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Software Engineer - Back-end Developer

posted by: spj_bot

Description

Welcome to PXGEO

PXGEO is an innovative marine geophysical service provider combining the strengths of ocean bottom and towed streamer seismic data acquisition techniques to deliver seamless subsurface imaging for a sustainable future.

What's the role?

This role will be part of our Manta Technology team and will be responsible for architecting and implementing the core server-side components that power Digest core applications. This position will be responsible for developing new programs and producing updates or amendments, in accordance with the constraints set in the development plan. This position will collaborate closely with front-end engineers, data scientists, and geophysicists to ensure seamless performance across offshore deployments and field operations. Key responsibilities include:

Job Skills

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Software Engineer - Back-end Developer

posted by: spj_bot

Description

Welcome to PXGEO

PXGEO is an innovative marine geophysical service provider combining the strengths of ocean bottom and towed streamer seismic data acquisition techniques to deliver seamless subsurface imaging for a sustainable future.

What's the role?

This role will be part of our Manta Technology team and will be responsible for architecting and implementing the core server-side components that power Digest core applications. This position will be responsible for developing new programs and producing updates or amendments, in accordance with the constraints set in the development plan. This position will collaborate closely with front-end engineers, data scientists, and geophysicists to ensure seamless performance across offshore deployments and field operations. Key responsibilities include:

Job Skills

View the job post & apply

Senior Blockchain Engineer

posted by: spj_bot

Senior Blockchain Engineer - Wallet Infrastructure & Integrations

Location: Remote - Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred.

Compensation: $160K - $240K

Join a stellar team of leaders and experts in blockchain technology, cryptography, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a Senior Blockchain Engineer to lead the design, development, and scaling of the components that connect our platform to every major blockchain network. This role is both hands-on and strategic, focusing on speed, resilience, and security under high-stakes financial workloads.

You will own the entire lifecycle of blockchain integrations, from low-level data indexing to high-level API design and smart contract development. You will improve our indexing and monitoring infrastructure, ensure secure integrations across diverse networks, and build tools that make our wallet platform faster and easier for partners to adopt.

Key Responsibilities:

Job Skills

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Staff Backend Engineer

posted by: spj_bot

Staff Backend Engineer

Location: London or New York City

Onsite | Full-time

Compensation: competitive

Our client is a high-performance technology development firm responsible for building and operating the infrastructure behind the world’s largest and most active digital asset launchpads. Processing approximately $1B in daily volume, the platform operates at the bleeding edge of crypto scale, requiring systems designed for ultra-low latency, high throughput, and constant high-concurrency load.

The organization is seeking a Lead Backend Engineer to own the most complex technical challenges across the system. This is a high-stakes, high-impact role within an intense, in-person environment. The team is composed of high-agency builders who value speed, immediate impact, and rigorous engineering judgment. This position is ideal for an engineer who thrives under pressure and is motivated by the opportunity to solve ambiguous, cross-cutting problems that others cannot.

Key Responsibilities

Job Skills

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Staff Software Engineer - Execution Team

posted by: spj_bot

Staff Software Engineer - Distributed Ledger Execution

Location: Remote - US

Compensation: $ Competitive

We are a fast-growing software company committed to supporting, developing, and servicing an open source, proof-of-stake platform. This EVM-compatible Distributed Ledger Technology (DLT) is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability. We are seeking a Staff Software Engineer to be a technical leader on our core Execution Team.

You will be responsible for delivering software services, business logic, and APIs within the core Consensus Node—the heart of our DLT. This is a high-impact role requiring deep passion for solving technical challenges involving distributed execution, state management, transaction lifecycles, and economic systems (fees, rewards). You will drive technical direction, optimize performance, and mentor engineers within a highly collaborative, open-source environment.

Key Responsibilities:

Job Skills

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Senior Backend Engineer - Onramp

posted by: spj_bot

Backend Engineer - High-Throughput FinTech/Crypto Infrastructure

Location: New York City (Office)

Compensation: $250K - $300K

We are a high-growth software company contributing to one of the world's largest crypto social networks, moving fast and redefining what is possible in the FinTech and crypto space. We are seeking an elite Backend Engineer to design and scale the complex systems powering seamless fiat-to-crypto flows, real-time risk decisions, and rock-solid financial records for a 24/7 system.

You will own mission-critical systems and services at the core of our platform, working on high-throughput, low-latency distributed systems. This role requires deep technical expertise at the intersection of payments, compliance, risk, and on-chain infrastructure.

Key Responsibilities:

Job Skills

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Principal EVM Engineer - Smart Contracts Team

posted by: spj_bot

Senior/Lead EVM Engineer - Distributed Ledger Optimization

Location: Remote - US

Compensation: Competitive

We are a fast-growing software company dedicated to supporting and evolving a leading open-source, proof-of-stake distributed ledger platform. Our network is EVM-compatible and specifically engineered to meet the demands of enterprise and Web3 applications that require industry-leading speed, security, and sustainability.

We are looking for a Seasoned Java Engineer with deep blockchain protocol experience to join our Smart Contracts Team. In this role, you will be a key contributor to the evolution and optimization of our EVM implementation. You will work on a "plain Java" codebase (no heavy frameworks) where high performance, low latency, and high throughput are the baseline requirements.

Key Responsibilities:

Job Skills

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Senior Fullstack Engineer

posted by: spj_bot

Senior Fullstack Engineer - DeFi Trading & Yield Platform

Location: Remote - NYC or SF based candidates heavily preferred

Compensation: $150K - $175K

We are building the leading trading and yield platform for DeFi, founded by former industry leaders with deep expertise in algorithmic trading. Backed by top-tier institutional investors from both traditional finance and crypto, we are creating cutting-edge, crypto-native technology. We are seeking a Senior Fullstack Engineer excited to work on a complex backend managing billions of dollars in crypto transactions while delivering exceptional user experiences.

You will have the opportunity to build across the entire stack, integrating multiple DeFi protocols and connecting with various blockchains. This role demands full ownership of features, requiring you to balance implementation speed with long-term quality and scalability. You will be a key player in shaping our success by designing and building systems capable of high-throughput execution.

Key Responsibilities:

Job Skills

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Staff React Native Engineer

posted by: spj_bot

Staff React Native Engineer

Location: New York (Office)

On-site | Full-time

Compensation: Competitive

Our client is the development firm responsible for building and operating the full technology stack behind the world’s leading memecoin launchpad. These systems are engineered for low latency and high throughput, operating under constant load where precision is critical. As a React Native Engineer on the mobile team, the successful candidate will play a pivotal role in scaling a high-performance application that brings crypto and SocialFi to a global user base. This role requires working across the stack to craft seamless mobile experiences, shipping code rapidly, and iterating within a high-growth environment.

Key Responsibilities

Job Skills

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Staff Backend Engineer

posted by: spj_bot

Staff Backend Engineer - Crypto Trading Platform

location: Remote - US or Europe (US Preferred)

compensation: Competitive Base Salary + Bonus

We are hiring on behalf of our client, a market-leading company at the forefront of crypto trading technology. Their platform is known as the largest in its category, having facilitated over $22 billion in volume for more than 50,000 daily active users. They deliver seamless on-chain trading experiences with advanced tools like DCA & limit orders, sniping, and automatic wallet copy-trading, setting the standard for speed, innovation, and reliability. Your work will be live in the hands of tens of thousands of users immediately upon completion.

They are seeking a Staff Backend Engineer with proven expertise in designing, building, and owning scalable, high-throughput, and low-latency microservices-based backends in TypeScript. This highly autonomous technical leadership role involves reporting directly to the technical co-founders. You will be expected to thrive on complex challenges and drive the development of new innovative features.

Key Responsibilities:

Job Skills

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