Sr./Staff Backend Engineer - Java Job at Oscilar

New

Sr./Staff Backend Engineer - Java

As a Backend Engineer at Oscilar, you will be responsible for designing, buildin...

Location

Brazil

Salary:

Not provided

Oscilar

Expiration Date

Until further notice

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

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

New

Sr./Staff Backend Engineer - Java/Kafka

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...

Location

Poland

Salary:

Not provided

Oscilar

Expiration Date

Until further notice

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

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

New

Sr./Staff Android Developer

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...

Location

Brazil

Salary:

Not provided

Oscilar

Expiration Date

Until further notice

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

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

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

New

Sr./Staff Android SDK Developer

Shape the future of trust in the age of AI. At Oscilar, we're building the most ...

Location

Salary:

Not provided

Oscilar

Expiration Date

Until further notice

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

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

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

New

Lifecycle Management Specialist Consultant

Are you a detail-oriented professional with a passion for pharmaceutical excelle...

Location

Belgium , Zaventem

Salary:

Not provided

Randstad

Expiration Date

April 27, 2026

Requirements

Experience: Generally requires 4–6 years of relevant work experience
Background: Proven experience in Pharmaceutical operations or manufacturing environments
Subject Matter Expertise: Deep knowledge of primary packaging materials and parenteral production processes
Soft Skills: Strong analytical and project management skills with a meticulous eye for detail
Communication: Fluent in English
Technical Proficiency: Skilled in SAP, Comet software, Minitab, Excel, and PowerPoint

Job Responsibility

Change Control Leadership: Lead and manage all change controls associated with supplier notifications for primary packaging materials, including the preparation of all required deliverables
Technical Specification Review: Critically evaluate supplier specifications to ensure total alignment with own quality standards
Reporting & Analysis: Author comprehensive comparability reports to assess the processability of primary packaging materials
Activity Coordination: Oversee all functional and technical testing activities related to Change Control processes

Fulltime

New

Customer Service Specialist

Location

China , Shanghai

Salary:

120000.00 - 156000.00 CNY / Year

Randstad

Expiration Date

April 25, 2026

Requirements

Prefer a Bachelor's Degree in the field of Business Administration, Communications, or related field of study
Between 3-5 years of experience in customer service in FMCG
Proficient in Microsoft suite of software products
emphasis on Excel
SAP experience preferred – SAP ECC, SAP TM
Excellent written and verbal communication skills in English preferred

Job Responsibility

Work closely with customers across the assigned territories, in close collaboration with management to address any and all service issues dealing with product supply and sales order fulfillment
Receive, organize, and manage data entry of all customer orders to support demand fulfillment in support of company sales objectives
Maintain relationships with customers, monitor their inventory levels and depletions
Receive, organize, and manage data entry of all internal sample orders for execution of company marketing and sampling activities in each assigned territory
Work with internal and external customers to ensure a clear transfer of ownership in sales orders, in compliance with company financial accounting procedures, and for sample orders
Ensure that Company operational standards, policies, procedures, and practices are followed in a timely and consistent manner

Fulltime

New

Registered Nurse Scrub Scout

New Year, New View - Scrub Into 2026 with Adelaide’s Best! Is your 2026 resoluti...

Location

Australia , Adelaide

Salary:

34.00 - 43.00 AUD / Hour

Randstad

Expiration Date

March 05, 2026

Requirements

Current AHPRA registration (Nursing or Midwifery)
3+ years of post-reg experience, with a heavy focus on Scrub Scouting
A proven track record in Neuro (Spinal/Cranium) and Ortho
A team-player attitude and a commitment to exceptional patient outcomes

What we offer

Generous professional development grants and support for postgraduate qualifications
Competitive salary packaging
Exclusive health and wellbeing perks

New

Registered Nurse Anaesthetic

New Year, New Flow: Level Up Your Nursing Career in 2026! We are looking for an ...

Location

Australia , Adelaide

Salary:

35.00 - 43.00 AUD / Hour

Randstad

Expiration Date

March 05, 2026

Requirements

AHPRA Registered (Nurse or Midwife)
2+ years of post-reg experience with a focus on Anaesthetics
Experience in Cardiac, Neuro, Paeds, or Endoscopy

What we offer

Competitive salary packaging
Generous support for further qualifications
Supportive management team
City centre location

Sr./Staff Backend Engineer - Java

Oscilar

Location:
Canada

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 18, 2026

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Sr./Staff Backend Engineer - Java

Oscilar

Location:Canada

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:February 18, 2026

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Location:
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Job Posted:
February 18, 2026