Jobs Backend

986
  • Β· 48 views Β· 6 applications Β· 5d

    MS Power BI Developer / .NET

    Full Remote Β· Poland, Ukraine Β· 4 years of experience Β· English - B2
    Sprinterra is a friendly and collaborative technology consulting company delivering software solutions for clients across finance, real estate, retail, and other industries. We work on diverse projects – from business process automation to complex...

    Sprinterra is a friendly and collaborative technology consulting company delivering software solutions for clients across finance, real estate, retail, and other industries. We work on diverse projects – from business process automation to complex enterprise platforms – giving our teams the opportunity to solve different challenges, learn new domains, and grow professionally. Our environment is open, supportive, and flexible: we value clear communication, personal ownership, and teamwork, and we encourage everyone to contribute ideas and help shape how we deliver projects.

    About the project

    Our customer is a privately held financial services consulting firm, which provides its services in following sectors:

    • Direct lending
    • Commercial real estate
    • Residential mortgages
    • Structured & speciality finance

    Its clients include the world’s leading asset managers, insurance companies, institutional investors, service providers, law firms and banks.

    Our client currently has multiple .NET applications that utilize outsourced application development: in the residential mortgage origination and serving domain, and in the fund of fund management domain.

    • They are built on Microsoft .NET Web technology stack with MS SQL server database
    • The applications are deployed in Microsoft Azure IAAS / PAAS services
    • Full development lifecycle is supported with Development / Test, QA, UAT and Production nodes
    • Agile development methodology is utilised. JIRA is used for requirement and project management
    • All applications are in production, with on-going functional enhancements and features being added

    Position Overview

    You will be working closely with our clients’ team in a team extension format. The client’s office is located in the EST time zone and you are expected to join the daily stand up meetings, planning meetings, etc. (usually in the morning EST time)

    The software ingests data from various sources and creates positions, cash flows, net present values, expenses, interest, principal repayments and various analytics based on formulas. This information resides in a database. The users can produce reports in Excel and PDF formats or publish to a Business Intelligence tool that allows to create custom reports and views. Currently Power BI is used, though it is possible that another solution will be used in the future.

    Our client needs help with 2 projects:

    • Managing the receipt and upload of files, implementation of new and changes to the existing models, data repositories that populate BI tools, BI reports and templates
    • Optimisation and customisation of large scale reports for some of the clients (may have 100’s of 1,000’s records). In order to generate a report, you will have to consume data from an API and / or flat files and apply custom logic that may be customized for each client

    This role requires experience in the following technologies:

    • Microsoft .NET Framework 4.8
    • Microsoft ASP.NET MVC
    • Microsoft SQL Server 2022
    • Microsoft SQL Reporting services (SSRS)
    • Microsoft Power BI

    It is nice to Have:

    • Experience in high availability Web farm deployment architecture
    • Deployment of applications in a virtual/cloud environment preferably Microsoft Azure / HPC experience
    • Microsoft SQL Server Integration Services (SSIS)

    Our perfect candidate should have:

    • 3-5 years programming experience
    • At least 3 years experience in .NET technologies
    • Experience in both front end and server side (web services) development, using .NET
    • Experience working with Power BI
    • Participation in several different application developments in their chosen technology stack, assuming roles that show a progressing and maturing skill set over time
    • Experience with agile development methodologies and understanding of roles within an agile methodology
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  • Β· 159 views Β· 42 applications Β· 5d

    Senior Java Engineer

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - B2
    Senior Java Engineer (high-load product) Are you a Java Developer looking for new challenges? What about working with a high-profile client with millions of QPS? If you have experience developing high-performance distributed systems, this is the...

    Senior Java Engineer (high-load product) 

    Are you a Java Developer looking for new challenges? 
    What about working with a high-profile client with millions of QPS? 
    If you have experience developing high-performance distributed systems, this is the perfect opportunity to work on a new digital marketing management platform with a world-renowned client.
     
    Project tech stack: 
    Concurrency -  a high-load, low-latency system.
    Cache: Aerospike, Memcached
    Cloud: AWS, GCP
    DB: PostgreSQL, Superset
    Streams: Kafka, Kinesis
    Data formats: Avro, Protobuf
    Languages: Java, Scala, Python
     
    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.
     
    Location:
    Ukraine remote
     
    Skills & Experience:
    - 4 - 8 years of experience building large-scale and low-latency distributed systems
    - B.S. or M.S. degree in Computer Science, Engineering, or equivalent 
    - Command of Java or C++
    - Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
    -Self-motivated individual with a high level of accountability and ownership
    - Critical thinking and practical decision making
    - Can do, results-oriented mindset
     
    Will be a plus: 
    - Experience with distributed caching, SQL/NoSQL, and other databases is a plus 
    - Experience with Big Data and cloud services such as AWS/GCP is a plus
    Experience in the advertising domain is a big plus 

     Responsibilities
    - Work alongside a highly skilled engineering team to design, develop, and maintain large-scale, highly performing, real-time applications
    - Own building features, driving directly with product and other engineering teams 
    - Demonstrate excellent communication skills in working with technical and non-technical audiences 
    - Be an evangelist for best practices across all functions – developers, QA, and infrastructure/ops 
    - Be an evangelist for platform innovation and reuse 
    - Deliver top-quality software in a timely fashion 

     

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  • Β· 260 views Β· 88 applications Β· 5d

    Python Developer

    Full Remote Β· Worldwide Β· Product Β· 5 years of experience Β· English - B2
    About the project: A digital health company focused on revolutionizing the pharmacy regulatory market through data-driven innovation and technology. They aim to accelerate the approval process of therapeutic products. Role Overview: We are seeking a...

    About the project: A digital health company focused on revolutionizing the pharmacy regulatory market through data-driven innovation and technology. They aim to accelerate the approval process of therapeutic products.

    Role Overview: We are seeking a highly skilled and experienced Python Engineer to join our dynamic team. In this role, you will support the development of our backend systems, working closely with cross-functional teams to build and maintain scalable, robust, and secure applications. As a key member of our engineering team, you will be instrumental in shaping the future of our platform, driving innovation, and ensuring the highest standards of software quality.

    Key Responsibilities:

    • Architectural Design: Support the implementation of a scalable and efficient backend architectures that support the rapid growth and evolution of our platform.
    • Development: Write clean, maintainable, and efficient code in Python, ensuring that it meets the needs of our users and aligns with our technical vision.
    • Collaboration: Work closely with product managers, front-end developers, and other stakeholders to translate business requirements into technical solutions.
    • Performance Optimization: Identify and address performance bottlenecks, optimizing the platform for speed and scalability.
    • Security: Implement robust security measures to protect user data and ensure the platform meets the highest security standards.
    • Continuous Improvement: Stay up-to-date with the latest industry trends and technologies, continuously improving the development process and tools.

    Qualifications:

    • Experience: Minimum of 5+ years of professional experience in Python development, with at least 3 years in a senior engineering role.
    • Modern AI tools: Excel at usage of the modern tools akin to Cursor, CC, and others. Proven experience in writing agents for tasks.
    • Technical Expertise: Strong knowledge of Python and related frameworks (e.g., Django, Flask) with a deep understanding of web development principles.
    • Architecture: Proven experience in designing and implementing scalable and distributed systems.
    • Database Proficiency: Expertise in working with databases such as PostgreSQL, MySQL, or MongoDB, including experience with ORM frameworks.
    • DevOps & CI/CD: Familiarity with DevOps practices, including CI/CD pipelines, containerization (Docker), and cloud platforms (AWS, Azure, GCP).
    • Testing: Strong emphasis on testing (unit, integration, and end-to-end) and experience with testing frameworks (e.g., PyTest).
    • Communication: Excellent communication skills, with the ability to articulate technical concepts to both technical and non-technical stakeholders.

    Nice to Have:

    • Knowledge of front-end technologies such as JavaScript, React, or Angular.
    • Experience with microservices architecture and RESTful API development.

     

     

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  • Β· 115 views Β· 32 applications Β· 5d

    Backend Engineer PHP / NodeJS

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 4 years of experience Β· English - B1
    About EdSpan is an innovative EdTech company dedicated to creating cutting-edge learning experiences that empower the next generation of students. Our collaboration with a US-based private school network helps us better understand user needs while...

    About

     

    EdSpan is an innovative EdTech company dedicated to creating cutting-edge learning experiences that empower the next generation of students. Our collaboration with a US-based private school network helps us better understand user needs while expanding our B2C and B2B products to a broader audience. Our current focus includes an AI-guided tutoring experiences, a peer-to-peer tutoring platform, and a custom learning management system.

    We operate within a framework of clearly defined processes supported by automation for routine tasks, and open, productive collaboration across the team. Our workflows are based on Agile principles, with daily stand-ups, bi-weekly sprints, and other key Scrum practices. At the same time, we keep meetings to a minimum to ensure everyone can stay focused on delivering high-quality results and continuing to grow professionally.

     

    Requirements

     

    • 4 or more years of experience in backend development
    • Experience with PHP: version 8.0 and above, Laravel or Symphony frameworks
    • Experience with NodeJS: any of TypeScript-based frameworks
    • Good understanding of OOP principles and best practices (DRY, KISS, SOLID)
    • Familiarity with Domain-Driven Design (DDD)
    • Strong knowledge of relational databases (MySQL, PostgreSQL, etc.) and good understanding of non-relational databases (Redis, OpenSearch, or other)
    • Practical experience with Docker, docker-compose, and CI/CD pipelines
    • Experience writing unit and integration tests
    • Intermediate level of English (B1) or above

       

    Would be a plus

     

    • Hands-on experience working with Large Language Models (LLMs) - third-party integrations or hosted models, Retrieval-Augmented Generation (RAG) pipelines, LLM Engineering Platforms
    • Practical knowledge of cloud infrastructure (AWS or other providers) beyond basic object storage and compute instances
    • Familiarity with real-time communication technologies such as WebSockets or WebRTC

       

    Responsibilities

     

    • Implement new features following architecture guidelines, review the code of your peers
    • Write code following best practices, common design patterns, and Domain-Driven Design ideas
    • Integration with 3rd party services (including LLMs, Payment Service Providers, Text-to-Speech, realtime communication and more)
    • Debug and fix issues on staging and production environments
    • Preparing Swagger schema definitions and implementing automated tests
    • Scope decomposition and task estimation
    • Participate in daily meetings and other scrum rituals
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  • Β· 147 views Β· 22 applications Β· 5d

    Senior Java Engineer (Poland)

    Full Remote Β· Poland Β· 7 years of experience Β· English - B2
    Description You value simplicity and effectiveness, and you’re excited by the opportunity to make a meaningful impact. You can reason through trade-offs, build for scale,and adapt quickly to evolving priorities. Requirements: 5+ years of backend...

    Description

    You value simplicity and effectiveness, and you’re excited by the opportunity to make a meaningful impact. You can reason through trade-offs, build for scale,and adapt quickly to evolving priorities.

     

    Requirements:

    • 5+ years of backend development experience with a strong command of Java and the Spring ecosystem.
    • Proven track record of shipping production-grade systems in cloud environments.
    • Experience with distributed systems and messaging frameworks such as Apache Kafka (via AWS MSK).
    • Strong understanding of containerization, orchestration (Kubernetes), and deployment workflows.
    • Familiarity with observability tools and incident response best practices.
    • Excellent communication skills and a collaborative mindset.
       

    Duties:

    • Design, implement, and maintain backend services that are secure, scalable, and mission-critical.
    • Collaborate with cross-functional teams to deliver end-to-end solutions from concept to deployment.
    • Work across the stack from backend systems to infrastructure components such as ALB/NLB, and Kubernetes.
    • Take ownership of projects, driving architecture, design, and implementation decisions.
    • Write clean, maintainable, and well-tested code in Java, and contribute to automation and tooling in Python when necessary.
    • Monitor production systems, respond to incidents, and continuously improve system reliability and performance.
    • Participate in On-Call rotation to ensure high availability and rapid response to production issues.
    • Participate in code reviews, knowledge sharing, and mentoring of junior engineers.

     

    Benefits:

    • A competitive salary and flexible compensation package
    • Professional development tools (mentorship program, tech talks and trainings)
    • Medical insurance
    • Free corporate English classes and speaking clubs with a native speaker
    • Various corporate events
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  • Β· 360 views Β· 108 applications Β· 5d

    Senior Node.js+React.js Engineer (Web)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B2 Ukrainian Product πŸ‡ΊπŸ‡¦
    About us: BetterMe β€” a global wellness ecosystem empowering millions to become better β€” physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others. Your impact: Take part in the full...

    About us:

    BetterMe β€” a global wellness ecosystem empowering millions to become better β€” physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.
     

    Your impact:

    • Take part in the full development cycle β€” from technical research and solution design to release and production support;
    • Design and build backend solutions using NestJS / Node.js / PostgreSQL for our products;
    • Work on the frontend with React, Redux Toolkit, and Next.js to keep a strong end-to-end view of the product;
    • Reduce technical debt and improve the stability, scalability, and overall code quality of the platform;
    • Partner closely with Product and Growth teams to turn ideas and hypotheses into real features for users;
    • Join architecture discussions, code reviews, and help shape our engineering standards;
    • Collaborate with SRE/DevOps to improve CI/CD, monitoring, and release processes.

      About you:
    • 5+ years of hands-on experience with in web development;
    • 4+ years of backend experience with Node.js / NestJS;
    • 3+ years of hands-on experience with JavaScript / TypeScript;
    • Strong knowledge of PostgreSQL and experience with an ORM (TypeORM or Prisma);
    • Solid frontend skills with React, Redux Toolkit, and Next.js;
    • Good understanding of CSR, SSR, and SSG and when to use each in modern web apps;
    • Experience writing unit and integration tests;
    • Comfortable discussing architecture, design patterns, and best practices;
    • Proactive, open to feedback, and confident working in a team environment;
    • Product-minded β€” you care about how technical decisions impact users and the business;
    • ο»ΏUpper-Intermediate English level.

      Will be a plus:
    • Actively use AI tools like Cursor, GitHub Copilot, ChatGPT, or Claude Code;
    • Experience with AWS, Kubernetes, and CI/CD pipelines;
    • Hands-on work with third-party services such as: Payment providers (Solidgate or similar), Email marketing platforms, Zendesk or customer support tools;
    • Understanding of product and business metrics like LTV, ARPU, CPA, and conversion rates.
       

    What you get at BetterMe:
    A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.
    Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.
    Growth opportunities. 90% of our leads have grown within the company. There’s space for initiative, new responsibilities, and real career upgrades.
    Flexible work format. Choose what works best for you β€” office, remote, or hybrid.
    Wellness in practice. Offline: workouts with professional trainers in our corporate gym, massage, corporate lunches, sports, and team activities β€” everything you need to recharge and reset together. Online: regular online workouts, partner discounts, and free access to our products.
    Health insurance & corporate doctor.
    Time off & balance. 20 paid vacation days, paid sick leave, and additional days off around public holidays.
    Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.
    Support for sports events. We cover entry fees and encourage the team to compete and participate together.
    Modern equipment. We provide new hardware and everything you need for productive work.
    Legal & finance support. Experienced lawyers and financial specialists are always there to help β€” from documents to personal consultations.
     

    Find more about us on social media platforms: Instagram, LinkedIn.

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  • Β· 650 views Β· 149 applications Β· 5d

    Backend Developer (Laravel)

    Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B2
    Location: Stockholm, Sweden (office/remote). Permanent location in the EU or Ukraine is required (we can only consider candidates legally based in the EU or Ukraine). Join SΓΆderberg & Partners Heartpace AB, a Swedish product company building innovative,...

    Location: Stockholm, Sweden (office/remote). Permanent location in the EU or Ukraine is required (we can only consider candidates legally based in the EU or Ukraine).

     

    Join SΓΆderberg & Partners Heartpace AB, a Swedish product company building innovative, reliable software for the European market. We’re looking for a Middle+ PHP Developer (Laravel) who enjoys moving fast, taking real ownership, and shipping production-ready solutions with high engineering standards.

     

    This is not a β€œticket factory” role. We want someone who can deliver outcomes, collaborate tightly with product and engineering, and help us automate processes with AI to increase speed and quality.

     

    What we offer

    • Flexibility: work from our modern Stockholm office or fully remote.
    • Career growth: clear development paths, mentorship, and leadership opportunities.
    • Modern tech stack: Laravel, AWS (S3, ECS, RDS), Docker, event-driven architecture, and more.
    • Professional development: we cover certifications, conferences, and access to Udemy courses to support your growth.
    • AI-first enablement: we actively automate workflows with AI β€” and we’ll compensate relevant AI subscriptions you need for your work.
    • Relocation support: visa sponsorship and relocation assistance for international candidates.
    • Work-life balance: no overtime culture and generous vacation policies.
    • Security matters: we are ISO 27001:2022 certified, meaning we take information security and operational discipline seriously.

     

    What you’ll do

    • Build, optimize, and maintain scalable backend services and APIs using Laravel.
    • Deliver in short cycles: ship β†’ measure β†’ iterate, with a focus on business impact and reliability.
    • Work with SQL and NoSQL data stores (e.g., PostgreSQL, MongoDB): schema design, indexing, query optimization, and performance tuning.
    • Contribute to event-driven architecture using AWS services like SQS/SNS (and related patterns).
    • Collaborate with cross-functional teams (Product, Design, QA, DevOps) to design and deliver customer-facing solutions.
    • Maintain high engineering standards through:
      • clean architecture and design patterns
      • code reviews and PSR compliance
      • automated testing (TDD/BDD where it fits)
      • observability and production readiness
    • Use AI tools to accelerate development workflows (e.g., faster implementation, test generation, documentation, debugging) while keeping quality and security intact.

     

    We value

    • High performance / results-first: measurable impact over activity.
    • Entrepreneurial ownership: be the engine, not the passenger.
    • Data-driven decisions + systems thinking: build solutions that scale and stay maintainable.
    • Fast execution with integrity: speed and reliability.
    • Continuous improvement: skills, mindset, and outcomes.

     

    You’ll thrive here if you…

    • Prefer short cycles: ship β†’ measure β†’ iterate.
    • Can turn ambiguity into execution (and ask the right questions when needed).
    • Care about outcomes over process theater.
    • Enjoy improving systems, not just delivering features.

     

    What we’re looking for

    • 5+ years of software development experience with strong skills in PHP and Laravel.
    • Solid fundamentals: OOP, SOLID, DRY, common design patterns, and version control with Git.
    • Experience with AWS and cloud-native patterns (e.g., S3, ECS, RDS; bonus for CloudFront/Route53/EC2).
    • Strong database skills across SQL + NoSQL, including query optimization and performance mindset.
    • Comfortable in Docker-based environments and modern CI/CD workflows.
    • Strong problem-solving skills, ownership mindset, and attention to detail.
    • English: Upper-Intermediate+ for collaboration and documentation.
    • Language bonus:
      • Swedish is a strong plus (conversational/professional level or native).
      • Ukrainian/Russian is a plus for smoother communication with part of the team from Odessa, Ukraine.
    • AI usage experience: practical experience using AI tools to accelerate development workflows (we’ll support and compensate relevant subscriptions).

     

    Interview process (3 steps)

    1. Screening interview with the Recruiter.
    2. Technical interview with the Tech Lead + live task.
    3. Final approval interview with the CTO.

     

    Why join us?

    At SΓΆderberg & Partners Heartpace AB, you’ll build software that matters β€” with autonomy, strong engineering standards, and a team that values ownership and speed with integrity. If you want to ship real value, improve how we build, and grow in a product company serving Europe, you’ll feel at home here.

     

    Ready to join?

    Apply now and let’s build fast, reliable products together.

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  • Β· 110 views Β· 20 applications Β· 5d

    Full Stack Developer (.Net +AWS+ React) to $6000

    Full Remote Β· Worldwide Β· 7 years of experience Β· English - B2
    About Us Bamboo Card is the Middle East’s leading Digital Prepaid Products Distributor and Rewards Fulfilment agency. Committed to trust, dependability, and excellence, we have been revolutionizing global loyalty programs since 2018. Our comprehensive...

    About Us

    Bamboo Card is the Middle East’s leading Digital Prepaid Products Distributor and Rewards Fulfilment agency. Committed to trust, dependability, and excellence, we have been revolutionizing global loyalty programs since 2018. Our comprehensive portfolio includes eGift Cards, Prepaid Cards, and Top-Ups, delivering flexible solutions for diverse digital prepaid needs. Through strategic services such as a robust API and an advanced Client Portal, we simplify and enhance the seamless delivery of rewards at scale.

     

    Role Overview

    We are seeking an experienced Full Stack Developer to join our growing team at Bamboo Card. The ideal candidate will have strong hands-on experience in full stack development, primarily using .NET / C#, AWS cloud services, and ReactJS. You will be responsible for designing, developing, and maintaining scalable backend services as well as modern, responsive frontend applications.

     

    This role requires a strong focus on performance, scalability, security, clean architecture, and code quality, while working closely with cross-functional teams to deliver high-quality software solutions.

     

    Job Requirements

    Technical Skills

    • .NET / C# Development:
      Extensive experience in building robust, scalable applications using .NET and C#.
    • Frontend Development (ReactJS):
      Strong experience in developing modern, responsive user interfaces using ReactJS, including state management, reusable components, and API integration.
    • AWS Cloud Expertise:
      Solid hands-on experience with AWS services including (but not limited to):
      Lambda, S3, RDS, DynamoDB, SNS, SQS, SAM, and other relevant AWS services.
    • API Development:
      Proven experience designing, building, and consuming RESTful APIs.
    • Database Management:
      Proficient in SQL and NoSQL databases, with experience in data modeling, performance tuning, and optimization.
    • CI/CD Pipelines:
      Experience implementing and maintaining CI/CD pipelines to enable automated, reliable deployments.
    • Version Control:
      Proficient with Git and modern version control workflows.
    • Architecture:
      Experience working with microservices and serverless architectures, designing scalable and maintainable systems.
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  • Β· 45 views Β· 7 applications Β· 5d

    Senior Full-Stack .NET+React Engineer IRC289054

    Full Remote Β· Ukraine Β· 6 years of experience Β· English - B2
    Description GlobalLogic is searching for a motivated, results-driven, and innovative software engineer to join our project team at a dynamic startup specializing in pet insurance. Our client is a leading global holding company that is dedicated to...

    Description

    GlobalLogic is searching for a motivated, results-driven, and innovative software engineer to join our project team at a dynamic startup specializing in pet insurance. Our client is a leading global holding company that is dedicated to developing an advanced pet insurance claims clearing solution designed to expedite and simplify the veterinary invoice reimbursement process for pet owners.

    You will be working on a cutting-edge system built from scratch, leveraging Azure cloud services and adopting a low-code paradigm. The project adheres to industry best practices in quality assurance and project management, aiming to deliver exceptional results.

    We are looking for an engineer who thrives in collaborative, supportive environments and is passionate about making a meaningful impact on people’s lives. If you are enthusiastic about building innovative solutions and contributing to a cause that matters, this role could be an excellent fit for you.

     

    Requirements

    • 6+ years of software development experience with the .NET platform (ASP.NET Core, C#)
    • Strong experience building and consuming REST APIs (OpenAPI, FluentValidation)
    • Knowledge of OAuth 2.0 flows is a plus
    • At least 2+ year of proven experience with Azure Cloud services (Service Bus, Azure Functions, CosmosDB)
    • Hands-on experience with front-end development in React (TypeScript, state management)
    • Hands-on experience with adaptive design
    • Solid understanding of client-server application design and asynchronous programming
    • Experience with CI/CD pipelines in Azure DevOps or equivalent tools
    • Knowledge of containerization (Docker, Kubernetes) is a strong plus
    • Familiarity with low-code/no-code integrations (Power Apps, Power Automate) is desirable
    • Experience with Azure ML/AI services, document recognition, or data-driven workflows is an advantage
    • Proficiency in debugging, refactoring, and clean code design
    • Strong analytical skills with ability to ramp up quickly in new domains
    • Good written and verbal communication skills in English (Upper-Intermediate+)

       

    Job responsibilities

    • Design and implement cloud-native applications leveraging Azure Functions, Service Bus, and CosmosDB
    • Develop front-end applications in React, ensuring responsive UI and seamless integration with back-end services
    • Build and maintain microservices and APIs that integrate with multiple systems, including D365 and data platforms
    • Collaborate with stakeholders to define and negotiate API contracts and ensure reliable system integrations
    • Implement data processing and workflow services with a focus on scalability, performance, and resilience
    • Contribute to the design of low-code solutions integrating Azure ML/AI services for automation (e.g., document recognition, intelligent data extraction)
    • Participate in planning, estimation, and architecture discussions, providing technical guidance
    • Debug and resolve issues of various complexities across the stack
    • Work closely with DevOps and QA to ensure CI/CD pipelines, automated testing, and deployment processes are efficient and robust
    • Follow coding standards and contribute to continuous improvement initiatives within the development team
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  • Β· 65 views Β· 4 applications Β· 5d

    Senior Go Engineer (AI project )

    Full Remote Β· Spain, Poland, Portugal, Romania, Ukraine Β· 4 years of experience Β· English - B2
    About the Role We are looking for a Senior Go Engineer with a passion for high-performance systems and Generative AI. In this role, you will be responsible for building the robust backend infrastructure that powers our AI initiatives. You will leverage Go...

    About the Role

    We are looking for a Senior Go Engineer with a passion for high-performance systems and Generative AI. In this role, you will be responsible for building the robust backend infrastructure that powers our AI initiatives. You will leverage Go for its concurrency and speed while integrating advanced LLM workflows via LangChain. A critical part of your role will be ensuring the reliability and quality of these AI systems by utilizing LangSmith for debugging, testing, and monitoring.
     

    ‍About the Client

    Our customer is an innovation-driven organization leveraging Google Cloud to revolutionize their industry through AI. They focus on moving beyond "proof of concept" AI into production-grade tools. By combining GCP’s Langchain ecosystem, they are building scalable, secure, and highly intelligent applications that solve real-world logistical and data challenges.
     

    Responsibilities

    • Backend Development: Develop and maintain high-performance microservices using Go, focusing on clean code, concurrency, and low-latency API responses.
    • AI Implementation: Build and optimize LLM chains and autonomous agents using LangChain (Go or Python-bridged) to automate complex tasks.
    • Observability & Evaluation: Use LangSmith to trace AI executions, debug complex "chain" logic, and create evaluation datasets to ensure model accuracy and safety.
    • Data Engineering: Work with pgvector or GCP Matching Engine to implement efficient Retrieval-Augmented Generation (RAG) workflows.
    • CI/CD & Quality: Participate in building automated pipelines that include AI-specific testing (evals) to prevent regressions in model behavior.
    • Collaboration: Work closely with the Product Owner to transition requirements into production-ready Go services.
    • Engage with stakeholders to translate business requirements into robust technical solutions.

       

    Qualifications

    • Experience: 4+ years in software engineering, with at least 3+ years of professional experience building and scaling applications in Go.
    • AI Frameworks: Hands-on experience with LangChain and a deep understanding of the LangSmith ecosystem for monitoring and debugging LLM applications.
    • Cloud Expertise: Strong proficiency in Google Cloud Platform (GCP), Cloud Run, GKE, and Cloud Functions.
    • Database Skills: Experience with relational databases and Vector Search extensions (like pgvector) for storing and retrieving high-dimensional embeddings.
    • Testing & Quality: Experience building unit and integration tests for non-deterministic AI outputs.

       

    Would be a plus:

    • Python Proficiency: Ability to read and write Python to collaborate with Data Science teams and utilize the broader ML ecosystem.
    • Industry Experience: Background in logistics, delivery, or complex resource management systems.
    • Messaging: Experience with Google Pub/Sub for building event-driven architectures.
    • Frontend Basics: Familiarity with React to better understand how backend AI responses are consumed by the UI.



    Technologies:  GoLang, Postgresql, Google Cloud, Docker, Github, Github Actions, React, React Query, MUI, Vite

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  • Β· 96 views Β· 7 applications Β· 5d

    PHP Tech Lead

    Full Remote Β· Ukraine Β· Product Β· 6 years of experience Β· English - B2
    We're looking for an experienced Tech Lead to join our team of amazing specialists for innovative fintech project. This role will oversee all backend development team, be responsible for our backend stack and contribute to overall product technical vison....

    We're looking for an experienced Tech Lead to join our team of amazing specialists for innovative fintech project. This role will oversee all backend development team, be responsible for our backend stack and contribute to overall product technical vison. 

    Requirements:

    • At least 3 years of experience in Team/Tech lead role;
    • Deep understanding of Symfony / DDD / Hexagonal architecture;
    • Confidence with PostgreSQL, Redis;
    • Experience with Rabbit MQ / Kafka;
    • Understanding of security, deployment processes, SAST tools;
    • Ability to read and communicate in English;
    • Understanding of agile methodologies / scrum.


    Responsibilities:

    • Technical leadership;
    • Technical processes (e.g. code review, SAST, etc.);
    • Code and tests quality;
    • Architecture and design;
    • HLE's;
    • Technical help and consultations for planning and cross-team communication;
    • Dev Interviews;
    • Technical team resources management;
    • Technical team motivation and team spirit.


    Will be a plus:

    • Amazon cloud stack;
    • Previous participation in Fintech projects;
    • English: B2+;
    • Previous experience in leading distributed teams.
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  • Β· 173 views Β· 52 applications Β· 5d

    Middle/Senior PHP Developer (Web Portals)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· English - B1
    We’re Applyftβ€” an IT product company which creates value-driven mobile apps. Our journey began with the Geozilla family locator product, but now our portfolio consists of six apps in Family Safety, Entertainment and Mental Health Spheres. Now we are...

    We’re Applyftβ€” an IT product company which creates value-driven mobile apps. Our journey began with the Geozilla family locator product, but now our portfolio consists of six apps in Family Safety, Entertainment and Mental Health Spheres.

    Now we are looking for a Middle/Senior PHP Developerto join our Engineering team.

     

    What you’ll do:

    1. Develop and maintain backend services in a high-load microservices environment.
    2. Integrate third-party services, including payment gateways and marketing analytics platforms.
    3. Ensure security, scalability, and performance optimization of backend systems.
    4. Collaborate closely with the mobile, frontend, DevOps, and QA teams to ensure seamless delivery.
    5. Write unit tests using PHPUnit to ensure high code quality and coverage.
    6. Troubleshoot, debug, and optimize backend applications.
    7. Participate in architectural discussions and contribute to the evolution of the system.
    8. Integrating payment systems (e.g., Stripe, PayPal).
    9. Integrating marketing analytics systems.

    About You:

    1. 3+ years of experience in backend development with PHP (using frameworks Symfony, Laravel, Yii).
    2. Strong experience with Docker/Kubernetes.
    3. Hands-on experience with microservices architecture in production environments.
    4. Experience integrating payment systems (e.g., Stripe, PayPal).
    5. Experience with integrating marketing analytics systems.
    6. Proficient in building and consuming REST APIs.
    7. Solid knowledge of SQL and experience with MySQL or other relational databases.
    8. Experience with message queues such as RabbitMQ or SQS for asynchronous processing.
    9. Good understanding of testing principles and experience with PHPUnit.
    10. Knowledge of caching tools like Redis or Memcached for performance optimization.
    11. English level: Intermediate.
    12. Strong team player with exceptional communication and problem-solving skills.

    Will be a plus:

    1. Familiarity with NoSQL databases like MongoDB or Redis.
    2. Understanding of Event-Driven Architecture and CQRS patterns.

     

    We Offer:

    • Remote-First culture: We provide a flexible working schedule and you can work anywhere in the world.
    • Health taking care program: We provide Health insurance, sport compensation and 20 paid sick days.
    • Professional Development: The company provides budget for each employee for courses, trainings and conferences.
    • Personal Equipment Policy: We provide all necessary equipment for your work. For Ukrainian employees we also provide Ecoflow.
    • Vacation Policy: Each employee in our company has 20 paid vacation days and extra days on the occasion of special evens.
    • Knowledge sharing: We are glad to share our knowledge and experience in our internal events.
    • Corporate Events: We organize corporate events and team-building activities across our hubs.
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  • Β· 121 views Β· 24 applications Β· 5d

    Middle Full Stack .Net Engineer IRC287293

    Full Remote Β· Ukraine Β· 3 years of experience Β· English - B2
    Description Our client is a big medical equipment manufacturer located in the United States. We have completed a lot of projects for them during the last 18+ years and continue our strong relationship. We are creating software information systems...

    Description

    Our client is a big medical equipment manufacturer located in the United States. We have completed a lot of projects for them during the last 18+ years and continue our strong relationship. We are creating software information systems providing management and reporting capabilities for customer equipment in the field. Currently, we are extending our team and looking for a passionate and motivated Middle Full Stack .Net Engineer with 2+ years of relevant experience. The right candidate must be a team player with strong communication skills and be comfortable working in a fast-paced environment.

     

    Requirements

    ● 2+ years of development experience with the .NET platform.
    ● Experience with ASP.NET Core Web API, SOA, Cloud Services (AWS).
    ● Experience with React. Patterns: SPA, Micro Frontend Architecture (is a plus)
    ● TypeScript development experience.
    ● Experience in client/server unit testing.
    ● Experience with gRPC is a plus
    ● Experience with AWS infrastructure is a plus: S3, Lambda (Python Runtime)
    ● Good debugging, coding, and design skills.
    ● Demonstrated ability to come up-to-speed quickly on a new technical domain/product area.
    ● Good written and verbal communication skills.

     

    Job responsibilities

    ● Implement new features, unit tests, automated integration tests for the complex healthcare system
    ● Participate in estimation and planning sessions
    ● Investigate different complexity issues and debug code
    ● Business communication and close collaboration with all project stakeholders on a daily basis

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  • Β· 124 views Β· 20 applications Β· 5d

    Software Engineer Trainee (Node.js, LLM and Web3) to $500

    Part-time Β· Full Remote Β· Ukraine Β· English - B1
    ABCloudz is a dynamic technology company specializing in software development, modernization, and digital transformation, with a strong focus on building AI-driven solutions. We are looking for a motivated Trainee Software Engineer who is eager to grow in...

    ABCloudz is a dynamic technology company specializing in software development, modernization, and digital transformation, with a strong focus on building AI-driven solutions.
    We are looking for a motivated Trainee Software Engineer who is eager to grow in development and take part in AI research and implementation.
    If you already have a foundation in JavaScript, TypeScript, and Python and want to develop your skills while working with AI and Web3 technologies, this is the perfect opportunity to start your career and Internship Program with us.

     

    Requirements

    • Willingness to learn and thirst for knowledge
    • Basic knowledge of Object Oriented Programming
    • Solid knowledge of Java Script and TypeScript
    • Knowledge of Python
    • Understanding of basic NodeJS concepts
    • Understanding REST API
    • Experience with Linux-like OSs, console
    • Basic understanding of algorithms and data structures
    • Basic knowledge of Git, Docker (console or UI clients)
    • Experience with relational DBs, basic SQL knowledge
    • At least the Intermediate level of English

       

    Will be a plus

    • Understanding WebSockets
    • Understanding software architectures and architecture patterns
    • Familiarity with module testing
    • Understanding NoSQL DBMS (MongoDB, Redis)
    • Familiarity with Nest.JS
    • Familiarity with LLM and ML
    • Familiarity with web3 technologies

       

    Responsibilities

    • Develop and maintain backend features using Node.js and NestJS under guidance
    • Implement REST and basic GraphQL endpoints following existing patterns
    • Contribute to microservice-based applications
    • Implement simple inter-service communication using NATS or RabbitMQ. Handle basic event publishing and consuming
    • Assist in integrating LLM-based features using existing SDKs or APIs
    • Interact with blockchain networks using libraries
    • Assist in implementing wallet-based authentication
    • Implement and test smart contract interactions
    • Write clean, readable, and well-documented code
    • Fix bugs and address technical debt in existing services
    • Write basic unit tests (Jest)
    • Participate in code reviews (as a learner)
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  • Β· 227 views Β· 11 applications Β· 5d

    Software Engineer Python

    Hybrid Remote Β· Ukraine Β· 2 years of experience Β· English - B1
    Intent Solution Group is inviting talented professionals to join our interesting and dynamic team. We are looking for passionate, open-minded, result-oriented Software Engineers with a heart-deep commitment to success. You will have a great chance to grow...

    Intent Solution Group is inviting talented professionals to join our interesting and dynamic team. We are looking for passionate, open-minded, result-oriented Software Engineers with a heart-deep commitment to success. You will have a great chance to grow as a professional in a friendly and supportive team at Intent Solution Group. 

    This is your opportunity to make a difference and work with world class engineering teams, build AI/ML platform that will revolutionize the way in which we buy and consume cellular services.

    Product technical stack:
     

    Data extraction / web crawling platform.

    Tools & frameworks:
     

    • Language: Python
    • Frameworks: Scrapy, Playwright, Selenium, BeautifulSoup
    • Infrastructure: AWS (Lambda, S3, EC2), Docker
    • Data storage: PostgreSQL, MongoDB
    • Automation & orchestration: Celery, RabbitMQ, Airflow
    • Version control / CI: GitHub, GitLab CI
       


     

    Requirements


     

    • 2+ years Python experience with a focus on web scraping
    • Web scraping specific tools such as Chrome Headless, Scrapy, or similar headless browser frameworks
    • Must be a proficient problem solver with proxy rotation, CAPTCHA solving, and anti-bot, and other web scraping counter measures
    • Understanding of HTTP, HTML, JavaScript rendering, and website structures
    • Strong problem-solving mindset and ability to work independently
    • Good communication and teamwork skills
    • Experience working within an agile team leveraging Scrum.

       

    Highly desired
     

    • Experience in large-scale data crawling systems
    • Knowledge of ETL pipelines and data normalization
    • Background in data engineering or backend automation


     

    Benefits

    • You will enjoy working in a flexible, Agile, and multinational environment to drive improvements to our customers’ solutions, design and develop new cloud services and software solutions.
    • Your skills and experience can be applied to build state of the art software products. 
    • You will definitely gain access to continuous learning opportunities and ensure the constant expansion of your skill-sets through working with top global players in technology scene.
    • We provide you a wealth of opportunities to serve as an AWS domain expert and gain deep cross-industry expertise within our expanding customer portfolio.
    • Office in the city centre​.
       


     

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