Вакансії Backend Developer

Our client is a Swiss leader in online trading, serving over 500,000 clients who can trade more than 3 million products through highly performant and secure platforms. In addition to various online trading products, including stocks, bonds, funds, derivative products, and cryptocurrencies, we also offer Forex, Robo-Advisory, and Mortgage solutions.
Since 2012, we have partnered with the client to develop innovative and cutting-edge digital solutions that help customers achieve their investment goals. Our solutions are continuously evolving, transitioning into atomic microservices and self-contained systems.
The team is a distributed cross-functional group working as a single unit across onshore and offshore locations. It owns the full delivery lifecycle: from feature design and implementation to support and maintenance. Work is split between developing new functionality and evolving existing systems, with rotation based on project priorities. Engineers participate in technical discussions, contribute to design decisions, and are expected to deliver maintainable code and thoughtfully designed solutions.

Responsibilities

• Design and develop modern web applications and backend services.
• Extend and refactor existing systems as part of ongoing product evolution.
• Implement business features and actively contribute to architectural and design decisions.
• Participate in estimations and drive technical improvements as part of the team's development process.
• Conduct code reviews and collaborate with peers to maintain codebase standards.
• Analyze and resolve issues in test and production environments.

Must have skills

• 3+ years of hands-on experience with Java in web application development.
• Experience with Spring Core and Hibernate in a web context.
• Good understanding of RESTful API design and service integration.
• Experience with unit and integration testing (JUnit, Mockito or similar).
• Familiarity with Git or other distributed version control systems.
• Strong communication skills and ability to work effectively in a distributed team setup.

Nice to have

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
• Familiarity and experience with modern Java versions (up to Java 21).
• SQL knowledge; experience with PostgreSQL or Oracle is a plus.
• Experience working with Docker: running applications and managing containerized dependencies.
• Exposure to CI/CD pipelines and tools (Jenkins, Jira, Confluence).
• Comfort working in Unix/Linux environments.

Our team is growing, and we are looking for a talented Senior Backend Engineer. In this role, you’ll work primarily on backend API development using Node.js (TypeScript), while also contributing to our powerful CLI tools written in Go. You’ll have a direct hand in shaping the architecture, scalability, and quality of a system used by modern engineering teams.
Our customer believes that cloud infrastructure should be effortless and invisible, empowering teams to build, ship, and scale without barriers. We’re building the future of cloud consumption. If you’re passionate about building robust APIs, powerful CLI tools, and world-class backend systems – it will be a match.
Come join the company that’s reinventing how teams manage distributed cloud in today’s fast-moving cloud era. We’re on a mission to help organizations automate infrastructure provisioning and enable self-service to accelerate their business.
If you are looking for an interesting product and enjoy being challenged – this is the place for you!

Requirements:

• Bachelor’s degree in computer science or equivalent engineering experience from a distinguished military unit.
• 6+ years of software engineering experience, with 3+ years focused on backend development at scale.
• Expert-level knowledge of Node.js (TypeScript) backend development, with extensive experience building RESTful APIs and working with microservices architectures.
• Strong background in relational databases (e.g. MySQL, PostgreSQL), caching (e.g. Redis, Dragonfly), and cloud services (AWS: S3, RDS, IAM).
• Solid understanding of software architecture, API design, distributed systems, and scalable backend patterns.
• Excellent English communication skills (written and verbal).
• A collaborative spirit and drive for tackling complex technical challenges in a fast-paced startup environment.

Responsibilities:

• Lead backend API development using Node.js (TypeScript) – designing, building, and maintaining scalable services.
• Contribute to CLI development with Go, enhancing tooling that empowers users to interact seamlessly with the platform.
• Architect and optimize backend systems and APIs, ensuring performance, security, and reliability at scale.
• Take complete ownership of projects, from initial definition and design to development, testing, and post-deployment.
• Collaborate closely with a tight-knit R&D team through code reviews, technical discussions, and product planning.
• Uphold coding standards and best practices while influencing architectural and technical decisions.
• Communicate technical concepts clearly across engineering and product teams.

Will be a plus:

• Hands-on experience with Go, particularly in building CLI tools or backend systems.
• Experience with Infrastructure as Code tools like Terraform, Pulumi, or CloudFormation.
• Familiarity with Docker, Kubernetes, and containerized application delivery.
• Experience working with graph databases (e.g., NeptuneDB, Neo4j).

How exactly you can influence the development of the Company:

• participate in development planning
• develop new functionality and support the existing one
• analyse business requirements and ask questions to implement a technical solution
• interact closely with the team, learn from colleagues’ knowledge of the subject area
• make suggestions for technical improvements to the system
• participate in team code review
• cover the functionality with tests (unit, integration, component)
• be responsible for the quality of the product

Challenges for three months:

• get to know the processes and approaches in the company’s work
• implement at least one feature based on the technical design proposed by the Tech Lead, covered by automated tests
• investigate bugs and write tests
• master the business logic of existing services and approaches
• master approaches to designing and writing code within the company
• speed and correctness of task completion

To achieve the results, you will need:

• 3 years of development experience on the .NET platform
• knowledge of C#, .NET Core
• experience with microservice architecture
• experience with message brokers (Kafka/RabbitMQ/Amazon SQS)
• strong understanding and use of OOP and SOLID principles
• experience with HTTP, ASP.NET Core, REST
• experience with relational DBMS, SQL, PostgreSQL
• coverage of functionality with tests
• CI; Docker configuration
• knowledge of English at the Intermediate level

Binariks is looking for a highly proactive and skilled Middle/Middle Strong Flutter Engineer to join the AI team, that enriches the application with AI-based features.
Our customer focuses on the creation of a patient “superchart” – a high-fidelity, comprehensive patient record to provide a more complete and readable patient chart for providers and staff, and ultimately drive advanced intelligence use cases for providers to deliver the best care. The clients of the customer are clinics, individual practitioners etc.
There are several teams on this project. Your future teammates will be: 2 Flutter Engineer, 1 Tech Lead, 1 Node.js Engineer, 1 Full Stack Engineer, 1 QA, 1 BA/Tech Writer, 1 DevOps, and a Project Manager

What We’re Looking For:

• 2–3 years of development experience in an Agile/Scrum environment
• Strong proficiency in Flutter and Dart
• Solid experience with Firebase
• Strong communication skills, capable of effectively discussing technical concepts
• Upper-intermediate level of spoken and written English for daily communication

Responsibilities:

• Develop and maintain a cross-platform desktop application using Flutter for Windows and macOS
• Integrate with RESTful APIs
• Close work with GCP services (e.g., Firebase, etc.)
• Ensure high performance and responsiveness of the application across platforms
• Work in highly concurrent environments with a large amount of data, facing performance, scalability, latency, and resource consumption challenges every day
• Create and maintain detailed technical documentation

Nice to have:

• Experience in the healthcare industry
• Experience with Riverpod

We’re hiring a Senior Backend Software Engineer (Python) ready to take ownership of complex systems and help scale AI-powered media tools used by industry giants. If you’re driven by impact, enjoy tackling distributed infrastructure challenges, and want to contribute to a high-performance product at the forefront of speech technology – this is your chance to build something that’s redefining global content localization.

About the project

Join a deep-tech company transforming the global media landscape with a proprietary AI-driven localization platform. The solution leverages cutting-edge advancements in speech synthesis, emotional voice cloning, and neural machine translation to deliver hyperrealistic multilingual dubbing at scale. Developers work on a robust pipeline combining real-time audio processing, GPU-accelerated inference, and intelligent lip-sync algorithms to preserve the original actors’ performance across languages. The product is used by major studios and streaming platforms to localize premium video content faster, cheaper, and with unprecedented authenticity.

Responsibilities

• Design and develop scalable, high-performance backend services and APIs
• Lead infrastructure implementation using Python and modern frameworks
• Build CI/CD pipelines and infrastructure-as-code across cloud platforms
• Integrate ML models into production-ready backend systems
• Develop large-scale data pipelines for processing audio, video, and text
• Own features end-to-end: from architecture to deployment and monitoring
• Ensure observability, resilience, and service availability

Requirements

• 7+ years in backend software development
• Deep Python expertise with experience in modern frameworks
• Proven cloud DevOps experience (AWS, GCP, Azure) and automation skills
• Solid grasp of distributed systems, microservices, and event-driven architecture
• Experience with Docker, Kubernetes (EKS/ECS), and serverless tech
• Familiar with SQL and NoSQL databases
• Comfortable working in a fast-moving, startup-like environment

Will be a plus

• Knowledge of ML lifecycle and MLOps practices

About client

This is an AI-powered platform designed to support content creators. It enables them to build personalized and interactive services available across multiple devices and platforms. The system functions as an all-in-one space for managing memberships and communities, distributing premium content, and using engagement tools. Everything is brought together in a single environment that can be flexibly configured to meet the needs of each creator.

Qualifications and skills

• Proven experience as a backend engineer (5+ years preferred)
• Strong hands-on experience with Golang (experience with Rust or Java is a plus)
• Experience with relational databases (e.g., Postgres, MySQL)
• Solid understanding of algorithms, data structures, and API design
• Strong communication and ability to collaborate across teams

Nice to have:

• Experience with cloud technologies
• Experience in video streaming or OTT platforms.
• Experience with graphql
• Knowledge of DevOps best practices

Responsibilities:

• Architect, implement, and maintain highly scalable backend systems.
• Collaborate with product, design, and frontend teams in order to build the right solutions.
• Balance short-term deliverables and long-term vision to design solutions that can evolve with the business.
• Write reusable, testable, and efficient code.
• Maintain high development standards through code reviews, documentation, and collaboration.

We’re on the lookout for a passionate Senior Python Developer to join our client’s team in the cybersecurity space. If you love solving tough challenges, playing with state-of-the-art technologies, and shaping powerful cloud-based solutions, this is your chance to make a real impact. You’ll work in a dynamic environment, alongside brilliant teammates, building innovative systems that help protect organizations from ever-evolving digital threats.

About the project

Since the amount of cyber threats and dark web sources is growing daily, products for their elimination are critically needed. Our partner, a high-tech software company from Israel, took on this challenge.
They offer cyber threat intelligence (CTI) solutions for cybersecurity teams to reveal their most critical known and unknown digital risks earlier. The team develops its CTI & Attack SaaS platform to prevent, detect, investigate, and remediate phishing, fraud, data leaks, and external vulnerabilities.
Clients are more than 100 companies worldwide, including Fortune 500 leaders, in financial, retail, gaming, entertainment and media industries.

Responsibilities

• Influence – take part in day-to-day discussions on the direction, design and architecture of our product
• HO End-to-end development of software components, constantly re-inventing and improving our infrastructures and tech-stack to meet our scale expectations from an engineering standpoint
• The ability to create technical designs for complex problems
• Assist other team members with code and design reviews and provide constructive feedback
• Be a part of a team of passionate, hardworking and super-professional Back End developers
• Gain a deep, wide and solid understanding of the World Wide Web (Surface, Deep and Dark parts)
• Improve and promote our innovative tech-stack – play and asses tools we should adopt.
• Work in, out and around AWS
• Work with an amazing group of colleagues and decision makers in various interfaces

Requirements

• 5+ years’ experience in developing complex backend systems
• Proficiency in Python (production environment)
• Demonstrated ability to produce high-performance, maintainable, and reusable code
• Knowledge in high-level design and architectural practices
• Proficiency with cloud technologies and services, such as AWS (EC2, S3, Lambda, Streaming, EMR, EKS)
• Experience with ElasticSearch, MongoDB, Redis, and relational DBs
• Skilled in Kubernetes and Docker
• Agile methodology practitioner
• Experience in a Production SaaS environment
• Knowledge in building web applications using FastAPI

Tech Stack

• SaaS Web Application
• AWS cloud
• Kubernetes & Microservices architecture
• Databases – MySQL, Redis, MongoDB, Kafka
• Monitoring tools – Prometheus, Grafana, Kibana, etc.
• And other related technologies

We are seeking a highly experienced Lead/Principal Engineer to join our client’s engineering team and help build the core of their backend, admin portal, integrations engine, and multi-tenant infrastructure.
Client – is a company that develops a next-generation cybersecurity platform that combines AI-powered threat detection, secure communications, mobile defense, and cloud security. You’ll be building the core infrastructure of a multi-tenant SaaS system – including the admin portal, integrations engine, secure APIs, and real-time log forwarding – helping enterprise clients manage and protect their cloud environments with confidence and compliance.

Experience / Skills required:

• 10+ years of software development experience with a strong background in building large-scale enterprise systems
• Deep expertise in Node.js, TypeScript
• Extensive hands-on experience with API architecture, design, and development at scale
• Strong knowledge of AWS cloud services and cloud-native architectures (experience with Azure is a plus)
• Solid experience with relational and non-relational databases: PostgreSQL and MongoDB (AWS DocumentDB)
• Strong background in enterprise integrations (e.g., SIEM, XDR, Active Directory, or similar systems).
• Strong understanding of network systems
• Exposure to Big Data platforms or strong conceptual knowledge of large-scale data pipelines
• Excellent problem-solving and analytical skills, with the ability to work on complex distributed systems
• Upper-Intermediate English and higher

Nice to have:

• Experience with React/Next.js./Rust/Python
• Familiarity with Azure
• Experience or strong understanding of cybersecurity practices, ideally from projects in security-sensitive or compliance-heavy domains
• Advanced Big Data expertise

Responsibilities:

• Design, develop, and maintain backend systems for enterprise-grade SaaS solutions
• Lead architecture decisions for secure, scalable, and high-performance applications
• Build and scale complex APIs for multi-tenant environments
• Work with Big Data pipelines and integrate threat detection and response engines
• Ensure system security, reliability, and performance across cloud and on-prem infrastructures
• Collaborate with cross-functional teams, including mobile developers, QA, and R&D leadership
• Contribute to the development of admin portals, integrations engine, and secure communication modules
• Mentor and support other engineers, promoting engineering excellence and best practices

Intetics Inc., a leading American technology company specializing in custom software application development, distributed professional teams creation, software product quality assessment, and “all-things-digital” solutions, is looking for a Senior Backend Engineer to join its innovative team.
This is a full-time, long-term remote opportunity for an experienced Python backend engineer with a strong mathematical and optimization background.

Role Description:

The client is building a mobile-first platform that transforms the agricultural supply chain and logistics management through automation, real-time tracking, and intuitive interfaces. The system connects farmers, logistics providers, and business buyers, offering real-time product tracking, order management, route optimization, and business dashboards.
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.
This role is ideal for a backend engineer with strong Python skills, experience with optimization algorithms, and designing scalable, cloud-native systems in production environments.

Technical Responsibilities and Skills:

• Design, develop, and maintain scalable backend services using Python and modern frameworks
• Build and improve algorithms for complex linear/logistics optimization challenges
• Develop secure and reliable RESTful APIs and integrate with cloud services (AWS)
• Implement and maintain containerized services using Docker and Kubernetes
• Ensure backend systems follow security best practices and are cloud-optimized
• Solve algorithmic and mathematical problems related to logistics and scheduling
• Collaborate with the engineering team to maintain system scalability, reliability, and performance
• Follow Agile methodology and participate in code reviews, system architecture discussions

Requirements

• 5–10 years of experience in backend development
• Strong proficiency in Python and Object-Oriented Programming (OOP)
• Experience implementing optimization algorithms using linear programming, graph theory, or dynamic programming
• Solid understanding of scalable backend system architecture in cloud environments (preferably AWS)
• Hands-on experience with Docker and Kubernetes
• Experience designing and developing RESTful APIs
• Deep understanding of backend security best practices
• Excellent problem-solving skills and attention to detail
• Master’s degree in Computer Science or equivalent, with a strong mathematics background