Senior/Staff Backend Engineer Job at Helpcare AI (New York, NY)

Senior/Staff Backend Engineer

Our mission is to scale intelligence to serve humanity. We’re training and deplo...

Location

Canada; United States , Toronto; Montreal; Ottawa; New York

Salary:

Not provided

Cohere

Expiration Date

Until further notice

Requirements

Have shipped (lots of) Python in production
You have built and deployed extremely performant client-side or server-side RAG/agentic applications to millions of users
You have strong coding abilities and are comfortable working across the stack. You’re able to read and understand, and even fix issues outside of the main code base
You’ve worked in both large enterprises and startups
You excel in fast-paced environments and can execute while priorities and objectives are a moving target

Job Responsibility

Build and ship features for North, our AI workspace platform
Develop autonomous agents that talk to sensitive enterprise data
Write and ship minimal code that runs in low-resource environments, and has highly stringent deployment mechanisms
As security and privacy are paramount, you will sometimes need to re-invent the wheel, and won’t be able to use the most popular libraries or tooling
Collaborate with researchers to productionize state-of-the-art models and techniques

What we offer

An open and inclusive culture and work environment
Work closely with a team on the cutting edge of AI research
Weekly lunch stipend, in-office lunches & snacks
Full health and dental benefits, including a separate budget to take care of your mental health
100% Parental Leave top-up for up to 6 months
Personal enrichment benefits towards arts and culture, fitness and well-being, quality time, and workspace improvement
Remote-flexible, offices in Toronto, New York, San Francisco, London and Paris, as well as a co-working stipend
6 weeks of vacation (30 working days!)

Fulltime

Senior/Staff Backend Engineer

This isn’t a typical job posting - it’s an invitation to connect with Wrike for ...

Location

Czech Republic , Prague

Salary:

Not provided

Klaxoon

Expiration Date

Until further notice

Requirements

Passionate Backend Engineer
Experience with Java (21), Spring, REST APIs, SQL
Experience with PostgreSQL, Redis, RabbitMQ
Experience with unit/integration testing, Java web stack
Experience with AI tools (Cursor, Zencoder, etc
internal AI portal
internal MCP)

Job Responsibility

Designing, building, and improving product features from the ground up or enhancing existing ones
Tackling complex challenges together and refining solutions as a team
Ensuring high technical quality through code reviews, testing, and task estimation
Embracing fast, iterative development and following best practices
Using AI tools daily to automate tasks and boost productivity
Continuously learning and supporting each other’s growth

What we offer

5 Weeks of paid vacation
Sick Leave Compensation
5 Paid Uncertified Sick Days
2 weeks fully paid w/ medical certificate, additional 4 weeks paid at 80% salary rate
Parental Leave (fully paid): 18 Weeks Maternity / 4 Week Paternity
2 Volunteer Days
Meal Vouchers (CZK 220 per working day)
Annual Prague Travel Card (Lítačka)
Benefit budget with flexible options, including a MultiSport card, Canadian Medical membership, contributions to a pension savings plan and additional choices available through Benefit Plus

Fulltime

Senior/Staff Engineer, Backend (Identity Platform)

You will own and evolve the core authentication infrastructure that secures ever...

Location

Salary:

Not provided

Phantom

Expiration Date

Until further notice

Requirements

7+ Years of Backend Experience: Demonstrated success in building large-scale, high-availability systems in Node.js, TypeScript, Rust, NestJS (or similar frameworks)
Deep expertise in authentication protocols (OAuth2/OIDC, WebAuthn/Passkeys, OTP)
Strong background in key management services (e.g. AWS KMS, Vault) and cryptography
Web3/Crypto Knowledge: Familiarity with on-chain data, wallet integrations, or decentralized application patterns is strongly preferred
Strong System Design & Architecture Skills: Ability to translate product requirements into scalable, maintainable solutions, with a keen eye for performance trade-offs and fault tolerance
Leadership & Communication: Experience mentoring engineers, leading technical initiatives, and collaborating effectively with cross-functional teams

Job Responsibility

Authentication systems: Architect and ship production-grade improvements to Phantom’s Auth stack (e.g. secure enclaves, hardened token flows, threat modeling)
Passkey (WebAuthn) & MFA
Secrets management: Design and build systems using modern secrets management technologies to push security and functionality to the next level
APIs & Integration: Define and maintain stable, versioned auth APIs for downstream teams
Partner with cross-functional stakeholders to ensure seamless rollouts

What we offer

Competitive salary and equity
Comprehensive insurance (medical/dental/vision) — 100% covered
Stipend for your ideal remote set-up
Flexible hours and a supportive remote environment
Unlimited vacation: Take time when you need it (and we really mean it!)
401(k) retirement plan
Monthly wellness benefit
Weekly meal benefit
Global off-sites

Fulltime

Senior/Staff Software Engineer (Backend), Growth

Our Growth Team sits at the heart of Airwallex’s mission, focusing on user acqui...

Location

United States , San Francisco

Salary:

140000.00 - 230000.00 USD / Year

Airwallex

Expiration Date

Until further notice

Requirements

Bachelor degree or above in computer science or engineering related majors
5+ years of experience in modern engineering practices focused on continuous integration and quality engineering
Strong computer science fundamentals, solid understanding of OOP concepts
Experience domain driven design and event driven architectures
Deep working experience with high throughput / low latency / high available distributed systems
Cloud experience with GCP (preferred) or AWS (EC2, RDS, ELB, CloudFront, etc.) with Docker and Kubernetes
Familiarity with observability tooling such as Splunk, Grafana, and Prometheus

Job Responsibility

Design and Build Scalable Systems
Enable Data-Driven Decisions
Collaborate and Innovate
Experiment and Iterate
Promote Security & Compliance

What we offer

medical, dental, and vision insurance
a 401(k) plan
short-term and long-term disability
basic life insurance
well-being benefits
20 paid days of vacation
12 paid days of company holidays

Fulltime

Senior/Staff Java Backend Engineer

Join the Lab Automation Project and help build the core backend services and UIs...

Location

Mexico , Guadalajara

Salary:

Not provided

Zoolatech

Expiration Date

Until further notice

Requirements

7+ years of experience working in backend software development roles
Experience with Java, Spring, and Spring Boot
Experience in a micro service environment
Experience with Kubernetes and Docker
Experience with AWS Data Stores (RDS, Elastic Cache, MQ, S3)
Experience with CI/CD ( Jenkins, ArgoCD, Github actions )
Experience with Agile methodologies and tools ( Jira, Sprints, etc.. )
Mindset of fulfilling the dreams of the Product, Design and the end user.
Communicate conscientiously with your work colleagues

Job Responsibility

Design, Build, and Test Java Spring Boot backend services built with micro architecture principles
Design, Build and Test data stores in AWS used by the backend services ( Postgres, Redis, MQ, Kafka, etc.. ) as well as the data layers which directly interact with the data stores.
Design, Build, and Test inter service communication mechanisms (Message Buses, SDK’s, and APIs)
Create and Modify Backend Services running within a Kubernetes Cluster. Adjust the cluster’s ingress points, namespaces, config maps, and operators as necessary to optimize platform performance, security, and efficiency
Accurately Estimate and Track large projects
Provide constructive feedback in code reviews and incorporate feedback received
Create architecture design documents and clearly present ideas to the team
Create and maintain documentation for backend services including APIs, system architecture, etc.
Operate in the local developer environment, (Docker/Gradle/IDE )
Operate within an Agile environment (Sprints, Jira)

What we offer

Paid Vacation
Holidays Day Off
Sick Days
Bereavement Leave
Sport Compensation
English Classes
Food Vouchers
Training Compensation
Maternity and Paternity Leave
Savings Fund

Senior/Staff Java Backend Engineer

Join the Lab Automation Project and help build the core backend services and UIs...

Location

Salary:

Not provided

Zoolatech

Expiration Date

Until further notice

Requirements

7+ years of experience working in backend software development roles
Experience with Java, Spring, and Spring Boot
Experience in a micro service environment
Experience with Kubernetes and Docker
Experience with AWS Data Stores (RDS, Elastic Cache, MQ, S3)
Experience with CI/CD ( Jenkins, ArgoCD, Github actions )
Experience with Agile methodologies and tools ( Jira, Sprints, etc.. )
Mindset of fulfilling the dreams of the Product, Design and the end user
Communicate conscientiously with your work colleagues

Job Responsibility

Design, Build, and Test Java Spring Boot backend services built with micro architecture principles
Design, Build and Test data stores in AWS used by the backend services ( Postgres, Redis, MQ, Kafka, etc.. ) as well as the data layers which directly interact with the data stores
Design, Build, and Test inter service communication mechanisms (Message Buses, SDK’s, and APIs)
Create and Modify Backend Services running within a Kubernetes Cluster. Adjust the cluster’s ingress points, namespaces, config maps, and operators as necessary to optimize platform performance, security, and efficiency
Accurately Estimate and Track large projects
Provide constructive feedback in code reviews and incorporate feedback received
Create architecture design documents and clearly present ideas to the team
Create and maintain documentation for backend services including APIs, system architecture, etc.
Operate in the local developer environment, (Docker/Gradle/IDE)
Operate within an Agile environment (Sprints, Jira)

What we offer

Paid Vacation
Sick Days
Floating Holidays
Sport/Insurance Compensation
English Classes
Charity
Training Compensation

Senior/Staff Fullstack Engineer

About the role: As a Founding Software Engineer, you will have an organization-l...

Location

India , Hyderabad

Salary:

2000000.00 INR / Year

Helpcare AI

Expiration Date

Until further notice

Requirements

At least five (5) years of experience developing software in an agile team environment
Expertise with React Native /ReactJS/ NextJS and significant experience working with any backend technology e.g. Golang, NodeJS or any Rust framework
Experience across the tech stack, specifically Typescript, React, and React Native
Experience with gRPC, Native iOS and Android is highly desirable
Strong project management skills and a proven track record of taking these types of projects through all stages from inception to deployment
Ability to understand and debug native code as well as performance tune mobile applications
Strong technical and non-technical communication skills with the ability to articulate a vision to audiences of varying technical expertise and collaborate with stakeholders at all levels of the organization
Track record of ownership for team-scale execution and technical excellence

Job Responsibility

Will have an organization-level impact on the product
Be a hands-on expert that takes on the most challenging technical implementations
Mentor the team
Ensure that features are delivered on time and to specification

Fulltime

Senior/Staff Software Engineer, Search & Retrieval Infrastructure

We are hiring a senior/staff software engineer to help design and build core com...

Location

Israel , Tel Aviv

Salary:

Not provided

Pinecone

Expiration Date

Until further notice

Requirements

Systems Expertise: Architectural Depth: You have a proven track record (typically 6+ years) of shipping production-grade backends for large-scale systems
Systems Expertise: Data Engineering Savvy: You’re comfortable building high-throughput indexing pipelines that handle both the messy world of unstructured data and the rigid world of structured schemas
AI & Retrieval: Retrieval Intuition: You understand that search is more than just a keyword match. You have direct experience (or deep theoretical knowledge) in semantic search, vector databases, hybrid retrieval strategies, or with traditional search engines like Elastic or OpenSearch
AI & Retrieval: RAG & Orchestration: You understand the nuances of Retrieval-Augmented Generation (RAG) patterns, from embedding pipelines and hybrid search techniques to how query planning and metadata filtering can make or break an LLM's performance
Technical: Language Fluency: You are an expert in at least one major language like Go, Rust, C++, Java, or Python
Technical: Infrastructure: Familiarity and experience with modern infrastructure tools, such as Kubernetes, cloud-native architectures, and observability frameworks, as well as infrastructure-as-code tools like Terraform or Pulumi
Ownership & Impact: Product Thinking: You don't just build to spec
you build for the user. You can design clean, intuitive APIs that both human developers and autonomous agents will love
Ownership & Impact: Ambiguity Navigator: You’re comfortable in a high-growth environment. You prefer owning a problem over executing a ticket

Job Responsibility

Design and build scalable platform components leveraging advanced retrieval via query planning, semantic and hybrid search, metadata-aware search, and LLM generation
Design and build optimized indexing pipelines for structured and unstructured data
Build backend services for semantic and hybrid retrieval, knowledge graph construction, and retrieval orchestration
Improve retrieval quality through evaluation and observability frameworks
Design APIs for internal and external user and agentic consumers
Optimize latency, throughput and cost across large-scale inference and retrieval workloads
Drive technical direction for reliability and security

Fulltime

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Senior/Staff Backend Engineer

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