Junior Backend Engineer Job at Bolt (Warsaw)

Junior Backend Software Engineer

We're looking for a Backend Software Engineer to join our team who is passionate...

Location

Poland , Gdańsk

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

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

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

Health coverage
Paid volunteer days
Wellness resources

Fulltime

Junior Backend Engineer

We are looking for a Junior Software Developer who can help us on our journey. C...

Location

Poland , Warszawa

Salary:

Not provided

Circle K

Expiration Date

Until further notice

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

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

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

Fulltime

Backend Engineer

A backend engineer at Hebbia blends expertise in systems, application layer soft...

Location

United States , New York City; San Francisco

Salary:

160000.00 - 300000.00 USD / Year

Hebbia

Expiration Date

Until further notice

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

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

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

Senior Software Engineer (Backend)

Tekmetric is looking for a Senior Software Engineer (Backend) to take part in th...

Location

Salary:

Not provided

Tekmetric

Expiration Date

Until further notice

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

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

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

Senior Software Engineer - Backend

We build simple yet innovative consumer products and developer APIs that shape h...

Location

United States , San Francisco

Salary:

180000.00 - 270000.00 USD / Year

Plaid

Expiration Date

Until further notice

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

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

medical
dental
vision
401(k)

Fulltime

Senior Software Engineer - Backend

We build simple yet innovative consumer products and developer APIs that shape h...

Location

United States , New York

Salary:

180000.00 - 270000.00 USD / Year

Plaid

Expiration Date

Until further notice

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

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

medical
dental
vision
401(k)

Fulltime

Staff Software Engineer, Backend

The Staff Engineer will work closely with AI/ML engineers, product managers, app...

Location

United States , NYC

Salary:

160000.00 - 190000.00 USD / Year

Conductor

Expiration Date

Until further notice

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

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

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

Senior Software Engineer, Backend

Kiddom is a groundbreaking educational platform that promotes student equity and...

Location

United States , San Francisco

Salary:

160000.00 - 220000.00 USD / Year

Kiddom

Expiration Date

Until further notice

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

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

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

Junior Backend Engineer

Bolt

Location:
Poland , Warsaw

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
April 12, 2026

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Junior Backend Engineer

Bolt

Location:Poland , Warsaw

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:April 12, 2026

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Location:
Poland , Warsaw

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
April 12, 2026