CrawlJobs Logo
Oscilar Logo Oscilar · IT - Software Development

Sr./Staff Backend Engineer - Java

Canada · Job Posted February 18, 2026
Apply Position
Job Link Share

Job Description

As a Backend Engineer at Oscilar, you will be responsible for designing, building, and maintaining the core infrastructure that powers our SaaS platform. You will collaborate closely with cross-functional teams, ensuring the delivery of highly reliable, low latency, and scalable services that meet the needs of our global enterprise clients.

Job Responsibility

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies
  • Collaborate with the product management, frontend, and QA teams to define technical requirements and ensure smooth integration with other components of the platform
  • Optimize and enhance existing services to achieve maximum performance, reliability, and maintainability
  • Identify and resolve bottlenecks in the system, ensuring optimal resource utilization and system stability
  • Implement best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines
  • Proactively monitor the health and performance of backend services, taking necessary actions to mitigate potential issues
  • Provide technical guidance and mentorship to junior team members

Requirements

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
  • 5+ years of experience in backend software development, with a focus on Java and AWS technologies
  • Strong experience in building and operating low latency, high scale services in a distributed environment
  • Proficient in Java programming, with a deep understanding of its ecosystem and related frameworks
  • Knowledge of microservices architecture, containerization technologies (Docker, Kubernetes), and distributed data systems (Kafka, Clickhouse)
  • Familiarity with RESTful API design, and a strong understanding of security best practices
  • Experience with CI/CD tools (Jenkins, Git, Maven, Gradle) and agile development methodologies
  • Excellent problem-solving skills, attention to detail, and a strong ability to work independently or as part of a team
  • Strong communication skills, both written and verbal

What we offer

  • Competitive salary and equity packages, including a 401k
  • Remote-first culture — work from anywhere
  • 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US)
  • Unlimited PTO policy
  • AI First company
  • both Co-Founders are engineers at heart
  • and over 50% of the company is Engineering and Product
  • Family-Friendly environment
  • Regular team events and offsites
  • Unparalleled learning and professional development opportunities
  • Making the internet safer by protecting online transactions
Oscilar - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Sr./Staff Backend Engineer - Java

8 matching positions

Sr./Staff Backend Engineer - Java

As a Backend Engineer at Oscilar, you will be responsible for designing, buildin...
Location
Location
Brazil
Salary
Salary:
Not provided
oscilar.com Logo
Oscilar
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
  • 5+ years of experience in backend software development, with a focus on Java and AWS technologies
  • Strong experience in building and operating low latency, high scale services in a distributed environment
  • Proficient in Java programming, with a deep understanding of its ecosystem and related frameworks
  • Knowledge of microservices architecture, containerization technologies (Docker, Kubernetes), and distributed data systems (Kafka, Clickhouse)
  • Familiarity with RESTful API design, and a strong understanding of security best practices
  • Experience with CI/CD tools (Jenkins, Git, Maven, Gradle) and agile development methodologies
  • Excellent problem-solving skills, attention to detail, and a strong ability to work independently or as part of a team
  • Strong communication skills, both written and verbal.
Job Responsibility
Job Responsibility
  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies
  • Collaborate with the product management, frontend, and QA teams to define technical requirements and ensure smooth integration with other components of the platform
  • Optimize and enhance existing services to achieve maximum performance, reliability, and maintainability
  • Identify and resolve bottlenecks in the system, ensuring optimal resource utilization and system stability
  • Implement best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines
  • Proactively monitor the health and performance of backend services, taking necessary actions to mitigate potential issues
  • Provide technical guidance and mentorship to junior team members.
  • Fulltime
Read More
Arrow Right

Sr./Staff Backend Engineer - Java/Kafka

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...
Location
Location
Poland
Salary
Salary:
Not provided
oscilar.com Logo
Oscilar
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8+ years of experience with Java in large-scale, distributed environments
  • Extensive experience with Apache Kafka, including Kafka Streams, Kafka Connect, partitioning, replication, and consumer group management
  • Strong experience with AWS services (e.g., MSK, EC2, RDS, DynamoDB, S3, Lambda)
  • Solid understanding of distributed system design, messaging patterns, and eventual consistency
  • Proven ability to diagnose and resolve bottlenecks in streaming and database systems
Job Responsibility
Job Responsibility
  • Design, develop, and maintain scalable backend services using Java and AWS technologies
  • Lead the architecture, deployment, and optimization of Apache Kafka to support real-time data streaming across distributed systems
  • Build and manage Kafka topics, brokers, producers, and consumers, ensuring optimal performance and data consistency
  • Implement streaming solutions with Kafka Streams and Kafka Connect, focusing on high availability and low-latency processing
  • Collaborate with product, frontend, and data engineering teams to define technical requirements and deliver reliable, performant services
  • Design and maintain high-performance data storage solutions using Postgres, Redis, ClickHouse, and DynamoDB
  • Optimize database performance through schema design, indexing strategies, and resource partitioning
  • Implement best practices for infrastructure security, performance monitoring, and data integrity
  • Establish and maintain CI/CD pipelines for automated testing, deployment, and monitoring
  • Provide mentorship to junior engineers, conduct code reviews, and promote best practices in software development
  • Fulltime
Read More
Arrow Right

Sr./Staff Android SDK Developer

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...
Location
Location
Salary
Salary:
Not provided
oscilar.com Logo
Oscilar
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong proficiency in Java and Kotlin for Android development
  • Deep understanding of Android SDK, AOSP internals, and the Android application lifecycle
  • Experience with RESTful APIs, JSON, and integrating mobile applications with backend services
  • Familiarity with cloud computing concepts, data warehousing, and SQL
  • Knowledge of basic machine learning concepts such as supervised and unsupervised learning
  • Experience with version control systems, preferably Git
  • Proficiency in using Android Studio IDE, ADB, emulator etc
  • Excellent problem-solving abilities and attention to detail
  • Strong written and verbal communication skills
  • Ability to work effectively in a collaborative team environment
Job Responsibility
Job Responsibility
  • Lead the research, design, prototyping, implementation, and deployment of holistic end-to-end solutions in the Android domain
  • Develop and maintain highly stable, high-performance, and scalable Android client agents that meet the needs of our global enterprise clients
  • Collaborate closely with cross-functional teams, including product management, frontend, and DS, to define technical requirements and ensure smooth integration with other platform components
  • Stay updated on the latest capabilities of Android platforms, cloud technologies, and AI/ML frameworks to enhance our mobile solutions
  • Research and implement new innovations in mobile security as the Android landscape evolves, including popular third-party SDKs and APIs
  • Drive best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines
  • Mentor junior developers and contribute to the overall growth of the mobile engineering team
What we offer
What we offer
  • Competitive salary and equity packages, including a 401k
  • Remote-first culture — work from anywhere
  • 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US)
  • Unlimited PTO policy
  • AI First company
  • both Co-Founders are engineers at heart
  • and over 50% of the company is Engineering and Product
  • Family-Friendly environment
  • Regular team events and offsites
  • Unparalleled learning and professional development opportunities
  • Fulltime
Read More
Arrow Right

Sr./Staff Android Developer

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...
Location
Location
Brazil
Salary
Salary:
Not provided
oscilar.com Logo
Oscilar
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong proficiency in Java and Kotlin for Android development
  • Deep understanding of Android SDK, AOSP internals, and the Android application lifecycle
  • Experience with RESTful APIs, JSON, and integrating mobile applications with backend services
  • Familiarity with cloud computing concepts, data warehousing, and SQL
  • Knowledge of basic machine learning concepts such as supervised and unsupervised learning
  • Experience with version control systems, preferably Git
  • Proficiency in using Android Studio IDE, ADB, emulator etc
  • Excellent problem-solving abilities and attention to detail
  • Strong written and verbal communication skills
  • Ability to work effectively in a collaborative team environment
Job Responsibility
Job Responsibility
  • Lead the research, design, prototyping, implementation, and deployment of holistic end-to-end solutions in the Android domain
  • Develop and maintain highly stable, high-performance, and scalable Android client agents that meet the needs of our global enterprise clients
  • Collaborate closely with cross-functional teams, including product management, frontend, and DS, to define technical requirements and ensure smooth integration with other platform components
  • Stay updated on the latest capabilities of Android platforms, cloud technologies, and AI/ML frameworks to enhance our mobile solutions
  • Research and implement new innovations in mobile security as the Android landscape evolves, including popular third-party SDKs and APIs
  • Drive best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines
  • Mentor junior developers and contribute to the overall growth of the mobile engineering team
What we offer
What we offer
  • Competitive salary and equity packages, including a 401k
  • Remote-first culture — work from anywhere
  • 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US)
  • Unlimited PTO policy
  • AI First company
  • both Co-Founders are engineers at heart
  • and over 50% of the company is Engineering and Product
  • Family-Friendly environment
  • Regular team events and offsites
  • Unparalleled learning and professional development opportunities
  • Fulltime
Read More
Arrow Right

Hgv Class 1 - Artic

JRL Plant & Logistics are looking for an experienced HGV Class 1 driver for a pe...
Location
Location
United Kingdom , Biggleswade
Salary
Salary:
17.00 - 18.50 GBP / Hour
jrlgroup.co.uk Logo
JRL Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • HGV Class 1 licence
  • Experience of driving in the UK
  • Full CPC and Digi-tacho card
  • Good understanding of driver's hours and working time
  • Ability to complete paperwork
  • Experience of delivering construction equipment / materials preferred
Job Responsibility
Job Responsibility
  • Driving HGV artic
  • Some nights out / tramping will be required
  • Must be able to follow current legislation EU drivers hours rules, Working time directive for mobile workers, Road Transport directive
  • Must be able to communicate in a courteous and helpful manner at all times
  • Must understand the various types of ticket and aggregate types
What we offer
What we offer
  • performance related bonus after 3 months
  • £22.50 Nights Out
  • 10 hour shifts
  • Full Uniform Provided
  • 28 days holiday (Pro Rata)
  • Fulltime
Read More
Arrow Right

Pharmacy Technician

At CVS Health, we are focused on transforming health care for our customers and ...
Location
Location
United States , Hinckley
Salary
Salary:
17.00 USD / Hour
https://www.cvshealth.com/ Logo
CVS Health
Expiration Date
August 10, 2026
Flip Icon
Requirements
Requirements
  • Must comply with any state board of pharmacy requirements or laws governing the practice of pharmacy, which includes but is not limited to, age, education, and licensure/certification
  • If the state board of pharmacy does not address or mandate a minimum age requirement, must be at least 16 years of age
  • If the state board of pharmacy does not address or mandate a minimum educational requirement, must have a high school diploma or equivalent, or be actively enrolled in high school or high school equivalency program
  • State-level licensure and national certification requirements vary by state
  • Regular and predictable attendance, including nights and weekends
  • Ability to complete required training within designated timeframe
  • Attention and Focus: Ability to concentrate on a task over a period of time
  • Ability to pivot quickly from one task to another
  • Ability to confirm prescription information and label accuracy
  • Customer Service and Team Orientation
Job Responsibility
Job Responsibility
  • Support the pharmacy team in delivering operational and service excellence
  • Assist patients and customers to deliver an exceptional experience
  • Ensure that pharmacy operations run smoothly, prescriptions are filled promptly, safely, and accurately
  • Provide caring service that exceeds patient expectations
  • Operate as part of the pharmacy team through consistent application of SOPs, best practices, and effective communication
  • Complete a rigorous company training program
  • Satisfy all registration, licensing, and certification requirements
  • Follow pharmacy workflow procedures at each workstation
  • Contribute to positive patient experiences by showing empathy and genuine care
  • Complete basic inventory activities
What we offer
What we offer
  • Dental
  • Vision
  • Wellness resources
  • Employee discounts
  • Access to certain voluntary benefits
  • Other programs
  • Parttime
Read More
Arrow Right

Automotive Detailer - Car Washer

Enterprise Mobility is seeking a responsible, dedicated person to join our team ...
Location
Location
United States , Wake Forest
Salary
Salary:
14.50 USD / Hour
enterprisemobility.com Logo
Enterprise Holdings
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Must have a valid driver's license with no more than 2 moving violations and/or at-fault accidents on driving record in the past 3 years
  • No drug or alcohol related conviction on driving record in the past 5 years
  • Must be authorized to work in the United States and not require work authorization sponsorship by our company for this position now or in the future.
  • Must be at least 18 years old
Job Responsibility
Job Responsibility
  • Clean, sanitize, vacuum, and prepare vehicle interior according to industry-standard protocols
  • Wash, clean and dry the vehicle's exterior - this might include cars of different sizes, as well as vans and trucks.
  • Check fuel level and warning lights: inspect windshield for damage
  • factory reset/restore vehicle setting to clear prior customer data
  • check for customer items and place anything of value in Lost & Found
  • verify that registration is present, current and matches the license plate.
  • Check fluid levels and add as needed
  • check tire condition, pressure and tread depth
  • inspect vehicle exterior for damage
  • Fuel and stage vehicle
What we offer
What we offer
  • Paid time off
  • Employee discount
  • 401k retirement plan
  • Training and development
  • Parttime
Read More
Arrow Right

Night Social Care Worker

We have set cookies to enhance your experience, but you have the option to disab...
Location
Location
United Kingdom , Salisbury
Salary
Salary:
12.80 - 12.90 GBP / Hour
choicecaregroup.com Logo
Choice Care Group
Expiration Date
July 16, 2026
Flip Icon
Requirements
Requirements
  • Being patient, reliable, flexible, a team player and a good communicator
Job Responsibility
Job Responsibility
  • Providing personal care including bathing, toileting, dressing and help with feeding
  • Medication administration
  • Assisting and getting involved in residents' daily activities, hobbies or outings
  • Following care plan guidance alongside Company policies and procedures
  • Developing an open, honest, and considerate working relationship with residents
  • Maintaining written daily records
  • Attending and completing training as required
What we offer
What we offer
  • Learning Academy
  • Holiday entitlement starting from 28 days inclusive of Bank Holidays
  • Sick pay entitlement
  • Employee Assistance Programme
  • Refer a friend scheme
  • Choiceversary
  • Christmas bonus
  • Life insurance
  • Annual staff awards
  • Complex in-house training
  • Parttime
Read More
Arrow Right