Jobs Backend

We are seeking a passionate Full-Stack Software Engineer with extensive experience in PHP and JavaScript who loves engineering and the product development process. You will be responsible for developing new features, integrating systems, and optimizing and modernizing the existing codebase.

The ideal candidate has experience in:

- PHP 8.X, multiple frameworks and libraries;

- JavaScript from vanilla JS to React and ES14;

- HTML, CSS, SCSS, post-processing, scaffolding systems;

- relational databases, DB schema, and query optimization;

- Linux, Docker, CI/CD, Bash;

- software engineering principles, architecture patterns, application scalability, and low-latency system availability;

- experience with cloud platforms such as Azure;

- problem-solving skills;

- communication and collaboration skills.

You will be responsible for:

- develop, architect, and maintain SaaS applications using PHP and its frameworks;

- implement the frontend using JavaScript (from vanilla JS to modern libraries and frameworks), HTML, and SCSS;

- create and maintain RESTful APIs (SaaS and Proxy APIs);

- design and optimize database interactions (PostgreSQL, AWS DynamoDB);

- write clean, testable, efficient, and maintainable code;

- test and debug code to ensure the reliability and performance of applications;

- collaborate closely with founders and service teams to deeply understand our customers and users.

Seniority:

- university degree (non-course/academy; only technical university education);

- minimum of 7+ years of actual experience (non «freelance», no gaps, counting ONLY years after a university degree);

- your years in IT don’t guarantee your seniority;

- the slope of your learning is MORE important than your total years in IT, but don’t kid yourself;

- this job vacancy is not for newcomers/juniors/entry/majority-mid level, one framework developer, and ONLY for product development folks.

The position is ONLY for Ukrainian citizens. We don’t consider outsourcing, out-staffing, freelancing, or man-in-the-middle schemes, or part-time work; we only hire Core Team Members to the Core Team.

Our customer is a global leader in digital agreement and e-signature solutions, enabling organizations worldwide to securely manage, sign, and automate business-critical documents and workflows. We are looking for a self-motivated software engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customers to derive intelligence and analytics through AI & BI.

As a Senior Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features. You will play a key role in ensuring that our storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks
• Guide and mentor other engineers through design and code reviews

Requirements:

• Extensive experience developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs
• Knowledge of data storage best practices, including security, availability, and compliance
• Availability to fully cover 13:00-22:00 EET working hours from Monday to Friday is a mandatory requirement for this role.

WHO WE ARE:

Volpis is a company of ambitious professionals providing Web & Mobile App Design and Development services for more than 9 years. Regularly listed in the Top IT Outsourcing Companies and Top Custom Software Development Companies on Clutch.co. Being a full-service company, we provide expertise in all phases of the software development life cycle. We’ve successfully covered more than 100 products all over the world. Together, we’ve created a dynamic, fun, inspiring environment where we can be ourselves and grow each day.

Required experience:

• 2 + years of commercial experience.

Required skills:

• Experience working with Golang;
• Strong knowledge of concurrency models and parallel computing;
• Experience with pointers and memory management;
• Experience working with Kafka, RabbitMQ;
• Knowledge of SQL and NoSQL databases ;
• Experience working with MongoDB, Mongoose, PostgreSQL, Redis ;
• Experience designing and developing APIs (REST) ;
• Experience in any cloud services AWS/ Heroku ;
• Software design skills, design patterns ;
• Microservices architecture, Monolith architecture;
• Familiarity with continuous integration and continuous deployment (CI/CD) pipelines;
• Solid knowledge of git;
• Upper-intermediate English level.

Would be a plus:

• Nest.js;
• Node.js.

Responsibilities:

• Support of existing applications;
• Develop projects from scratch;
• Delivering high-quality code.

Your Benefits:

• 15 days paid vacation + 5 public holidays;
• 7 days 100% paid sick leaves;
• Sport and health compensation;
• Flexible working hours;
• Corporate training (internal and external);
• IT Cluster membership;
• Personal Birthday and anniversary gifts;
• Сorporate parties and team-buildings;
• Company legal and accounting support.

We are looking for a Middle .NET Developer with strong .NET fundamentals who is ready to invest in learning the Acumatica Framework (Onboarding guide - https://www.acumatica.com/developers/onboarding-new-acumatica-developers/) and ERP domain. Acumatica development is not generic .NET development - it is a specialized framework built on .NET and tightly coupled with ERP and financial processes.

This role requires a long-term, multi-year commitment, as becoming productive on the Acumatica platform represents a significant investment from both the developer and Sprinterra.

Candidates must have upper-intermediate English proficiency or higher. 

Existing experience with Acumatica or other ERPs is a strong plus but not required.

About Sprinterra

Sprinterra is an Acumatica Partner and active participant in the Acumatica Development Network (ADN) program. We provide consulting and development services based on the Acumatica xRP Platform and Acumatica ERP. Our work ranges from simple UI and screen customizations to the design and development of complete ERP modules, business logic extensions, and complex integrations with third-party systems. Learn more about what we do here: https://www.sprinterra.com/acumatica/knowledge-base/

Technology Stack

• .NET Framework (C#)
• Acumatica xRP Framework
• ASP.NET Web Forms
• MS SQL / T-SQL
• JavaScript, TypeScript, HTML, CSS
• IIS
• Git, Jira

Required Technical Skills

.NET / C# (Strong Required)

• Deep understanding of OOP principles (inheritance, interfaces, polymorphism)
• Practical experience with attributes and reflection
• Generics and advanced type usage
• Delegates, events, anonymous methods, and lambda expressions
• ORM experience (LINQ to SQL and/or Entity Framework)

ASP.NET & Web Architecture

• Hands-on experience with ASP.NET Web Forms
• Understanding of ASP.NET application lifecycle
• Application state management
• Client-side vs server-side execution
• Debugging and profiling using Visual Studio
• Web services and RESTful API development

Front-End

• Solid understanding of JavaScript, HTML, and CSS
• Ability to debug UI and client-side issues

Databases

• Strong MS SQL and T-SQL skills
• Writing and optimizing complex queries (joins, subqueries, aggregates)
• Understanding relational data models and schema design
• Awareness of performance considerations in ERP systems

Infrastructure & Tooling

• IIS configuration and deployment of ASP.NET applications
• Securing and managing IIS environments
• Experience using Git for version control
• Experience working with Jira or similar task tracking tools

ERP & Domain Knowledge

• Willingness to learn ERP and financial concepts (GL, AR, AP, inventory, workflows, posting logic)
• Experience with ERP systems or financial software is a strong advantage

Responsibilities

• Learn and apply the Acumatica xRP Framework and ERP architecture
• Develop customizations, extensions, and integrations for Acumatica ERP
• Design and implement business logic aligned with ERP and accounting rules
• Participate in internal development projects 
• Participate in client projects 
• Follow coding standards, best practices, and delivery processes

Trial Period Expectations

During the trial period, the developer is expected to:

• Complete all required Acumatica Developer Training programs (https://www.acumatica.com/acumatica-developer-training/)
• Obtain relevant Acumatica certifications
• Successfully deliver a test project demonstrating understanding of the framework

Candidates are encouraged to explore Acumatica documentation, community forums, and technical blogs to build familiarity with the platform.

Who This Role Is NOT For

This role is not a good fit if:

• You are looking for short-term or contract-based work
• You prefer frequently changing technologies and frameworks
• You are not interested in ERP, accounting, or business process logic
• You are not willing to invest time in learning a specialized framework
• You expect to be productive immediately without a learning phase
• Your English level is below upper-intermediate
• You are seeking a purely front-end or non-ERP development role

What We Offer

• Long-term career growth in a specialized ERP ecosystem
• Structured Acumatica training and certification path
• Mentorship from experienced Acumatica developers
• Exposure to complex, real-world enterprise and integration projects
   

Welcome to Drawer.AI!

- What we do: AI-driven workflows that let estimators pull quantities and costs from complex PDF drawing sets.  
- Stage: Seed-funded, revenue-generating, aiming for a Series A in 2026.  
- Why join now: Real customers are pushing our roadmap faster than our current front-end team can build.

As a Lead Python Developer at Drawer.AI, you will lead the backend development of our AI-powered platform for the Architecture, Engineering, and Construction (AEC) industry. You will drive technical decisions, mentor engineers, and work closely with Product, AI, and Engineering teams to build scalable, reliable, and high-performance backend solutions.

Key Responsibilities:

• Lead backend architecture and technical decision-making.
• Design, develop, and maintain scalable backend services using Python and Django.
• Review code and ensure high engineering standards.
• Mentor backend engineers and support their technical growth.
• Collaborate with Product, AI, Frontend, and Infrastructure teams.
• Improve system performance, reliability, and maintainability.
• Drive engineering best practices and SDLC improvements.
   

Requirements:

• 6+ years of professional Python development experience.
• 3+ years of experience as a Tech Lead or technical leader.
• Strong hands-on experience with Python and Django.
• Strong experience with PostgreSQL and SQL databases.
• Experience with event-driven architectures and message brokers.
• Experience building production-grade distributed systems.
• Strong experience with AWS.
• Experience designing scalable system architecture.
• Excellent problem-solving, mentoring, and communication skills.

Nice to have:

• Experience with AI/ML-powered products.
• Experience with Docker, Kubernetes, and CI/CD.
• Experience with PDF processing and SVG.
• Experience with NumPy, SciPy, or similar libraries.
• Experience working in B2B SaaS startups.

Join our stellar team at Drawer.AI, where excellence meets opportunity! Experience the exceptional; enjoy a competitive salary and career advancement and the outstanding work environment we take pride in. Elevate your professional journey with us – because we believe in creating success together. Build a better future with us!

WeSoftYou is an Inc. 5000 US-based product development company delivering software for venture-backed startups and enterprise organizations.
WeSoftYou creates web and mobile solutions and custom B2B and B2C applications for various industries and business areas, including Healthcare, e-Learning, Retail, Web3, Fintech, and AdTech.

About the Role

We are looking for a highly skilled Senior Python Developer to join our engineering team and help build scalable, AI-powered backend solutions. In this role, you will be responsible for designing, developing, and maintaining robust backend services, integrating advanced AI capabilities, and working with modern retrieval and knowledge management systems.

You will collaborate closely with product managers, AI engineers, and frontend developers to deliver high-performance applications that leverage Large Language Models (LLMs), external data providers, and intelligent automation workflows.

Responsibilities

• Design, develop, and maintain scalable backend services using Python.
• Build and enhance RESTful APIs using Django REST Framework and FastAPI.
• Integrate and optimize AI services, including Large Language Models (LLMs) and third-party model APIs.
• Develop and maintain Retrieval-Augmented Generation (RAG) systems, including vector databases, embedding pipelines, and retrieval mechanisms.
• Implement AI orchestration workflows using LangChain and related frameworks.
• Integrate multiple external APIs and data providers into backend systems.
• Design reliable, maintainable, and high-performance system architectures.
• Participate in technical design discussions, code reviews, and architectural decisions.
• Ensure software quality through automated testing, CI/CD pipelines, and monitoring practices.
• Troubleshoot and resolve production issues while continuously improving system reliability and performance.

Requirements

• 5+ years of strong commercial experience with Python.
• Proven experience with Django REST Framework and FastAPI.
• Hands-on production experience integrating AI solutions, including LLMs and model APIs.
• Strong knowledge of LangChain and Retrieval-Augmented Generation (RAG) architectures.
• Experience working with vector databases, embeddings, semantic search, and retrieval systems.
• Solid experience integrating multiple third-party APIs and external data sources.
• Strong understanding of software architecture and system design principles.
• Experience building scalable and reliable backend systems.
• Knowledge of CI/CD processes and modern DevOps practices.
• Experience with automated testing and application monitoring.
• Strong problem-solving skills and ability to work independently.
• English proficiency at B2 level or higher — mandatory for daily written and verbal communication with the international team.

What we offer:

📈 Professional Growth opportunities:

• Ambitious goals and interesting projects;
• Regular & transparent performance review and feedback process;
• Possibility for both vertical or horizontal growth (in case you want to try a different path).

😌 Comfortable Working conditions

• Flexible working hours;
• Provision of required equipment;
• Remote working model.

🎁 Benefits program

• 18 paid days off + 2 public holidays;
• Free tax reporting support by our Financial department;
• Help with individual entrepreneurs’ questions and accounting support;
• Financial support and additional days off for various occasions (e.g. marriage, childbirth, etc.);

We are looking for an experienced Senior Full Stack Engineer with Java, Python and React experience to join our development team and contribute to the development of a customized AI-driven platform.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Hand-On full stack development of innovative applications.
• Owning the entire development cycle, including design, architecture, development, and DevOps.
• Working in Extreme Programming methodology with remote pairing.

Requirements:

• BSc in Software Engineering or BS degree in Computer Science.
• 6+ years of experience in the following technologies: Java (must have), Spring.
• 2+ years of experience with Python (must have).
• 2+ years of experience in FE, mainly React (must have), and other modern JavaScript Framework/libraries.
• Experience with LLMs/AI/Prompt Engineering/MCP.
• Experience with Claude.code
• Experience with Data Analytics – big advantage.
• Experience in development in Kotlin – big advantage.
• Experience with Functional Programming and Java Streams.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 3+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container based environments (Kubernetes, Cloud foundry).
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker.
• Self-starter with the ability to appropriately priorities and plan complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with problem solving aptitude.
• Good English - verbal and written.

Please note that this position requires working from 14:00 to 22:00 CET.

Our customer is a global leader in digital agreement and e-signature solutions, enabling organizations worldwide to securely manage, sign, and automate business-critical documents and workflows.

They are looking for a self-motivated software engineer to join us developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance and durability, which enables customer derive intelligence and analytics through AI & BI.

As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

Responsibilities:

• Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
• Build and maintain microservices-based architectures using C#, ASP.NET, and others
• Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions
• Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes
• Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure
• Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products
• Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind
• Identify and address performance bottlenecks and scalability challenges proactively
• Align across teams for designs, communicate and resolve roadblocks

• Guide and mentor other engineers through design and code reviews

   

Required Qualifications:

• Extensive experience 8+ years developing backend services and APIs in C#/.NET
• Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases
• Experience with microservices architecture and distributed systems
• Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow)
• Strong understanding of designing and building scalable, secure, and reliable cloud-native applications
• Experience with designing and implementing RESTful or gRPC APIs

• Knowledge of data storage best practices, including security, availability, and compliance

   

Preferred Qualifications:

• Familiarity with integrating orchestration tools into enterprise software environments
• Experience with performance optimization, cost management, and designing for high availability
• Excellent communication and collaboration skills
• Prior experience mentoring engineers and conducting design/code reviews

• Background in supporting analytics and business intelligence integrations

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for a versatile Web Developer to join our team for the technical support, maintenance, and development of a growing portfolio of web resources for our clients. The workload on this project is dynamic, and due to a recent increase in tasks, we are expanding our team.

📌 Project & Team Overview

Our team handles technical support and web development for various international clients. Requirements and tasks are gathered and managed by our project managers who coordinate directly with the client-side stakeholders.

• Team Structure: 1 Project Manager and 2 Web Developers (part-time). As we operate without a dedicated QA engineer, developers are expected to test their own code before passing it to the PM for final review.
• Format & Duration: Long-term cooperation with a flexible workload that scales based on incoming client requests.

🛠 Key Responsibilities & Tasks

• Hosting & Infrastructure: Deploying dev/staging versions of websites, handling migrations, and managing server settings via hosting panels (e.g., Plesk).
• CMS Management: Updating WordPress core and plugins, sourcing and configuring new plugins, and ensuring website security and stability post-update. Managing and tweaking Shopify stores.
• Version Control & Databases: Working with Git, restoring websites from specific backup dates to safely test bugs, and managing environments.
• Frontend & Layouts: Creating new pages, posts, and blocks; building custom modules and promoting component reuse.
• Integrations & Bug Fixing: Troubleshooting and resolving various technical issues. Setting up forms, integrating payment gateways, email delivery systems, and notifications.
• Analytics, SEO & Security: Configuring web analytics and tracking (GA4 / GTM), tracking events, goals, and form submissions. Handling basic SEO optimization, domain management, and vulnerability patching.

🎓 Technical Requirements

Must-Have Experience:

• Strong proficiency in WordPress: working with page builders, configuring themes/plugins, and the ability to modify them.
• Hands-on experience with WordPress Multisite.
• Experience overriding templates within a child theme.
• Proven track record of creating custom widgets for page builders.
• Solid skills in Git, Docker, and assets compilation/build processes.

Nice-to-Have Skills:

• Experience with DNS management and domain propagation.
• Basic remote web server administration (Ubuntu via SSH).
• Experience writing SQL queries and working with phpMyAdmin.

💼 What We Offer:

• 100% remote working environment.
• Flexible hours that adapt to project workload shifts.
• Direct collaboration in a streamlined, agile team without unnecessary bureaucracy.

Привіт!
Ми — Taxbox, фінтех-продукт у складі Checkbox Group. Наш продукт створений для підприємців та спрощує ведення податкових і звітних процесів в одному сервісі. Taxbox допомагає зручно керувати щоденними задачами ФОП, контролювати податкові події та працювати з фінансовими процесами онлайн.
Зараз шукаємо PHP Developer (Symfony), який допоможе розвивати та масштабувати наш продукт.

Наші очікування від кандидата:

• Досвід роботи з PHP 8+
• Глибоке розуміння OOP, SOLID, DRY, KISS
• Практичний досвід з Symfony 5/6/7
• Досвід створення REST API (знання API Platform або Symfony Serializer)
• Вміння працювати з Doctrine ORM (створення Entity, Migrations, QueryBuilder, Relations)
• Знання SQL, досвід роботи з PostgreSQL або MySQL
• Робота з Composer, розуміння автозавантаження класів
• Досвід написання юніт- та інтеграційних тестів (PHPUnit, Symfony Test Framework)
• Робота з Git (pull request, branching strategy, code review)
• Знання Docker на рівні розгортання dev-оточення
• Розуміння черг (наприклад, Symfony Messenger, RabbitMQ, Redis Queue)
• Робота з HTTP-клієнтами (наприклад, Symfony HttpClient, Guzzle)

• Розуміння CI/CD (GitHub Actions, GitLab CI, Jenkins тощо)
• Розуміння ElasticSearch, Redis, WebSockets
• Розуміння принципів безпеки (OAuth2, CSRF, XSS, CORS, JWT)

• Хороші комунікативні навички та вміння працювати в команді
• Вміння аргументовано обговорювати технічні рішення та брати участь у code review
• Проактивність та відповідальність за результат
• Аналітичне мислення та здатність пропонувати технічні покращення
• Самоорганізація та вміння працювати з дедлайнами

• Повністю віддалений формат співпраці
• 24 робочі дні відпустки та оплачувані лікарняні
• Стабільну виплату зарплати двічі на місяць
• Підтримку професійного розвитку: курси, конференції, сертифікації
• Курси англійської мови
• Мінімум бюрократії в ухваленні рішень

Senior Python Engineer (FinTech)
 

We are looking for a Senior Python Engineer (Remote) to join our engineering team and help build a modern financial technology platform used by businesses and consumers across the UK.

You'll work alongside experienced engineers and product leaders to develop scalable backend services, contribute to architectural decisions, and deliver reliable cloud-based solutions.

What You'll Do

• Design, develop, and maintain backend applications using Python and Django.
• Build secure, scalable APIs and services for a high-traffic fintech platform.
• Work closely with engineers, product teams, and technical leadership to deliver new features.
• Participate in technical planning, architecture discussions, and sprint execution.
• Deploy and maintain cloud infrastructure on AWS.
• Optimize application performance, reliability, and security.
• Review code, share technical knowledge, and help maintain engineering best practices.

Tech Stack

• Python 3.11
• Django 4.x
• PostgreSQL
• AWS (Lambda, ECS, RDS, DynamoDB, EventBridge)
• Docker
• Terraform
• Pandas
• Polars

What We're Looking For

• 4+ years of professional Python development experience.
• At least 1+ years building applications with Django.
• Strong experience developing cloud-native applications on AWS.
• Solid understanding of REST APIs, databases, and backend architecture.
• Experience working in collaborative Agile teams.
• Good communication skills with professional English (B2 or above).
• Comfortable mentoring teammates and participating in code reviews.

What We Offer

• Remote
• Competitive salary with performance-based rewards.
• Clear opportunities for career progression and technical growth.
• Training budget for courses and professional certifications.
• Regular technical knowledge-sharing sessions.
• A collaborative environment with experienced engineers working on a large-scale fintech product.

About the company
We are a small profitable SaaS product team with high-ownership culture, running data retrieval and e-learning services for US and EU market.

About the role
We're seeking an engineer experienced in Payment orchestration. It will be mostly Backend work with some easy Frontend tasks.
Our tech stack is mainly Java Spring Boot for Backend, Astro and different JS frameworks for Frontend.

Responsibilities
- Working with API integrations with multiple PSPs
- Creation and improvement of payment routing logic
- Supporting subscription billing logic
- Making sure the code is resilient and observable
- Working on tokenization flows
- Development of webhook handlers

Requirements
- Strong experience with Payment orchestration at specialized platforms or large E-commerce products

- Experience with Java 5+ years
- Experience with vault and network (Visa, MC) card data tokenization
- Experience with integrating PSPs (Stripe, Adyen, Venmo, etc.)
- English B2

Advantage
- Experience working on payment orchestration platforms

- Experience developing payment orchestration functionality from scratch

Benefits
- Unlimited PTO policy
- Corporate devices (laptop, power station)
- Claude Code subscription

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Backend Engineer (Python).

Requirements:
• 3+ years of commercial backend development experience
• 2+ years of hands-on experience with Python
• Strong experience with Django, FastAPI, and Flask
• Deep understanding of microservices architecture and distributed systems
• Experience with idempotency, Saga/Outbox patterns, circuit breakers, and retry mechanisms
• Strong PostgreSQL knowledge, including transactions, locking, and performance optimization
• Experience with messaging systems such as Kafka, RabbitMQ, AWS SQS/SNS, or similar
• Strong experience with automated testing and Pytest
• Good understanding of application security principles, including OWASP, authentication, authorization, and API security
• Upper-Intermediate English level (B2+)

Nice to have:
• Experience in fintech, banking, or payment systems
• Experience building and supporting high-load production systems

What the company offers:
• Constant and interesting work with foreign clients
• Flexible working hours
• 50% cost compensation of sports, English lessons
• Annual paid 30 days vacation and paid sick days
• Medical insurance policy

Responsibilities:
• Design, develop, and maintain scalable backend services using Python
• Build and support microservices-based architecture
• Develop reliable and fault-tolerant distributed systems
• Design and optimize PostgreSQL databases and queries
• Implement messaging and event-driven solutions using Kafka, RabbitMQ, AWS SQS/SNS, or similar technologies
• Ensure high code quality through automated testing and code reviews
• Maintain application security and follow best practices for secure software development
• Collaborate with cross-functional teams to deliver new features and improvements
• Troubleshoot, optimize, and scale production systems

About the Project:

Our client is a UK-based fintech company building and scaling financial services used by hundreds of thousands of businesses. The team focuses on developing secure, reliable, and highly scalable backend systems that power critical financial operations. This role offers an opportunity to work on complex distributed architectures, high-volume transaction processing, and modern cloud-native technologies in a fast-growing product environment.

Job Title: Senior Backend Java Developer (IB / Partner Platform)
Company: VCG Tech Limited
Location: Remote
Employment Type: Full-Time

Role Purpose

This role owns the backend services behind our introducing-broker and partner program: partner onboarding, multi-level partner commission and rebate logic, and the reporting that partners rely on to understand their earnings. These services sit at the intersection of trading activity and partner payouts, so getting them right matters commercially and to the trust partners place in the program. You will design, build and operate Java microservices that must be accurate, reliable and maintainable on a live financial platform.

Day to day you will write and review clean, well-tested code, design sound APIs, and integrate with the trading platform and other backend services through REST and event-driven messaging. You will work in a focused, remote product team, collaborating closely with fellow engineers, product and QA, and sharing responsibility for the reliability of what you ship. As a senior individual contributor you will set a high bar in code review, mentor through example, and report into the team's engineering lead.

Key Responsibilities

Build and Own Partner Platform Services

• Design, build and maintain Java microservices for partner onboarding, commission/rebate processing and reporting
• Translate partner-program requirements into well-structured, testable services with clear ownership boundaries
• Design clean, versioned REST APIs and stable contracts that other teams can depend on
• Model and evolve relational data to keep partner and reward records accurate and auditable
• Take features from design through implementation, release and operation in production

Integrate Across the Platform

• Integrate with the MetaTrader 5 trading platform to source the trading activity that drives partner rewards
• Build resilient integrations with other backend services across onboarding, payments and reporting
• Design event-driven flows using messaging to keep data consistent across service boundaries
• Handle failure modes, retries and idempotency so financial calculations stay correct under real conditions

Reliability on a Live Financial System

• Treat correctness as a first-class requirement so commission and rebate outcomes are accurate and reproducible
• Instrument services with logging, metrics and alerting to detect and diagnose issues quickly
• Contribute to on-call readiness, incident response and post-incident improvements
• Identify and address performance, scalability and data-consistency risks before they reach production

Engineering Quality and Collaboration

• Write clean, well-tested code with meaningful unit and integration coverage
• Provide thorough, constructive code review and help raise standards across the team
• Maintain and improve CI/CD pipelines for fast, safe and repeatable releases
• Document key decisions, APIs and operational runbooks so the team can move quickly

Required Experience & Skills

• 5+ years of professional backend development in Java, including senior-level ownership of production services
• Deep, hands-on experience with Spring Boot and building microservices
• Strong API design skills and practical experience with REST
• Solid command of SQL and relational database design, including data modelling and query performance
• Experience with messaging and event-driven architectures, including delivery guarantees and idempotency
• Proven track record building and operating reliable services where correctness and data integrity matter
• Hands-on experience deploying and running services on AWS
• Proficiency with Docker and container-based workflows
• Strong testing discipline across unit and integration levels, with CI/CD and Git in everyday use
• Clear communicator who collaborates well asynchronously in a remote team and gives effective code review

Nice to Have

• Experience in trading, brokerage or fintech, especially CFDs/FX
• Familiarity with the MetaTrader 5 platform and its data model
• Experience building partner, affiliate, referral or commission/rebate systems
• Exposure to Kubernetes for orchestrating containerised services
• Experience with observability tooling such as Grafana, Prometheus or CloudWatch
• Familiarity with infrastructure-as-code using Terraform
• Experience working with payments flows such as deposits and withdrawals
• Comfort working with Jira and Confluence in a product-team setting

On behalf of our Client from France, Mobilunity is looking for a Fullstack Engineer.

Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and register new bookings. You can view all your bookings, day after day, wherever you are and optimize your restaurant’s occupation rate. Our client offers a commission-free booking solution that guarantees freedom above all. New technologies thus become the restaurateurs best allies for saving time and gaining customers while ensuring a direct relationship with them.

Their goal is to become the #1 growth platform for Restaurants. They believe that restaurants have become lifestyle brands, and with forward-thinking digital products, restauranteurs will create the same perfect experience online as they already do offline, resulting in a more valuable, loyalty-led business.

Requirements:

• 5+ years of professional software development experience, with PHP/Laravel as your primary backend stack
• Strong SQL knowledge – you write queries, understand indexes, and can reason about query performance
• Experience with React or NestJS
• Proven ability to articulate and justify architectural decisions: weighing trade-offs around scalability, maintainability, and explaining the reasoning clearly to peers and stakeholders
• Fluency with REST API design and experience consuming or building JSON integrations
• Knowledge of cloud infrastructure (AWS) and containerization (Docker)
• Comfortable working in Git-based workflows with pull requests, branches, and CI gates
• Active user of AI development tools (Claude Code, Cursor, Copilot, or similar) – you’ve integrated these into your daily workflow and are curious about pushing them further
• Strong product mindset with the ability to contribute to feature design and product decisions
• A track record of working in Agile environments with cross-functional teams
• Upper-intermediate to advanced English proficiency

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

🐳 Come on board, and let’s grow together! 🐳