Principal Backend Engineer Job at Trading212

Principal/ Sr Principal Backend Engineer

Endor Labs is on a mission to enhance developer productivity and accelerate open...

Location

India , Bengaluru

Salary:

Not provided

Endor Labs

Expiration Date

Until further notice

Requirements

Bachelor's degree in engineering with at least 18+ years of experience building scalable backends for product/SaaS companies, with a strong track record of leading and delivering complex technical projects
Proficiency in Golang is strongly preferred
experience with other modern backend languages, microservices/distributed architecture, and frameworks is a plus
Practical experience in designing APIs with one or more frameworks (gRPC [preferred], ReST, GraphQL, Thrift, etc.)
Excellent problem-solving and debugging skills, and effective communication and leadership abilities are a must
Scalable Distributed System Experience - understand micro-services and domain-driven design, load balancing, horizontal/vertical scaling, and stateless architectures
Architecture - knowledge of data structures and a keen eye for building architectures that scale and extend easily for longevity
Ability to discuss tradeoffs between architecture’s choice to influence groups to move in the right direction
Able to enjoy working in a fast-moving environment with evolving requirements
Ability to solve problems creatively and independently when in uncharted or unfamiliar territory

Job Responsibility

Play a pivotal role in architecting and building the core backend infrastructure for our SaaS products
Lead and contribute to large-scale technical projects, ensuring the scalability, reliability, and performance of our systems
Design, architect, and build features end-to-end while working closely with Product Management, and our distributed Engineering team
Play a significant role in driving innovation, making critical architectural decisions, and leading the implementation of cutting-edge technologies
Mentor and coach team members by sharing your expertise, and promoting best practices within the team to foster a culture of continuous learning and growth

Principal Backend Engineer, Forward Deployed

As a Principal Forward Deployed Engineer (FDE) at Invisible, you'll lead high-im...

Location

United States , Austin; New York; San Francisco Bay Area; Washington DC–Baltimore

Salary:

225000.00 - 370000.00 USD / Year

Invisible Technologies

Expiration Date

Until further notice

Requirements

12+ years of software engineering experience, including significant time spent building data, ML, or backend systems
Deep proficiency in Python with hands-on experience using Hugging Face, LangChain, OpenAI, Pinecone, and related ecosystems
Skilled in full-stack and API-based deployment patterns, including Docker, FastAPI, Kubernetes, and cloud environments (GCP, AWS)
Experienced with workflow orchestration libraries, pub/sub systems (Kafka), and schema governance
Expertise in data governance and operations, including Unity Catalog and policy management, cluster/job orchestration, data contracts and quality enforcement, Delta/ETL pipelines, and replay processes
Strong product and system design instincts — you understand business needs and how to translate them into technical architecture
Experience building usable systems from messy data and ambiguous requirements
Excellent communication and client-facing skills
you’ve led conversations with technical and non-technical stakeholders alike
Proven experience owning projects from scoping through deployment in ambiguous, high-stakes environments

Job Responsibility

Partner with delivery and executive stakeholders to scope, design, and lead implementation of AI-driven solutions
Identify transformational opportunities in messy, ambiguous workflows and turn them into repeatable systems
Lead architecture design and trade-off discussions across performance, scalability, cost, and reliability
Own projects from first discovery call through full deployment — including client-facing delivery, internal coordination, and post-launch iteration
Build shared infrastructure, reusable components, and internal playbooks to level-up the team
Coach and mentor mid-level engineers and help shape the culture of forward-deployed AI engineering at Invisible

What we offer

bonus
equity

Fulltime

Senior Principal Backend Engineer

As an Observability Architect for the Platform Engineering team, you will collab...

Location

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

Previous experience in building and managing large scale telemetry systems, OTEL, TSDB
Previous experience building large scale data ingestion pipelines
Software development in Java, Python
Serious analytical skills across different levels of the stack: Network, .Net/Java, Operating System

Job Responsibility

Regularly tackle the largest and most complex problems on the team, from technical design to Solution
Deliver solutions that are used by other teams and products
Determine plans-of-attack on large projects
Routinely tackle complex architecture challenges and apply architectural standards and start using them on new projects
Lead code reviews and documentation, as well as take on complex bug fixes, especially on high-risk problems
Set the standard for thorough, meaningful code reviews
Partner across Engineering teams to take on company-wide initiatives spanning multiple projects
Transfer your depth of knowledge from your current language to excel as a Software Engineer
Mentor more junior members of the team

What we offer

Health and wellbeing resources
Paid volunteer days

Principal Backend Software Engineer

Apply for the Principal Backend Software Engineer role at Atlassian and give you...

Location

Poland , Gdańsk

Salary:

324900.00 - 433200.00 PLN / Year

Atlassian

Expiration Date

Until further notice

Requirements

10+ years of experience in software development
Familiarity with .NET/C# is preferred
Deep architectural understanding of web application
Experience with data structures, in particular, how they are implemented and how to apply them
Passion for collaborating, solving hard problems, and asking questions
Drive for growth, both as a developer and teammate

Job Responsibility

Guide projects independently, from technical design to launch
Apply architectural standards and start using them on new projects
Contribute to code reviews and documentation and take on complex bug fixes
Begin writing useful technical documentation
Mentor more junior members
Report directly to the Engineering Manager

What we offer

health coverage
paid volunteer days
wellness resources

Fulltime

Principal Backend Software Engineer

As an Engineer well into your career, we know you're an expert at what you do an...

Location

India , Bengaluru

Salary:

Not provided

Atlassian

Expiration Date

Until further notice

Requirements

Bachelors, Masters, or PhD in Computer science in a related technical field or similar experience
10+ years of experience in software development and architecture
Expert-level experience with one or more prominent languages such as Java, C# or C/C++ is crucial
An expert in at least one technical topic/domain
Passion for collaborating with and mentoring junior members of the team
A real appetite for helping others learn and grow
Considers the customer impact when making technical decisions

Job Responsibility

Regularly tackle the largest and most complex problems on the team, from technical design to launch
Deliver solutions that are used by other teams and products
Determine plans-of-attack on large projects
Routinely tackle complex architecture challenges and apply architectural standards and start using them on new projects
Lead code reviews & documentation as well as take on complex bug fixes, especially on high-risk problems
Set the standard for thorough, meaningful code reviews
Partner across engineering teams to take on company-wide initiatives spanning multiple projects
Transfer your depth of knowledge from your current language to excel as a Software Engineer
Mentor more junior members

What we offer

health coverage
paid volunteer days
wellness resources

Principal Software Engineer

The Principal Software Engineer role involves tackling complex problems, deliver...

Location

United States , Mountain View; San Francisco

Salary:

170800.00 - 274300.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

Expertise in multiple backend technologies
Ability to mentor junior members
Experience in tackling complex architecture challenges
Ability to lead code reviews and documentation
Experience in delivering solutions used by other teams and products

Job Responsibility

Tackle the largest and most complex problems on the team
Deliver solutions that are used by other teams and products
Determine plans-of-attack on large projects
Tackle complex architecture challenges and apply architectural standards
Lead code reviews & documentation
Take on complex bug fixes
Set the standard for thorough, meaningful code reviews
Partner across engineering teams to take on company-wide initiatives
Transfer depth of knowledge from current language to excel as a Software Engineer
Mentor more junior members

What we offer

Health coverage
Paid volunteer days
Wellness resources

Fulltime

Principal Software Engineer

As a Principal Software engineer you will work on complex data pipelines dealing...

Location

Salary:

Not provided

Balbix

Expiration Date

Until further notice

Requirements

MS/BS 7+ years in Computer Science or a related field
Expert programming experience with Python, Java, or Scala
Good working knowledge of SQL databases such as Postgres and NoSQL databases such as MongoDB, Cassandra, Redis
Experience with search engine database such as ElasticSearch is preferred
Time-series databases such as InfluxDB, Druid, Prometheus
Strong computer science fundamentals: data structures, algorithms, and distributed systems

Job Responsibility

Design and implement the features and own the modules for ingesting, storing and manipulating large data sets for a variety of cybersecurity use-cases
Write code to provide backend support for data-driven UI widgets, web dashboards, workflows, search and API connectors
Design and implement web services, rest APIs, and microservices
Build production quality solutions that balance complexity and meet acceptance criteria of functional requirements
Work with multiple-interfacing teams, including ML, UI, backend and data engineering

Fulltime

Principal Software Engineer

About LogRocket: Founded in 2016, LogRocket's goal is to make every experience o...

Location

United States , Boston or NYC

Salary:

225000.00 - 260000.00 USD / Year

LogRocket

Expiration Date

Until further notice

Requirements

7+ years of experience in a full stack or backend development role, preferably with a SaaS company
Experience with state of the art cloud technologies, including architectural principles, specific tools of the trade, and their strengths and weaknesses
Hands-on experience building and redesigning highly available distributed systems
Familiarity with modern Javascript-based applications and frameworks
Experience in development environments with demanding scalability or availability requirements
A strong collaborator who is transparent about progress on tasks, seeks feedback early and often, works effectively with the team to deliver on engineering estimates
Acts as a mentor to junior engineers and provides coaching to upskill other team members

Job Responsibility

Design a system to automatically detect the most common user paths across millions of events
Implement a search backend that allows users to search in real time across billions of log entries
Build a machine learning pipeline that automatically detects bugs in our users' apps
Automate database scaling to improve operating cost while maintaining the ability to respond to traffic spikes
Build a system that automatically recommends integrations for customers based on their toolset

What we offer

Catered lunch and an impressive array of your favorite snacks (healthy AND non-healthy!)
Unlimited vacation policy
Health, Dental, Vision benefits, 401k, commuter benefits
Generous stock options
Regular team outings and activities (from boat rides to paintball, we’ll try anything!)

Fulltime

Principal Backend Engineer

Trading212

Location:

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 21, 2026

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Job Posted:
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