Senior Backend Engineer

Senior Software Engineer – Client Meeting Representative
Overview
We are a US-based software development outsourcing startup founded in 2022. We primarily acquire projects through platforms such as Upwork and LinkedIn, working with clients across the United States and partnering with talented development teams worldwide.
As our business continues to grow, we are looking for an experienced software development professional who can represent our agency in client-facing meetings.
Our development teams typically manage multiple projects simultaneously, and some team members face communication challenges when interacting with native English-speaking clients. Therefore, we are seeking a highly experienced professional with excellent English communication skills and a strong technical background.
This is a client-facing, non-development role that requires the ability to communicate technical concepts, participate in technical discussions, and demonstrate practical software development knowledge when necessary.
Goals and Responsibilities
Attend Initial Client Meetings: Represent our agency during introductory calls, technical discovery meetings, culture-fit discussions, and project requirement meetings to help secure new projects.
Agency Representation: Attend client meetings as an authorized representative of our assigned team member, following the agreed client-facing identity and representation arrangements.
Technical Discussions: Confidently answer technical questions, explain software architecture, discuss development methodologies, and address technical challenges raised by clients.
Live Coding and Technical Assessments: Participate in live coding sessions, technical interviews, coding challenges, and screen-sharing exercises. Demonstrate practical programming skills and solve technical problems in real time.
Ongoing Project Meetings: Attend regular client meetings, provide project updates, discuss milestones, clarify requirements, and maintain strong client relationships.
Project Communication: Coordinate with our internal development teams to communicate client expectations, technical requirements, feedback, and project progress.
Candidate Requirements
English Proficiency: Advanced (C1/C2) or Native-level English proficiency, with excellent spoken communication, pronunciation, and listening comprehension.
Professional Experience: 7+ years of professional software development experience.
Technical Expertise: Strong knowledge of software engineering principles, system architecture, databases, APIs, and modern development technologies.
Live Coding Skills: Ability to solve coding challenges, explain technical decisions, and demonstrate programming skills through screen sharing.
Client Communication: Excellent presentation, negotiation, interpersonal, and problem-solving skills.
Cultural Awareness: Familiarity with US business communication styles and professional client interactions.
Professionalism: Ability to confidently lead meetings, manage technical discussions, and build trust with clients.
Ideal Candidate
We are particularly interested in experienced software engineers who enjoy client interaction, technical discussions, and business development but prefer a position that does not involve day-to-day coding or development responsibilities.
This is an excellent opportunity for senior developers who want to leverage their technical expertise and communication skills in a flexible, client-facing business role.
The ideal candidate combines strong software engineering experience, advanced or native-level English proficiency, and the confidence to represent a software development agency in front of US clients.

Senior Software Engineer – Client Meeting Representative
Overview
We are a US-based software development outsourcing startup founded in 2022. We primarily acquire projects through platforms such as Upwork and LinkedIn, working with clients across the United States and partnering with talented development teams worldwide.
As our business continues to grow, we are looking for an experienced software development professional who can represent our agency in client-facing meetings.
Our development teams typically manage multiple projects simultaneously, and some team members face communication challenges when interacting with native English-speaking clients. Therefore, we are seeking a highly experienced professional with excellent English communication skills and a strong technical background.
This is a client-facing, non-development role that requires the ability to communicate technical concepts, participate in technical discussions, and demonstrate practical software development knowledge when necessary.
Goals and Responsibilities
Attend Initial Client Meetings: Represent our agency during introductory calls, technical discovery meetings, culture-fit discussions, and project requirement meetings to help secure new projects.
Agency Representation: Attend client meetings as an authorized representative of our assigned team member, following the agreed client-facing identity and representation arrangements.
Technical Discussions: Confidently answer technical questions, explain software architecture, discuss development methodologies, and address technical challenges raised by clients.
Live Coding and Technical Assessments: Participate in live coding sessions, technical interviews, coding challenges, and screen-sharing exercises. Demonstrate practical programming skills and solve technical problems in real time.
Ongoing Project Meetings: Attend regular client meetings, provide project updates, discuss milestones, clarify requirements, and maintain strong client relationships.
Project Communication: Coordinate with our internal development teams to communicate client expectations, technical requirements, feedback, and project progress.
Candidate Requirements
English Proficiency: Advanced (C1/C2) or Native-level English proficiency, with excellent spoken communication, pronunciation, and listening comprehension.
Professional Experience: 7+ years of professional software development experience.
Technical Expertise: Strong knowledge of software engineering principles, system architecture, databases, APIs, and modern development technologies.
Live Coding Skills: Ability to solve coding challenges, explain technical decisions, and demonstrate programming skills through screen sharing.
Client Communication: Excellent presentation, negotiation, interpersonal, and problem-solving skills.
Cultural Awareness: Familiarity with US business communication styles and professional client interactions.
Professionalism: Ability to confidently lead meetings, manage technical discussions, and build trust with clients.
Ideal Candidate
We are particularly interested in experienced software engineers who enjoy client interaction, technical discussions, and business development but prefer a position that does not involve day-to-day coding or development responsibilities.
This is an excellent opportunity for senior developers who want to leverage their technical expertise and communication skills in a flexible, client-facing business role.
The ideal candidate combines strong software engineering experience, advanced or native-level English proficiency, and the confidence to represent a software development agency in front of US clients.

Client-Facing Technical Partner - Remote
About
Small, experienced engineering team specializing in AI/ML, cloud, and full-stack development for US clients. 
Role
We are looking for a native/fluent English speaker to represent our engineering team in client meetings, interviews, and project discussions. 
Responsibilities
Join client meetings and interviews.
Communicate requirements, timelines, and technical approaches.
Bridge communication between clients and developers.
Build strong relationships with US-based clients.
 
Requirements
Native/fluent English speaker based in the US, Canada, or Latin America.
Strong verbal communication skills.
Basic understanding of software development, AI/ML, cloud, or web/mobile.
Comfortable with client-facing technical discussions.
 
Offer
30-50$/hr.
Fully remote and flexible schedule.
Full technical support during client meetings.
Direct access to US clients and networking opportunities.
Type: Partnership / Contractor
Location: Remote (US/Canada/Latin America)

I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
​The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
​What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
​Requirements:
​Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
​Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
​Professionalism: We operate with high standards. Communication and efficiency are key.
​How We Work:
​Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
​Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
​Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
​Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
​Let’s build the future, together.
​Sadr B
CEO, Oferli

Our client is seeking a backend engineer to assume full responsibility for core functionalities on their medical imaging platform. In this role, you will not just hand off your code at the pull request stage but will be directly accountable for system accuracy, production stability, and the security of clinical data that impacts patient care directly.

The data science team creates machine learning models; your task is to create the robust, deterministic platform that supports them. Your responsibilities will include designing scalable architectures, resolving concurrency issues, ensuring seamless data migrations without downtime, and ensuring the stability of legacy services as their replacements are developed.

Responsibilities:

Full ownership of the technical roadmap of our Python/FastAPI ecosystem, encompassing API design, background task distribution, and production observability.

Manage and develop our PostgreSQL schema in terms of data integrity and persistence, including migrations, lock mechanisms, query optimization, and multi-tenant data isolation while adhering to HIPAA/PHI compliance.

Design and implement resilient image processing pipelines for handling intensive medical imaging files in asynchronous, event-driven workflows from ingestion and de-identification to model inference and result delivery.

Establish reliable API interfaces with frontend teams and clear model input/output contracts with data scientists to ensure a smooth cross-functional collaboration.

Keep thorough technical records, oversee the transition of legacy systems, and maintain Architecture Decision Records (ADRs).

Requirements:

Minimum of 5 years of software engineering experience with demonstrated production ownership and deep expertise in systems and backend fundamentals.

Proficiency in concurrency and distributed systems with a strong understanding of race conditions, deadlocks, idempotent processing, and messaging failure modes.

Hands-on experience with PostgreSQL internals and message brokers in a production environment.

Strong commitment to typed code, automated testing, CI/CD pipelines, Docker, and modern AI developer tools.

Ability to challenge requirements, set technical standards, and communicate effectively in both English and Chinese.

Nice-to-have Skills:

Familiarity with operating containerized workloads on Google Cloud Platform.

Direct experience with medical imaging workflows, DICOM standard protocols, or healthcare regulatory frameworks.

Knowledge of multi-tenant database patterns or deploying hybrid cloud/on-prem solutions.

Exposure to scientific computing contexts like NumPy, computational geometry, or frontend technologies like React/TypeScript.

Certain AI tools may be utilized in the hiring process for tasks such as application review and assessing candidate materials. These tools assist but do not replace human judgment, with final hiring decisions being made by humans. For more information on data processing, please contact us directly.