We are looking for a Senior Python Developer who is ready to scale and grow with us.
If you’re passionate about clean code, scalable backend architecture, and excited to build something impactful, we’d love to meet you!
What will you do?
• Contribute to the full backend lifecycle, from architecture design to production deployment;
• Design, develop, and maintain RESTful APIs using Python, Flask, FastAPI, and SQLAlchemy;
• Implement microservices architecture with message brokers and API gateways;
• Implement authentication and authorization with industry-standard encryption and access control;
• Optimize backend services for performance and efficiency, identifying bottlenecks and implementing solutions to improve response times and resource utilization;
• Implement complex algorithms and data structures to handle data processing, operations research (OR), recommendation systems, and optimization problems;
• Deploy and scale services on GCP (Cloud Functions, Cloud Run, Kubernetes); containerize with Docker;
• Design and optimize database schemas using PostgreSQL/MySQL and integrate Pandas/NumPy for analytics and ML;
• Document API specifications using OpenAPI (formerly Swagger);
• Collaborate with frontend, data science, and DevOps teams to align backend with product goals;
• Maintain engineering standards through code reviews, documentation, and knowledge sharing.
Requirements:
• 7+ years of commercial experience in backend development with Python;
• Upper-Intermediate English (B2 or C1) for comfortable verbal team communication.
• Strong hands-on experience with Python, Flask, and SQLAlchemy, Pandas, NumPy;
• Proficiency with Docker and Kubernetes;
• Expertise in software architecture and design patterns, with a proven track record of solving complex technical and performance problems;
• Strong understanding of algorithmic complexity, optimization techniques, and best practices for designing efficient algorithms to solve complex problems;
• Proven ability to handle complex, loosely defined business logic and structure intricate processes cleanly;
• Solid grasp of software architecture and design patterns, with a track record of solving complex technical and performance problems;
• Autonomous in architectural decision-making, comfortable owning hard problems end to end;
• Bonus points if you’ve worked in medical or sports domains.
Why Solid Software?
• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.
Professional growth:
• Onboarding and mentorship program with a dedicated onboarding guide built by our team;
• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don’t have it);
• Professional and constant feedback.
We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.
Apply now and help us shape what comes next!
Launch Your IT Career: Become a Junior Test Automation Engineer in 4 Months
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Are you a final-year student or recent graduate from a tech university? Want to break into IT but don’t know where to start?
Join an intensive Java Test Automation training program from the international company Solvd Inc.
In just 4 months, you’ll gain in-demand skills and a real opportunity to join our team.
What You’ll Get:
✅ We’re Looking For:
“If we had this kind of course when I was in school, I wouldn't have wasted time on pointless internships.”— Solvd mentor
Apply now and take your first step into IT:
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A key component of the platform is OLA (Optimizing Logistics Algorithms) – the system responsible for matching supply and demand, calculating optimal routes, quantities, and quality levels, and coordinating logistics execution.
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We are a Ukrainian-born Travel and Hospitality Technology Consulting company, partnering with online travel agencies, travel management solution providers, and startups worldwide. With expertise across Travel Tech, Data Science, UI/UX, Business Analysis, and Software Engineering, we’ve successfully delivered over 300 projects.
We are now seeking a Backend Engineer to join one of our client projects focused on building scalable, intelligent systems that redefine customer engagement. You’ll play a key role in designing cloud-native services, integrating AI-driven APIs, and ensuring that the platform is reliable, high-performing, and ready for large-scale usage.
The team is developing a next-generation platform for customer engagement powered by generative AI. The solution enables travel and lifestyle companies to deploy intelligent, always-available digital agents that provide personalized support and seamless brand interactions at scale. By combining advanced GenAI models with a proprietary learning engine and deep integration into business systems, the platform helps brands create efficient, consistent, and meaningful conversations with their customers.
Symphony Solutions is a Cloud and AI-driven IT company headquartered in the Netherlands. We are a premier software provider of custom iGaming, Healthcare, and Airline solutions. Devoted to delivering the highest quality of service, we offer our expertise in full-cycle software development, cloud engineering, data and analytics, AI services, digital marketing orchestration, and more. Since our founding in 2008, Symphony Solutions has been serving many international clients primarily in Western Europe and North America.
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AI companion (assistant) on your shoulder who’s always watching and giving you insights into what’s happening and what you want to achieve. Its mission is to empower users to effortlessly capture their thoughts, conversations, and ideas via voice, store them securely, retrieve insights through smart AI-powered search, and receive personalized coaching prompts, respecting privacy and user control. Team: 2 BE (Python), 1 Mobile (Kotlin).
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We’re looking for a Senior Python Developer to help our energy tech client transform access to clean and reliable energy in emerging markets.
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In this role, you’ll contribute to backend development that directly supports operational efficiency, energy accessibility, and innovation across the energy sector in underserved regions.
We’re expanding our capabilities in applied AI and conversational interfaces and are seeking a motivated Junior Python Developer to grow with us.
As a Junior Python Developer, you’ll join a dynamic team and participate in the full software development lifecycle. You’ll write efficient, testable code following best practices and contribute to meaningful projects. You’ll also get hands-on exposure to building AI-powered agents and chatbots – from simple prototypes to production-ready features – under the guidance of senior engineers.
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