpenSearch

nix

Full-time|On-site|Ukraine

We are seeking a talented and experienced Senior Java Engineer with a passion for information retrieval and advanced search technologies. Our client is a Fortune 500 company recognized as a leader in the business-to-business sector, supporting over 3.2 million customers with innovative products in safety, material handling, and metalworking, as well as invaluable services like inventory management and technical support. In this pivotal role, you will connect our core Java application architecture with specialized search infrastructure. You will oversee the complete search lifecycle, from designing data ingestion and indexing processes to building Java APIs for querying data. Importantly, you will fine-tune relevancy algorithms to ensure users can quickly find the information they need. The ideal candidate will possess extensive knowledge of the Apache Solr ecosystem while being open to modern cloud-native search solutions through AWS OpenSearch. Whether maintaining crucial legacy Solr clusters or architecting new solutions on AWS, your mission is to make data easily accessible, speedy, and pertinent.

Mar 31, 2026

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Senior Python Developer

joinus

Full-time|On-site|Kyiv

Join us as a Senior Python Developer where you will play a pivotal role in enhancing our software solutions. You will collaborate with cross-functional teams to design, develop, and maintain high-quality applications. Your expertise in Python and deep understanding of software development principles will be essential in driving innovation within our projects.

Sep 19, 2025

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Senior Python and AI Engineer

Valtech

Full-time|Remote|Ukraine - Remote

Why Choose Valtech?At Valtech, we pride ourselves on being a leading experience innovation company, trusted by some of the most renowned brands globally. Our team enjoys numerous growth opportunities, a culture driven by our core values, international career prospects, and the ability to influence the future of experiences.The OpportunityJoin us at Valtech, where an environment focused on continuous learning, impactful contributions, and professional development awaits you. Whether you are innovating new digital solutions, redefining traditional paradigms, or creating next-gen customer experiences, your contributions will be pivotal in transforming industries.

Feb 27, 2026

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Senior Java Developer

Miratech

Full-time|On-site|Ivano-Frankivsk

Join our innovative team as a Senior Java Developer at Miratech, where you'll play a pivotal role in crafting high-quality software solutions. You will be responsible for developing and maintaining robust Java applications, collaborating with cross-functional teams, and driving best practices in software development.We're looking for someone with a passion for technology and a desire to enhance their skills in a dynamic environment. If you're eager to tackle challenging projects and contribute to our success, we want to hear from you!

Mar 27, 2026

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Senior Java Developer

Miratech

Full-time|On-site|Ivano-Frankivsk

Join our dynamic team as a Senior Java Developer where your expertise will drive innovative solutions and enhance our software capabilities. In this role, you will be responsible for designing, developing, and maintaining robust Java applications. You will collaborate with cross-functional teams to deliver high-quality software that meets both functional and non-functional requirements.

Apr 30, 2026

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Senior Java Developer

Miratech

Full-time|On-site|Zaporizhzhia

Join our dynamic team as a Senior Java Developer, where you will leverage your extensive knowledge of Java programming to create innovative solutions. You will be responsible for developing high-quality software that meets the needs of our clients while collaborating with cross-functional teams to deliver projects on time and within budget.In this role, you will utilize your expertise in Java frameworks, code quality, and best practices to enhance our software development processes. You will also mentor junior developers, fostering a culture of continuous learning and improvement.

Apr 30, 2026

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Senior Java Developer

Miratech

Full-time|On-site|Rivne

Join our dynamic team at Miratech as a Senior Java Developer and leverage your expertise in building scalable, high-performance applications. You will work closely with cross-functional teams to design and implement robust software solutions that meet our clients' needs. If you are passionate about technology and eager to take on new challenges in a collaborative environment, we want to hear from you!

Apr 30, 2026

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Backend Engineer Transitioning to Go at Solidgate | Kyiv

Solidgate

Full-time|On-site|Kyiv

Our Mission and VisionAt Solidgate, our mission is straightforward: to empower exceptional entrepreneurs in building outstanding internet companies. We exist to support the builders — those who are shaping the digital economy — with the robust financial infrastructure they need. Our ambitious goal is to become the leading payments orchestration platform globally.About the Team and RoleWe are in search of a talented Backend Engineer eager to transition to Go and join our team dedicated to creating products that minimize fraud-related risks for our clients. You'll be working on our innovative Representment product, which has the potential to save our merchants significant amounts of money.If you excel in a high-performing team that prioritizes speed, ambition, and ownership, then this is your opportunity. Our culture is rigorous, transparent, and highly collaborative. It may not be for everyone — but if you're ready to elevate your game alongside equally motivated colleagues, this is where you belong.Explore our technology stack here.Your ResponsibilitiesDevelop dispute management systems. Create services that gather dispute data from payment systems and convert it into actionable insights for merchants.Integrate with leading global payment providers. Collaborate with platforms like Stripe, Adyen, and PayPal.Build scalable financial infrastructure. Contribute to systems that facilitate invoicing, billing, reconciliation, and other financial functions.Launch new payment products. Collaborate with partners such as Visa, Mastercard, and AMEX to deliver innovative solutions.Enhance the Representment product. Develop APIs and interfaces that allow merchants to upload dispute evidence and submit it directly to payment schemes.Ideal Candidate ProfileDemonstrates strong ownership and a clear technical perspective (you have mastered one backend language and are ready for a new challenge).Produces production-ready systems, not just individual features.Possesses a solid understanding of high-load system design.Confident in testing (unit tests, integration tests).

Apr 11, 2026

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Senior Java Developer at Miratech | Dnipro

Miratech

Full-time|On-site|Dnipro

Join our dynamic team at Miratech as a Senior Java Developer. In this pivotal role, you will engage in the development of cutting-edge applications, collaborate closely with cross-functional teams, and contribute to our mission of delivering exceptional software solutions. Your expertise in Java and related technologies will be key in driving project success and innovation.

Mar 27, 2026

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