Senior Back End Developer Jobs

New

Senior Back End Engineer

This is a full-cycle property management platform designed for vacation rental b...

Location

Ukraine

Salary:

Not provided

StartupSoft

Expiration Date

Until further notice

Requirements

7+ years of Java 11 or newer
3+ years working with web services
Solid SQL / relational database experience
DevOps using Docker and Kubernetes
Passionate about solving world-changing problems in the vacation rental industry
Enjoy being part of a dynamic, fast-growing startup
Take ownership of your work
Appreciate process and communication

Job Responsibility

Work with a great team of senior developers to improve the Property Management Platform
Take ownership of a few key components of the system
Participate in agile ceremonies
Build for scale, stability and performance

What we offer

Global collaboration opportunities
Core team membership
Equity and ownership potential
Premier workspaces
Competitive compensation package
Cutting-edge technology environment
Impactful project contributions
Collaborative company culture

Fulltime

New

Back-End Senior Developer

We are looking for a highly talented and motivated senior engineer to join our R...

Location

United States , Scottsdale, Arizona

Salary:

Not provided

Sky Republic

Expiration Date

Until further notice

Requirements

5+ years’ experience in back-end software development
Desire and ability to rapidly learn new technologies, put them in practice with tough deadlines, and work through challenging problems
Proficient with agile (Scrum/Kanban/XP) software development methodology and continuous delivery techniques and tools (Jenkins, Git, Jira etc.)
Familiar with cloud service development ecosystem (Amazon AWS, Google Cloud Platform, Microsoft Azure)
Practical development experience with some of the following technologies: Concurrent and strongly typed programming language such as Golang (preferred), C++, Java
REST API and JSON schemas
Linux container technologies (Docker, Kubernetes, etc.)
SQL databases (PostgreSQL, MySQL, Oracle)
Information Security concept and cryptography theory
Middleware software technologies (Apache Service Mix, IBM WebSphere, Mulesoft, WSO2 etc.)

Job Responsibility

Contribute to a highly creative and experienced team in an agile and collaborative environment
Participate in all phases of development including design, coding, deployment, testing, documentation and maintenance of Sky Republic solutions
Apply software development best practices such as unit testing, code review, test automation and continuous delivery to produce high quality software
Work with various stakeholders and customers to develop the Sky Republic offering and ensure its adoption

What we offer

Attractive compensation (salary + bonus + equity)
Medical, Dental, Vision, 401K
Flexible working hours

Fulltime

New

Senior Front End Developer

As a Senior Front-End Developer, you will be at the forefront of our web develop...

Location

United States , Boston

Salary:

Not provided

Pixels 360

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science, Engineering, or a related field
5 years of experience in front-end development with proficiency in HTML5, CSS3, JavaScript, and related frameworks (e.g., React, Angular, or Vue)
Strong understanding of responsive design principles and cross-browser compatibility
Proven track record of delivering visually appealing and highly functional user interfaces
Excellent problem-solving skills and attention to detail

Job Responsibility

Front-End Development: Design and implement high-quality, responsive, and visually appealing user interfaces using modern front-end technologies such as HTML5, CSS3, and JavaScript
Collaboration: Work closely with UX/UI designers, back-end developers, and other stakeholders to ensure seamless integration of front-end and back-end components
Code Quality: Conduct code reviews to ensure best practices, maintain code quality, and promote a culture of continuous improvement
Performance Optimization: Identify and implement strategies for optimizing the performance of web applications, ensuring a smooth and efficient user experience
User Experience: Contribute to the user experience (UX) design process, providing input on usability and interaction design
Cross-Browser Compatibility: Ensure that web applications are compatible across various browsers and devices
Mentorship: Provide guidance and mentorship to junior front-end developers, fostering a collaborative and learning-oriented team culture

New

Senior Full-Stack Developer (Back-End Focus)

We’re looking for a talented and driven Full-Stack Developer to join our dynamic...

Location

Salary:

Not provided

gamdom

Expiration Date

Until further notice

Requirements

Proven experience as a Full-Stack Developer with a backend focus
Strong expertise in: React.js for scalable UI development
Node.js & Express for backend services
PostgreSQL for relational database design and management
MUI for consistent UI/UX design
WebSockets (socket.io) for real-time communication
Strong problem-solving and analytical skills
Ability to work in a fast-paced, collaborative environment
Excellent communication skills (verbal & written)
Adaptability and eagerness to learn new technologies

Job Responsibility

Frontend Development: Build and maintain user interfaces with React.js and MUI for responsive, consistent design
Backend Logic: Develop robust server-side functionality with Node.js and Express
Database Management: Design and optimize schemas and queries using PostgreSQL
Real-Time Features: Implement live updates and streaming with WebSockets (socket.io)
Collaboration: Work closely with product managers, designers, and other engineers to deliver high-quality features
Quality & Performance: Troubleshoot issues, write unit/integration tests, and optimize performance for scalability
Continuous Learning: Stay up-to-date with modern tools, frameworks, and best practices

What we offer

Fully remote - work from anywhere in the world
Flexible schedule
30 days of paid time off
Equipment allowance

Fulltime

New

Senior Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...

Location

Salary:

Not provided

KOR Financial

Expiration Date

Until further notice

Requirements

A minimum of 8+ years of experience as a Back End Engineer
Experience with Java and Spring Boot Framework
Experience with building and running applications on public cloud vendors like AWS
Working experience Kafka, DataBricks and Streaming data solutions
Experience profiling, debugging, and performance tuning complex distributed systems
A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
Knowledge of OOP principles and modern development practices

Job Responsibility

Designing and implementing the streaming data platform engine and SDK
Implementing new features for our range of web and streaming applications and data reporting capabilities
Be an active voice in the platform's build-out in regards to the technical choices and implementations
Working closely with the broader team to embrace new challenges and adapt requirements as we continue to grow and adjust priorities
Paired programming with a growing team of Back-end, Data, and Front-end Engineers

What we offer

Culture of trust, empowerment, and constructive feedback
Competitive salary, great IT equipment, and expense allowance
Flexible working times
A span of control that matches your ambitions and skills
Commitment to a genuine, balanced relationship

New

Senior Front-End Vue Developer

Corporate Tools is seeking a highly skilled Senior Front-End Vue Developer with ...

Location

United States

Salary:

150000.00 USD / Year

Corporate Tools

Expiration Date

Until further notice

Requirements

5+ years of Front End development experience with a strong focus on Vue.js
Deep knowledge of Vue.js
practical experience with Vue 3, Vue Router, Vuex
Experience integrating RESTful APIs with Vue.js applications
Proficiency with HTML5, CSS3, and preprocessors like SASS/SCSS
Familiarity with at least one testing framework like Jest, Mocha, or Cypress
previous experience in writing tests for Vue.js applications
Experience with build tools like Webpack, Vite, and task runners like npm/yarn
Proficiency with revision control systems, particularly Git
Experience in responsive design and development

Job Responsibility

Build and maintain complex Vue.js applications with a focus on performance, scalability, and maintainability
Collaborate with cross-functional teams of UX/UI designers, product managers, and back end developers to deliver seamless user experiences
Assist with an ongoing process of converting Vue 2 apps to Vue 3
Integrate RESTful APIs with Vue.js applications for smooth data flow between the front-end and the back-end
Implement robust testing strategies, including unit, integration, and end-to-end tests
Contribute to further development of a reusable component library
Ensure consistent functionality in all major browsers and devices
Support junior and mid-level developers, promoting a culture that fosters knowledge-sharing and continuous improvement
Participate in code reviews and provide constructive feedback to peers
Stay current with the newest trends and developments in Vue.js, stay up-to-date with the latest tools, and follow best practices while providing valuable insights to the team

What we offer

100% employer-paid medical, dental and vision for employees
Annual review with raise option
22 days Paid Time Off accrued annually, and 4 holidays
After 3 years, PTO increases to 29 days
Employees transition to flexible time off after 5 years with the company—not accrued, not capped, take time off when you want
Paid Parental Leave
Up to 6% company matching 401(k) with no vesting period
Quarterly allowance
Open concept office with friendly coworkers
Creative environment where you can make a difference

Fulltime

New

Senior Back End Engineer - Catalog

Within the Core Product department, the Industry team builds a strong relationsh...

Location

France , Paris

Salary:

Not provided

Deezer

Expiration Date

Until further notice

Requirements

A solid professional experience with PHP development
Experience with large volumes of data and scalability in mind
Strong knowledge of PHP and best practices (SOLID, DDD, PSRs, unit tests, behat) and MySQL
Ability to work autonomously on medium to large scale tasks
Good experience in engineering best practices (code versioning, tests, reviews ..)
Comfortable with kubernetes apps and docker environments
Good written and spoken English

Job Responsibility

Design architecture for new types of content
Develop APIs to serve our data internally
Develop, maintain and monitor ingestion scripts for all kinds of content
Develop tools for data enrichment
Develop a back office for our internal stakeholders
Deploy and monitor our apps, their performances, uptime and quality
Be a technical support for the supply chain team
Participate in the ideation process with our product managers
Maintain the quality of the code base
Contribute to the Community of Practice to improve Deezer backend stack

What we offer

A Deezer premium family account for free
Access to gym classes
Join over 70 Deezer Communities
Deezer parties several times a year and drinks every thursday
Mental health and well-being support from Moka.Care
Allowance for sports, travelling and culture
Meal vouchers
Great offices always located in dynamic and attractive districts
Hybrid remote work policy
English and French courses for all

Fulltime

Senior Software Engineer (Back End)

Archer is an aerospace company based in San Jose, California building an all-ele...

Location

United States , San Jose

Salary:

134400.00 - 168000.00 USD / Year

Archer Aviation

Expiration Date

Until further notice

Requirements

Small but mighty, 0 to 1 builder mentality
BS/MS/PhD in Computer Science or a related technical field
7+ years of backend software engineering experience, with a proven track record of delivering scalable backend systems
Expert-level proficiency in Python for backend application development
Strong experience with AWS, including services such as Lambda, API Gateway, S3, DynamoDB, ECS/Fargate, etc.
Proficiency with infrastructure-as-code tools such as Terraform or AWS CDK
Deep understanding of RESTful API design, microservices architecture, and distributed systems
Experience with performance tuning, system monitoring, and observability tools
Excellent debugging, analytical, and problem-solving skills
Strong communication and collaboration skills across technical and non-technical stakeholders

Job Responsibility

Design, develop, and maintain scalable backend systems and APIs to support Archer’s ride-sharing and airline operational platforms
Build cloud-native applications and services using Python and AWS technologies
Lead architectural design and system integrations, ensuring systems are modular, efficient, and secure
Develop infrastructure-as-code using Terraform or AWS CDK to provision and manage backend environments
Collaborate with stakeholders to define technical requirements and translate them into robust implementations
Own the full development lifecycle—from design and development to deployment, monitoring, and maintenance
Conduct code reviews, enforce engineering best practices, and mentor fellow engineers
Monitor system performance and reliability, and respond to production issues with effective debugging and root cause analysis

Fulltime

Senior Back End Developer

Pixels 360

Location:
United States, Boston

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 11, 2025

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Senior Back End Developer

Pixels 360

Location:United States, Boston

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:December 11, 2025

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Location:
United States, Boston

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
December 11, 2025