Backend Developer

~W2 ONLY MUST BE WILLING TO WORK PST HOURS~

Strong Java experience with Kotlin and Scala experience (all 3 are needed for consideration for this role)

Job Title: Backend Developer - Financial experience

Client Location: Remote - PST hours required

Starting: 10/13/2025

Pay Comments: $64-$67 per hour

Minimum Pay (per hour): 64.00

Maximum Pay (per hour): 67.00

Firm, non-negotiable: No

Hours: Full-time

Duration: 9 months with possible extension

Job Description:

This is primarily a backend development / coding related role, with 75% of time to be dedicated in this area.

For this role Candidates must have:

• Strong Java experience with Kotlin and Scala experience (all 3 are needed for consideration for this role)
• Candidates who have worked for Financial organizations or produced work for Financial organizations will have preference, others who have worked within highly regulated industries (Insurance / Healthcare) will be considered.

Other key skills that will set a candidate apart from others:

• ACH transaction experience / NACHA compliance experience is an added advantage for consideration for this role

Role description/Summary

Our established Financial Client is seeking a strong candidate for a Backend Developer/Software Engineer who will play a key role in transforming a client’s product architecture.

• The primary purpose of this role is to design, build, and maintain backend services that power our financial transaction processing systems, with a focus on ACH processing and NACHA compliance.
• Will be responsible for developing secure, scalable, and efficient services using Java/Kotlin/Spring in a micro-service-based architecture running on Kubernetes.

Success in this role will be measured by:

• Accuracy and timeliness of ACH transaction processing.
• System stability, scalability, and uptime.
• Compliance with NACHA, FedACH, and internal policies.
• Reduction in transaction discrepancies and resolution turnaround time.

Key/Principal Responsibilities:

• Process incoming and outgoing ACH transactions and files in accordance with NACHA rules and FedACH requirements.
• Investigate and resolve ACH discrepancies, errors, and exceptions.
• Design, develop, test, and maintain backend services and APIs in a microservices environment.
• Collaborate with cross-functional teams, including product, operations, and compliance, to gather requirements, provide estimates, and deliver high-quality solutions.
• Participate in sprint planning, code reviews, and system architecture discussions.
• Ensure backend systems follow security, compliance, and data privacy best practices.
• Monitor, analyze, and improve system performance through analytics, metrics, and logging integrations.
• Maintain documentation and contribute to knowledge sharing within the team.
• Work closely with senior engineers and architects; may mentor junior developers depending on experience level.

Required Skills and Experience:

• Minimum 6+ years of programming experience, ideally with a modern backend stack.
• 4+ years’ experience with Java, Kotlin, and Scala.
• Strong understanding of relational databases (PostgreSQL preferred) and ORM frameworks
• Experience with micro-services and service-oriented architectures (SOA).
• Cloud platforms experience (Kubernetes preferred).
• Proficiency with CI/CD pipelines.
• Test-driven development experience, including unit and integration testing.
• Proven ability to translate business requirements into scalable technical solutions.
• Familiarity with secure coding practices and regulatory compliance in financial services.
• Agile software development experience.

Nice to have skills:

• Experience with Fiserv systems and/or general credit product knowledge.
• NACHA experience (highly preferred).
• Experience processing ACH returns, NOCs, and DNEs.
• Exposure to analytics and monitoring tools.
• Relevant technical certifications (e.g., Java, Kubernetes, AWS, or NACHA Accredited ACH Professional).

Client Description:

Freelancing long-term with Aquent gets you access to some pretty cool things:

- You're paid weekly

- Subsidized health and dental benefits after your first four weeks of work (averaging at least 20 hrs/wk)

- Paid Sick Leave for all US and Canada talent

- Access to Fidelity 401(k) with company match

- Access to FSA Program (pre-tax payment toward bus or train passes, etc.)

- Direct deposit for your paycheck

- Access to our Talent Rewards Program (we reward for referrals!)

- Access to free online courses via Aquent's Gymnasium, to help you develop your skills: http://gymnasium.aquent.com/

- Aquent support: your Aquent Agent checks in with you during the course of your contract to make sure you're happy and progressing according to your expectations (we're also there to be looking for new opportunities for you when you're close to wrapping up)