Jobs Java

Продуктова компанія у пошуку Backend (Java) Developer для роботи у Львові.
 

Продукт, над яким працюватиме спеціаліст, належить до американської корпорації, що входить до списку Fortune 500.

Команда займається розробкою рішень для автоматизації та віддаленого моніторингу роботи вітряних турбін, сонячних електростанцій і масивів зберігання електроенергії. Платформа вже забезпечує ефективну роботу понад 60 тис. високопродуктивних турбін по всьому світу.
 

Передбачаються два етапи спілкування — технічна та менеджерська співбесіди.
 

✔️ Гібридний формат роботи: перші 3 місяці — повний офіс у Львові, далі — 4 дні в офісі, 1 — віддалено.
Офіс у Львові повністю автономний на випадки непередбачуваних ситуацій. 
 

Вимоги: досвід з Java 8, готовність працювати без Spring.
Бажаний досвід з нетворкінгом та оптимізацією коду на Java.

Responsibilities

• Design, develop, and maintain scalable backend applications using Java.
• Build RESTful APIs and integrate with third-party services.
• Participate in system architecture and technical design discussions.
• Optimize application performance, reliability, and security.
• Write clean, maintainable, and well-tested code.
• Collaborate with cross-functional teams including Product Managers, QA, and DevOps engineers.
• Communicate directly with German-speaking stakeholders and participate in meetings in German.
• Mentor junior developers and perform code reviews.
   

Requirements

• 5+ years of commercial experience with Java development.
• Strong knowledge of Java and Spring Boot.
• Experience with Hibernate / JPA.
• Solid understanding of microservices architecture.
• Experience with REST APIs and asynchronous communication.
• Knowledge of relational databases such as PostgreSQL, MySQL, or Oracle Database.
• Familiarity with Apache Kafka or other messaging systems.
• Experience with Docker and Kubernetes.
• Knowledge of CI/CD tools such as Jenkins or GitLab CI/CD.
• Experience with cloud platforms (Amazon Web Services, Google Cloud, or Microsoft Azure) is a plus.
• Upper-Intermediate or higher German language skills (B2+).
• Good English communication skills.
   

Nice to Have

• Experience in finance, insurance, logistics, or enterprise SaaS projects.
• Knowledge of Domain-Driven Design (DDD).
• Experience with automated testing frameworks such as JUnit and Mockito.

About the Company:

🌎 Akvelon is a USA-based software engineering and consulting company with offices across the USA, Poland, Ukraine, Serbia, and Mexico. We are an official vendor of Google and Microsoft and partner with Fortune 500 clients and global technology leaders.

At Akvelon, engineers work on large-scale cloud, AI, distributed systems, and enterprise platform projects used by millions of users worldwide.

Project Description:

We are hiring Senior Engineers for a strategic enterprise cloud data infrastructure project focused on expanding and improving the Managed Kafka Connect ecosystem.

The team is responsible for accelerating onboarding and productionization of first-party Kafka connectors for a large-scale managed streaming platform. Engineers will work on high-scale distributed data infrastructure, connector reliability, cloud integrations, CDC systems, and operational readiness.

Planned connectors include:

• Apache Iceberg Sink
• Debezium MySQL Source
• Debezium MongoDB Source
• SQL Server CDC Source
• Spanner CDC Source
• BigTable Sink
• BigQuery Sink improvements

The project includes:

• OSS connector integration
• Performance optimization
• Cloud authentication integration
• Reliability engineering
• Load testing
• Production readiness
• Kafka Connect ecosystem improvements

This engagement offers the opportunity to work on enterprise-scale distributed systems and modern cloud data infrastructure used by global technology platforms.

Work from the office Poland, Krakow

Responsibilities:

• Integrate and productionize Kafka Connect connectors
• Improve performance, scalability, and reliability of distributed data systems
• Optimize JVM applications and troubleshoot bottlenecks/OOM issues
• Work with Kafka Connect internals and connector lifecycle
• Implement cloud authentication and networking integrations
• Participate in operational readiness activities:
  • Load testing
  • Probers
  • Playbooks
  • Launch reviews
• Collaborate with distributed engineering teams
• Contribute to backend services written in Java and partially Go

Requirements:

Must Have:

• 5+ years of backend engineering experience
• Strong Java / JVM expertise
• Experience with performance tuning and troubleshooting
• Strong understanding of distributed systems
• Hands-on experience with Apache Kafka and Kafka Connect
• Experience debugging production infrastructure issues
• Experience with build systems and dependency management
• Experience with cloud infrastructure (preferably GCP)
• Upper-Intermediate+ English

Nice to Have:

• Apache Iceberg experience
• Debezium experience
• CDC systems knowledge
• Go backend development experience
• Kubernetes knowledge
• SRE / operational readiness background
• OSS contribution experience
• Experience with large-scale platform engineering

Working Conditions and Benefits:

• Paid vacation and sick leave
• Official state holidays — 9-11 public holidays per year
• Professional growth through challenging projects and the opportunity to master new technologies
• Flexible working schedule: 8 hours per day, 40 hours per week
• Personal Career Development Plan (CDP)
• Employee support programs (discounts, healthcare, legal assistance)
• Paid external training, conferences, and professional certifications aligned with business goals
• Internal workshops, seminars, and English classes
• Corporate library with paper and e-books

This position is not open to U.S.-based applicants.

Ready to work on distributed systems? Apply now and join our team.

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product:

Over the past few years Coro has received $275M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role:

This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery. You will work on core backend systems behind Coro’s cybersecurity platform, building and scaling high-load services that process large volumes of security and telemetry data in real time.

These systems are responsible for collecting, processing, and analyzing data from multiple sources, including endpoints, cloud environments, and product integrations. They support critical product capabilities such as threat detection, security analytics, anomaly identification, and automated response workflows, making this a mission-critical leadership role at the core of Coro’s product.

If you are looking for a role where you can combine leadership with technical ownership, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform, this is the role for you

Key Responsibilities:

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team’s various services and features
• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Dripify (🔗 dripify.com) is a pioneering, remote-first IT product company specializing in outreach automation products. Our platform empowers businesses by revolutionizing hiring, sales, and marketing communication processes, making interactions more efficient and seamless.

We’re looking for a Java Team Lead who will split their time between hands-on backend development (50%) and technical/team leadership (50%).
 

You’ll lead a team of 5 engineers, ensure delivery quality, and own architectural decisions, while also contributing code and driving technical excellence.
 

Requirements
 

• 5+ years of hands-on Java development experience (Java 21+).
• 2+ years leading a development team.
• Deep practical experience with Spring Boot modules (Web, Security, Data, Messaging).
• Strong knowledge of Java concurrency, multithreading, and backend system design.
• Proficient in SQL databases (PostgreSQL preferred).
• Experience with REST APIs and asynchronous messaging (SNS/SQS).
• Skilled in CI/CD, code quality gates, and automated testing.
• Hands-on with Docker, Linux, and system-level debugging.
• Familiar with monitoring/logging tools (ELK, Prometheus, Grafana).
• Strong focus on security best practices: auth, validation, access control.
• Working knowledge of AWS: IAM, EC2, RDS, S3, CloudWatch, Secrets Manager.

Would be a plus:
 

• Experience in designing and operating microservice-based architectures.
• Familiarity with Kubernetes (EKS or self-managed).
• Experience with Terraform and Infrastructure-as-Code.
• AWS Certifications (e.g., Developer Associate, Solutions Architect).

• Bachelor’s or Master’s in Computer Science or related field.
  
   

   

Responsibilities
 

Development (50%)

• Build modular, secure, and maintainable backend systems using Java 21+ and Spring Boot.
• Design and implement RESTful APIs and event-driven services (SNS/SQS).
• Write tested, high-quality code with strong focus on unit/integration testing.
• Ensure CI/CD integration, monitoring, and production readiness.
• Drive system performance and scalability improvements.

Leadership & Delivery (50%)

• Lead a backend team: mentorship, code reviews, and engineering growth.
• Own delivery quality: scope planning, progress tracking, risk mitigation.
• Document and communicate architectural decisions.
• Coordinate cross-functionally with product managers, DevOps, and QA.
• Promote best practices in secure development and clean architecture.
   

Work conditions
 

• 100% remote position, providing flexibility and work-life balance.
• Competitive salary reflecting your skills and expertise.
• 24 days of paid vacation per year to recharge and relax.
• 10 days of paid sick leave.
• Educational opportunities.
• Compensation budget for medical and hobby/sport expenses.
• Generous budget for birthdays and anniversaries.
• Online and offline team events.

• A collaborative and innovative work environment with passionate team members.

  
   

Hiring process
 

✅ Interview with Recruiter (45 min) — ✅ Technical interview with Engineering Manager (90 min) — ✅ Interview with CTO (45 min) — ✅ Reference check — ✅ Offer

Job Description

Job Description

• Minimum of 4 years of experience in software development, with a focus on designing and implementing highly scalable web applications, data pipelines, and cloud-based microservices
• Proficiency in Java programming language and related technologies. Experience with frameworks such as Spring, Hibernate, and Apache Kafka, and cloud-native services is highly desirable
  
   
• Proven experience in UI/Angular development is required
• Strong understanding of database concepts and experience with SQL and NoSQL databases (e.g., MySQL, Oracle, Cassandra, DynamoDB, Redis).
• Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and experience deploying applications in cloud environments is advantageous
• Experience with microservices and event-driven architectures
• Strong analytical and problem-solving skills with the ability to troubleshoot complex issues and implement effective solutions
• Excellent written and verbal communication skills with the ability to articulate technical concepts clearly and effectively
• Ability to work both independently and collaboratively in a fast-paced, agile environment. Strong team player with a positive attitude and a passion for technology

Job Responsibilities

Develop highly scalable, reliable web scale applications, tools, and frameworks to meet business requirements.

Implement cloud-based microservices leveraging event-driven architectures.

Collaborate with cross-functional teams to design and build efficient and robust data pipelines for batch, near-real-time, and real-time processing using Java technologies.

Optimize applications, data pipelines, and microservices for scalability, performance, and efficiency to handle large volumes of data and traffic in a cloud environment.

Ensure adherence to coding standards, best practices, and software development methodologies. Perform code reviews and provide constructive feedback to team members.

Implement monitoring and alerting solutions to ensure the reliability and availability of applications, data pipelines, and microservices. Participate in troubleshooting and resolution of production issues.

Create and maintain technical documentation, including design documents, architecture diagrams, and system documentation.

Collaborate effectively with cross-functional teams, including product management, QA, and operations. Communicate technical concepts and solutions to both technical and non-technical stakeholders.

Department/Project Description

Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. 

We are looking for a Senior or Lead Software Development Engineer to join a cloud data platform initiative focused on managed Kafka connectors. The role centers on accelerating onboarding of first-party connectors, improving reliability and launch readiness, and helping expand a managed connector ecosystem used in data-intensive cloud services.

Tasks

• Accelerate onboarding of new first-party managed Kafka connectors;
• Improve connector quality, reliability, and operational readiness;
• Integrate authentication and platform-specific cloud requirements;
• Translate connector behavior into implementation details, UI specs, and documentation inputs;
• Support launch gates such as probers, load testing, playbooks, and launch reviews.

Responsibilities

• Strong Java experience, as the core workers and connectors are implemented in Java;
• Practical Go experience for API-facing changes and service integration work;
• Practical experience with GCP cloud;
• Experience integrating, debugging, and improving connector-based or data integration systems;
• Ability to work across performance, stability, authentication, and network-compatibility concerns;

• Strong engineering ownership across delivery, launch readiness, and operational quality.

   

Nice to Have:

• Experience with Kafka Connect ecosystems;
• Experience with CDC-oriented connectors or sink/source integrations;

• Exposure to cloud data systems such as BigQuery, Spanner, Bigtable, Iceberg, or Debezium-based workflows.

   

Engagement Type

• B2B contract.

   

Location / Timezone

• Priority location is Krakow, Poland;
• On-site presence at the Akvelon office

We are looking for a Senior or Lead Software Development Engineer to join a cloud data platform initiative focused on managed Kafka connectors. The role centers on accelerating onboarding of first-party connectors, improving reliability and launch readiness, and helping expand a managed connector ecosystem used in data-intensive cloud services.

Tasks

• Accelerate onboarding of new first-party managed Kafka connectors;
• Improve connector quality, reliability, and operational readiness;
• Integrate authentication and platform-specific cloud requirements;
• Translate connector behavior into implementation details, UI specs, and documentation inputs;
• Support launch gates such as probers, load testing, playbooks, and launch reviews.

Responsibilities

• Strong Java experience, as the core workers and connectors are implemented in Java;
• Practical Go experience for API-facing changes and service integration work;
• Practical experience with GCP cloud;
• Experience integrating, debugging, and improving connector-based or data integration systems;
• Ability to work across performance, stability, authentication, and network-compatibility concerns;

• Strong engineering ownership across delivery, launch readiness, and operational quality.

   

Nice to Have:

• Experience with Kafka Connect ecosystems;
• Experience with CDC-oriented connectors or sink/source integrations;

• Exposure to cloud data systems such as BigQuery, Spanner, Bigtable, Iceberg, or Debezium-based workflows.

   

Engagement Type

• B2B contract or Business Incubator 

   

Location / Timezone

• Priority location is Krakow, Poland;
• On-site presence at the Akvelon office

Our Customer:

A product-focused organization developing innovative enterprise-grade solutions, with a strong emphasis on modern engineering practices, AI-driven development, and high-performance distributed systems.

Your tasks:

• Design, develop, and maintain full-stack applications using Java, Spring, Python, and React.
• Own the entire development lifecycle — from architecture and design to implementation, testing, and deployment.
• Work in an Extreme Programming (XP) environment with remote pair programming.
• Build scalable microservices-based systems using Spring Boot and related technologies.
• Develop responsive and reactive user interfaces using modern JavaScript frameworks.
• Apply TDD/BDD practices to ensure high-quality, maintainable code.
• Contribute to DevOps processes, including CI/CD pipelines and automation using Jenkins.
• Design and deploy cloud and hybrid solutions in containerized environments (Kubernetes, Cloud Foundry).
• Collaborate closely with cross-functional teams in a fast-paced, dynamic environment.
• Participate in building AI-driven features, including working with LLMs and prompt engineering.

Required experience and skills:

• 8+ years of experience in software development with strong expertise in Java and Spring.
• 2+ years of hands-on experience with Python.
• Experience working in microservices architecture (Spring Boot / Spring Cloud).
• Strong understanding of modern software design patterns (microservices, service discovery, circuit breaker).
• Hands-on experience with TDD/BDD frameworks (Junit, Jasmin, Mockito, Protractor/Selenium).
• Experience with DevOps practices and tools, including Jenkins.
• Experience with containerization and orchestration (Kubernetes, Cloud Foundry).
• Experience building and deploying cloud or hybrid solutions.
• Experience with functional programming and Java Streams.
• Experience with reactive UI development.
• Hands-on experience with Claude.code.
• Upper-Intermediate or higher level of English.

Would be a plus:

• Frontend development experience, primarily with React.
• Experience with data analytics or data-driven systems.
• Knowledge of Kotlin.

We are looking for an Advanced Software Engineer Java who is passionate about technology, development and deployment of a SaaS product.

Innovecs is a global digital transformation tech company with a presence in the US, the UK, the EU, Israel, Australia, and Ukraine. Specializing in software solutions, the Innovecs team has experience in Supply Chain, Healthtech, Software & Hightech, and Gaming.
For the fifth year in a row, Innovecs is included in the Inc. 5000 and recognized in IAOP’s ranking of the best global outsourcing service providers. Innovecs is featured in the Global Top 100 Inspiring Workplaces Ranking and won gold at the Employer Brand Management Awards.

Our value to you: 

• Flexible hours and remote-first mode
• Competitive compensation
• Complete Hardware/Software setup – anything you need for work
• Open-door culture, transparent communication, and top management at a handshake distance
• Health insurance, vacation, sick leaves, holidays, paid maternity/paternity leave
• Access to our learning & development center: workshops, webinars, training platform, and edutainment events
• Virtual team buildings and social activities 

If you feel like you’re the perfect match for this role, drop us your CV! 

There are no limitations, no barriers when the right people are on your way — apply for the vacancy and succeed with us

Innovecs is an equal opportunity employer. All hiring decisions are based on professional qualifications, skills, and experience. We are committed to a transparent, merit-based recruitment process that prevents discrimination and ensures equal opportunities for all candidates. Reasonable accommodations are available upon request throughout the recruitment process to support accessibility and inclusion.

Requirements

• At least 7+ years of experience in java server-side, and must have deep understanding of reactive systems experience in areas: java concurrent programming, java security, reactive programming, network programming and mechanical sympathy understanding,
• Knowledge of programming patterns and design principles which and solving complex problems using algorithms,
• Experience in low latency / high-throughput algorithms,
• Experience in building large-scale, multi-tenant mission-critical systems,
• Understanding of transport protocols and formats: WebSocket, Google Protocol Buffers, Json, SBE,
• Background with the Fin-Tech industry - big advantage,
• Experience with ultra-low-latency systems - big advantage,
• Experience with Aeron technology - big advantage,
• Learn and Contribute to open source projects - big advantage,
• Familiarity with microservices architecture - advantage,
• Experience with cloud and bare-metal environments - advantage,
• Experience with Kubernetes - advantage,
• Experience at working with distributed remote teams,
• Passion Curiosity to constantly learn and improve,
• Passion to help the team members to learn,
• Fluent Verbal and Written English Skills required,
• Self-learning enthusiasm,
• Taking ownership and responsibility,
• Communicative and transparent,

• Team Player.

   

Responsibilities

• Be part of an agile team, the core technological team to build and advance a low latency / high-throughput trading platform,
• Participate in all aspects of the development and influence foundation for a system affecting a huge market,
• Lead features from design to production,
• Take active part of Teamwork and team spirit, share and learn from each other,
• Take part in a deep tech product development,
• Take part in influencing the evolution of exberry architecture,
• Take part in influencing product development and growth,
• Take part in ever improving the product delivery life-cycle,
• Help the agile team meet its goals.

We are looking for a Software Engineer to join our Application Platform team to help us with a cloud migration project for our subsidiaries. Application Platform provides a range of cloud products for product teams in the company, and our goal is to enable our users to derive maximum value from our products in a self-service manner, operating on a ‘You Build it, You Run it’ model. We provide an integrated AWS platform that hosts over one thousand services on EKS and Serverless environments, serving 1 billion viewer requests daily. We manage CI/CD infrastructure hosted on Jenkins & JFrog which hosts over 90 pipelines. Our product teams monitor and observe their applications using Datadog.

Hard skills:
• Working experience in TypeScript with Node.js and Java with Spring Boot.
• Proficiency in working with PostgreSQL.
• In-depth experience with Docker, networking, and Linux servers.
• In-depth knowledge of Amazon Web Services and interacting with their services and API, for example knowledge in some but not all: CDK, Lambda, RDS, ALB, EC2.
• Ability to create and consume REST APIs.

Soft skills:
• Pragmatism with an eye on how to simplify complex systems
• A product mindset
• Ability to drive technical decisions, to explain technical decisions and details at varying levels of abstraction (including other engineers and management)
• Be a mentor and share your knowledge with colleagues

Bonus qualifications:
• Familiarity with Tomcat, .NET, or PHP is a plus.
• Experience with PostGIS is nice to have.
• Being able to read Vue.js code can help with some of the projects.
• An understanding of SOAP helps with migrating some of the legacy services.

Example projects:
• Dockerize an existing service that has production load running on a VPS and deploy the new Dockerized version in a new managed Kubernetes environment.
• Move a PostgreSQL database currently running on a VPS to AWS RDS and migrate data with minimal downtime.

Project language: English
Project start: asap
Project duration: 9 MM - Fulltime 
Location: remote

We are looking for an experienced Senior Java Full Stack Engineer to join our development team.
 

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

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps
• Working in XP with Remote pairing
   

Requirements:

• BS degree in Computer Science or equivalent combination of education and experience
• 5-6+ years of full-stack development
• 5-6+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment
• Versatility and the capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem-solving aptitude
• Good English - verbal and written

About our client
Our customer is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.

About The Role

Our Senior Backend Software Engineer will be responsible for architecting, developing, and maintaining the high-performance backend services that power the core platform. Leveraging deep expertise in Java and distributed systems, you will collaborate with cross-functional teams to deliver secure, scalable solutions while exploring and integrating cutting-edge blockchain technologies.

Key Responsibilities

• Design, build, and maintain high-throughput backend services and APIs in Java.
• Drive architecture discussions to enhance system scalability, resiliency, and performance.
• Prioritize security and compliance as core aspects of service design and delivery.
• Collaborate with product, security, DevOps, and compliance teams on cross-functional initiatives.
• Mentor engineers and lead by example with high engineering standards and best practices.
• Research and prototype blockchain integration opportunities (e.g., node syncing, client tooling).
• Advocate for maintainable, modern infrastructure informed by industry best practices.

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science or related field.
• At least 8 years of professional software engineering experience without a degree in Computer Science-related field , or at least 6 with an advanced degree in a different field.
• Strong communication skill and collaboration skills, motivation, problem solving mind set. 
• Strong proficiency in Java and experience with modern frameworks and distributed systems.
• Experience with performance optimization (e.g., low-latency systems, microservices).
• Knowledge of security and compliance best practices in financial or regulated contexts.
• Interest or hands-on experience in blockchain, crypto infrastructure, or decentralized systems.
• Strong collaboration and mentorship skills in a fast-moving, cross-functional environment.
• Hands-on experience with BDs, async messaging (Kafka, RabbitMQ, etc.), CI/CD stack

NB: This role requires working hours that overlap with the West Coast (PST) time zone. Candidates are expected to follow the schedules below (Monday–Friday), based on their location:

• LATAM: 11:00 – 20:00
• Colombia: 09:00 – 18:00
• Europe (EET): 12:00 – 21:00
• Europe (CET): 11:00 – 20:00

Please note that alignment with these working hours is an essential requirement of the role.

We offer*:

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

*not applicable for freelancers

ABOUT THE ROLE
We are looking for a Technical Application Support Engineer to provide backup coverage for our platform and related audience workflows. This is NOT a primary feature development role. 

The person will act as a technical backup and first responder when the Europe-based team is unavailable, helping India and US teams investigate issues, validate system behavior, check logs, inspect API/database state, and escalate with clear technical context when deeper engineering work is required.

Platform stack:
Scala Pekko HTTP Kafka Pekko Streams MongoDB PostgreSQL, Facebook/Meta, LinkedIn Google Ads Microsoft/Bing Ads, Reddit Pinterest TikTok Twitter/X

RESPONSIBILITIES
• Provide backup technical support for internal API and related workflows
• Investigate production and staging issues using API responses, logs, metrics, Kafka state, MongoDB, and PostgreSQL
• Understand and trace the core system flow related to external platform integrations
• Investigate why entities failed to create/update, synchronize, or retrieve reports correctly
• Troubleshoot platform-specific issues (Facebook/Meta, LinkedIn, etc.)
• Validate common token/auth issues including expired user tokens, missing permissions, and platform account
mapping problems
• Use Kibana, Grafana, Prometheus, Graphite, Kafka metrics, and database queries to support investigations
• Follow runbooks for safe operational checks and simple remediation steps
• Document findings clearly and escalate with enough context for engineering teams to act quickly
• Work closely with teams in India, Europe, and the US

REQUIRED QUALIFICATIONS
• 3+ years in application support, production support, technical operations, backend QA, SRE-lite, or similar roles
• Strong understanding of REST APIs, JSON, HTTP status codes, and backend request flows
• Hands-on experience reading logs and investigating production issues
• Practical experience with MongoDB and SQL/PostgreSQL for read-only investigation
• Basic working knowledge of Kafka or event-driven systems
• Familiarity with Kubernetes-based applications at support level
• Ability to use dashboards and observability tools such as Kibana, Grafana, Prometheus, or similar
• Strong troubleshooting mindset with clear written communication in English
• Ability to work with distributed teams across India, Europe, and the US

PREFERRED QUALIFICATIONS
◆ Experience supporting Scala, Java, or JVM backend systems
◆ Familiarity with Apache Pekko or Akka HTTP / Streams

◆ Experience with advertising platforms or marketing APIs
◆ Familiarity with OAuth, refresh tokens, access tokens, system users, and platform permissions
◆ Basic understanding of CI/CD, Jenkins, GitHub Actions, Docker, and Kubernetes deployments
◆ Experience creating support runbooks and incident summaries

WHAT SUCCESS LOOKS LIKE
After onboarding, this person should be able to:
• Understand the platform request/event flow end-to-end
• Check whether a problem is in API validation, Kafka processing, event handling, MongoDB/PostgreSQL state, external
platform API, or something else
• Identify common platform integration differences
• Answer basic "what happened?" questions without waking up the European owner
• Escalate only when deeper engineering changes or platform-specific decisions are needed
• Maintain useful troubleshooting documentation for repeated issues

ABOUT PROJECT

We are a leading technology company that uses real-world data in real-time to optimize campaign performance and revolutionize health decision-making. Leveraging proprietary datasets and methodology, we target healthcare professionals and patients with an unprecedented level of accuracy—delivering unparalleled results to the clients we serve.

We are helping our partner — a fast-growing product company in the iGaming space — find a Senior Java Developer to join their backend team.

This is not a “just write code” role.

This is about building systems, making decisions, and owning the result.

What this role is really about

You’ll be working on a high-load casino product, where:

• systems process real-time events
• performance matters
• architecture decisions have real impact

The team builds services from scratch and owns them end-to-end.

What you’ll be doing

• Build new backend services from scratch
• Participate in architectural and technical decisions
• Work with microservices and distributed systems
• Solve complex technical challenges
• Collaborate in a cross-functional team (product / QA / dev)
• Take ownership of what you build — not just tasks

What we’re looking for

• 5+ years of experience with Java
• Strong experience with microservices architecture (2+ years)
• Deep understanding of distributed systems
• Hands-on experience with:
  • Spring Boot
  • PostgreSQL
  • Kafka (or similar messaging systems)
  • SQL + NoSQL databases
• Experience with AWS / Kubernetes will be a strong plus
• gRPC — nice to have

But more importantly:

You think, not just code

You take ownership

You can explain your decisions

What you get

• Product company (not outsourcing)
• Real impact on architecture and product
• Strong engineering team
• Fast-paced environment with real challenges
• Remote work