Senior Python Backend Software Developer Job at Xelix (London)

Senior Backend Software Engineer

Location

India , Bengaluru

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

6+ years of experience building and developing backend applications
Bachelor's or Master's degree with a preference for Computer Science degree
Experience crafting and implementing highly scalable and performant RESTful micro-services
Proficiency in any modern object-oriented programming language (e.g., Java, Kotlin, Go, Scala, Python, etc.)
Fluency in any one database technology (e.g., RDBMS like Oracle or Postgres and/or NoSQL like DynamoDB or Cassandra)
Demonstrated ability to design and operate systems that deliver high availability and unwavering reliability for our customers
Real passion for collaboration and strong interpersonal and communication skills
Broad knowledge and understanding of SaaS, PaaS, IaaS industry with hands-on experience of public cloud offerings (AWS, GCP, Azure)
Familiarity with cloud architecture patterns and an engineering discipline to produce software with quality

Job Responsibility

Design, develop, and maintain robust backend systems and components focused on proactive and reactive incident management and post-incident management
Be part of an amazing open and collaborative work environment with other experienced engineers, process engineers, architects, and TPMs
Review code with best practices of readability, testing patterns, documentation, reliability, security, and performance considerations in mind
Leverage data to generate actionable insights that drive continuous improvements in backend performance and incident management processes
Mentor and level up the skills of your teammates by sharing your expertise in formal and informal knowledge sharing sessions
Ensure full visibility, error reporting, and monitoring of high performing backend services
Participate in Agile software development including daily stand-ups, sprint planning, team retrospectives, show and tell demo sessions

Fulltime

Senior Backend Software Engineer

We're looking for a Senior Backend Software Engineer to join our team, focused o...

Location

Poland , Gdańsk

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

7+ years experience building and developing backend applications.
Senior-level experience with one or more prominent languages such as Java, Python, Kotlin, Go, or Scala is nice to have.
Understanding of SaaS, PaaS, IaaS industry with hands-on experience with public cloud offerings (e.g., AWS, GCP, Azure).
Fluency in any one database technology (e.g., RDBMS like Oracle or Postgres and/or NoSQL like DynamoDB or Cassandra).
Experience crafting and implementing well-tested, highly scalable and performant micro-services and/or other distributed systems.
Practical knowledge of agile software development methodologies (e.g., XP, scrum).
Knowledge to evaluate trade-offs between correctness, robustness, performance, space and time.
Practice in mentoring other engineers and influencing decision makers throughout the organization.
Considers the customer impact when making technical decisions.

Job Responsibility

Drive complex projects autonomously, from technical design to launch.
Solve complex architecture challenges, apply architectural standards and start using them on new projects.
Lead code reviews and documentation, and take on complex bug fixes, especially on high-risk problems.
Be an example for thorough, meaningful code reviews.
Partner across engineering teams to handle company-wide initiatives spanning multiple projects.
Transfer your depth of knowledge from your current language to excel as a Java developer.
Mentor junior members of the team.

What we offer

Health coverage
Paid volunteer days
Wellness resources

Senior Software Engineer - Backend Cloud Software Developer

Senior backend cloud software developer role working on industry's leading AI/ML...

Location

India , Bangalore

Salary:

Not provided

Hewlett Packard Enterprise

Expiration Date

Until further notice

Requirements

Strong background in developing production software in a cloud environment
Development of multitenant cloud SaaS solution
12+ years overall experience with 4-5 years hands-on experience in above areas
B.Tech/B.E in computer science or related discipline
Golang programming language (must)
Python programming language
RESTful API design and development
Data structures and algorithms
Cloud software technologies (SaaS)

Job Responsibility

Working with various providers of data sources sending telemetry to Mist's Marvis AIOps solution
Developing customer facing APIs used by HPE-Juniper's application developers and customers

What we offer

Health & Wellbeing benefits
Personal & Professional Development programs
Unconditional Inclusion environment

Fulltime

Senior Software Engineer, Backend

As a Senior Software Engineer, Backend specializing in database architecture and...

Location

United States , San Francisco

Salary:

150000.00 - 240000.00 USD / Year

Chef Robotics

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Engineering, or equivalent practical experience
7+ years of professional experience in backend development roles with demonstrated leadership experience
Expert knowledge of relational databases (MySQL, PostgreSQL) including schema design, optimization, and administration
Strong proficiency with Python and JavaScript/TypeScript with advanced software engineering skills
Extensive experience leading projects with at least two web frameworks: Flask, FastAPI, Django, Node.js, or Next.js
Proven experience designing and implementing RESTful and GraphQL APIs at scale
Advanced understanding of containerization (Docker) and orchestration (Kubernetes) technologies
Experience with cloud infrastructure and deployment (AWS, GCP, or Azure) in production environments
Proven experience leading complex backend projects and mentoring junior engineers
Understanding of data requirements for robotics or automation systems

Job Responsibility

Lead the design, implementation, and optimization of database schemas to support robot operations, telemetry, recipe management, and system analytics
Develop robust data migration strategies and version control for database schema evolution
Implement efficient query optimization and indexing strategies to support high-throughput robot operations
Establish data integrity protocols and backup systems to ensure operational continuity across customer deployments
Create scalable data access layers that balance security, performance, and maintainability
Mentor team members on database design patterns and optimization techniques
Lead the development and maintenance of scalable APIs to serve robot control systems, dashboards, and monitoring tools
Design and implement secure authentication and authorization mechanisms across backend services
Develop robust middleware for processing and validating data between robotics subsystems
Create service interfaces that enable efficient communication between robotics components and cloud services

What we offer

medical, dental, and vision insurance
commuter benefits
flexible paid time off (PTO)
catered lunch
401(k) matching
early-stage equity

Fulltime

Senior Software Engineer, Backend

As a Senior full-stack engineer, with a backend focus, you will be at the forefr...

Location

Germany , Berlin

Salary:

Not provided

Cresta

Expiration Date

Until further notice

Requirements

Proven experience as a Backend Engineer with a focus on database design and system architecture
Strong expertise in ClickHouse or similar columnar databases for managing large-scale, real-time analytical queries
Hands-on experience with Elasticsearch for indexing and searching large datasets
Proficient in backend programming languages such as Python, Go
Experience with RESTful API design and development
Solid understanding of distributed systems, microservices architecture, and cloud infrastructure
Experience with performance tuning, data modeling, and query optimization
Strong problem-solving skills and attention to detail
Excellent communication and teamwork abilities

Job Responsibility

Design, implement, and maintain backend services and APIs to support applications
Build and optimize data storage solutions using Postgres, ClickHouse and Elasticsearch to ensure high performance and scalability
Collaborate with cross-functional teams, including frontend engineers, data scientists, and machine learning engineers, to deliver end-to-end solutions
Monitor and troubleshoot performance issues in distributed systems and databases
Write clean, maintainable, and efficient code following best practices for backend development
Participate in code reviews, testing, and continuous integration efforts
Ensure security, scalability, and reliability of backend services
Analyze and improve system architecture, focusing on performance bottlenecks, scaling, and security

What we offer

Paid parental leave to support you and your family
Monthly Health & Wellness allowance
Work from home office stipend to help you succeed in a remote environment
Lunch reimbursement for in-office employees
PTO: 28 days in Germany

Fulltime

Senior Backend Software Engineer

The Coaching team builds Highspot’s personalized, AI-enhanced coaching capabilit...

Location

Canada , Vancouver

Salary:

146000.00 - 178000.00 CAD / Year

Highspot

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science or equivalent practical experience
5+ years of experience in back-end software development building and maintaining large-scale web applications
At least 3 years of experience working with object-oriented programming languages
Ruby and Python preferred
Experience architecting, building, and deploying mid-to-large scale web applications in a distributed environment
Strong understanding of API design, data modeling, and backend scalability
Experience integrating or working with AI/LLM platforms such as OpenAI, Anthropic (Claude), or Azure OpenAI
Familiarity with AI-powered development tools (e.g., Cursor, GitHub Copilot, Cody, etc.) and a demonstrated ability to incorporate them effectively into day-to-day workflows
Deep expertise in web performance, security, and reliability best practices
Proven ability to deconstruct complex technical problems and deliver elegant, maintainable solutions

Job Responsibility

Design, develop, and maintain high-quality, scalable, and user-centric backend systems using modern technologies
Architect and optimize backend infrastructure to power intelligent, AI-driven workflows and Agentic AI integrations
Build and maintain integrations with multiple large language models (LLMs) including ChatGPT, Claude, and other OpenAI and Microsoft models
Collaborate closely with AI/ML engineers to productionize agentic workflows and autonomous reasoning systems
Partner effectively with Product Management and UX Design to translate ideas and research into production-ready, AI-enhanced features
Leverage AI-assisted development tools such as Cursor, GitHub Copilot, and other code generation frameworks to accelerate development and improve code quality
Lead and mentor engineers through complex projects, emphasizing clean architecture, testing, and software craftsmanship
Drive backend infrastructure improvements that enhance reliability, observability, and performance
Collaborate cross-functionally to deliver differentiated customer value through AI and data-driven solutions
Troubleshoot and resolve critical production issues while contributing to internal documentation and best practices

What we offer

Comprehensive medical, dental, vision, disability, and life benefits
Group Retirement Savings Plan (RRSP) and matching employer contributions (DPSP) with immediate vesting
Flexible PTO
Generous Holiday Schedule + 5 Days for Annual Holiday Week
Quarterly Recharge Fridays (paid days off for mental health recharge)
Flexible work schedules
Access to Coaches and Therapists through Modern Health
2 Volunteer days per year
Monthly transportation allowance for employees that work in our Vancouver Hub location
Employees are eligible to receive stock options

Fulltime

Senior Software Developer, Backend Platform

Join us in building the future of finance. Our mission is to democratize finance...

Location

Canada , Toronto

Salary:

145000.00 - 170000.00 CAD / Year

Robinhood

Expiration Date

Until further notice

Requirements

Significant experience building scalable backend systems in Go and/or Python
Deep familiarity with server-side frameworks such as Django or Go-based systems
Strong track record designing or maintaining internal developer platforms or shared infrastructure
Experience mentoring engineers, guiding technical decisions, and contributing to team-wide strategies
Passion for developer productivity, quality engineering practices, and thoughtful abstraction

Job Responsibility

Design and lead high-impact projects to improve frameworks, common libraries, and the backend development lifecycle
Own and evolve core tooling used across the monorepo — including static analysis, code formatting, and project scaffolding
Build delightful developer experiences with enhanced IDE plugins (VSCode, Goland, PyCharm) and interface definition tools like Protobuf
Drive best practices in backend architecture through standardization, automation, and opinionated defaults
Mentor engineers across the org and champion team values like “Start with Why” and “Easy to Make the Right Choice”
Collaborate with cross-functional stakeholders to align on tooling investments, migration strategies, and security improvements

What we offer

bonus opportunities
equity
benefits

Fulltime

Senior Software Engineer, Backend

Affirm is reinventing credit to make it more honest and friendly, giving consume...

Location

Canada

Salary:

150000.00 - 200000.00 CAD / Year

Affirm

Expiration Date

Until further notice

Requirements

4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes
familiar with processing data offline using frameworks like Spark or Ray
knowledge of stream processing architectures and ability to bridge the gap between online and offline systems with hybrid designs
experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design
write high quality code that is easily understood and used by others
proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely
experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders
strong verbal and written communication skills that support effective collaboration with our global engineering team

Job Responsibility

own and deliver quarterly goals for your team, lead engineers on your team through ambiguity to solve open-ended problems, and ensure that everyone is supported throughout delivery
support peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs
proactively identify project, process, technology or business issues, advocate for them, and lead in solving them
support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts
foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks
help develop talent on your team by providing feedback and guidance, and leading by example

What we offer

monthly stipends for health, wellness and tech spending
100% subsidized medical coverage, dental and vision for you and your dependents
equity rewards
flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
competitive vacation and holiday schedules
employee stock purchase plan enabling you to buy shares of Affirm at a discount

Fulltime

Senior Python Backend Software Developer

Xelix

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 14, 2026

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Senior Python Backend Software Developer

Xelix

Location:United Kingdom , London

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:February 14, 2026

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Job Posted:
February 14, 2026