Jobs Backend

About the company:
Company Overview
A full-service growth marketing agency that helps businesses accelerate growth through integrated branding, creative, digital marketing, media buying, SEO, web development, data analytics, marketing automation, and outbound sales. The company partners with SMBs and enterprise clients, delivering end-to-end strategies that combine creativity, technology, and performance marketing to drive measurable business results.

Primary responsibilities:
• Manage the web development team and workload allocation
• Define and evolve the team's technical direction
• Evaluate and improve development processes
• Plan and manage web projects end-to-end
• Assign tasks based on developers' capabilities
• Monitor deadlines, quality, and project delivery
• Prepare project status reports and presentations

Requirements:
• 2+ years of hands-on or managerial experience in web development (Front-end, Back-end, Full-stack, or WordPress)
• Strong knowledge of PHP, WordPress, HTML, CSS, and JavaScript
• Experience with Shopify and CRM systems is a plus
• Understanding of Agile, Scrum, and Kanban methodologies
• Ability to estimate project scope, effort, timelines, and costs
• Experience managing teams and multiple projects simultaneously
• Proven ability to make technical decisions and improve development processes

• English B2+

•  Higher education in IT, Computer Science, or related fields

!It is important to be available and work according to Canadian time zones.

Benefits:

• Opportunity to build processes from scratch
• Role in a new project with vertical growth opportunities as the team scales
• B2B collaboration
• Two weeks of paid vacation
   

About Flamingo

Flamingo is revolutionizing the Managed Service Provider (MSP) industry with an AI-driven, open-source platform for IT and security. Our goal is to empower MSPs with automation, optimization, and scalability tools to enhance their operations. 

Role Overview

As a Senior Back-end Engineer (Java) at Flamingo, you will design and develop scalable, high-performance back-end services and APIs using Java and Spring Boot. You will be responsible for implementing event-driven microservices, optimizing system performance, and ensuring high availability as we scale our platform. Your expertise in processing high-volume logs and integrating multiple data sources will be critical to building a robust and efficient system.

Key Responsibilities

• Design and develop scalable backend services and APIs using Java (Spring Boot).
• Architect and implement event-driven microservices with Kafka and RabbitMQ.
• Process and analyze high-volume logs efficiently to ensure scalability and real-time insights.
• Integrate and manage multiple data sources, including SQL, NoSQL, and streaming data.
• Optimize database performance using PostgreSQL, Redis, and Elasticsearch.
• Implement authentication and authorization mechanisms with OAuth, JWT, and Keycloak.
• Collaborate with front-end and DevOps teams to build a seamless and resilient system.
• Ensure code quality through automated testing, CI/CD pipelines, and best engineering practices.

Qualifications

Must-Have:

• 5+ years of experience in backend development with Java and Spring Boot.
• Experience in microservices architecture, including event-driven systems (Kafka, RabbitMQ).
• Strong knowledge of RESTful APIs, GraphQL, and WebSockets.
• Experience processing high-volume logs and working with log management tools (ELK stack, Loki, Fluentd, OpenTelemetry).
• Experience working with multiple data sources, including relational (PostgreSQL) and non-relational (Redis, Elasticsearch) databases
• Experience with containerization (Docker, Kubernetes) and cloud platforms (AWS/GCP).
• Understanding of security best practices in backend development.

Nice-to-Have:

• Experience with functional programming in Java or Scala.
• Familiarity with distributed tracing (e.g., Jaeger, Zipkin) for microservices.
• Knowledge of cloud-native architectures and serverless frameworks.
• Exposure to message queues and event sourcing.

Why Join Flamingo?

• High-impact role: As a back-end engineer, your contributions will directly shape Flamingo’s product and technology.
• Ownership & Equity: Competitive compensation, including significant equity in an early-stage, high-growth startup.
• Innovative Tech Stack: Work with cutting-edge open-source technologies in AI, automation, and security.
• Remote-first Culture: Flexibility to work from anywhere while collaborating with a top-tier team.
• Mission-Driven Company: Join a team passionate about disrupting the MSP industry and making enterprise-grade security and IT automation accessible to all.

We are looking for a Technical Lead / Lead Backend Developer (.NET) to join our growing team, working on a long-term engagement on an enterprise SaaS project specializing in Microsoft 365 governance.

DARLY SOLUTIONS is an international software development company delivering custom solutions across FinTech, MedTech, SaaS, AI, and other industries. Since 2018, we've successfully delivered 250+ projects for clients worldwide. 

Requirements:

• Strong backend engineering background in .NET / C#
• Proven leadership / team lead experience - able to guide and support a team of senior developers, not just strong individual technical skills
• Real, hands-on experience with the Microsoft ecosystem: Microsoft 365, Microsoft Graph, SharePoint, Microsoft Teams, Azure
• Experience working with GitHub-based workflows
• Experience building or maintaining complex B2B SaaS platforms
• Strong sense of responsibility and proactivity
• Comfortable working directly with engineering leadership on the project side
• Open-minded and receptive to feedback, collaborative and non-defensive in working style
• B2 English 
   

Your key accountabilities and responsibilities will include:

• Lead and mentor a team of 2 senior backend developers
• Structure and prioritize backend engineering work, review technical decisions and architecture
• Act as the main technical point of contact for the project's Head of Engineering / Engineering Manager
• Drive backend development for complex B2B SaaS features: API integrations, automation, rule-based systems, admin dashboards, analytics/reporting, access control and audit logging
• Contribute hands-on to backend development as needed
• Help the team integrate smoothly into the project's existing engineering workflow and product development process
• Communicate progress, risks, and technical decisions clearly to project stakeholders

Will be a plus:

• Experience with SharePoint or Teams customizations and compliance/governance tooling
• Experience working in outsourcing/outstaffing engagements with European clients
   

If you have what we are looking for and would love to join our Darly team, we want to hear from you!

We are looking for a Senior Backend Developer (.NET) to join our growing team, working on a long-term engagement on an enterprise SaaS project specializing in Microsoft 365 governance.

DARLY SOLUTIONS is an international software development company delivering custom solutions across FinTech, MedTech, SaaS, AI, and other industries. Since 2018, we've successfully delivered 250+ projects for clients worldwide. 

Requirements:

• 4-5+ years of commercial backend development experience
• Strong, independent backend engineering skills in .NET / C#
• Real, hands-on experience with the Microsoft ecosystem: Microsoft 365, Microsoft Graph, SharePoint, Microsoft Teams, Azure
• Experience working with GitHub-based workflows
• Experience building or maintaining complex B2B SaaS platforms
• Strong sense of responsibility and proactivity
• Able to take ownership of tasks and move them forward with minimal guidance
• Open-minded and receptive to feedback, collaborative and non-defensive in working style

• B2 English 

   

Your key accountabilities and responsibilities will include:

• Take ownership of backend tickets and move them forward independently
• Contribute to ongoing product development, not just isolated task execution
• Build and maintain backend features for a complex B2B SaaS platform: API integrations, automation, rule-based systems, admin dashboards, analytics/reporting, access control, audit logs, and compliance/governance workflows
• Work closely with the Technical Lead and the rest of the engineering team

• Integrate into the project's existing engineering workflow and contribute to long-term product evolution

   

Will be a plus:

• Experience with SharePoint or Teams customizations and compliance/governance tooling

• Experience working in outsourcing/outstaffing engagements with European clients

   

If you have what we are looking for and would love to join our Darly team, we want to hear from you!

Job Description

• Strong Python: 4+ years of professional experience in Python development
• 5 years experience in Object Oriented development 
• Proficiency with Python and common libraries (e.g., requests, asyncio, SQLAlchemy, FastAPI/Django/Flask depending on the stack)
• Passion for open source development and a community mindset
• Proficiency with Git workflows (forking, pull requests, code reviews)
• Understanding of open‑source licenses and contribution etiquette
• Understanding of Kubernetes fundamentals (pods, deployments, services, config maps, secrets) and familiarity with containerization (Docker)
• Strong SQL querying and optimization skills and familiarity with MariaDB‑specific features (e.g., storage engines, replication options)
• Background in performance optimization or distributed systems
• Knowledge of industry standard source control systems
• Proficiency in Team Foundation Server and Visual Studio is preferred
• Experience with industry standard communication protocols; REST. JSON, XML, and SOAP
• Experience with Agile software development methodologies
• Azure experience is preferred
• Good understanding of SDLC process, version control, code review, continuous integration and automated deployment tools.
• Experience working on large-scale, production-grade projects.
• Strong background with CI/CD methodology.
• B.Sc in Computer Science is an advantage.
• Advanced level of English

Job Responsibilities

• You will be part of a team responsible for building the Royalty management solution 
• Participate in all phases of managing the Application Lifecycle Management: requirements analysis, development, testing, and implementation. Participate in technical logic and design discussions
• Investigate and resolve bugs, performance issues, and security concerns
• Create, maintain, and present technical documentation to different audiences and levels
• Perform resource, technical and risk assessments
• Work with other development, architecture, and product development teams to ensure delivery of product
• Support release processes, versioning, and dependency management
• Engage constructively with contributors for clarification and/or improvements
• Assist in the timely completion of assigned development projects
• Prepare required documentation, including project plans, software program, and user documentation
• Assist in the estimation of time for development projects
• Being the main contact point for the US based client team
• Provide technical guideline to the local team
• Interview new candidates to join the team
  
   

Department/Project Description

        Our client is a performance rights organization in the United States. It collects blanket license fees from businesses that use music, entitling those businesses to play or sync any songs from the client's repertoire of over 22.4 million musical works. On a regular basis, the client distributes the money to songwriters, composers, and music publishers as royalties to those members whose works have been performed

ProfiSea Labs is building an AI-powered multi-cloud management platform that helps CloudOps engineers and IT leaders optimize cloud usage, cut costs, and automate complex workflows through next-generation intelligence.

What you'll do:

Design and implement features in Python-based backend services powering the Uniskai platform
Develop and maintain a Kubernetes agent written in Golang
Integrate cloud infrastructure data with the Uniskai FinOps platform
Work with Kubernetes APIs, CRDs, controllers, and cluster-level components
Build reliable, observable, production-ready services
Collaborate with product and infrastructure engineers to ship real features, not demos


What we're looking for:

1+ year of professional software development experience
Strong proficiency in Python — this is your primary language on the job
Familiarity with Golang — at least basic knowledge is preferred; if you're not there yet, a genuine willingness to learn is a must
Basic understanding of Kubernetes concepts — hands-on experience is a plus, but what matters most is a genuine curiosity and readiness to learn
Ability to read, understand, and improve existing codebases
Pragmatic mindset: you care about things working in production, not just passing in CI


Nice to have (not required):

Experience building Kubernetes operators or agents
Familiarity with cloud platforms (AWS, GCP, Azure)
Exposure to FinOps, cost optimization, or observability tools


What we offer:

Work on real infrastructure software used in production
A team that values engineering clarity over buzzwords
Opportunity to deepen expertise in Kubernetes and cloud internals
Clear career growth path
Medical insurance
Sport compensation
Competitive compensation based on experience


If you want to understand how Kubernetes actually works under the hood — and not just deploy YAML — this role is for you.

We’re looking for a Full Stack Developer with a strong backend focus – Node.js and TypeScript at the core, with React and AWS in the stack. You’ll help own features end-to-end, communicate directly with the US-based client, and work in a structured Agile team building an AI-powered platform for functional medicine — covering the full patient journey from lab ordering (500+ biomarkers) and AI-driven analysis to personalized treatment protocols. The platform is live in production and actively evolving.

Stack: Node.js, TypeScript, AdonisJS, PostgreSQL, Redis, React, AWS

Location: Europe or Latin America

Working hours:
Europe-based: 14:00 – 23:00 Kyiv time (7:00 AM — 4:00 PM US ET)
Latin America-based: 9:00 AM – 6:00 PM US ET

Requirements:
3+ years of commercial experience with Node.js and TypeScript
Experience building RESTful APIs and backend services (AdonisJS, NestJS, Express, or similar)
PostgreSQL — schema design, query optimization, migrations, transactions
Redis — caching, queues, pub/sub
React + TypeScript — hands-on experience
AWS — Lambda, S3, RDS, SQS (or similar services)
Docker and CI/CD pipelines (GitLab CI or GitHub Actions)
Solid understanding of software architecture, design patterns, and clean code principles
Strong Git experience and collaborative development workflows
Experience participating in code reviews
Familiarity with Agile/Scrum methodologies
English B2+ — regular communication with the US-based client

Nice to Have:
Experience with third-party integrations in regulated domains (Healthcare, FinTech)
Serverless architecture experience
AI/LLM integrations
Real-time video/audio APIs (Daily.co, Twilio, or similar)

Responsibilities:
Build and maintain backend services and APIs (Node.js, TypeScript)
Develop and enhance React-based user interfaces
Participate in architecture discussions and technical decision-making
Troubleshoot production issues and contribute to CI/CD improvements

What do we offer:
Salary discussed individually based on interview results
Performance reviews are conducted annually
Professional development in a team of highly qualified specialists
Dynamic and interesting work
Opportunities for career and professional development
Strong mentorship offers valuable guidance and support to help individuals grow into skilled specialists
Direct communication with English-speaking clients
Recognition gifts and awards
Employee referral program
Benefit program with the opportunity for compensation to cover the following expenses of their choice:
▪ Sports activities (these can be one-time sessions or monthly or annual subscriptions)
▪ Payment of medical expenses (treatment and preventive procedures at the dentist, services, and consultations with doctors, medical examinations, and tests)
▪ Psychologist consultations
▪ Medical insurance
▪ Training for the development of professional skills (hard and soft skills), including the purchase of necessary educational literature
▪ Courses in traditional arts and creativity (such as drawing, music, photography).
▪ Individual English language improvement classes
21 working days — paid vacations
10 paid sick leaves
 

We are looking for a Python /C++ Software Engineer to join our autonomous systems control team.

This role is a strong fit for an engineer who is comfortable with mathematics, and is interested in growing into control engineering for autonomous systems.

We consider engineers at Middle+ level.

Responsibilities:

• Develop and maintain control and decision-making algorithms for autonomous guidance
• Perform testing in simulation environment and in real life
• Analyze system behavior and logs
• Navigate through research papers and algorithm descriptions in field of autonomous systems and apply them in practice

Required qualifications:

• 3+ years of software development experience in ML, robotics, simulation, gamedev or other algorithmically intensive domains
• Strong programming skills in Python and C++
• Hands on experience with concurrent and parallel programming
• Mathematical background, including: linear algebra (vectors and matrices, coordinat systems and transformations) calculus (derivatives and integrals)

Would be an advantage:

• Control theory fundamentals
• Olympiad programming
• Signal processing
• Machine Learning
• Mavlink
• Simulation tools (Gazebo, AirSim)
• ITL, HITL testing
• X4, Betaflight, ArduPilot

What We Offer:

• Opportunity to work on cutting-edge embedded products
• Competitive salary and benefits
• Flexible working model (remote / hybrid / onsite)
• Professional growth and learning opportunities
• Collaborative and engineering-focused culture

Наш клієнт, Growe, провідна консалтингова компанія та група сервісів у сфері iGaming і розваг. Вони створюють стратегії, що працюють, та рішення, які масштабуються. Поєднуючи стратегічне бачення з практичним досвідом, Growe допомагає бізнесам орієнтуватися в динамічній індустрії, відкривати нові можливості, виходити на нові ринки та досягати сталого зростання.

Ідеально для тих, хто прагне:

• Писати чистий, читабельний код;
• Виконувати як прості, так і складні ініціативи;
• Брати відповідальність за отримані завдання;
• Координувати взаємодію між командами в межах робочих задач.

Досвід, який стане твоєю перевагою:

• 4+ роки досвіду з .NET (C#) у продакшн-системах;
• Сильний досвід роботи з ASP.NET Core Web API та проєктування RESTful API;
• Глибоке розуміння HTTP (таймаути, повторні спроби, ідемпотентність, статус-коди);
• Досвід інтеграції із зовнішніми API;
• Вміння проєктувати інтеграційні шари та модульні системи (clean architecture / onion / прагматичне шарування);
• Глибоке розуміння мікросервісів та архітектури розподілених систем;
• Досвід асинхронної взаємодії та event-driven архітектури;
• Ґрунтовні знання реляційних баз даних (SQL, транзакції, індекси, оптимізація продуктивності);
• Досвід написання unit- та integration-тестів;
• Розуміння автентифікації та авторизації (OAuth 2.0, OpenID Connect).

Ми цінуємо:

• Відповідальність за результат;
• Сильні навички міжкомандної взаємодії;
• Проактивний та відповідальний підхід до роботи;
• Мислення та комунікація на рівні senior-спеціаліста.

Наші клієнти пропонують конкурентні переваги для підтримки вашого професійного та особистого зростання, зокрема:

• Орієнтація на здоров’я та добробут;
• Глобальне медичне страхування;
• Можливості для зростання;
• Програми бенефітів (компенсація спорту / стоматології / психолога тощо);
• Бонуси за досягнення результатів;
• Динамічне робоче середовище.

Долучайся — і нехай твоя історія зростання розпочнеться.

English version

Our client, Growe, is a leading business advisory and services group in iGaming and Entertainment. Сreators of strategies that work and solutions that scale. Combining strategic vision with hands-on expertise, Growe helps businesses navigate the fast-evolving industry, seize new opportunities, enter new markets, and achieve sustainable growth.

Perfect for those who aim to:

• Write clean, readable code;
• Execute both trivial and non-trivial initiatives;
• Take ownership of the received initiative;
• Coordinate cross-team interactions within the framework of task work.

Experience you’ll need to bring:

• 4+ years with .NET (C#) in production systems;
• Strong experience with ASP.NET Core Web API and RESTful API design;
• Strong understanding of HTTP semantics (timeouts, retries, idempotency, status codes);
• Experience with external API integration;
• Ability to design integration layers & modular systems (clean architecture / onion / pragmatic layering);
• Deep understanding of microservices and distributed systems architecture;
• Experience with asynchronous communication and event-driven architecture;
• In-depth knowledge of relational databases (SQL, transactions, indexing, performance tuning);
• Experience writing unit and integration tests;
• Understanding of authentication and authorization (OAuth 2.0, OpenID Connect).

It’s a perfect match if you have those personal features:

• Ownership and accountability;
• Strong cross-team collaboration skills;
• Proactive and responsible approach to work;
• Senior-level mindset in decision-making and communication.

Our clients offer competitive benefits to support your professional and personal growth, including:

• Health & Wellness Focus;
• Global Medical Coverage;
• Growth Opportunities;
• Benefits Programs (compensation for the gym/stomatology/psychological service & etc.);
• Performance-Driven Rewards;
• Dynamic Work Environment.

Apply, and let your growth journey begin.

Client

Our client is an international SaaS company developing tools that empower businesses to create highly engaging digital experiences. Their solutions are trusted by thousands of organizations worldwide to collect, analyze, and act on user data effectively.

Project overview

The project is an interactive form builder designed for marketers, researchers, HR, sales, and customer experience teams to create engaging, conversational online forms, surveys, and quizzes.

Key features:
Visually appealing conversational design optimized for high completion rates
AI-powered data interpretation
Workflow and logic builders for personalized experiences
Brand customization options
Seamless integrations with various tools to automate data collection and streamline workflows

Position overview

We are seeking a Full Stack Engineer who builds with AI in the loop — both as a daily development practice and as a product capability. You are fluent with coding agents (Claude Code, Cursor, Copilot) and ship faster because of them, not despite them. You understand how to design, prompt, evaluate, and operate LLM-backed features in production — including model selection, context engineering, evals, guardrails, and cost and latency tradeoffs.

Beyond AI, you have deep Golang and React/TypeScript expertise and own features end-to-end: from understanding business requirements, through writing and testing code, to deployment and production monitoring. This role requires strong autonomy, proactive communication, and the ability to deliver reliable, scalable solutions in a modern cloud environment.

This position operates according to the CET time zone.

Responsibilities

• Design and ship LLM-powered product features: prompt design, retrieval, tool and function calling, structured outputs, streaming, evaluation harnesses, and guardrails.
• Operate AI features in production: monitor quality, latency, cost, and failure modes; iterate on prompts, models, and architectures based on real usage.
• Use AI coding tools (Claude Code, Cursor, Copilot) as a core part of your workflow to accelerate delivery without compromising code quality.
• Design, develop, and maintain backend services using Golang and frontend applications using React/TypeScript.
• Collaborate with product managers, designers, and other engineers to translate business requirements into technical solutions.
• Implement event-driven architectures leveraging Kafka for real-time data processing.
• Manage and optimize AWS environments, ensuring scalability and reliability.
• Define and maintain infrastructure using Terraform and deploy services in Kubernetes clusters.
• Build and maintain CI/CD pipelines in Jenkins for automated deployments.
• Ensure high-quality code through comprehensive testing and code reviews.
• Monitor application performance and troubleshoot issues in production environments.
• Contribute to UI/UX improvements and ensure seamless integration between frontend and backend.

Requirements

• Demonstrable production experience shipping LLM-powered features. Be ready to walk through a feature you built: prompts, evaluation approach, failure modes you fixed, and how you measured success.
• Hands-on with at least one major LLM provider's API (Anthropic, OpenAI, AWS Bedrock, or equivalent), including streaming, tool use, and structured outputs.
• Daily use of AI coding assistants in your workflow; able to articulate where they help, where they hurt, and how you maintain code quality.
• Strong, in-depth knowledge of Golang.
• Experience delivering complex backend systems from design to production.
• Solid background with Kafka and event-driven architectures.
• Hands-on experience managing AWS environments.
• Proficiency with Terraform for infrastructure-as-code.
• Experience deploying and operating services in Kubernetes.
• Building CI/CD pipelines in Jenkins.
• Proven ability to ensure quality through comprehensive testing.
• Strong proficiency in React and TypeScript.
• Experience contributing to front-end features, UI components, and client-side logic.
• Ability to seamlessly integrate frontend with backend services.
• Excellent English communication skills, written and spoken.
• Self-driven and able to work independently while managing workload effectively.

Nice to have

• Experience with agent frameworks, multi-step tool-use loops, or RAG systems at scale.
• Built or maintained an evaluation pipeline (offline evals, LLM-as-judge, human review loops).
• Open-source contributions, published writing, or talks on applied AI engineering.

ThingsBoard, Inc. is a US corporation founded in 2016, with an R&D center in Kyiv, Ukraine. We are the main contributors and maintainers of the ThingsBoard open-source IoT Platform. We deliver and continuously improve a scalable, robust, and affordable IoT Platform that significantly reduces time-to-market for life-changing IoT solutions. We also help companies build outstanding IoT products based on ThingsBoard.

We are currently looking for a Junior Python Developer who will maintain, update, and advance the company's Python-based products, including the Gateway, Python SDK, REST Client, and Micro/CircuitPython SDK. In this role, you will have the opportunity to work closely with both software and embedded concepts, driving the evolution of our IoT solutions.

What we are looking for:

• Good knowledge of Python 3.10+
• Experience with asyncio
• Experience with threading
• Solid understanding of networking (TCP, UDP, OSI, TLS/SSL)
• Experience with SQLite
• Experience with Docker
• Proficient Linux user
• Knowledge of Git + GitHub
• Knowledge and experience with HTTP + REST protocols

• Intermediate English level + readiness to join client calls if needed

   

Responsibilities:

• Participate in the development, updates, and maintenance of the company's Python-based solutions (Gateway, Python SDK, REST Client, as well as Micro/CircuitPython SDK for embedded devices).
• Analyze, handle, and resolve technical issues from users. Gradually progressing from simple tasks to independently solving complex technical problems.
• Design, propose, and independently implement new features for the IoT Gateway.
• Configure connectivity and integrate various IoT devices into the platform, working with industrial and network protocols.
• Monitor, analyze network traffic, and debug protocols using testing tools.
• Collaborate with the team to solve architectural tasks and communicate directly with English-speaking clients (written in issues and via calls when necessary).

• Actively learn the platform's internal architecture (ThingsBoard, Gateway), new IoT protocols, and embedded concepts; analyze documentation and technical sources to tackle daily challenges.

   

Nice to have:

• Experience with MicroPython / CircuitPython
• Experience with MQTT
• Experience with or knowledge of Modbus, OPC-UA protocols

• Experience with Wireshark

   

What we offer:

• Opportunity to work on an open-source IoT platform with 21k+ stars on GitHub
• Modern, cutting-edge tech stack
• A professional team with 20+ years of experience, free of bureaucracy and micoromanagement
• Career growth opportunities and regular salary reviews
• Full-time on-site position with a flexible schedule
• Medical insurance
• 17 days of paid vacation and 10 days of paid sick leave
• Free English classes
• Comfortable office with a fully stocked fridge (free drinks)
• Work format: Office in Kyiv (Podil)
   

By submitting your CV, you consent to ThingsBoard Inc collecting and processing your personal data for recruitment purposes in accordance with our Privacy Policy and ISO 27001 requirements. Your data will be retained for 12 months from the date of submission and securely deleted thereafter unless you are hired. You may withdraw consent at any time by contacting us.

Are you ready to take your Java expertise to the next level? Join our team to work with a highly scalable, highly available, real-time advertising platform that serves millions of users worldwide and handles massive real-time data at scale. We are hiring a Software Engineer to be a vital part of this mission. If you bring extensive experience building complex systems, love great technology at scale, jumping in, and figuring things out in any system, this role is for you! Working in a modern, cloud-native environment, you’ll collaborate with a team of top engineers to develop low-latency, distributed systems capable of handling millions of QPS. This is an opportunity to combine innovation, performance engineering, and large-scale impact - while shaping the future of digital entertainment technology.
 

About the project

Our client is a leading streaming service based in the United States. With millions of users worldwide, its devices provide easy access to free TV, live news, sports, movies, etc. The client has an advertising business and also licenses its hardware and software to other companies.
 

Who are we looking for?

Skills & Experience

• 4+ years of experience building large scale and low latency distributed systems
• 5+ years of Java backend development experience;
• Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
• Experience with distributed caching, SQL/NO SQL, and other databases is a plus 
• Experience with Big Data and cloud services such as AWS/GCP is a plus
• Experience in advertising domain a big plus 
• Self-motivated individual with a high level of accountability and ownership
• Critical thinking and practical decision making
• Can do, results-oriented mindset
• Software development best practices: test-driven development, automated testing;
• Knowledge of distributed systems architecture and service oriented systems;
• English: B2+

Nice to have

• Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch) and working with large language models (LLMs)

Responsibilities

• Develop and maintain complex backend services
• Collaborate with cross-functional teams (Product, Design, QA) to deliver high-quality features;
• Write unit, integration, and end-to-end tests;
• Maintain and extend existing services to meet new requirements;
• Participate in code reviews and contribute to technical discussions;
• Help maintain technical documentation;
• Assist in improving CI/CD pipelines;
• Contribute to best practices within the development team.

We are building a talent pool of Web3 Backend Developers with EVM expertise for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for developers who work with Solidity and Node.js / NestJS, understand DeFi protocol logic, and can build reliable on-chain and off-chain infrastructure for EVM-based products.

 

🛠️ Key Responsibilities

🔹 Write, test, and deploy Solidity smart contracts (ERC-20, ERC-721, custom protocols)

🔹 Integrate and build on top of DeFi protocols: Uniswap, Aave, Lido, Chainlink

🔹 Use OpenZeppelin standards and secure contract patterns

🔹 Build off-chain backend services using Node.js / NestJS

🔹 Interact with contracts via ethers.js or viem

🔹 Use Hardhat or Foundry for development, testing, and deployment

🔹 Write unit and integration tests for smart contracts

🔹 Communicate directly with international clients in English

📋 Requirements

🔹 2+ years of commercial experience in Web3/EVM development

🔹 Solid hands-on experience with Solidity

🔹 Proficiency in Node.js / NestJS

🔹 Experience with ethers.js or viem

🔹 Familiarity with Hardhat or Foundry

🔹 Knowledge of DeFi protocols: Uniswap, Aave, Lido, Chainlink

🔹 Understanding of OpenZeppelin contract standards

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Familiarity with Layer 2 networks (Arbitrum, Optimism, Base)

🔹 Mainnet deployment experience with high-value contracts

🔹 Multi-sig setup (Gnosis Safe)

🌱 Why Join Our Talent Pool?

🔹 Real Web3 Projects — production-grade smart contracts and backend systems

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

We are building a talent pool of Solana Developers for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for developers with hands-on Rust and Anchor experience who understand Solana's execution model and can build reliable on-chain programs and off-chain infrastructure for production systems.

 

🛠️ Key Responsibilities

🔹 Design, develop, and maintain Solana programs using Rust and Anchor

🔹 Work with PDAs, CPI, authority and signer patterns

🔹 Implement proper account validation, ownership checks, and custom errors

🔹 Write TypeScript / Node.js off-chain integration scripts

🔹 Integrate with Solana DeFi protocols: Jupiter, Jito, and others

🔹 Write unit tests on localnet and integration scripts on devnet

🔹 Build off-chain services: WebSocket subscriptions, bots, background workers

🔹 Communicate directly with international clients in English

📋 Requirements

🔹 2+ years of commercial experience with Rust and Solana on-chain development

🔹 Confident use of the Anchor framework

🔹 Solid understanding of the SVM (Solana Virtual Machine) execution model

🔹 Experience with PDAs, CPI patterns, and account validation

🔹 Proficiency in TypeScript / JavaScript for off-chain tooling

🔹 Hands-on experience with solana-web3.js and SPL Token

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Experience with Token-2022 (fees, metadata pointer, freeze authority)

🔹 Familiarity with Raydium AMM / CLMM or Meteora

🔹 Hands-on experience with Jupiter or Jito integrations

🔹 Security-aware development mindset

🔹 Prior experience deploying to Solana mainnet

🌱 Why Join Our Talent Pool?

🔹 Real Solana Engineering — production-grade on-chain programs, not demos

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

We invite a Senior Software Engineer I to join our team and help develop new components within a large-scale fintech data platform in the private markets domain. In this role, you'll contribute to the development of blockchain-integrated platform components while working across a complex, distributed system alongside experienced engineers.

🟩 What's in it for you:

• Work on a new component within an established fintech platform with 20+ internal services and 15+ external integrations
• Build production software integrating modern AI technologies and blockchain systems
• Own end-to-end development of complex backend features while collaborating with senior engineers and architects

• Gain exposure to large-scale distributed systems, event-driven architectures, and cutting-edge AI tooling

   

✅ Is that you?

• 5+ years of backend software development experience, with Python as the primary language
• Strong software engineering background in Node.js with TypeScript, with the ability and motivation to work deeply in Python services
• Experience building production AI/LLM applications, including agent-based workflows and orchestration patterns
• Good understanding of AI frameworks and practical trade-offs (experience with LangGraph is a plus)
• Experience developing and maintaining microservices with multiple internal and external integrations
• Strong experience with Kubernetes, Docker, and containerized deployments
• Experience with Infrastructure as Code (Terraform or equivalent)
• Experience with event-driven architectures
• Strong experience with PostgreSQL and practical knowledge of Redis, MongoDB, and Weaviate
• Solid understanding of software architecture and distributed systems
• Strong commitment to clean, maintainable code, automated testing, and engineering best practices
• Experience producing technical documentation (C4, UML, or similar)
• Experience owning features from design through production, collaborating with cross-functional teams
• Hands-on experience with AI-assisted development tools (such as Cursor and Claude Code)
• Strong communication, collaboration, analytical thinking, and problem-solving skills

• Comfortable working in fast-paced environments with evolving requirements

   

⭐ Nice to have:

• Experience with LangChain, MCP tooling, and agent-based integration architectures
• Familiarity with Retrieval-Augmented Generation (RAG) and vector databases
• Experience building AI agents for automation, validation, or data enrichment
• Experience with AWS and/or Azure
• Exposure to cloud-agnostic or private cloud architectures
• Background in fintech, data platforms, or private markets
• Basic understanding of blockchain concepts (L1/L2) and integration through APIs or abstraction layers