CrawlJobs Logo

Junior Backend Engineer

https://www.circlek.com Logo

Circle K

Location Icon

Location:
Poland, Warszawa

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Employment contract

Salary Icon

Salary:

Not provided
Save Job
Save Icon
Apply Position

Job Description:

We are looking for a Junior Software Developer who can help us on our journey. Circle K mission is simple: we want to make journeys easy and more enjoyable for our costumers. Have you heard about frictionless fueling, smart checkout, mobile payment for car wash? It's just a small piece of our Customers Services product portfolio, much more to come. We are global so you will have a chance to work with engineers around the globe. We are technology geeks so you will have a chance to exchange the knowledge and learn from more experienced developers. We do want to keep improving, keep being better version of us every day, inspect and adapt through agile ways of working.

Job Responsibility:

  • Plan, execute and deliver on the roadmap for our solutions
  • Work with the team of experienced developers to build best in class software following market best practices and standards
  • Develop micro-services in Java 11+ and deploy them to cloud environment
  • Build distributed systems
  • Work in a Scrum team, coordinate with PO, SM, Architects and Testers
  • Engage and contribute to product / ideas, both from technical and business perspective
  • Work with CI/CD systems and Code Reviews, contribute ideas and improvements to existing workflow
  • Share knowledge across the team

Requirements:

  • Computer Science / IT graduate
  • Java 11+ with Spring Boot basic knowledge
  • Basic knowledge about public clouds, AWS, (ECS, Kubernetes, Terraform), Azure
  • Basic experience in test automation for unit and integration testing
  • Basic experience with requirement engineering and working with a product backlog
  • Good English skills both spoken and written

Nice to have:

  • Scrum
  • SAFE
  • TDD, BDD
  • Security at scale
What we offer:
  • Annual bonus
  • Private medical care
  • Possibility for author's tax deduction
  • Cafeteria Platform/Multisport
  • English lessons subsidized by the company
  • Group insurance
  • Attractive discounts for products and services at our stations
  • Employee stock purchase plan
  • LYRA
  • Modern and convenient office
  • Trainings & possibility to develop skills in a wide international environment

Additional Information:

Job Posted:
July 29, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Icon
View All Jobs In This Company
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Junior Backend Engineer

Junior Backend Software Engineer

We're looking for a Backend Software Engineer to join our team who is passionate...
Location
Location
Poland , Gdańsk
Salary
Salary:
Not provided
https://www.atlassian.com Logo
Atlassian
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 1+ years of experience in building and developing backend applications
  • Experience in crafting and implementing highly scalable and performant RESTful microservices
  • Proficiency in any modern object-oriented programming language (Java, Kotlin, Go, Scala, or Python)
  • Fluency in any database technology (for example, RDBMS like Oracle or Postgres or NoSQL like DynamoDB or Cassandra)
  • Passion for collaboration
  • Broad knowledge and understanding of the SaaS, PaaS, and IaaS industry with hands-on experience with public cloud offerings (AWS, GAE, Azure)
  • Familiarity with cloud architecture patterns and an engineering discipline to produce software with quality.
Job Responsibility
Job Responsibility
  • Build and ship features and capabilities daily in a highly scalable, cross-geo distributed environment
  • Be part of an amazingly open and collaborative work environment with other experienced engineers, architects, product managers, and designers
  • Review code with best practices of readability, testing patterns, documentation, reliability, security, and performance considerations in mind
  • Ensure complete visibility, error reporting, and monitoring of backend services
  • Participate in Agile software development, including daily stand-ups, sprint planning, team retrospectives, and show-and-tell demo sessions.
What we offer
What we offer
  • Health coverage
  • Paid volunteer days
  • Wellness resources
  • Fulltime
Read More
Arrow Right

Backend Engineer

A backend engineer at Hebbia blends expertise in systems, application layer soft...
Location
Location
United States , New York City; San Francisco
Salary
Salary:
160000.00 - 300000.00 USD / Year
hebbia.ai Logo
Hebbia
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's or Master's degree in Computer Science, Data Science, Statistics, or a related field
  • 5+ years software development experience at a venture-backed startup or top technology firm, with a focus on backend software engineering
  • Proficiency in building backend and API systems using technologies such as Python, Java, or Go
  • Extensive experience with cloud platforms (e.g., AWS)
  • Working experience with one or more of the following: Kafka, ElasticSearch, PostgreSQL, and/or Redis
  • Ability to analyze complex problems, propose innovative solutions, and effectively communicate technical concepts to both technical and non-technical stakeholders
  • Proven experience in leading software development projects and collaborating with cross-functional teams
  • Enthusiasm for continuous learning and professional growth
  • Embraces rapid prototyping with an emphasis on user feedback
  • Autonomous and excited about taking ownership over major initiatives
Job Responsibility
Job Responsibility
  • Own critical system components
  • Unlock O(1) universal indexing
  • Build and iterate on our high-scale document build system
  • Drive performance optimization
  • Architect and implement performance-tuning solutions
  • Mentor and guide
  • Provide technical leadership, mentorship, and guidance to junior engineers
What we offer
What we offer
  • PTO: Unlimited
  • Insurance: Medical + Dental + Vision + 401K
  • Eats: Catered lunch daily + doordash dinner credit if you ever need to stay late
  • Parental leave policy: 3 months non-birthing parent, 4 months for birthing parent
  • Fertility benefits: $15k lifetime benefit
  • New hire equity grant: competitive equity package
  • Fulltime
Read More
Arrow Right
New

Senior Software Engineer (Backend)

Tekmetric is looking for a Senior Software Engineer (Backend) to take part in th...
Location
Location
Salary
Salary:
Not provided
tekmetric.com Logo
Tekmetric
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years software engineering experience
  • Experience with Java and SQL databases (2+ years)
  • Enjoy working in fast moving and dynamic environments
  • High standards and a strong work ethic
  • Strong product sense and communication skills
  • Experience working cross-functionally and can work within ambiguity
  • Enjoy bringing innovation and impact to customers
Job Responsibility
Job Responsibility
  • Design and implement scalable services and applications that enable positive user experiences and measurable business growth
  • Provide implementation estimates and evaluations of different solutions
  • Collaborate with and across agile teams to design, develop, test, and support technical solutions
  • Ensure application performance, uptime, and scale, maintaining high standards of code quality and thoughtful application design
  • Manage the end-to-end life cycle on the development of new features
  • Provide technical leadership, mentorship and growth to junior team members as we scale
What we offer
What we offer
  • Flexibility of remote work
  • Competitive base salaries
  • Generous Paid Time Off
  • Paid maternity, parental bonding, and medical leave
  • Comprehensive health benefits (Medical, Dental, Vision, Prescription)
  • Free, confidential counseling through BetterHelp
  • 401(k) Retirement Savings Plan with 100% employer match on contributions up to 6%
  • Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA)
  • Life and Accidental Death & Dismemberment (AD&D) Insurance
  • Up to $60/month toward fitness or mental health
Read More
Arrow Right
New

Senior Software Engineer - Backend

We build simple yet innovative consumer products and developer APIs that shape h...
Location
Location
United States , New York
Salary
Salary:
180000.00 - 270000.00 USD / Year
plaid.com Logo
Plaid
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience with extensive experience in software engineering with a proven track record of shipping successful projects
  • Experience with MySQL or other relational databases
  • Experience working with microservices
  • Excellent coding, testing, and system design skills
  • Prior experience with cross functional collaboration, communication and project management skills
  • Demonstrated leadership skills and the ability to mentor and guide junior engineers
  • Ability to work with operations, product, design, and data science
Job Responsibility
Job Responsibility
  • Design & Development: Build and maintain backend services with a focus on performance, reliability and scalability
  • Collaboration: Work closely with product managers and other stakeholders to define and implement new features that meet product and customer needs
  • Code Quality: Write clean, maintainable and efficient code
  • Testing & Debugging: Develop automated tests to ensure the quality and reliability of the codebase. Troubleshoot and resolve issues
  • Engage in hands-on coding and architectural design, setting and maintaining high technical standards for a high performing team
  • Grow the team via mentorship and leadership, reviewing technical documents and code changes
What we offer
What we offer
  • medical
  • dental
  • vision
  • 401(k)
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Backend

We build simple yet innovative consumer products and developer APIs that shape h...
Location
Location
United States , San Francisco
Salary
Salary:
180000.00 - 270000.00 USD / Year
plaid.com Logo
Plaid
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience with extensive experience in software engineering with a proven track record of shipping successful projects
  • Experience with MySQL or other relational databases
  • Experience working with microservices
  • Excellent coding, testing, and system design skills
  • Prior experience with cross functional collaboration, communication and project management skills
  • Demonstrated leadership skills and the ability to mentor and guide junior engineers
  • Ability to work with operations, product, design, and data science
Job Responsibility
Job Responsibility
  • Design & Development: Build and maintain backend services with a focus on performance, reliability and scalability
  • Collaboration: Work closely with product managers and other stakeholders to define and implement new features that meet product and customer needs
  • Code Quality: Write clean, maintainable and efficient code
  • Testing & Debugging: Develop automated tests to ensure the quality and reliability of the codebase. Troubleshoot and resolve issues
  • Engage in hands-on coding and architectural design, setting and maintaining high technical standards for a high performing team
  • Grow the team via mentorship and leadership, reviewing technical documents and code changes
What we offer
What we offer
  • medical
  • dental
  • vision
  • 401(k)
  • Fulltime
Read More
Arrow Right

Staff Software Engineer, Backend

The Staff Engineer will work closely with AI/ML engineers, product managers, app...
Location
Location
United States , NYC
Salary
Salary:
160000.00 - 190000.00 USD / Year
conductor.com Logo
Conductor
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Completed studies in Computer Science, Mathematics, engineering or a related field or equivalent professional experience
  • 8+ years of experience in software development, with experience in product-driven companies
  • Strong expertise in system design, distributed computing, and scalable architecture patterns for handling large datasets and high-throughput applications
  • Proficiency in multiple programming languages with strong Python coding skills. Experience with Java is highly valued
  • Strong database experience including both SQL and NoSQL systems, with knowledge of data modeling and optimization techniques
  • Experience with AI/ML technologies including LLMs, vector databases (e.g., Milvus), embeddings, and ML frameworks
  • Knowledge of MLOps practices, model deployment, and AI system integration in production environments
  • Experience working across the full software development lifecycle including CI/CD, monitoring, testing, and production deployment
  • Proven track record of technical leadership, mentoring engineers, and driving engineering excellence within teams
  • Up-to-date with rapidly-evolving technologies and demonstrated ability to evaluate and adopt new tools and frameworks
Job Responsibility
Job Responsibility
  • Lead the technical architecture, design, and implementation of large-scale distributed systems and data platforms to support customer needs and business growth
  • Oversee the planning, execution, and successful delivery of complex engineering projects, ensuring adherence to engineering best practices and quality standards
  • Design and build scalable, high-performance backend systems and APIs that handle millions of requests and large datasets efficiently
  • Architect robust data processing pipelines and ETL workflows using modern cloud technologies and distributed computing frameworks
  • Drive technical decision-making across the engineering organization, evaluating trade-offs and establishing engineering standards and practices
  • Lead cross-functional collaboration with product, AI/ML engineering, data engineering, and infrastructure teams to deliver comprehensive solutions
  • Build and maintain CI/CD pipelines, monitoring systems, and deployment automation to ensure reliable software delivery
  • Implement AI/ML capabilities including LLM integration, vector databases, and intelligent content processing workflows
  • Mentor senior and junior engineers, fostering technical excellence and knowledge sharing within the engineering organization
What we offer
What we offer
  • 100% covered employee medical plan
  • a dental & vision plans
  • 401(k) with employer contribution
  • an unlimited vacation policy
  • 10 sick days
  • short-term disability
  • long-term disability
  • generous paid parental leave
  • employee assistance program
  • flexible savings accounts
  • Fulltime
Read More
Arrow Right

Senior Software Engineer, Backend

Kiddom is a groundbreaking educational platform that promotes student equity and...
Location
Location
United States , San Francisco
Salary
Salary:
160000.00 - 220000.00 USD / Year
kiddom.co Logo
Kiddom
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BS or MS in Computer Science or a related field
  • 6+ years professional software engineering experience
  • Experience scaling integration systems
  • Proficiency in working with databases (SQL & NoSQL) such as PostgreSQL, MySQL, MongoDB, or Redis
  • Experience with cloud platforms like AWS, GCP, or Azure, and containerization tools like Docker and Kubernetes
  • Experience with microservices architecture and distributed systems
  • Strong knowledge of design patterns and software engineering best practices
  • You've been through the planning, launching and refactoring phases of code you wrote
  • Excellent problem solving and debugging skills
  • Ability to work as part of a collaborative team in a fast-paced environment
Job Responsibility
Job Responsibility
  • Design, develop, and maintain backend services, APIs, and databases
  • Ensure the scalability, security, and performance of backend systems
  • Collaborate with frontend engineers, product managers, and other stakeholders to deliver high-quality features
  • Optimize applications for performance, reliability, and scalability
  • Conduct code reviews and provide mentorship to junior engineers
  • Troubleshoot and resolve production issues, ensuring system uptime and reliability
  • Work with our customers to troubleshoot issues and bugs and also help with Kiddom onboarding
What we offer
What we offer
  • The opportunity to make a measurable impact in K-12 education
  • Competitive salary and equity in a hyper-growth, mission-driven organization
  • Full health benefits: medical, dental, and vision
  • Flexible vacation policy
  • 401k
  • An inclusive, positive team culture
  • A passionate, collaborative team obsessed with building transformative education technology
  • Meaningful equity
  • Health insurance benefits: medical (various PPO/HMO/HSA plans), dental, vision, disability and life insurance
  • One Medical membership (in participating locations)
  • Fulltime
Read More
Arrow Right

Staff Software Engineer - Backend

As the Staff Software Engineer for our SaaS platform team, you will be crucial i...
Location
Location
Canada , Toronto
Salary
Salary:
189000.00 - 209000.00 CAD / Year
cyngn.com Logo
Cyngn
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of software development experience, with a strong focus on backend systems and distributed architectures
  • Extensive experience in building and scaling cloud-native SaaS platforms, preferably in the IoT or robotics domains
  • Expert-level proficiency in at least one of Python, Go, Java, or C++, with working knowledge of others
  • Deep understanding of cloud technologies and services (AWS, Azure, or GCP)
  • Proven experience with event-driven architectures and message queuing systems (e.g., Kafka, RabbitMQ, Apache Pulsar)
  • Strong background in database design and optimization, including both SQL and NoSQL solutions
  • Proficiency in developing scalable WebSocket-based real-time communication systems
  • Expertise in developing real-time data processing pipelines and analytics systems
  • Proficiency with containerization and orchestration technologies (Docker, Kubernetes)
  • Experience with infrastructure-as-code and CI/CD practices (e.g., Terraform, GitOps)
Job Responsibility
Job Responsibility
  • Architect and lead the development of a sophisticated, cloud-native fleet management system capable of real-time control and monitoring of numerous autonomous vehicles
  • Design and implement scalable, distributed systems that can handle high-volume, real-time data processing and decision-making
  • Develop robust APIs and microservices to support integration with various autonomous vehicle platforms and customer systems
  • Create efficient algorithms for route optimization, task scheduling, and resource allocation across vehicle fleets
  • Implement advanced data analytics and machine learning capabilities to provide predictive maintenance, performance optimization, and business intelligence features
  • Ensure system reliability, security, and compliance with industry standards and regulations
  • Lead a team of skilled engineers, fostering a culture of innovation, code quality, and continuous improvement
  • Collaborate with product managers, UX designers, and customers to translate business requirements into technical solutions
  • Mentor junior developers and contribute to the technical growth of the engineering team
  • Participate in the entire software development lifecycle, from concept and design to testing, deployment, and maintenance
Read More
Arrow Right
Welcome to CrawlJobs.com –
Your Global Job Discovery Platform
At CrawlJobs.com, we simplify finding your next career opportunity by bringing job listings directly to you from all corners of the web. Using cutting-edge AI and web-crawling technologies, we gather and curate job offers from various sources across the globe, ensuring you have access to the most up-to-date job listings in one place.
Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Australia Jobs Canada Jobs Poland Jobs Ireland Jobs Spain Jobs
Company
Blog About Us Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
© 2025 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy