Jobs Developers

Boosty Labs is a premier blockchain development company with broad technical expertise and over 150 highly skilled developers and strategists. Founded in 2017, Boosty Labs has completed 250+ projects and collaborated with numerous industry giants.
Join us as a Senior Blockchain Engineer — Node.js+solidity

Requirements:

Backend part

• Strong Node.js / TypeScript experience (NestJS preferred).
• Experience building high-frequency bots that interact with blockchain.
• Understanding of RPC optimization and multicall strategies to handle millions of calls/day.
• Experience with async error handling, retries, and observability.

• Familiarity with transaction building and gas optimization for automated operations.

   

Blockchain part

• Strong understanding of Solidity smart contracts.
• Experience with contract state reading: callStatic, view functions, and event logs.
• Ability to trace calls and debug contract interactions (using tools like Foundry, Tenderly, or Etherscan traces).
•  Knowledge of DeFi primitives: vaults, lending/borrowing, swaps, collateralization.
• Ability to write efficient contract interaction logic (batching, multicall, caching).

What we offer:

• Remote working format
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes
• Psychologist consultations

Recruimet process: Recruitment Interview - Techncial Interview - Client Interview

Build the core engine of a regulated digital asset platform.
 

We’re building a next-generation, regulated crypto platform focused on fiat on/off-ramps and Spot trading. Unlike many crypto startups, we are not experimenting - we are building a production-grade, compliant system designed for scale, auditability, and long-term growth.

As a Backend Engineer, you won’t be maintaining legacy APIs or writing simple CRUD endpoints. You’ll design and build the financial core of the platform - the services responsible for trading, ledger integrity, wallet management, and integrations with global providers.

Our stack is modern. Our architecture is clean. Our ambition is serious.

Responsibilities

• Designing and developing backend services (API-first architecture)
• Building trading, wallet, and ledger modules
• Integrating with OKX (REST/WebSocket), Fireblocks, Sumsub, and banking connectors
• Ensuring transactional integrity and financial correctness
• Implementing authentication, MFA, session management
• Creating audit logs and compliance-ready flows
• Writing clean, testable, maintainable TypeScript code
• Participating in architecture discussions and technical decisions
  
   

Your Role

• As a Senior Backend Engineer, you’ll:
• Design modular backend services in Node.js & TypeScript
• Build a high-integrity double-entry ledger system
• Implement trading order lifecycle (validation → routing → fills → reconciliation)
• Develop exchange adapters (OKX first, more later)
• Ensure idempotency for all financial operations
• Implement Redis-based quote locking for conversions
• Support mobile-first API architecture (versioned, backward compatible)
• Collaborate with frontend and mobile teams
• Contribute to infrastructure and deployment decisions
• You will own meaningful parts of the system - not just tickets.

Requirements

• 3+ years of backend development experience
• Strong Node.js and TypeScript expertise
• Experience with relational databases (PostgreSQL or similar)
• Understanding of transactions, concurrency, idempotency
• Experience integrating third-party APIs
• Knowledge of Redis and caching strategies
• Experience building secure authentication systems (JWT, refresh tokens, MFA)
• Strong communication skills in English (B2+)

Will be a plus

• Experience in FinTech / crypto / trading platforms
• Familiarity with exchange APIs (OKX, Binance, etc.)
• Experience building financial ledger systems
• Knowledge of message queues (Kafka, RabbitMQ, SQS)
• Experience with cloud infrastructure (AWS preferred)
• Understanding of reconciliation processes in financial systems
• Experience building Admin panels with RBAC

We Offer

• Office, Hybrid –  flexible hours
• Collaborate with top-tier clients
• 18+4 paid days off, no matter your contract
• Lawyer Services
• Accounting Support
• MacBook Pro + premium tools
• Annual learning budget (including GenAI courses or conferences)
• Career growth path
• Projects with visible, real-world impa

Open Role

We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

The position is open to candidates based in Lviv and can be performed either remotely or from our office.

Responsibilities

• Implement new APIs and extend existing ones.
• Integrate with third-party providers, including payment and gambling services.
• Develop new features using React/Redux for customer-facing applications.
• Design and implement architecture collaboratively with the team.
• Identify system improvements and implement them.
• Enhance test coverage and CI/CD pipelines.
• Adopt innovative technologies and tools to improve the platform.
• Migrate old React app to Next JS
• Migrate task based backend service to event based architecture on top of Kafka

Requirements

• Experience: Minimum 5 years of web development experience.
• Frontend: Proficiency in React.js, Redux, Next.js.
• Backend: Strong experience with Node.js, NestJS.
• Database: MongoDB, Redis.
• Messaging: Kafka, WebSockets.
• Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
• DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
• Authentication: JWT, Customer.io.
• Version Control: Git, GitHub, GitHub Actions.
• CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
• Smart Contracts: Previous experience with developing smart contracts is a plus.
• Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

Our Benefits

• Flexible working hours & remote job options.
• Office facilities in Lviv.
• Paid vacation and sick leave.
• Fun and friendly team environment.
• Opportunities for personal and professional growth.
• Up to 100% reimbursement for participation in core courses and conferences.
• Salary bonuses.

Why Join Us?

If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

Open Role

We are looking for a Senior Full Stack Engineer to join our team in Lviv. If you are passionate about blockchain technology, gaming, and working with a proactive and experienced team, we welcome you to join our project!

The position is open to candidates based in Lviv and can be performed either remotely or from our office.

Responsibilities

• Implement new APIs and extend existing ones.
• Integrate with third-party providers, including payment and gambling services.
• Develop new features using React/Redux for customer-facing applications.
• Design and implement architecture collaboratively with the team.
• Identify system improvements and implement them.
• Enhance test coverage and CI/CD pipelines.
• Adopt innovative technologies and tools to improve the platform.
• Migrate old React app to Next JS
• Migrate task based backend service to event based architecture on top of Kafka

Requirements

• Experience: Minimum 5 years of web development experience.
• Frontend: Proficiency in React.js, Redux, Next.js.
• Backend: Strong experience with Node.js, NestJS.
• Database: MongoDB, Redis.
• Messaging: Kafka, WebSockets.
• Testing: Experience with Jest, React Testing Library, Playwright framework for UI and API automation.
• DevOps: Familiarity with Docker, Cloudflare, Nginx, PM2, New Relic.
• Authentication: JWT, Customer.io.
• Version Control: Git, GitHub, GitHub Actions.
• CI/CD: Familiarity with CI/CD tools and practices (GitHub pipelines preferred).
• Smart Contracts: Previous experience with developing smart contracts is a plus.
• Education: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Skills: Excellent problem-solving and analytical skills, strong communication and collaboration abilities.

Our Benefits

• Flexible working hours & remote job options.
• Office facilities in Lviv.
• Paid vacation and sick leave.
• Fun and friendly team environment.
• Opportunities for personal and professional growth.
• Up to 100% reimbursement for participation in core courses and conferences.
• Salary bonuses.

Why Join Us?

If you are looking for a proactive, smart, and experienced team working on innovative and extraordinary projects, we welcome you to join us!

Our company is driven by a desire to constantly grow, develop, and learn new things. We dare to think bigger to drive you to bigger results.

SKyPRO mainly works with the OpenText IDM. However we are entering other markets and our own software is already working with other platforms than just eDirectory and Active Directory. 
We are looking for someone who is either already experienced with IDM or has some experience with connecting different databases and is willing to learn and grow with us.
 

• MUST! Spoken Intermediate (B1-B2) English (you will work with clients from all over the world);
• 2+ years of experience.

Your Mission:
In general: connect different databases and data sources with one another.

• Creation and maintenance of drivers on the Opentext Identity Management platform (OpenText IDM, NetIQ IDM).
• Creation and maintenance of workflows on IDM User Application Portal platform.
• Technical problem-solving: Analyze requirements, identify interdependencies, and develop robust IAM solutions.
• Manage your projects and deliver reliable results.

What you bring:

• Degree in Computer Science, Engineering, or equivalent qualification
• Solid software skills:
• DirXML (mostly visual programming in NetIQ IDM Designer);
• XPath + XSLT;
• JavaScript (ECMA Script 1.0) + Java (for appshim development mostly);
• RegExpr;
• Knowledge of IAM protocols (LDAP, SAML, OAuth);
• Linux/Unix power user skills will be good.
• Strong technical understanding & problem-solving skills
• Attention to detail, willingness and ability to learn/self-educate
• German proficiency (B1 and higher) will be a nice bonus:)

What we offer:

• Remote working and flexible hours;
• Good income in line with the industry standards;
• Personal development – expert coaching & training;
• An open-minded, international team in an IT company that does business all over the world;
• State-of-the-art tech – work with OpenText, Cidaas, Nexis & our ACDI tool;
• Fast start – position open immediately;
• Vacation — 24 days a year, paid sick leave.

Project Description
We are transforming our fleet management platform and data processing infrastructure from a monolithic application to a modern, event-driven microservices architecture. This includes shifting from a tightly coupled relational database to a scalable, multi-tenant event stream platform and Kubernetes operators development.

Job Description

• We are looking for a strong Senior Backend Engineer to help evolve our platform into a multi-tenant, event-driven architecture.
• You can come from any mature backend background (Java, .NET, Node.js, Rust, Python, etc.), but you must be willing to switch to Go, as our backend services are developed in Go.
   Prior Go experience is not required, but you need to be comfortable ramping up quickly and writing production-grade Go code.
• The core requirement is strong distributed-systems expertise and hands-on experience with event-streaming technologies such as Pulsar or Kafka.

Experience Level: 5+ years of backend engineering

Responsibilities

• Design and maintain distributed microservices (Go-based environment).
• Work with event-streaming systems such as Apache Pulsar or Kafka.
• Deploy and operate services in Kubernetes across cloud environments.
• Ensure observability: logs, metrics, tracing, and reliability.
• Participate in architecture discussions, code reviews, and performance optimization.
• Collaborate with Data Engineering, Platform, and DevOps teams.

Requirements

Core Backend Skills

• 5+ years of backend development in any production language: Java, .NET, Node.js, Python, Rust, Elixir, Ruby, etc.
• Strong experience with event-driven systems: Apache Pulsar, Kafka or similar.
• Experience designing and maintaining distributed microservices.
• Solid understanding of concurrency, scalability, and high-throughput system design.

• Willingness to adopt Go as the primary language for the project.

   

  Cloud & Deployment

• Practical experience with Kubernetes operators, CRDs, and Helm.

• Understanding of cloud CI/CD systems and delivery pipelines (GitHub Actions).

  Data

• Experience with PostgreSQL and Redis.
• Understanding of Data Engineering concepts, including ETL/ELT and streaming workflows.

Nice to Have

• Experience with Go (Golang).
• Experience with C/C++ (networking, concurrency, high-performance systems).
• Experience with observability stacks: Prometheus, Grafana, OpenTelemetry.
• Experience building multi-tenant architectures.
• Python experience for data workflows.

What you’ll work on

• Build web applications using React and related front-end technologies
• Implement new features and maintain existing functionality
• Optimize performance and improve code quality
• Solve technical challenges and contribute to internal knowledge sharing

• Collaborate closely with the back-end team

   

Experience that will help you succeed

• Strong knowledge of JavaScript (ES6+) and TypeScript
• Solid experience with React or another modern front-end framework
• Ability to use AI tools (ChatGPT, Claude, etc.) to speed up development
• Strong HTML/CSS skills
• Experience working with REST and/or GraphQL APIs
• Experience with Git
• Ability to write clean, maintainable code following best practices
• Nice to have: Bootstrap, React-Bootstrap, Material UI, or Tailwind CSS
• English level: Intermediate or higher
• Please include "Hola Peppernode!" in your response

We offer

• Interesting projects with a modern tech stack
• Fully remote work
• Professional growth opportunities
• Competitive salary with performance-based reviews
• Flexible working hours

Job Description

• 4+ years of experience as .Net developer. 
• Proven experience in working with architects from the client-side
• Proven experience with Azure, Azure DevOps
• Proven experience working on a microservice-based project
• Ability to mentor mid-junior engineers
• OOP Development, Design Patterns, Best Practices
• Good English to work with clients directly

Job Responsibilities

• Strong problem-solving and follow-up skills; must be proactive and take initiative
• Professionalism and ability to maintain the highest level of confidentiality
• Create robust code and translate business logic into project requirements
• Develop code using development best practices, and an emphasis on security best practices
• Leverage technologies to support business needs to attain high reusability and maintainability of current and newly developed systems
• Provide system design recommendations based on technical requirements
• Work independently on development tasks with a minimal amount of supervision
• Write effective unit tests and integration tests to ensure high-quality software delivery
• Support Lead, Scrum Master and PO

Department/Project Description

New long-term project for an Energy client, where we will create a microservice platform to support various business cases. You will be part of a team, where we'll have C# engineers, AQAs, POs, and Scrum Masters.

Skill Category

.NET

Keyskills - Must Have

• C#
• .NET

Looking for a Middle/Middle Strong Fullstack Java Developer to join our team. We are building a platform for fast and convenient purchase of tickets for various music and sport events. Users are provided access to a wide selection of concerts where they can find performances by their favorite artists, review event dates and locations, and buy tickets in real-time.

Requirements:

• 3+ years of experience in Java development.
• 2+ years of Spring framework and building Spring web applications.
• Understanding and experience developing and deploying microservices.
• Experience developing integration layers (using REST interfaces, OpenApi, Kafka, GraphQL).
• Commercial experience with frontend development (e.g., React, Angular, or similar frameworks).
• Excellent design, coding, and debugging skills.
• OOP, OOD, Design Patterns proficient.
• Knowledge of relational databases (preferably PostgreSQL).
• Experience with Docker.
• English — at least an Upper-Intermediate level.

Nice to have skills:

• Knowledge of non-relational databases.
• Experience in developing multi-threaded applications.
• Experience with AWS services (ECS, Lambda, Aurora).

Responsibilities:

• Produce code using Java best practices.
• Write unit tests and code that adheres to coding standards.
• Provide technical support.
• Work both independently and in close collaboration with others in the team; effectively communicate with geographically distributed team members.
• Make recommendations for the improvement of the system and development process to increase productivity.
• Identify, monitor, and resolve project-related issues.

Interview stages:

• HR-interview (30 minutes).
• Technical interview (1 hour).
• Interview with the customer (1 hour).
• Job offer🎉🎉🎉

We offer:

• Competitive salary + bonuses.
• Challenging tasks and projects.
• Personal growth.
• Flexible working hours.
• New hardware.
• Free English lessons.
• Availability of generators and Starlinks in the office.
• Small gym and table tennis in the office.
• Adjustable height tables.
• Regular office fruit delivery and other benefits.

Let’s create value together!

Looking for a Junior Strong Fullstack Java Developer to join our team. We are building a platform for fast and convenient purchase of tickets for various music and sport events. Users are provided access to a wide selection of concerts where they can find performances by their favorite artists, review event dates and locations, and buy tickets in real-time.

Requirements:

• 1.5+ years of experience in Java development.
• 1.5+ years of Spring framework and building Spring web applications.
• Understanding and experience developing and deploying microservices.
• Experience developing integration layers (using REST interfaces, OpenApi, Kafka, GraphQL).
• Commercial experience with frontend development (e.g., React, Angular, or similar frameworks).
• Excellent design, coding, and debugging skills.
• OOP, OOD, Design Patterns proficient.
• Knowledge of relational databases (preferably PostgreSQL).
• Experience with Docker.
• English — at least an Upper-Intermediate level.

Nice to have skills:

• Knowledge of non-relational databases.
• Experience in developing multi-threaded applications.
• Experience with AWS services (ECS, Lambda, Aurora).

Responsibilities:

• Produce code using Java best practices.
• Write unit tests and code that adheres to coding standards.
• Provide technical support.
• Work both independently and in close collaboration with others in the team; effectively communicate with geographically distributed team members.
• Make recommendations for the improvement of the system and development process to increase productivity.
• Identify, monitor, and resolve project-related issues.

Interview stages:

• HR-interview (30 minutes).
• Technical interview (1 hour).
• Interview with the customer (1 hour).
• Job offer🎉🎉🎉

We offer:

• Competitive salary + bonuses.
• Challenging tasks and projects.
• Personal growth.
• Flexible working hours.
• New hardware.
• Free English lessons.
• Availability of generators and Starlinks in the office.
• Small gym and table tennis in the office.
• Adjustable height tables.
• Regular office fruit delivery and other benefits.

Let’s create value together!

About us

Syndicode is a value-driven software development partner with a globally distributed team of engineers, designers, architects, and IT managers. We are united by the mission to provide our clients with software products and services that perform, look, and work as designed.

We believe that our people and culture contribute to Syndicode’s ongoing success. Our team is unified by shared principles, including Accountability, Involvement, Excellence, Visibility, Integrity, Innovation, Win-Win, and Flexibility.

If it sounds like you, we’d be glad to meet you.

About the role

As a React Native Developer, you will be responsible for building and maintaining high-quality cross-platform mobile applications. You will contribute to architectural decisions, ensure performance and scalability, and collaborate closely with backend, product, and design teams to deliver reliable and user-friendly mobile solutions.

You will take ownership of complex features, improve development processes, and ensure high engineering standards across the mobile codebase.

What you’ll be doing

• Designing and developing cross-platform mobile applications using React Native
• Architecting scalable and maintainable mobile solutions
• Implementing complex UI components and ensuring pixel-perfect execution
• Integrating RESTful APIs and third-party services
• Ensuring performance optimization, memory efficiency, and responsiveness
• Managing app state using modern state management solutions
• Handling mobile-specific features (push notifications, deep linking, permissions, background tasks)
• Ensuring smooth app releases to App Store and Google Play
• Writing clean, testable, and maintainable code
• Conducting code reviews and mentoring other developers
• Collaborating with designers, backend engineers, and product stakeholders
• Participating in sprint planning, estimations, and technical discussions

What you’ll need

• 4+ years of commercial experience in mobile development
• Strong experience with React Native in production environments
• Solid knowledge of JavaScript and TypeScript
• Experience with modern React Native styling solutions (e.g., Unistyles or similar)
• Understanding of mobile application architecture patterns
• Experience integrating REST APIs and handling asynchronous flows
• Experience with server-state management libraries (e.g., TanStack Query / React Query).
• Experience with state management libraries (Redux, Zustand, or similar)
• Understanding of mobile performance optimization techniques
• Hands-on experience with React Native New Architecture (Fabric, TurboModules), Codegen, and advanced native module integration.
• Experience with push notifications using Firebase Cloud Messaging (FCM), OneSignal, or similar services (e.g., Notifee).
• Experience with mobile release processes (App Store / Google Play)
• Familiarity with Git and CI/CD workflows (Fastlane, or similar)
• Strong communication skills and ability to work in Agile environments
• Upper-Intermediate or higher English level

Nice to have

• Experience with native iOS or Android development
• Experience with automated testing (Jest, Detox, React Native Testing Library)
• Experience working with Firebase or other mobile analytics tools
• Experience with cross-platform performance debugging
• Experience mentoring developers

What you’ll get at Syndicode

• 15 days of vacation, 11 holidays, and 20 sick leave days per year
• Fully remote position
• Educational support and professional growth opportunities
• Internal tech meetups
• Continuous feedback and transparent communication
• Opportunity to influence technical decisions
• Self-management and flexible work approach
• Dynamic, fast-growing environment

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

Join Sii and support the development of PLM solutions for our client in the renewable energy sector — a global leader in wind turbine technology. In this fully remote role, you will work closely with Solution Architects and Functional Consultants to develop and optimize the Windchill environment.

Your tasks:

• Collaborate with Solution Architects and Functional Consultants to analyze and define technical requirements
• Configure the Windchill system (data models, workflows, roles, permissions) according to project needs
• Develop extensions, customizations, and integrations using Windchill APIs and custom code
• Create reports and extract data, including preparing SQL queries
• Analyze, diagnose, and resolve technical issues related to the Windchill platform

• Prepare technical documentation and perform unit, smoke, and functional testing

   

Requirements:

• Minimum 5 years of professional experience in PLM system development or maintenance
• Strong knowledge of Windchill PDMLink and the platform’s technical architecture
• Hands-on experience in developing extensions, custom functionalities, and system integrations
• Proficiency in working with Windchill APIs, scripting, and PLM customization
• Ability to create reports, analyze data, and write SQL queries
• Experience in troubleshooting, debugging, and resolving complex technical issues

About us

Syndicode is a value-driven software development partner with a globally distributed team of engineers, designers, architects, and IT managers. We are united by the mission to provide our clients with software products and services that perform, look, and work as designed. 

We believe that our people and culture sustain Syndicode’s success. Our team is unified by shared principles like: Accountability, Involvement, Excellence, Visibility, Integrity, Innovation, Win-Win, and Flexibility. Syndicoders are professionals who pursue self-improvement through continual learning, are eager to introduce improvements to work processes, and can analyze a variety of sources to make sound, timely decisions.

If it sounds like you, apply to our jobs and become a new Syndicoder!

 
About the role

We are looking for a Senior Ruby on Rails Engineer who excels in backend development and problem-solving. The ideal candidate delivers scalable, high-quality solutions that drive value for stakeholders and has a proven track record in designing, building, and maintaining production-grade Ruby on Rails applications in complex domains.
 

What you’ll be doing

• Design, develop, and maintain scalable web applications using the latest Ruby on Rails versions and PostgreSQL
• Develop and implement new features
• Maintain the code quality at the highest level
• Develop and maintain automated test suites to ensure code quality and stability
• Implement API endpoints and integrate with a React application
• Integrate various 3rd-party services
• Integrate services with ML algorithms
• Create and maintain technical documentation
• Apply existing best practices in software development
• Provide the task estimation
• Participate in requirement elicitation and clarification with the product owner
• Optimize existing solutions, improve performance, refactor suboptimal code
• Make technical decisions and be able to justify them
• Troubleshoot and resolve production issues in a timely and efficient manner

What you’ll need

• 5+ years of working experience with Ruby on Rails
• Strong understanding of object-oriented programming and design patterns
• Proficiency in English (Upper-Intermediate level and above)
• Experience with Ruby from 3.1 version and above
• Strong problem-solving skills and the ability to work in a team environment
• Excellent communication skills
• Experience in writing unit/integration tests
• Ability to write testable code
• Strong knowledge of SQL
• Experience working with PostgreSQL
• Experience working with Redis
• Experience working with Elasticsearch

Nice to have   

• Experience working with React, Docker, and Sidekiq
• Experience using AWS, Kubernetes, GitHub actions, and Python
   

What you’ll get at Syndicode

• 15 days of vacation, 11 days off for holidays, and 20 sick leave days per year
• Fully remote job
• Internal tech meetups
• Continuous feedback within teams and departments
• Top-notch team 
• Ability to participate in decision-making and bring new ideas
• Self-management: opportunity to manage your time and plan your activities
• Dynamic fast-growing environment: we react and adapt quickly to the world and market changes.

About the team:

The AI Platform team is a newly formed, high-impact group responsible for driving AI adoption across the entire organization. Reporting to a Team Lead, you will join a team of 4 engineers building cutting-edge AI solutions from the ground up. This is a unique opportunity to shape the AI strategy and tooling that will transform how the company operates.

The role:

As a Senior Software Engineer on the AI Platform team, you will design, build, and deploy production-grade AI systems that enhance productivity and decision-making across all business units. You will be a technical expert and advocate for agentic AI solutions, enabling engineering teams company-wide to leverage AI effectively.
 

Key Responsibilities:

•Design and build Retrieval-Augmented Generation (RAG) systems to provide intelligent, context-aware solutions for internal and external use cases

•Develop AI agents that automate workflows and enhance business processes across the organization

•Serve as an internal expert on agentic AI, guiding and mentoring engineering teams on best practices for building and integrating AI agents

•Evaluate, integrate, and deploy the latest AI technologies, frameworks, and models to keep the company at the forefront of innovation

•Collaborate cross-functionally with product, engineering, and business stakeholders to identify high-impact AI opportunities

•Contribute to architectural decisions and help shape the technical direction of the AI Platform
 

Required Qualification:

•5+ years of software engineering experience with strong proficiency in Python, TypeScript, or Java

•Experience with databases, both relational (e.g., PostgreSQL, MySQL) and non-relational (e.g., MongoDB, Redis, Aerospike)

•Experience building and deploying HTTP-based applications and APIs in production environments

•Hands-on experience building RAG systems and working with vector databases (e.g., Pinecone, Weaviate, Milvus, Qdrant, pgvector)

•Proven experience developing AI agents using frameworks such as LangChain, LlamaIndex, AutoGen, CrewAI, or similar

•Hands-on agentic coding experience (e.g., Claude Code, Cursor, GitHub Copilot Workspace, or similar AI-assisted development tools)

•Experience with MCP (Model Context Protocol) or similar agent communication standards

•Strong understanding of prompt engineering, context engineering, and LLM optimization techniques

•Experience with modern LLM APIs (OpenAI, Anthropic, Google, open-source models)

•Excellent communication skills with the ability to explain complex AI concepts to technical and non-technical audiences

•Demonstrated ability to work cross-functionally and drive alignment across teams

Nice to Have:

•Background in adtech or real-time bidding systems

•Familiarity with MLOps practices and model deployment pipelines

•Contributions to open-source AI projects or active participation in AI communities

Why Join Us:

• Build complex AI systems from scratch that directly impact company-wide performance

•Work with the latest AI technologies and shape how the organization adopts them

•High visibility role with direct collaboration across all business units

•Join a small, agile team where your contributions have outsized impact

•Hybrid work environment with flexibility

Benefits:

• Competitive compensation package
• International work environment
• Flexible working schedule and the possibility to work remotely
• Annual performance bonus
• Maternity/Paternity leave

About LoopMe:

Do you want to work with patented AI technology and develop high-performance solutions? If so, we have the perfect job for you at LoopMe!

We are a global team of skilled engineers who develop and maintain real-time bidding platforms for leading advertisers worldwide. Leveraging technologies such as Java, Postgres, Clickhouse, Kafka, you will be instrumental in scaling performance, optimizing cloud infrastructure, and creating innovative features across our product portfolio. 

As the market leader in AI, LoopMe uses agile methodology to deliver product features at a fast pace. Join us and be a part of our mission to push the boundaries of what is possible in the advertising industry!

Position

Senior C# Developer

Technical Requirements

• C# as primary stack
• Experience in fintech or payments (payment processing, bank integrations, transaction handling)
• Track record of fast API integrations with external systems
• Understanding of payment infrastructure and compliance requirements

Timezone

GMT+1 or later. 

Engagement Type

Staff augmentation, long-term. Client is a licensed European fintech, regulated payment institution.

Priority

High. Client reached out with specific requirements, ready to review CVs immediately.

Next Steps

Send matching profiles to us for submission to client.